254 results on '"single tooth implant"'
Search Results
2. Comparison of Clinical and Radiographic Results of Single Tooth Implants against Endodontic Treatment with Post and Crown Repair
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Mohammad Ali Esmaeeli, Ehsan Rafiei, Parisa Ranjbarian, and Nasim Maghamipour
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treatment outcome ,single tooth implant ,root canal therapy ,dental implan ,Dentistry ,RK1-715 - Abstract
The choice between the two modes of treatment, endodontic treatment and single tooth implants are very different depending on the dentist, design, definition of successful outcomes, evaluation methods, and sample size. The aim of this study was to compare the clinical and radiographic results of single tooth implants versus endodontic treatment with post and crown restoration in patients referred to the School of Dentistry of Islamic Azad University of Isfahan.Materials & Methods:In this cross-sectional analytical study in the academicyear 2021, 90 (46 females and 44 males) patients after recording demographic information and medical status, during three different time intervals post treatment (under 3 years, 3 to 5 years and Over 5 years) were examined clinically and radiographically (periapical). Outcome of treatment was classified based on clinical and radiographic findings into three categories: successful, surviving and unsuccessful. Data were analyzed using Chi-squared test (α = 0.05).Results:In this study, 60% of women and 40%of men had endodontic treatment and 42.2% of women and 57.8% of men had single tooth implants. There was no significant difference between the treatment outcomes in the studied groups (p value > 0.521). There was no statistically significant relationship between gender and type of treatment as well as gender and treatment satisfaction (p value > 0.05).Conclusion:Considering the preservation of natural teeth, if possible, root canal treatment is the main treatment of choice, otherwise a single-tooth implant can be a good alternative to missing or extracted teeth in terms of successful outcomes
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- 2022
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3. The volume of proximal bone projection can determine the osseous contour after immediate implant placement and guided bone regeneration in severe labial bony deficiency
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Monica Wang, Kazuyo Kuribayashi Sato, Lo-Lin Tsai, Wei Jen Chang, Yu-Chao Chang, and Chih-Yuan Fang
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Immediate implant placement ,Single tooth implant ,Guided bone regeneration ,Osseous contour ,Severe labial bony deficiency ,Dentistry ,RK1-715 - Abstract
Anterior immediate implant placement (IIP) has many biological and esthetic challenges, including inevitable soft and hard tissue loss after extraction. Previous literatures have discussed the facial bone architecture and defective socket classification. However, none of them discussed the depression of the cervical root area which can be seen frequently after IIP in type IIB and U-shaped defective sockets. In our limited experiences, we found that the labial interproximal bone edges of type IIB and U-shaped defect dominated the esthetic result after IIP. With more labial projection of the interproximal bone present, better esthetic result could be expected in the facial aspect. With adequate evaluation of this osseous scalloping before IIP, both patient and clinician could have a comprehensive understanding of the final esthetic result. This article also detailed the process of patient selection, diagnosis, surgical options, and executions required to achieve functional and esthetic success with IIP and provisionalization.
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- 2022
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- View/download PDF
4. مقايسهی نتايج کلینیکی و راديوگرافیک ايمپلنت تکدندان با درمان ريشه و ترمیم پست و کور.
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محمدعلي اسماعيل&, احسان رفيعي, پريسا رنجبريان, and نسيم مقاميپور
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DENTAL crowns ,DENTAL implants ,RESEARCH ,CROSS-sectional method ,TOOTH roots ,SURGERY ,PATIENTS ,PATIENT satisfaction ,DENTAL radiography ,TREATMENT effectiveness ,PATIENTS' attitudes ,ROOT canal treatment ,CHI-squared test ,DESCRIPTIVE statistics ,LONGITUDINAL method ,COMPLICATIONS of prosthesis ,EVALUATION - Abstract
Introduction: The choice between the two modes of treatment, endodontic treatment and single tooth implants are very different depending on the dentist, design, definition of successful outcomes, evaluation methods, and sample size. The aim of this study was to compare the clinical and radiographic results of single tooth implants versus endodontic treatment with post and crown restoration in patients referred to the School of Dentistry of Islamic Azad University of Isfahan. Materials & Methods: In this cross-sectional analytical study in the academic year 2021, 90 (46 females and during three different time intervals post treatment (under 3 years, 3 to 5 years and Over 5 years) were examined clinically and radiographically (periapical). Outcome of treatment was classified based on clinical and radiographic findings into three categories: successful, surviving and unsuccessful. Data were analyzed using Chisquared test (α = 0.05). Results: In this study, 60% of women and 40% of men had endodontic treatment and 42.2% of women and 57.8% of men had single tooth implants. There was no significant difference between the treatment outcomes in the studied groups (p value > 0.521). There was no statistically significant relationship between gender and type of treatment as well as gender and treatment satisfaction (p value > 0.05). Conclusion: Considering the preservation of natural teeth, if possible, root canal treatment is the main treatment of choice, otherwise a single-tooth implant can be a good alternative to missing or extracted teeth in terms of successful outcomes. [ABSTRACT FROM AUTHOR]
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- 2022
5. The volume of proximal bone projection can determine the osseous contour after immediate implant placement and guided bone regeneration in severe labial bony deficiency.
- Author
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Wang, Monica, Sato, Kazuyo Kuribayashi, Tsai, Lo-Lin, Chang, Wei Jen, Chang, Yu-Chao, and Fang, Chih-Yuan
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GUIDED bone regeneration ,FACIAL bones ,PATIENT selection ,LIPS ,DENTAL implants ,INTERDENTAL papilla - Abstract
Anterior immediate implant placement (IIP) has many biological and esthetic challenges, including inevitable soft and hard tissue loss after extraction. Previous literatures have discussed the facial bone architecture and defective socket classification. However, none of them discussed the depression of the cervical root area which can be seen frequently after IIP in type IIB and U-shaped defective sockets. In our limited experiences, we found that the labial interproximal bone edges of type IIB and U-shaped defect dominated the esthetic result after IIP. With more labial projection of the interproximal bone present, better esthetic result could be expected in the facial aspect. With adequate evaluation of this osseous scalloping before IIP, both patient and clinician could have a comprehensive understanding of the final esthetic result. This article also detailed the process of patient selection, diagnosis, surgical options, and executions required to achieve functional and esthetic success with IIP and provisionalization. [ABSTRACT FROM AUTHOR]
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- 2022
- Full Text
- View/download PDF
6. Single Tooth Implant versus Resin-Bonded Bridge: A Study of Patient's Satisfaction.
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Tong Wah Lim and Mohd Ariff, Tengku Fazrina Tengku
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DENTAL bonding ,DENTAL resins ,DENTAL implants ,QUESTIONNAIRES ,PATIENT satisfaction - Abstract
Objective: To compare the patients' satisfaction between patients treated with single tooth implant (STI) or resin bonded bridge (RBB) for single missing tooth replacement. Methods: A cross-sectional study was conducted in Faculty of Dentistry, Universiti Teknologi MARA (UiTM). Patients treated using STI (n=26) and RBB (n=26) were prospectively recruited. A validated patient satisfaction questionnaire was given to the participants to assess the aesthetics, masticatory function, phonetics, ease of cleaning and cost satisfaction using 7-point Likert scale. Demographic data (gender and age) and treatment data (site of treatment) were also collected. Differences in various aspects of satisfaction were compared. Results: STI and RBB groups has similar demographic and treatment characteristics. Both groups revealed high satisfaction with most of the aspects in the questionnaire. There was no statistically significant difference in overall satisfaction between the two treatment groups (p = 0.189). However, STI group had a significant higher score in existing appearance (p = 0.010), mastication (p = 0.018) and phonetics (p = 0.029) compared with RBB. Level of satisfaction did not differ by gender, age and site of the prostheses (p > 0.05). Almost all of the participants would choose to undergo the same treatment again in UiTM (STI = 96.2%, RBB = 92.3%). Conclusion: Both STI and RBB participants were highly satisfied with the aesthetics, phonetics, cost and found that the treatment fees were justified and reasonable in UiTM. Therefore, both treatment options are good to be indicated for single missing tooth replacement. [ABSTRACT FROM AUTHOR]
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- 2020
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7. Personality Traits and Annual Income Determine the Willingness to Pay for a Single Tooth Implant
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Shirlene Foo Yih Ting, Kimberley Chew Wen Chien, Nurul Hanis Ramzi, Allan Pau, and Rohit Kunnath Menon
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willingness to pay ,dental implant ,personality ,cost ,single tooth implant ,Medicine - Abstract
The objective of this study was to evaluate the factors influencing the willingness to pay for a single tooth implant in Malaysia and to assess if an additional evidence-based patient education video increases the willingness to pay. A total of 100 subjects seeking single tooth replacement at the Oral Health Centre, International Medical University (IMU), Kuala Lumpur, Malaysia, were asked to complete questionnaires about personal demographics and personality traits. Subsequently, they were randomly allocated into two groups. Group C received a conventional patient–dentist interaction on treatment options for missing teeth, while Group EV received the same content with an additional evidence-based video on the survival rate and complications for each option from recent meta-analyses. Willingness to pay the median price and the highest price that the subjects were willing to pay were assessed by a structured bidding process. A higher annual income was significantly associated with willingness to pay the median price for a single tooth implant (χ2 = 6.91, p = 0.03). Dominant personality traits of openness (r = −0.25), conscientiousness (r = −0.30) and agreeableness (r = −0.20) were negatively correlated with the highest price that the patients were willing to pay for a single tooth implant (Pearson’s correlation test, p < 0.05). No significant difference in willingness to pay was found between Group C and Group EV (χ2 = 0.05, p > 0.05). In conclusion, patient education strategies for single tooth replacements with dental implants should be customized based on a patient’s personality and income to maximize effectiveness.
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- 2021
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8. Replacement of missing tooth in esthetic zone with implant-supported fixed prosthesis
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Sunil Kumar Mishra, Ramesh Chowdhary, Padmakar S Patil, and Srinivasa B Rao
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Dental implants ,delayed loading ,frenectomy ,single tooth implant ,Medicine - Abstract
In the anterior region, the common reason for tooth loss is due to traumatic injury or congenital anomaly. Loss of a single tooth may cause functional and esthetic deficits to the patient. There are different treatment options available for replacing a missing incisor. Implant dentistry should be considered as first treatment alternative for replace a missing tooth. This case report presents the replacement of a missing maxillary left central incisor in a compromised site with dental implants along with bone graft followed by frenectomy to obtain a good clinical result and for better function and esthetics of the patient.
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- 2017
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9. A New Brånemark Single Tooth Abutment: Handling and Early Clinical Experiences.
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Andersson, Bernt, Ödman, Per, Carlsson, Lennart, and Brånemark, Per-Ingvar
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DENTAL abutments ,DENTAL implants ,ALUMINUM oxide ,ARTIFICIAL implants ,DENTURES ,PROSTHODONTICS - Abstract
A new prosthetic concept, today available under the name CeraOne♠, for single tooth replacement with the Brånemark system is described. This concept is characterized by a new design of the prefabricated components. A mechanical torque driver is used together with a gold screw and a special counter-torque device to ensure that the screw is tightened in an optimal manner to resist screw loosening and only transmit minor stress to the fixture interface. Another characteristic is the use of a prefabricated cap of sintered aluminum oxide as the basis for the ceramic crown. The crown is cemented to provide better esthetic possibilities even in situations of somewhat unfavorable fixture placement. [ABSTRACT FROM AUTHOR]
- Published
- 1992
10. Immediate single-tooth implant placement with simultaneous bone augmentation versus delayed implant placement after alveolar ridge preservation in bony defect sites in the esthetic region
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Arjan Vissink, Henny J. A. Meijer, Diederik F M Hentenaar, Kirsten W. Slagter, Gerry M. Raghoebar, Personalized Healthcare Technology (PHT), Man, Biomaterials and Microbes (MBM), and Translational Immunology Groningen (TRIGR)
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0301 basic medicine ,alveolar bone loss ,Immediate Dental Implant Loading ,Dentistry ,Esthetics, Dental ,law.invention ,Bone augmentation ,03 medical and health sciences ,Dental Implants, Single-Tooth ,0302 clinical medicine ,Randomized controlled trial ,law ,dental implants ,Alveolar Process ,Alveolar ridge ,Humans ,Medicine ,Tooth Socket ,business.industry ,Dental Implantation, Endosseous ,Soft tissue ,Alveolar Ridge Augmentation ,030206 dentistry ,Buccal administration ,Immediate implant ,Implant placement ,Treatment Outcome ,030104 developmental biology ,Tooth Extraction ,Periodontics ,bone transplantation ,business ,Single tooth implant - Abstract
Background It is unclear if an intact buccal bony plate is a prerequisite for immediate implant placement in post-extraction sockets. The aim of this 5-year randomized controlled trial was therefore comparison of peri-implant soft and hard tissue parameters, esthetic ratings, and patient-reported satisfaction of immediate implant placement in post-extraction sockets with buccal bony defects of >= 5 mm in the esthetic zone, with delayed implant placement after ridge preservation.Methods Patients presenting a failing tooth in the esthetic region and a buccal bony defect of >= 5 mm after extraction were randomly assigned to immediate (Immediate group, n = 20) or delayed (Delayed group, n = 20) implant placement. Second-stage surgery and placement of a provisional restoration occurred 3 months after implant placement in both groups, followed by definitive restorations 3 months thereafter. The follow-up was 5 years. Marginal bone level (primary outcome), buccal bone thickness, soft tissue parameters, esthetics, and patient-reported satisfaction were recorded.Results Mean marginal bone level change was -0.71 +/- 0.35 mm and -0.54 +/- 0.41 mm in respectively the Immediate group and the Delayed group after 5 years (P = 0.202). This difference, and in other variables, was not significant.Conclusions Marginal bone level changes, buccal bone thickness, clinical outcomes, esthetics, and patients' satisfaction following immediate implant placement, in combination with bone augmentation in post-extraction sockets with buccal bony defects of >= 5 mm, were comparable to those following delayed implant placement after ridge preservation in the esthetic zone.
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- 2021
11. Is the timing of implant placement and loading influencing esthetic outcomes in single‐tooth implants?—A systematic review
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João Caramês, Duarte Marques, Helena Francisco, Louise Leite Aiquel, and Catarina Pinto
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Dental Implants ,Esthetics ,business.industry ,Dental Implantation, Endosseous ,Dentistry ,Esthetics, Dental ,Treatment results ,Immediate implant ,Clinical trial ,Implant placement ,Dental Implants, Single-Tooth ,Immediate loading ,Humans ,Medicine ,Mucosal margin ,Oral Surgery ,business ,Single tooth implant - Abstract
Objectives To address the following question: "Is the timing of implant placement and/or loading influencing the esthetic outcomes of implant-supported single crowns?" Material and methods A literature screening was performed in four electronic databases until June 2020. Randomized controlled clinical trials with a minimum of 10 patients and 1 year of follow-up and reporting on dimensional changes of the peri-implant mucosa (midfacial recession, papilla level) and esthetic indexes were included. Cochrane Risk of Bias Tool was used, and comparable trials were subjected to meta-analyses. Results Out of 8549 articles, 72 full-text articles were assessed for eligibility and 18 were included. Nine trials evaluated the timing of implant placement, and nine trials evaluated the timing of loading. The included trials comparing immediate implant placement to delayed implant placement evaluating the midfacial recession reported heterogeneous findings. No differences were found at 1 and 2-years, when comparing midfacial recession and papilla level between immediate and early implant placement. In immediate and delayed implant placement, when comparing conventional and immediate loading, the midfacial mucosal margin change was not statistically significant at the 1-year follow-up. When evaluating the timing of implant placement and/or loading the included trials found no differences in the Pink Esthetic score, White Esthetic score, and Papilla Index between groups. Conclusions Both immediate and early implant placement protocols presented stable treatment results in terms of esthetic outcomes at the 1-, 2-, and 10-years follow-up. Loading protocols did not seem to influence esthetic outcomes in short- and medium-term follow-ups.
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- 2021
12. Comparison of digital and silicone impressions for single-tooth implants and two- and three-unit implants for a free-end edentulous saddle
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Mihoko Atsumi, Hiromasa Kawana, Hayato Tsuruoka, Katsuhiko Kimoto, Yurie Okuhama, Toshifumi Nakashizu, Kana Wakamori, Noriyuki Hoshi, Kei Fuchigami, and Koudai Nagata
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Dental Impression Technique ,Dental implant ,medicine.medical_treatment ,Silicones ,Digital impression ,Prosthesis ,Implant impression ,chemistry.chemical_compound ,Silicone ,Dental Implants, Single-Tooth ,medicine ,Humans ,General Dentistry ,Saddle ,Orthodontics ,Dental Implants ,business.industry ,Research ,Digital workflow ,RK1-715 ,Middle Aged ,chemistry ,Dentistry ,Oral and maxillofacial surgery ,Computer-Aided Design ,Implant ,Dental Prosthesis, Implant-Supported ,Mouth, Edentulous ,Prosthodontics ,business ,Intraoral scanner ,Single tooth implant - Abstract
Background The use of intraoral scanners (IOS) has facilitated the use of digital workflows for the fabrication of implant-supported prostheses not only for single missing teeth, but also for multiple missing teeth. However, the clinical application of IOS and computer-aided design/manufacturing (CAD/CAM) in implant-supported prosthodontics remains unclear. This study aimed to compare the accuracy of digital and silicone impressions for single-tooth implants for bounded edentulous spaces and two-unit and three-unit implant-supported fixed dental prostheses for free-end edentulous spaces. Methods This study enrolled 30 patients (n = 10 for each of the three groups) with an average age of 61.9 years. Conventional silicone-based and digital IOS-based impressions were made for all patients, and the implant superstructures were fabricated. We measured the scan-body misfit and compared the accuracy of the impressions for single-unit, two-unit, and three-unit implant prostheses with a bounded edentulous space by superimposing the standard triangulated language (STL) data obtained from IOS over the STL data of the plaster model used for final prosthesis fabrication. The scan bodies of the superimposed single-molar implant, two-unit implant prosthesis without teeth on the mesial side, two-unit implant prosthesis without teeth on the distal side, three-unit implant prosthesis without teeth on the mesial side, and three-unit implant prosthesis without teeth on the distal side were designated as A, B1, B2, C1, and C2, respectively. The misfit for each scan body was calculated and the accuracies were compared using the Tukey–Kramer method. Results The average scan-body misfit for conditions A, B1, B2, C1, and C2 was 40.5 ± 18.9, 45.4 ± 13.4, 56.5 ± 9.6, 50.7 ± 14.9, and 80.3 ± 12.4 μm, respectively. Significant differences were observed between the accuracies of A and B2, A and C2, and C1 and C2 (P Conclusions IOS and CAD/CAM can find clinical applications for implant-supported prostheses of up to three units for a bounded edentulous saddle. The use of IOS could render implant treatment easier, benefiting both the surgeons and patients. Prosthesis maladjustment may lead to peri-implantitis and prosthetic fracture. Therefore, further validation of the accuracy of IOS impressions is required in patients with multiple missing teeth in long-span implant prostheses.
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- 2021
13. The 'wrap-guided bone regeneration (GBR)-technique' is a predicted and stable way for alveolar cleft repair and dental implant placement
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Chih Wei Tseng, Chih Yuan Fang, Yen-Wen Huang, and Chuan Hang Yu
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Guided bone regeneration ,business.industry ,medicine.medical_treatment ,Dentistry ,RK1-715 ,Alveolar cleft ,Secondary bone graft ,Correspondence ,Medicine ,Single-tooth implant ,business ,Bone regeneration ,Dental implant ,General Dentistry ,Single tooth implant - Published
- 2021
14. How to perform immediate implant placement and provisionalization in patients with posterior bite collapse and premature contact of an anterior tooth - A case report
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Pei-Hui Chen, Chih Wei Tseng, Heng-Chia Chuang, and Chih-Yuan Fang
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Orthodontics ,Anterior tooth ,business.industry ,Immediate implant placement and provisionalization ,RK1-715 ,Immediate implant ,Bite collapse ,Dentistry ,Correspondence ,Esthetic outcome ,Premature contact ,medicine ,In patient ,Single-tooth implant ,medicine.symptom ,business ,General Dentistry ,Collapse (medical) ,Single tooth implant - Published
- 2021
15. Long‐term management of avulsed 'hopeless' teeth in the adult dentition
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Frank Spear and David P. Mathews
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Adult ,medicine.medical_treatment ,0206 medical engineering ,Treatment outcome ,Dentistry ,02 engineering and technology ,03 medical and health sciences ,Dental Implants, Single-Tooth ,0302 clinical medicine ,stomatognathic system ,Long term management ,medicine ,Humans ,Prospective Studies ,General Dentistry ,Adult dentition ,Simple (philosophy) ,Bone preservation ,Minimal risk ,business.industry ,030206 dentistry ,Tooth Avulsion ,020601 biomedical engineering ,Dentition, Permanent ,stomatognathic diseases ,Replantation ,business ,Single tooth implant - Abstract
Objective This case will demonstrate a thoughtful approach to the management of avulsed/replanted teeth in the adult dentition and their long-term maintenance. Often times these teeth are either not replanted, or extracted soon after replantation when resorptive lesions appear and the teeth are deemed "hopeless". The term "hopeless tooth" (HT) has become more popular since the advent of implants. Implants allowed for a simple solution to the HT by extraction and immediate replacement with a fixture and a restoration. However, now that we are realizing that implants do not last forever and also have attendant problems, saving the HT takes on a new light. Clinical considerations Prolonging the life of the HT can preserve bone and give the patient a functional, esthetic tooth for many years. With each additional year, clinicians garner new skills, and technology improves our future treatment outcomes. This will allow clinicians to improve and extend the life of future replacements. Conclusions If there is minimal risk to adjacent structures, retaining the HT has many advantages for the patient and clinician. Clinicians should adopt a policy of thinking ahead and asking "What's Next"? when their prospective treatment fails or needs to be replaced. By prolonging the life of the HT, the "best ultimate treatment" has a greater chance to outlive the patient. Clinical significance With the advent of single tooth implants, the term "hopeless tooth" has become more popular. It is easier to justify extraction of a tooth when it is deemed "hopeless". Many of these teeth could be saved. The advantages of this philosophy will be elucidated.
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- 2020
16. Fracture resistance of different implant abutments supporting all-ceramic single crowns after aging.
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Stimmelmayr, M., Heiß, P., Erdelt, K., Schweiger, J., and Beuer, F.
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DENTAL abutments ,TOOTH fractures ,DENTAL ceramics ,DENTAL crowns ,MECHANICAL behavior of materials ,SCANNING electron microscopy ,PREVENTION - Abstract
Copyright of International Journal of Computerized Dentistry is the property of Quintessence Publishing Company Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
17. Perceptibility and Acceptability of Color Differences of Single-Tooth Implants at the Restoration and Mucosa Levels: An Exploratory Clinical Study
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Jürg Hüsler, Tobias Waller, Christoph H. F. Hämmerle, Daniel S. Thoma, Ronald E. Jung, Erkan Evci, University of Zurich, and Thoma, Daniel S
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Mucous Membrane ,genetic structures ,3504 Oral Surgery ,business.industry ,Color ,Dentistry ,people.profession ,610 Medicine & health ,General Medicine ,Dental technician ,Clinical study ,10068 Clinic of Reconstructive Dentistry ,stomatognathic diseases ,Dental Implants, Single-Tooth ,stomatognathic system ,Humans ,Tooth color ,Medicine ,Implant ,Oral Surgery ,business ,people ,Tooth ,Color Perception ,Single tooth implant - Abstract
Purpose The aim of the present study was to assess the perceptibility and acceptability threshold values for color differentiation at the restoration and mucosa levels. Materials and methods One restored single-tooth implant and the contralateral reference tooth were spectrophotometrically assessed in 20 patients. Perceptibility and acceptability were evaluated by dentists, dental technicians, and laypeople. Results Dental technicians had the highest sensitivity in the perception of tooth color differences (ΔE = 2.7), followed by dentists (ΔE = 3.3) and laypeople (ΔE = 4.4). Acceptability threshold values were generally higher than perceptibility threshold in all groups. Dental technicians exhibited the highest sensitivity in the perception of mucosa color differences (50% perceptibility at ΔE = 2.65), followed by dentists (ΔE > 3.7) and laypeople (ΔE > 6). Conclusion Color differences were tolerated with varying degrees among the three groups. Laypeople accepted higher color differences at the mucosa level.
- Published
- 2020
18. Interdisciplinary management of congenitally missing maxillary lateral incisors
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Amita and Anurag Negi
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Orthodontics ,Molar ,business.industry ,Overjet ,VSI:Dentistry and Oral Health ,030206 dentistry ,Overbite ,medicine.disease ,Prosthodontist ,stomatognathic diseases ,03 medical and health sciences ,Dental arch ,0302 clinical medicine ,medicine.anatomical_structure ,stomatognathic system ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,Occlusion ,Medicine ,Implant ,business ,General Dentistry ,Single tooth implant - Abstract
Objective Missing maxillary lateral incisors is a common developmental anomaly and often creates a major esthetic problem due to their position in the dental arch. Treatment in such cases depends on either creation of space followed by prosthetic replacement or closing the space and replacing the missing lateral incisors by canines. In this report we highlight some of the key factors which should be considered for replacement of missing lateral incisors using single tooth implant. Methods This clinical report describes the treatment of a patient with bilateral missing maxillary lateral incisors. An interdisciplinary approach involving Orthodontist, implant surgeon and prosthodontist was used in the treatment. Results At the end treatment, the patient presented with class I molar and canine, normal overbite and overjet, and good facial esthetics with canine protected occlusion. Conclusion When indicated, space opening and replacement of missing lateral incisors with implant supported tooth substitution may provide excellent esthetics and functional results.
- Published
- 2020
19. Immediate implant placement in molar extraction sites: a 1-year prospective case series pilot study
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Gerry M. Raghoebar, Henny J. A. Meijer, Personalized Healthcare Technology (PHT), and Man, Biomaterials and Microbes (MBM)
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Molar ,Radiography ,Posterior region ,Dentistry ,lcsh:Medicine ,Implant survival ,SOCKETS ,REGION ,03 medical and health sciences ,0302 clinical medicine ,RESTORATIONS ,Medicine ,Extraction sites ,business.industry ,Research ,lcsh:R ,Implant failure ,030206 dentistry ,Immediate implant ,REPLACEMENT ,lcsh:RK1-715 ,030220 oncology & carcinogenesis ,Maxilla ,lcsh:Dentistry ,Implant ,PARTIALLY EDENTULOUS PATIENTS ,DIAMETER IMPLANTS ,business ,Single tooth implant ,Immediate implant placement - Abstract
Background There is a growing tendency to place single tooth implants immediately after extracting a failing tooth in the posterior region. The aim of this prospective case series pilot study was to evaluate immediate implant placement in molar post-extraction sites during a 1-year follow-up period. Materials and methods Fifteen consecutive patients with a single failing molar in the maxilla or mandible, and presenting enough bone to expect primary implant stability and an implant site free of infection, were included. The implants, with a large thread depth and sharp thread edges, were placed in each patient according to a two-staged surgical procedure. Three months later, a full contour screw-retained zirconia restoration with an angulated screw channel abutment was provided. Clinical and radiographic examinations were performed 1 month and 12 months after placing the restoration. In addition, the patients’ satisfaction with the restoration was scored after 12 months. Results Four out of 15 of the mobile implants had to be removed before the 1-year evaluation. The implant and restoration survival rates were 73.3% at the 1-year evaluation (n = 15). The mean marginal bone loss, from loading to the 12-month follow-up, was 0.17 mm (n = 11). The mean plaque, calculus, peri-implant mucosa, bleeding, and pocket probing depth scores were low, depicting healthy peri-implant conditions. The patients were very satisfied. Conclusion It was demonstrated, within the limitations of this study, that immediate placement of regular diameter implants in molar post-extraction sites in the maxilla and mandible resulted in a high implant failure rate during a 1-year follow-up period. Trial registration Netherlands Trial Register, NL8117. Registered 24 October 2019 - Retrospectively registered, https://www.trialregister.nl/trial/8117.
- Published
- 2020
20. Restorative Emergence Profile for Single-Tooth Implants in Healthy Periodontal Patients: Clinical Guidelines and Decision-Making Strategies
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Myron Nevins, Ernesto A. Lee, Joseph Y K Kan, Hom-Lay Wang, Stephen J Chu, Leila Jahangiri, and Guo-Hao Lin
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Periodontium ,Crowns ,business.industry ,Epithelial Attachment ,Junctional epithelium ,Connective tissue ,Soft tissue ,Dentistry ,030206 dentistry ,Esthetics, Dental ,Clinical Practice ,03 medical and health sciences ,Dental Implants, Single-Tooth ,0302 clinical medicine ,medicine.anatomical_structure ,Periodontics ,Medicine ,Natural tooth ,Implant ,Oral Surgery ,business ,Single tooth implant - Abstract
The peri-implant soft tissue seal consists of a connective tissue cuff and a junctional epithelium that is different from the arrangement of periodontium around a natural tooth. However, the peri-implant soft tissue complex lacks Sharpey's fibers, thus offering less resistance to clinical probing and biofilm penetration compared to the natural dentition. Therefore, the proper restorative emergence profile design is essential to facilitate favorable esthetic outcomes and maintain peri-implant health. The aim of this article is to review the currently available evidence related to the design of subgingival (critical and subcritical) and supragingival contours of the implant restorative emergence profile (IREP) as well as provide a flowchart for decision-making in clinical practice. Theoretically, the subgingival contours of the crown/abutment complex should mimic the morphology of the root and the cervical third of the anatomic crown as much and as often as possible. However, this is highly dependent upon the three-dimensional spatial position of the implant relative to the hard and soft tissue complex, in addition to the location of the definitive restoration. Frequently, a convex critical contour is required on the facial aspect of a palatally or incisally positioned implant to support an adequate gingival-margin architecture. Conversely, if the implant is placed too far facially, then a flat or concave contour is recommended. In instances where soft tissue support is not needed, the subcritical area may be undercontoured to increase the thickness, height, and stability of the soft tissue cuff.
- Published
- 2020
21. Clinical study on the active tactile sensibility test of single-tooth implants
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Fang Wang, Qin Li, and Bohan Yu
- Subjects
clinical bone sensation ,medicine.medical_treatment ,natural teeth ,Clinical study ,stomatognathic system ,medicine ,T1-995 ,TX341-641 ,Dental implant ,Technology (General) ,Orthodontics ,Implant dentures ,Nutrition. Foods and food supply ,Tactile sensibility ,business.industry ,Significant difference ,stomatognathic diseases ,Implant ,Natural tooth ,business ,implant dentures ,active tactile sensibility ,Food Science ,Biotechnology ,Single tooth implant - Abstract
To compare the active tactile sensibility (AST) between natural teeth and implant dentures, and explore the risk factors. To establish a database of normal tactile thresholds of natural teeth, and integrate the results from experiments. 50 patients underwent posterior dental implant restoration. A healthy group was also enrolled as control. Patients were firstly placed in semi-supine position with soothed tension and wore ear pads and goggles. Next, T-scan II digital occlusal analysis system (Tekscan,USA). The test was performed in double-blind way and recorded by the third. Results were analyzed using SPSS software and P value less than 0.05 was considered as statistically significant. Active tactile sensibility showed no statistically significant difference between natural teeth and dental implants among males and females (P > 0.05). However, there was difference between the natural tooth and implant tooth (P < 0.01), and there was also statistically significant difference between the front tooth and the back of the natural tooth and implant tooth (P < 0.01). There is no significant difference in the determination of the active tactile sensitive threshold difference between the implanted tooth and the natural tooth, which could serve as a comprehensive guiding for clinical strategies of tooth implantation.
- Published
- 2022
22. Screw loosening of different UCLA-type abutments after mechanical cycling
- Author
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Marcela C. Junqueira, Ricardo F. Ribeiro, Adriana Claudia L. Faria, Ana Paula Macedo, and Rossana P. Almeida
- Subjects
Dental implant ,Single tooth implant ,External hexagon ,Dentistry ,RK1-715 - Abstract
Aim: To evaluate the loss of applied torque (detorque) values in cast and pre-machined abutments for external hex abutment/implant interface of single implant-supported prostheses subjected to mechanical cycling. Methods: Ten metal crowns were fabricated using two types of UCLA abutments: cast and pre-machined with metal base in NiCrTi alloy and tightened to regular external hex implants with a titanium alloy screw, with an insertion torque of 32 N.cm, measured with a digital torque gauge. Samples were embedded with autopolymerizing acrylic resin in a stainless steel cylindrical matrix, and positioned in an electromechanical machine. Dynamic oblique loading of 120 N was applied during 5 x 105 cycles. Then, each sample was removed from the resin and detorque values were measured using the same digital torque gauge. The difference of the initial (torque) and final (detorque) measurement was registered and the results were expressed as percentage of initial torque. The results of torque loss were expressed as percentage of the initial torque and subjected to statistical analysis by the Student’s t-test (p
- Published
- 2015
- Full Text
- View/download PDF
23. Personality Traits and Annual Income Determine the Willingness to Pay for a Single Tooth Implant
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Allan Pau, Rohit Kunnath Menon, Kimberley Chew Wen Chien, Shirlene Foo Yih Ting, and Nurul Hanis Ramzi
- Subjects
Agreeableness ,single tooth implant ,Leadership and Management ,media_common.quotation_subject ,Health Informatics ,Article ,03 medical and health sciences ,0302 clinical medicine ,Health Information Management ,Willingness to pay ,cost ,Openness to experience ,Personality ,030212 general & internal medicine ,Big Five personality traits ,media_common ,dental implant ,Health Policy ,Conscientiousness ,030206 dentistry ,Bidding ,personality ,Medicine ,Psychology ,willingness to pay ,Demography ,Patient education - Abstract
The objective of this study was to evaluate the factors influencing the willingness to pay for a single tooth implant in Malaysia and to assess if an additional evidence-based patient education video increases the willingness to pay. A total of 100 subjects seeking single tooth replacement at the Oral Health Centre, International Medical University (IMU), Kuala Lumpur, Malaysia, were asked to complete questionnaires about personal demographics and personality traits. Subsequently, they were randomly allocated into two groups. Group C received a conventional patient–dentist interaction on treatment options for missing teeth, while Group EV received the same content with an additional evidence-based video on the survival rate and complications for each option from recent meta-analyses. Willingness to pay the median price and the highest price that the subjects were willing to pay were assessed by a structured bidding process. A higher annual income was significantly associated with willingness to pay the median price for a single tooth implant (χ2 = 6.91, p = 0.03). Dominant personality traits of openness (r = −0.25), conscientiousness (r = −0.30) and agreeableness (r = −0.20) were negatively correlated with the highest price that the patients were willing to pay for a single tooth implant (Pearson’s correlation test, p <, 0.05). No significant difference in willingness to pay was found between Group C and Group EV (χ2 = 0.05, p >, 0.05). In conclusion, patient education strategies for single tooth replacements with dental implants should be customized based on a patient’s personality and income to maximize effectiveness.
- Published
- 2021
24. The volume of proximal bone projection can determine the osseous contour after immediate implant placement and guided bone regeneration in severe labial bony deficiency
- Author
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Wei Jen Chang, Yu Chao Chang, Lo Lin Tsai, Chih Yuan Fang, Kazuyo Kuribayashi Sato, and Monica Wang
- Subjects
Orthodontics ,Guided bone regeneration ,Facial bone ,business.industry ,Short Communication ,Single tooth implant ,Osseous contour ,RK1-715 ,Immediate implant ,Hard tissue ,Severe labial bony deficiency ,Type iib ,Dentistry ,Medicine ,business ,Bone regeneration ,Projection (set theory) ,General Dentistry ,Process (anatomy) ,Immediate implant placement - Abstract
Anterior immediate implant placement (IIP) has many biological and esthetic challenges, including inevitable soft and hard tissue loss after extraction. Previous literatures have discussed the facial bone architecture and defective socket classification. However, none of them discussed the depression of the cervical root area which can be seen frequently after IIP in type IIB and U-shaped defective sockets. In our limited experiences, we found that the labial interproximal bone edges of type IIB and U-shaped defect dominated the esthetic result after IIP. With more labial projection of the interproximal bone present, better esthetic result could be expected in the facial aspect. With adequate evaluation of this osseous scalloping before IIP, both patient and clinician could have a comprehensive understanding of the final esthetic result. This article also detailed the process of patient selection, diagnosis, surgical options, and executions required to achieve functional and esthetic success with IIP and provisionalization.
- Published
- 2021
25. Understanding the Lived Experience of North American Dental Patients With a Single-Tooth Implant in the Upper Front Region of the Mouth: Protocol for a Qualitative Study
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Stephen Ross Bryant and Kelvin I Afrashtehfar
- Subjects
medicine.medical_treatment ,Population ,Computer applications to medicine. Medical informatics ,R858-859.7 ,610 Medicine & health ,single-tooth dental implants ,Phenomenology (philosophy) ,03 medical and health sciences ,0302 clinical medicine ,esthetics ,single-unit implant-supported restoration ,Protocol ,implant dentistry ,medicine ,Dental implant ,education ,patient-reported outcome measures ,personal satisfaction ,esthetic dentistry ,Protocol (science) ,Medical education ,Research ethics ,education.field_of_study ,030504 nursing ,Perspective (graphical) ,patient perception ,030206 dentistry ,General Medicine ,phenomenology ,Medicine ,610 Medizin und Gesundheit ,0305 other medical science ,Psychology ,Single tooth implant ,Qualitative research - Abstract
Background Assessment of the subjective experiences of individuals with maxillary anterior (ie, the upper front region of the mouth) single-tooth implants is limited mainly to quantitative measurements of satisfaction with appearance. Interestingly, there is unexplained variability in the relationship between satisfaction and appearance. Objective This qualitative study protocol aims to explore and better understand the satisfaction with appearance and function in a Canadian population with maxillary anterior single-tooth implants treated at a postgraduate university clinic. Thus, we aim to obtain diversity among participants relating to the identification of esthetically pleasing and displeasing cases from a clinician perspective. Methods A qualitative research design using interpretative phenomenology analysis (IPA) will provide an adaptable inductive research approach. The participants will be recruited, and consent documents, photographs, digital intraoral scans, and self-administered questionnaire responses will be obtained from them. The transcribed verbatim data from audio-recorded, in-depth, semistructured, one-to-one interviews of the participants will be managed, coded, and analyzed thematically with computer-assisted qualitative data analysis software. The IPA will consider the COnsolidated criteria for REporting Qualitative (COREQ) guidelines when applicable. Results For the qualitative interview, we plan to include at least eight patients to conduct up to 1.5 hours of open-ended interviews with each participant aided by an interview guide. Ethical approval was granted by the University of British Columbia Behavioral Research Ethics Board (H19-00107) in May 2019. Two American dental foundations funded this study. Conclusions The analysis in this study will elucidate the aspects (including their value) that influence participant satisfaction at different dental implant treatment stages. This will be the first qualitative study on this group of the population to explore and obtain a better understanding of their satisfaction with appearance and function, as well as any other patient-reported outcome measures that could be identified. International Registered Report Identifier (IRRID) DERR1-10.2196/25767
- Published
- 2021
26. A short term comparative evaluation of effectiveness of early loaded versus delayed loaded single tooth implants a clinical study
- Author
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Abhishek Verma, M L Bhongade, Irfanul Huda, and Aaysha Tabinda Nabi
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business.industry ,medicine.medical_treatment ,Mandible ,Dentistry ,Oral hygiene ,Comparative evaluation ,Clinical study ,stomatognathic diseases ,Maxilla ,Medicine ,Implant ,business ,Reduction (orthopedic surgery) ,Single tooth implant - Abstract
Introduction: To study the evaluation of effectiveness of early loaded versus delayed loaded single tooth implants. Aims & Objectives: To compare the effect of early loading implant (7-14 days) with delayed loading implant (4-5 months) after surgery on clinical and radiographic parameters, with 6 months follow-up. Material and Methods: 20 systemically healthy patients present with single missing tooth either in maxilla / mandible were treated with either early loading or delayed loading of single tooth implant. Results: Significant reduction in the plaque and papillary bleeding index at 6 months post-surgery indicated satisfactory improvement in oral hygiene and gingival condition. Delayed loaded implants group had a success rate of 100%, while early loaded implant group had 90%. Keywords: Early loading, Delayed loading, Single tooth implant.
- Published
- 2019
27. Guided Nitinol-Retained (Smileloc) Single-Tooth Dental Restorations
- Author
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Ole T. Jensen, Young Seo, George M. Yellich, and Curtis E. Jansen
- Subjects
Orthodontics ,Metal alloy ,business.industry ,medicine.medical_treatment ,Dental Abutments ,030206 dentistry ,Single tooth ,Crown (dentistry) ,03 medical and health sciences ,Dental Implants, Single-Tooth ,0302 clinical medicine ,Dental Prosthesis Design ,Otorhinolaryngology ,Alloys ,Humans ,Medicine ,Surgery ,Dental Prosthesis, Implant-Supported ,Oral Surgery ,030223 otorhinolaryngology ,business ,Abutment (dentistry) ,Dental Alloys ,Single tooth implant - Abstract
Nitinol metal alloy that changes shape according to temperature has been in clinical use at select clinics worldwide for the past 2 years and is now released for general use. The Smileloc Abutment and nitinol sleeve enable "cementless," "screwless," crown fastening that saves time and cost with the prospect of replacement of much of the present, sometimes troublesome, anthropic, soon to be anachronistic, technology.
- Published
- 2019
28. The accuracy of single‐tooth implants placed using fully digital‐guided surgery and freehand implant surgery
- Author
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Atiphan Pimkhaokham, Palita Smitkarn, Keskanya Subbalekha, and Nikos Mattheos
- Subjects
Cone beam computed tomography ,Shoulders ,medicine.medical_treatment ,Implant surgery ,Patient Care Planning ,03 medical and health sciences ,Dental Implants, Single-Tooth ,Imaging, Three-Dimensional ,0302 clinical medicine ,Humans ,Medicine ,030212 general & internal medicine ,Dental implant ,Dental Implants ,Orthodontics ,business.industry ,Dental Implantation, Endosseous ,030206 dentistry ,Cone-Beam Computed Tomography ,Surgery, Computer-Assisted ,Computer-Aided Design ,Periodontics ,Implant ,Mouth, Edentulous ,business ,Single tooth implant - Abstract
AIM This randomized controlled clinical trial (RCT) aimed to compare the accuracy of implant positions between static computer-assisted implant surgery (CAIS) and freehand implant surgery in a single edentulous space. MATERIALS AND METHODS Sites with single edentulous spaces and neighbouring natural teeth were randomized into static CAIS or freehand implant surgery groups. In both groups, digital implant planning was performed using data from cone beam computed tomography (CBCT) and surface scans. In the static CAIS group, a surgical guide was produced and used for fully guided implant surgery, while in the freehand group, the implants were placed in a freehand manner. Postoperative CBCT was used for nine measurements representing the deviations in angles, implant shoulders and apexes between planned and actual implant positions. RESULTS Fifty-two patients received 60 single implants. The median (IQR) deviations in angles, shoulders and apexes were 2.8 (2.6)°, 0.9 (0.8) mm and 1.2 (0.9) mm, respectively, in the static CAIS group, and 7.0 (7.0)°, 1.3 (0.7) mm and 2.2 (1.2) mm, respectively, in the freehand group. Statistically significant differences were found in 6 out of nine measured parameters using Mann-Whitney U test (p
- Published
- 2019
29. Therapeutic alternatives for addressing pink esthetic complications in single‐tooth implants: A proposal for a clinical decision tree
- Author
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Robert Carvalho da Silva, Paulo Fernando Mesquita de Carvalho, Julio Cesar Joly, and Oscar González-Martín
- Subjects
medicine.medical_specialty ,business.industry ,Decision Trees ,0206 medical engineering ,Decision tree ,030206 dentistry ,02 engineering and technology ,Esthetics, Dental ,020601 biomedical engineering ,03 medical and health sciences ,Tree (data structure) ,Dental Implants, Single-Tooth ,Treatment Outcome ,0302 clinical medicine ,Maxilla ,Medicine ,Orthodontic Extrusion ,Medical physics ,Implant ,business ,Clinical decision ,General Dentistry ,Single tooth implant - Abstract
OBJECTIVE Esthetic complications in implant therapy today represent a clinical challenge, when the aim is to overcome the sequelae and obtain a pleasing result. The current scientific literature about this topic is scarce and often based on case reports and the personal opinions of clinicians. CLINICAL CONSIDERATIONS The aim of this article is to introduce a decision tree for diagnosis and treatment of complications, focusing on the pink esthetic of single-tooth implants and based on three diagnostic pillars (3D implant position, peri-implant hard-tissue anatomy, and peri-implant soft-tissue anatomy). Different shortcomings have been identified for each of the three diagnostic areas. CONCLUSIONS Following this tree, the article proposes treatment alternatives including soft- and hard-tissue reconstruction, implant submergence, orthodontic extrusion, and implant extraction in order to help clinicians establish a logical therapeutic sequence. CLINICAL SIGNIFICANCE Guidelines for adequate diagnosis and management of single implant-supported restorations with compromised esthetics is mandatory when attempt to overcome shortcoming in the pink esthetic result.
- Published
- 2019
30. Clinical and radiological evaluation of delayed and early loading of single-tooth implant placement: A 6-month, prospective, randomized, follow-up clinical study
- Author
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Arthiie Thangavelu, Fairlin Prem, Santhosh Sekar, Dhivya Rajendran, Thangakumaran Suthanthiran, and Sasi Kumar Karupannan
- Subjects
radiographic bone loss ,lcsh:Analytical chemistry ,Dentistry ,single-tooth implants ,lcsh:RS1-441 ,Bioengineering ,General Biochemistry, Genetics and Molecular Biology ,Clinical study ,lcsh:Pharmacy and materia medica ,03 medical and health sciences ,0302 clinical medicine ,Female patient ,Early loading ,Medicine ,030212 general & internal medicine ,General Pharmacology, Toxicology and Pharmaceutics ,lcsh:QD71-142 ,business.industry ,Delayed loading ,Soft tissue ,030206 dentistry ,soft-tissue analysis ,Clinical trial ,early loading ,Radiological weapon ,Original Article ,Implant ,business ,mandibular posterior teeth ,Single tooth implant - Abstract
Purpose: The purpose of the study was to compare delayed and early loaded single-tooth implant technique. Materials and Methods: A randomized, prospective clinical trial was conducted to evaluate the clinical and radiological parameters of delayed and early loading of single-tooth implant placement. Fourteen male or female patients were selected randomly, who had single tooth missing in mandibular posterior region. A delayed implant placement technique was followed in these regions. A Hi-Tech implant (Life Care Implants) was performed. The patients were divided into two groups: delayed loading group and early loading group. In delayed loading groups, implants were loaded after 3 months, and in early loading groups, implants were loaded within 7 days to 2 months. Soft tissue and radiological bone loss were assessed at baseline, 3 months, and 6 months. The parameters assessed were plaque index, gingival index, probing pocket depth, thickness of peri-implant mucosa, and bone loss (radiographically). Results: The results show that there was no statistical difference in indexes taken between delayed loading and early loading groups. Conclusion: In this study, after first 6 months there was no difference in success rate between delayed loading or early loading of implants. This study also showed that more bone loss occurred around delayed loading implants. So it can be concluded that early loading technique can be successfully practiced instead of delayed loading of implants.
- Published
- 2019
31. Immediate Implant Loading in Compromised Maxillary Partially Edentulous Arch- A Case Report
- Author
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Sachhi Ramesh, Veena Patil, Anoop Jain, Reetika Gaddale, and Sunil Kumar Mishra
- Subjects
dental implant ,implant ,immediate loading ,implant loading ,single tooth implant ,Medicine - Abstract
As the aesthetic demands are increasing day by day, demand of immediate restoration or replacement of teeth is also increasing. Because of this, immediate implant placement, along with immediate loading of implant, is a favourite treatment option for patients as well as dentists. This case report discusses the immediate implant loading in compromised maxillary anterior region, in which patient got immediate restoration of edentulous area. More importantly, from the patients’ points of view, immediate loading can produce positive social and psychological effects.
- Published
- 2014
- Full Text
- View/download PDF
32. A 5-Year Esthetic RCT Assessment of Anterior Maxillary Single-Tooth Implants with Different Abutment Interfaces
- Author
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Lyndon F. Cooper, Christopher A. Barwacz, Samer Abi Nader, E. Todd Scheyer, Clark M. Stanford, Jocelyne S. Feine, Michael K. McGuire, Ingeborg DeKok, and Glenn Reside
- Subjects
Crowns ,business.industry ,Radiography ,Bleeding on probing ,Alveolar Bone Loss ,Dentistry ,General Medicine ,Esthetics, Dental ,law.invention ,Dental Implants, Single-Tooth ,Randomized controlled trial ,law ,Inclusion and exclusion criteria ,Maxilla ,Medicine ,Humans ,Implant ,Prospective Studies ,Oral Surgery ,medicine.symptom ,Prospective cohort study ,business ,Abutment (dentistry) ,Single tooth implant - Abstract
This study sought to define the tissue responses at different implant-abutment interfaces by studying bone and peri-implant mucosal changes using a 5-year prospective randomized clinical trial design study. The conus interface was compared with the flat-to-flat interface and platform-switched implant-abutment systems.One hundred forty-one subjects were recruited and randomized to the three treatment groups according to defined inclusion and exclusion criteria. Following implant placement and immediate provisionalization in healed alveolar ridges, clinical, photographic, and radiographic parameters were measured at 6 months and annually for 5 years. The calculated changes in marginal bone levels, peri-implant mucosal zenith location, papillae lengths, and peri-implant Plaque Index and bleeding on probing were statistically compared.Forty-eight conus interface implants, 49 flat-to-flat interface implants, and 44 platform-switched implants were placed in 141 subjects. Six platform-switched interface and eight flatto- flat interface implants failed, most of them within 3 months. After 5 years, 33 conical interface, 28 flat-to-flat interface, and 27 platform-switched interface implants remained for evaluation. Calculation of marginal bone level change showed a mean marginal bone loss of -0.16 ± 0.45 (-1.55 to 0.65), -0.92 ± 0.70 (-2.90 to 0.20), and -0.81 ± 1.06 (-3.35 to 1.35) mm for conical interface, flat-to-flat interface, and platform-switched interface implants, respectively (P.0005). The peri-implant mucosal zenith changes were minimal for all three interface designs (0.10 mm and +0.08 mm, P.60). Only 16% to 19% of the surfaces had presence of bleeding on probing, with no significant differences (P.81) between groups. Interproximal tissue changes were positive and similar among the implant interface designs.Over 5 years, the immediate provisionalization protocol resulted in stable peri-implant mucosal responses for all three interfaces. Compared with the flat-to-flat and platform-switched interfaces, the conical interface implants demonstrated significantly less early marginal bone loss. The relationship of marginal bone responses and mucosal responses requires further experimental consideration.
- Published
- 2021
33. Immediate Single Tooth Implant
- Author
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Octavi Ortiz-Puigpelat, Federico Hernández-Alfaro, Albert Barroso-Panella, Pindaros-Georgios Foskolos, and Pablo Altuna
- Subjects
3d positioning ,Facial bone ,medicine.anatomical_structure ,business.industry ,medicine ,Soft tissue ,Dentistry ,Connective tissue ,Implant ,Complication ,business ,Abutment (dentistry) ,Single tooth implant - Abstract
Immediate implant placement (IIP) in post-extraction sockets in the anterior zone, with intact facial bone wall and soft tissues (Elian type I), has presented high success rates. The midfacial recession has been reported as the most common post-healing complication. However, the correct diagnosis, the appropriate 3D positioning of the implant, the insertion of bone graft in the gap between the implant and the buccal bone, the placement of connective tissue graft beneath the facial soft tissues followed by immediate aesthetics, or customized abutment placement can significantly decrease the incidence of the referred complication. In sockets with compromised facial bone wall but intact soft tissues (Elian type II), some authors have presented promising results of IIP, but it needs further investigation. There is little evidence for the prognosis of IIP in sockets with resorbed facial bone and soft tissues (Elian type III).
- Published
- 2021
34. Implant Dentistry - Why, When and How
- Author
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Jyothi, P.A., Prasanna, Renuka, and Leelavathi
- Published
- 2010
35. IMPLANTS IN THE AESTHETIC ZONE: A CASE REPORT.
- Author
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Singh, Sahibtej, Verma, Ashish, Randhawa, Navneet Singh, Narang, Ramandeep Singh, and Suveera
- Subjects
DENTAL implants ,COSMETIC dentistry ,BONE grafting - Abstract
The predictability of aesthetic success depends on the tissue loss present at the initiation of treatment. Replacement of single as well as multiple missing teeth in the aesthetic zone is challenging particularly when the three dimensional architecture of the existing bone and soft tissue is deficient. The bony housing in this instance would require augmentation to provide a configuration that permits placement of implants in optimal positions which in turn would result in pleasing aesthetics. The purpose of this case report is to evaluate the stability and aesthetics of a single tooth implant placed in the anterior maxillary region with a bony defect through grafting of autogenous bone and use of a growth factor. [ABSTRACT FROM AUTHOR]
- Published
- 2017
36. Sinus Elevation with an Alloplastic Material and Simultaneous Implant Placement: A 1-Stage Procedure in Severely Atrophic Maxillae.
- Author
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Jodia, Kunal, Sadhwani, Bipin, Parmar, Babu, Anchlia, Sonal, and Sadhwani, Shaili
- Abstract
Aims and objective: The aim of the study is to evaluate clinically and radiographically the long term success of one-stage direct (lateral) sinus lift procedure using alloplastic bone graft material and bio-absorbable membrane in conjunction with two stage implant placement in atrophic partially edentulous posterior maxilla. Materials and methods: One stage direct maxillary sinus lift in conjunction with two stage implant placement was carried out in 12 patients at 13 sites. All the patients were partially edentulous with posterior maxillary alveolar ridge height of >5 mm and were in the age group of 20-50 years. Bioactive glass putty, bio-absorbable collagen membrane and 3.75 × 11.5 mm implants were used. Loading of implants was done 6 months after placement of implants. Patients were evaluated clinically and radio-graphically 6, 18, 30 months after placement of implants to assess increase in residual ridge height, peri-implant condition (marginal bone loss, plaque and gingival index) and implant stability. Results: Maxillary first molar was the most common site (69.23 %) for sinus lift and implant placement. Caries was the most common cause (76.92 %) for loss of tooth. Increase in residual ridge height ranged from (71.43 to 133.33 %) as measured by Denta-Scan. Implant survival rate was 100 %. Marginal bone loss ranged from 0.68 to 1.22 mm. Implant stability was measured by periotest (−2.7 to −3.6). Only one patient had perforation of sinus membrane, but it was sealed satisfactorily by bio-absorbable membrane. Conclusion: One stage lateral sinus lift procedure with alloplastic bone graft material in combination with 2 stage implant placement has a predictable outcome in patients with severe resorption of posterior maxilla. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
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37. Are Predoctoral Students Able to Provide Single Tooth Implant Restorations in the Maxillary Esthetic Zone?
- Author
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Taylor, Emily J., Yuan, Judy Chia-Chun, Lee, Damian J., Harlow, Rand, Afshari, Fatemeh S., Knoernschild, Kent L., Campbell, Stephen D., and Sukotjo, Cortino
- Abstract
The objective of this study was to assess the ability of the University of Illinois at Chicago College of Dentistry (UIC-COD) predoctoral students to provide single tooth implant (STI) prostheses in the maxillary esthetic zone. The patient's esthetic satisfaction and the correlation between prosthodontists' and patients' perspectives were examined. Twenty-seven patients were recruited for recall examinations at the UIC-COD predoctoral implant program and underwent clinical and radiographic examina-tion with clinical photographs of the implant sites. The patients completed a semantic differential scale questionnaire. The col-lected information was formulated into a PowerPoint presentation for two Diplomate of the American Board of Prosthodontists to use the Pink/White Esthetic Score (PES/WES) to evaluate the esthetic outcome. Descriptive analyses, Cohen kappa test, and Spearman rank correlation coefficient test were performed. The average PES/WES were above 6.0 (out of 10). The median for the patient satisfaction and esthetic outcome questionnaires were 10 and 9, respectively, on a scale with 10=highest. There was a medium and positive correlation between prosthodontists' and patients' perspectives in esthetic outcome. This study found that, with strict guidance and proper selection criteria, predoctoral students were able to provide esthetically acceptable STI prostheses in the maxillary esthetic zone and patients were satisfied with the treatment provided. [ABSTRACT FROM AUTHOR]
- Published
- 2014
38. Randomized clinical trial of zirconia and polyetheretherketone implant abutments for single-tooth implant restorations: A 5-year evaluation
- Author
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Vinni Thavakkara, Mohamed Saheer Kuruniyan, Arya Saraswathy, Neethu Latha, Pramodkumar Ayyadanveettil, and Meenu Pavanan
- Subjects
business.industry ,Bleeding on probing ,Dentistry ,030206 dentistry ,Plaque control ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Randomized controlled trial ,law ,Peek ,Premolar ,Medicine ,Cubic zirconia ,Implant ,Oral Surgery ,medicine.symptom ,business ,Single tooth implant - Abstract
Statement of problem Titanium-supported polyetheretherketone (PEEK) abutments provide an economic alternative to zirconia abutments in esthetically important areas. Research comparing the performance regarding esthetics, longevity, and biologic parameters of PEEK abutments is lacking. Purpose The purpose of this clinical study was to determine whether PEEK implant abutments provide similar esthetic and biologic parameters and survival rates as zirconia implant abutments. Material and methods Forty participants (age 20 to 50 years) receiving maxillary anterior and premolar implants were enrolled in the study and randomly assigned into 1 of 2 groups: Group PEEK (20 titanium-supported PEEK abutments) and group ZIR (20 zirconia abutments). Both groups were restored with pressed lithium disilicate ceramic crowns. Technical, biologic, and esthetic evaluation was performed at baseline and at 1, 3, and 5 years. The probing pocket depth, plaque control record, and bleeding on probing were recorded at the abutments (test) and compared with those at the corresponding contralateral teeth (control) and also between the 2 test groups. Standardized digital radiographs of the implants were made, and the bone level was recorded with the implant shoulder as the reference on the mesial and distal sides. The color difference between the peri-implant mucosa and control teeth gingiva and the discoloration of the implant crowns were determined with a spectrophotometer. The Student unpaired t test and repeated-measure ANOVA were used to statistically analyze the data (α=.05). Results From the 5-year evaluation, both PEEK and zirconia abutments with ceramic crowns showed 100% survival rate without any fracture or restoration loss. Differences in the biologic parameters of zirconia and PEEK abutments were statistically similar: mean probing pocket depth (group ZIR: 2.32 ±0.50 mm, group PEEK: 2.13 ±0.60 mm); mean plaque control record (group ZIR: 0.19 ±0.19, group PEEK: 0.15 ±0.17); and mean bleeding on probing (group ZIR: 0.12 ±0.11, group PEEK: 0.08 ±0.12). The mean marginal bone loss at 5 years was similar for implants supporting zirconia and PEEK abutments: mean mesial bone level (group ZIR: 1.8 ±0.5 mm; group PEEK: 1.9 ±0.6 mm), and mean distal bone level (group ZIR: 1.7 ±0.6 mm, group PEEK: 1.8 ±0.3 mm). The initial color difference (ΔE) between the peri-implant mucosa and gingiva of the analogous contralateral teeth diminished over time. No discoloration of the definitive restoration supported by PEEK or zirconia was detected over 5 years. Conclusions At the 5-year evaluation, zirconia and PEEK abutments exhibited the same survival rate with similar biologic and esthetic outcomes.
- Published
- 2020
39. Effect of screw access channel on the fracture rate of lithium disilicate cement-retained implant-supported posterior crowns
- Author
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Mohamed Moataz Khamis and Niveen Hazem Zakaria
- Subjects
Materials science ,medicine.medical_treatment ,Bone Screws ,Dental Cements ,Crown (dentistry) ,03 medical and health sciences ,Dental Materials ,0302 clinical medicine ,stomatognathic system ,Lithium disilicate ,medicine ,Humans ,Dental Restoration Failure ,Orthodontics ,Dental Implants ,Crowns ,Cement retained ,030206 dentistry ,Dental Porcelain ,Glass Ionomer Cements ,Fracture (geology) ,Posterior teeth ,Dental Prosthesis, Implant-Supported ,Oral Surgery ,Implant supported ,Single tooth implant ,Communication channel - Abstract
Statement of problem Whether the presence of a screw access channel on the occlusal surface of a lithium disilicate cement-retained single tooth implant restoration reduces its fracture rate is unclear. Purpose The purpose of this randomized controlled clinical trial was to compare the fracture rate of lithium disilicate cement-retained posterior single tooth implant restorations with or without screw access channels. The study also evaluated whether the crown dimensions and location of the occlusal screw access channel would affect the fracture rate. Material and methods A split-mouth study was conducted where 40 participants having 2 implants placed to restore single missing posterior teeth with crowns were enrolled. Implants were randomly allocated into a conventional crown group or a screw access group, receiving cement-retained restorations fabricated from lithium disilicate glass-ceramic with and without an occlusal screw access channel. Crown dimensions were recorded in millimeters from the designing software. Follow-up evaluations were made at 3, 6, and 12 months by observing visible cracks or fractures of the crowns. The Kolmogorov-Smirnov test of normality was used. Comparisons were carried out by using the Student and Welch t tests (α=.05). Results After a 12-month follow-up period, no crowns fractured or revealed visible cracks, resulting in a 100% success rate. No statistically significant differences were found between the conventional crown group and screw access channel group in all crown dimensions (P>.05). Conclusions The presence of an occlusal screw access channel did not affect the short-term fracture rate of lithium disilicate cement-retained single implant–supported posterior crowns. The amount of axial cantilever, occlusal ceramic thickness, and location of the screw access channel on the occlusal surface of the restoration have no effect on its fracture rate.
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- 2020
40. Evaluation of Clinical Single Dental Implants Made between 2013 and 2017
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Zozan Erdoğmuş
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business.industry ,Medicine ,Dentistry ,Retrospective cohort study ,Risk factor ,business ,Single tooth implant - Published
- 2020
41. Comparison of the Accuracy and Time Efficiency of Two Different digital Impressions of Single Tooth Implant Treatments
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Muhammed Alibrahim, Yılmaz Umut Aslan, Alibrahim, Muhammed, and Aslan, Yilmaz Umut
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FIXED PROSTHODONTICS ,medicine.medical_treatment ,Time efficiency ,Implant impression ,CAD/CAM ,03 medical and health sciences ,0302 clinical medicine ,CEREC ,Health Care Sciences and Services ,medicine ,Sağlık Bilimleri ve Hizmetleri ,Dental implant ,Intraoral digital scanning ,Accuracy ,CONVENTIONAL IMPRESSIONS ,Mathematics ,Orthodontics ,030504 nursing ,Significant difference ,030206 dentistry ,General Medicine ,Intraoral digital scanning,Implant impression,Accuracy,CAD/CAM ,Impression ,CROWNS ,Polyvinyl siloxane ,Implant ,0305 other medical science ,Single tooth implant - Abstract
Objective: Over the last decades, techniques and materials have evolved with the improvement in digital technology. Computer-aided impressions have been transforming the dental implant field with these developments. The aim of this in vivo study was to compare the accuracy and time efficiency between two intraoral scanning systems in single tooth implant treatment. Material and Method: 10 patients with single tooth bone level implant (Straumann, Basel, Switzerland) received one conventional impression with polyvinyl siloxane and three scans with 2 different intra-oral scanners (CEREC AC Omnicam and Straumann CARES IOS). The time required for the impressions was measured at this stage. The casts obtained from conventional impressions were scanned as the master model to evaluate accuracy. Digital impression files were analyzed using software (Geomagic Control). Independent Samples Test was performed for trueness and precision. One-way ANOVA was executed for time efficiency. Least significant difference test for post hoc comparison was conducted (p0.05), but a statistically significant difference was found in the time efficiency (P
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- 2020
42. Clinical benefits and effectiveness of static computer-aided implant surgery compared with conventional freehand method for single-tooth implant placement
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Mine Dündar Çömlekoğlu, B. Güniz Baksı, Tayfun Günbay, M. Özden Yüce, Ali Mert, and Ege Üniversitesi
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Cone beam computed tomography ,Visual analogue scale ,Dental implant ,medicine.medical_treatment ,Dentistry ,Implant surgery ,03 medical and health sciences ,0302 clinical medicine ,Dental Implants, Single-Tooth ,Medicine ,Humans ,In patient ,030223 otorhinolaryngology ,Accuracy ,Dental Implants ,business.industry ,Dental Implantation, Endosseous ,030206 dentistry ,Cone-Beam Computed Tomography ,Otorhinolaryngology ,Surgery, Computer-Assisted ,Computer-aided implant surgery ,Computer-aided ,Surgery ,Implant ,Oral Surgery ,business ,Single tooth implant - Abstract
Purpose: To evaluate the effectiveness of static computer-aided surgery technique with the conventional freehand method to assess the role of the surgical template in terms of duration of operation and postoperative pain levels. Methods: Total of 26 implants were placed: 13 using tooth-supported surgical templates; and 13 using the conventional freehand method. Duration of the surgery was recorded for all operation sites. After implant insertion, all patients were asked to evaluate two separate visual analog scales (VAS) at regular intervals for 1 week. All patients underwent cone beam computed tomography (CBCT) evaluation to assess the depth of deviation of the planned and placed implants. Results: the deviation of implants inserted using the computer-aided surgical technique and conventional freehand technique demonstrated no significant differences (P < 0.05). However, the computer-aided surgery technique significantly decreased the duration of the surgery and post-op pain levels. Conclusion: Tooth supported surgical templates had no particular effect on the accuracy of single implant placement. Nevertheless, this procedure allows flappless surgery with minimal invasive approach, reduce operation time and post-op pain levels. If further studies with larger study samples confirm the abovementioned results, surgical templates may be recommeded even in patients with single tooth loss. (C) 2019 Elsevier Masson SAS. All rights reserved.
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- 2020
43. Evaluation of subgingival microbiota around single tooth implants
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R. Shakila, Shyam Singh, G. Murali, and Amit Kumar Tamrakar
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Microbiological culture ,Curette ,business.industry ,Pseudomonas aeruginosa ,medicine.medical_treatment ,VSI:Dentistry and Oral Health ,Dentistry ,030206 dentistry ,medicine.disease ,medicine.disease_cause ,03 medical and health sciences ,stomatognathic diseases ,0302 clinical medicine ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,medicine ,Implant ,Enterobacter species ,Klebsiella pneumonia ,business ,Dental implant ,General Dentistry ,Single tooth implant - Abstract
Objectives 1. To provide information about the subgingival microbiota around single tooth implants.2. To assess the subgingival microbial flora around the teeth adjacent to single tooth implants.3. To clinically evaluate the gingival health surrounding the single-tooth implants. Methods Patients undergoing the single-tooth implant replacements, were selected as subjects for the study. The natural teeth adjacent to implant sites were taken as control sites. Clinically each peri-implant gingival tissue health was evaluated. Subgingival plaque samples were removed with sterile curette and evaluated for microbial flora, by microscopic examinations. Bacterial cultures of samples studied. The similar procedure was followed for the control sites also. Finally the data collected were statistically analyzed and interpreted. Results The subgingival microbiota around single tooth implants was cultured and studied. Enterobacter species, Klebsiella pneumonia, Pseudomonas aeruginosa and Streptococcus species were predominantly found. Klebsiella pneumonia and Pseudomonas aeruginosa were found more frequently around implant sites than control sites. Anaerobic Bacteroides species were found in only one case around the implant site. Conclusions Prevention and control of bacterial infection in the peri-implant region are among the key factors in determining the long term success or failure of dental implant therapy. The thorough knowledge about the subgingival microbiota around the healthy and diseased peri-implant mucosa is needed to determine the overall outcome of implant therapy.
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- 2020
44. Root canal treatment versus single-tooth implant
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Muhammad Sohail Zafar, Hani M. Ghabbani, Zohaib Khurshid, Mothanna Alrahabi, and Ahmad Alnazzawi
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medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Root canal ,Dentistry ,Physical examination ,Endodontics ,law.invention ,medicine.anatomical_structure ,Randomized controlled trial ,law ,Treatment plan ,medicine ,Fixed Bridges ,Implant ,business ,Single tooth implant - Abstract
The criteria and indications for choosing either root canal treatment (RCT) or a single-tooth implant (STI) are debatable and may vary from one patient to the other. In general, the preference of choosing a treatment plan is dependent on various factors including clinical considerations, experience, and opinion of the operator. In either case, the purpose of treatment is the same; restoring the esthetic, functional components and quality of patients’ life. Both endodontic treatment and single-tooth implant therapy showed a promising outcome with a similar success rate. The implant restorations need comparatively more postoperative intervention compared to the endodontically treated teeth. A tooth with questionable prognosis for endodontic treatment may have a higher risk of failure and can be treated by endodontics; however, may not be utilized in case of long-span fixed bridges. Therefore, every case should be assessed carefully considering individual variations, patient’s history, and radiographic and clinical examination. This chapter aims to demonstrate a systematic procedure and criteria associated with decision making regarding endodontics and implants treatment alternatives, based on currently available pieces of evidence.
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- 2020
45. Digital vs. Freehand Anterior Single-Tooth Implant Restoration
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Jacopo Colombo, F M Motta, N Scotti, Domenico Baldi, A Zillio, and F Motta
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Adult ,0301 basic medicine ,Parallel beam ,Immediate Dental Implant Loading ,Article Subject ,Alveolar Bone Loss ,Dentistry ,Esthetics, Dental ,Oral hygiene ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,Dental Implants, Single-Tooth ,0302 clinical medicine ,Maxilla ,Humans ,Medicine ,Tooth Socket ,Crestal bone ,Crowns ,General Immunology and Microbiology ,business.industry ,Soft tissue ,030206 dentistry ,General Medicine ,Single tooth ,Incisor ,Treatment Outcome ,030104 developmental biology ,Homogeneous ,Tooth Extraction ,Implant ,business ,Research Article ,Follow-Up Studies ,Single tooth implant - Abstract
Replacing a single tooth in the anterior maxilla is one of the greatest challenges in dentistry. Both functional and aesthetic results are to be strictly pursued. Planning and executing such a case through a totally digital methodology eventually guarantee many advantages, above all patient’s operative and postoperative comfort. To ascertain this, a BOP analysis was performed which allowed us to evaluate soft tissues health, and more; crestal bone resorption was measured to evaluate hard tissues stability. This assumption was studied through four cases in which patients were alternatively treated with analogic and digital techniques. Four homogeneous patients were recruited. They all needed to extract one of the upper incisors, due to different clinical reasons, and then to replace it with an implant. Each patient was treated with an immediate postextractive implant which was immediately loaded, and finally, analogical and digital techniques were compared. All patients underwent a preoperative CBCT examination. After surgery, patients were checked by the surgeon after 10 days and one month to evaluate the progress of healing and to exclude any prosthetic problem. At 6 months (T1), one year (T2), and three years (T3), intraoral x-rays were performed using customized centring devices, according to the parallel beam technique. All data have been collected in a table and statistically processed; mean and standard deviation were measured. All patients entered an oral hygiene program with six months recall. Dental hygienist checked the BOP at T1, T2, and T3. At every step, similar levels of BOP were recorded. About interproximal bone loss, all patients showed an initial moderate loss (between T1 and T2), followed by stable values between T2 and T3. Despite the important limitations of a study with few cases, these results show a similar outcome comparing digital and analogical methods.
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- 2020
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46. Finite element analysis of a one-piece zirconia implant in anterior single tooth implant applications
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Georgi Talmazov, Aous A. Abdulmajeed, Sompop Bencharit, and Nathan J. Veilleux
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Teeth ,Medical Implants ,Physiology ,02 engineering and technology ,Diagnostic Radiology ,Incisors ,Dental Implants, Single-Tooth ,0302 clinical medicine ,Materials Testing ,Medicine and Health Sciences ,Maxilla ,von Mises yield criterion ,Biomechanics ,Yttrium ,Cubic zirconia ,Orthodontics ,Multidisciplinary ,Applied Mathematics ,Radiology and Imaging ,Bone and Joint Mechanics ,Bone Imaging ,Finite element method ,Biomechanical Phenomena ,Incisor ,medicine.anatomical_structure ,Physical Sciences ,Engineering and Technology ,Medicine ,Bone Remodeling ,Anatomy ,Research Article ,Biotechnology ,Dental Stress Analysis ,Materials science ,Imaging Techniques ,Science ,Finite Element Analysis ,0206 medical engineering ,Bioengineering ,Research and Analysis Methods ,03 medical and health sciences ,Diagnostic Medicine ,medicine ,Humans ,Computer Simulation ,Maxillary central incisor ,Bone Resorption ,Titanium Implants ,Biology and Life Sciences ,Titanium alloy ,030206 dentistry ,020601 biomedical engineering ,Jaw ,Medical Devices and Equipment ,Cortical bone ,Stress, Mechanical ,Zirconium ,Implant ,Physiological Processes ,Digestive System ,Head ,Mathematics ,Single tooth implant - Abstract
This study evaluated the von Mises stress (MPa) and equivalent strain occurring around monolithic yttria-zirconia (Zir) implant using three clinically simulated finite element analysis (FEA) models for a missing maxillary central incisor. Two unidentified patients' cone-beam computed tomography (CBCT) datasets with and without right maxillary central incisor were used to create the FEA models. Three different FEA models were made with bone structures that represent a healed socket (HS), reduced bone width edentulous site (RB), and immediate extraction socket with graft (EG). A one-piece abutment-implant fixture mimicking Straumann Standard Plus tissue level RN 4.1 X 11.8mm, for titanium alloy (Ti) and Zir were modeled. 178 N oblique load and 200 N vertical load were used to simulate occlusal loading. Von Mises stress and equivalent strain values for around each implant model were measured. Within the HS and RB models the labial-cervical region in the cortical bone exhibited highest stress, with Zir having statistically significant lower stress-strain means than Ti in both labial and palatal aspects. For the EG model the labial-cervical area had no statistically significant difference between Ti and Zir; however, Zir performed better than Ti against the graft. FEA models suggest that Ti, a more elastic material than Zir, contributes to the transduction of more overall forces to the socket compared to Zir. Thus, compared to Ti implants, Zir implants may be less prone to peri-implant bone overloading and subsequent bone loss in high stress areas especially in the labial-cervical region of the cortical bone. Zir implants respond to occlusal loading differently than Ti implants. Zir implants may be more favorable in non-grafted edentulous or immediate extraction with grafting.
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- 2020
47. Single tooth implants in the esthetic zone following a two-stage all flapless approach: A retrospective analysis
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Lukas Hingsammer, Bernhard Pommer, Georg Mailath-Pokorny, Dieter Busenlechner, Robert Haas, Rudolf Fürhauser, University of Zurich, and Hingsammer, Lukas
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Adult ,Male ,Facial bone ,Radiography ,0206 medical engineering ,Alveolar Bone Loss ,Dentistry ,610 Medicine & health ,02 engineering and technology ,Esthetics, Dental ,Surgical Flaps ,03 medical and health sciences ,Dental Implants, Single-Tooth ,0302 clinical medicine ,Retrospective analysis ,Tooth loss ,Humans ,Medicine ,Stage (cooking) ,General Dentistry ,Aged ,Retrospective Studies ,3504 Oral Surgery ,business.industry ,Dental Implantation, Endosseous ,030206 dentistry ,Middle Aged ,3500 General Dentistry ,020601 biomedical engineering ,Radiological weapon ,Female ,Implant ,10069 Clinic of Cranio-Maxillofacial Surgery ,Oral Surgery ,medicine.symptom ,business ,Single tooth implant - Abstract
Background Due to chronic inflammation or trauma facial bone is frequently missing after tooth loss in the esthetic zone. As a consequence, procedures to augment or at least to preserve bone are frequently necessary prior to implant placement. Purpose The aim of this retrospective case series is to demonstrate the applicability of a staged all-flapless concept to establish satisfactory implant restorations following situations of partial missing facial bone in the esthetic zone. Materials and methods Radiological/clinical data of 25 patients were analyzed and an esthetic evaluation of 24 patients was performed. The staged concept included ridge preservation at time of tooth extraction and delayed guided implant placement. Marginal bone loss was measured radiologically and esthetic evaluation was performed based on standardized photographs using the Pink Esthetic Score as well as the Papilla Index. Results Implant success rate revealed 100%. The mean radiological peri-implant marginal bone loss measured 1.16 mm (SD: 0.16). Regarding the esthetic outcome 71% of patients were evaluated with a Pink Esthetic Score higher or equal to 10 constituting satisfactory esthetics (median pink esthetic score: 10). The mean follow-up time for clinical and radiographic analysis was 1.3 years (SD: 0.6 years) and 1.2 years (SD: 0.6) for esthetic evaluation. Conclusion Although marginal bone loss cannot be avoided, the staged concept of flapless ridge preservation and subsequent delayed flapless guided implant placement carries the potential to improve esthetics of single-tooth implants in the anterior maxilla.
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- 2018
48. Evaluation of the influence of implant placement timing on the esthetic outcomes of single tooth implant treatment in the anterior maxilla: A retrospective study
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Saso Ivanovski and Himanshu Arora
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Male ,Anterior maxilla ,0206 medical engineering ,Dentistry ,02 engineering and technology ,Esthetics, Dental ,03 medical and health sciences ,Dental Implants, Single-Tooth ,0302 clinical medicine ,Maxilla ,Humans ,Medicine ,Clinical significance ,General Dentistry ,Retrospective Studies ,Crowns ,business.industry ,Soft tissue ,Retrospective cohort study ,030206 dentistry ,Immediate implant ,020601 biomedical engineering ,Implant placement ,Treatment Outcome ,Female ,Implant ,business ,Single tooth implant - Abstract
Objectives The purpose of this retrospective study was to investigate the influence of implant placement timing on the esthetic outcomes for single implants in the anterior maxilla. Materials and methods One hundred and ten patients (48 males; 62 females) who received a single-tooth implant after extraction either immediately (Type 1); after 4-8 weeks (Type 2); after 8-16 weeks (Type 3); or more than 16 weeks (Type 4) were evaluated in terms of esthetic outcomes after a mean post-placement interval of 26.3 months (range 12-116). Esthetic outcomes were measured using the Pink and White Esthetic Score (PES; WES). Stepwise regression analysis was performed to analyze the effect of timing of placement, as well as patient demographics and other clinical parameters on the esthetic outcomes. Results No statistically significantly differences in PES were found between the various treatment modalities with Type 1 implants (n = 33) scoring 10.58 ± 1.65 (median: 11), followed by 10.36 ± 2.09 (median: 10.5), 9.68 ± 2.43 (median: 10), and 9.63 ± 2.21 (median: 10) for Type 2 (n = 14), Type 3 (n = 19), and Type 4 (n = 44), respectively. For immediate implants, a trend towards better esthetic outcomes was observed when implant placement was done flaplessly in cases with intact buccal bone (Type 1A, median PES 11) as compared to cases with partial/complete missing buccal plates where a flap was raised (Type 1B, median PES 10). Overall, the only parameter that influenced esthetic outcomes (as measured by PES) was gender, with females having significantly superior results. The median WES was 8 and 96% of the crowns were deemed esthetically acceptable, with crowns placed by specialist prosthodontists yielding higher scores than those placed by general practitioners. Conclusions Single tooth implants in the anterior maxilla showed satisfactory outcomes when measured with objective esthetic criteria. Timing of implant placement did not significantly influence the esthetic outcomes, although a trend towards better outcomes was seen with immediate implant placement as observed by higher median PES values. Clinical significance Single tooth implant placement in the anterior maxilla is a predictable treatment modality for achieving acceptable esthetic outcomes regardless of the timing of placement.
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- 2018
49. Esthetic evaluation and patient-centered outcomes in single-tooth implant rehabilitation in the esthetic area
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Matteo Marzadori, Claudio Mazzotti, Pietro Felice, Martina Stefanini, Giovanni Zucchelli, Ilham Mounssif, Stefanini, M, Felice, P, Mazzotti, C, Mounssif, I, Marzadori, M, and Zucchelli, G
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Rehabilitation ,Implant dentistry ,Missing tooth ,business.industry ,Patient-centered outcomes ,medicine.medical_treatment ,Composite outcomes ,Dentistry ,030206 dentistry ,Esthetics, Dental ,Crown (dentistry) ,03 medical and health sciences ,Dental Implants, Single-Tooth ,Treatment Outcome ,0302 clinical medicine ,PATIENT-CENTERED OUTCOMES, IMPLANT INSERTION, ESTHETIC AREA ,medicine ,Humans ,Periodontics ,030212 general & internal medicine ,Implant ,business ,Single tooth implant - Abstract
Criteria for successful implants, in the rehabilitation of a single missing tooth in the esthetic area, should be determined by composite outcomes, including functional and esthetic aspects of soft tissues and the reconstruction, as well as patient-reported outcomes. This paper focuses on current methods in esthetic assessment and patient-centered/reported outcomes in single-tooth implant rehabilitation in the esthetic area. The relationship between subjective, patient-based esthetic evaluations and objective, professional-based esthetic evaluations is reviewed. In spite of increasing interest in the assessment of 'success' in implant dentistry, it is not yet possible to provide evidence-based conclusions because of the lack of consensus on a universal implant-supported crown esthetic index. There is also a need to standardize reporting of patient-centered outcomes in partially edentulous patients treated with implants.
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- 2018
50. Clinical and aesthetic outcomes of immediately placed single-tooth implants with immediate vs. delayed restoration in the anterior maxilla: A retrospective cohort study
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Saso Ivanovski and Himanshu Arora
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Adult ,Male ,Immediate Dental Implant Loading ,Time Factors ,Anterior maxilla ,medicine.medical_treatment ,0206 medical engineering ,Alveolar Bone Loss ,Dentistry ,02 engineering and technology ,Esthetics, Dental ,Osseointegration ,Group B ,Young Adult ,03 medical and health sciences ,Dental Implants, Single-Tooth ,0302 clinical medicine ,Alveolar Process ,Maxilla ,medicine ,Humans ,Dental Restoration Failure ,Tooth Socket ,Dental Restoration, Permanent ,Dental implant ,Aged ,Retrospective Studies ,Crowns ,business.industry ,Dental Implantation, Endosseous ,Soft tissue ,Retrospective cohort study ,030206 dentistry ,Middle Aged ,020601 biomedical engineering ,Dental Implantation ,Treatment Outcome ,Tooth Extraction ,Female ,Dental Prosthesis, Implant-Supported ,Implant ,Oral Surgery ,business ,Follow-Up Studies ,Single tooth implant - Abstract
Objective To evaluate the impact of the timing of restoration on clinical and aesthetic outcomes following immediate implant placement in the maxillary aesthetic zone. Material and methods Forty patients (16 males, 24 females) with a mean age of 50.55 ± 12.79 years (range 19-74) who had a single maxillary anterior tooth replaced by an immediate implant were included in this study. Twenty patients had their implant restored immediately with a provisional restoration (Group A), while the other 20 patients had a delayed restoration placed after 3-4 months of non-submerged healing (Group B). Clinical parameters and hard-tissue changes were evaluated after a mean follow-up period of 3 years. Aesthetic evaluation was carried out using the Pink Esthetic Score (PES) and the White Esthetic Score (WES). Results No significant differences were observed in the bone level changes between the two groups: 0.05 ± 0.65 mm mesially and 0.06 ± 0.52 mm distally for the immediate group and 0.30 ± 0.54 mm mesially and 0.21 ± 0.60 mm distally for the delayed group, respectively. The median PES scores were 11.5 for Group A and 10 for Group B. Mean PES and WES scores did not differ significantly between Groups A and B: PES (11.1 vs. 10.3; p = .16) and WES (8.4 vs. 7.8; p = .16). In terms of individual PES variables, the distal papillae were significantly better in Group A as compared to Group B (p = .006). Conclusions Within the limits of this study, timing of restoration seemed to positively affect the aesthetic outcomes of immediately placed implants as evidenced by higher median PES values for the immediate restoration group when compared to the delayed restoration group. Restoration timing had no impact on the individual PES variables, except for the distal papillary height which was superior in the immediate restoration group.
- Published
- 2018
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