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Aim: The aim of this study was to analyze and compare the stress distribution on dental implants in various positions when used with implant-assisted removable partial dentures., Settings and Design: This was an in vitro study., Materials and Methods: A model representing a mandibular bilateral partially edentulous condition, with missing premolars and molars, was fabricated using epoxy resin. Two implants of similar diameter measuring 4.0 mm × 10 mm (Dentium, Korea) were inserted in the second molar and the second premolar region on either side of the model for comparing the biomechanical effect of various implant locations. Two types of loads 100N and 125N were applied vertically using universal testing machines in the premolar and molar regions. The loads on the implants beneath the cast partial denture were measured by physical stress analysis using a microstrain gauge., Statistical Analysis Used: A comparison of maximum stress observed at the premolar versus molar regions due to the application of the 100N and 125N loads was done using the Mann-Whitney U-test., Results: In physical stress analysis, obtained results were statistically analyzed, and the result was statistically not significant (P = 0.435 at 100N and P = 0.718 at 125N) in positional changes of implant., Conclusion: In the current study, the statistical analysis of physical stress revealed no significant differences in stress values between the loadings at the premolar and molar regions. This suggests that the implant can be placed in either the premolar or molar region based on the availability of bone without affecting stress distribution., (Copyright © 2024 Copyright: © 2024 The Journal of Indian Prosthodontic Society.)

To assess up to date patient and doctor perceived costs of dental implant surgery among the Indian population as there is a lack of information regarding patients' awareness of dental implants. Two online questionnaire forms were sent over the internet to the Indian population and the Indian dentists and dental students regarding the knowledge, attitude and perception regarding the dental implant surgery for rehabilitation of a single missing tooth. Statistical analysis was then carried out using SPSS software version 23.0. Thirty-eight percent (P < 0.05) of the participants questioned the thought that implants require the same care as fixed prostheses, and thought it was a better option due to a major percent expecting an additional payment > 10,000 indian rupees. The expectations that patients have for an implant-supported set are high in contrast to their willingness to make additional payments. There are still misconceptions regarding costs, and these must be resolved individually in practice.

Two-stage implant systems result in gaps and cavities between implant and abutment that can act as a trap for bacteria and thus possibly cause inflammatory reactions in the peri-implant soft tissues. These gaps between the components are inevitable, and their clinical significance has so far been mostly neglected by both manufacturers and clinicians. This study is thus intended to evaluate microbial leakage at implant abutment interface in different implant systems. Four different systems, the Nobel tri-channel, the Nobel conical, the Equinox, and the Straumann, were used for this study. One microliter of a fresh broth suspension of Streptococcus mutans was added to the implant fixture (implant body). The implant was immersed in fresh heart brain infusion and was incubated at 37° for 48 hours. After incubation, 10 μL of the broth was made as lawn culture on sterile agar and the colonies were counted and recorded as colony-forming units per milliliter. Statistical tests were carried out on SPSS software and tests included analysis of variance (ANOVA) and P value was derived using Tukey's honestly significant difference post hoc test. After incubation, results were analyzed by evaluating the microbial leakage from each sample and it was observed that Nobel tri-channel had the least amount of microbial leakage and Equinox had maximum microbial leakage. The difference among all implant systems was statistically significant P < 0.05. The study concluded that least micro-leakage was found in the Nobel tri-channel whereas maximum microbial leakage was present in Equinox and Straumann.

Implants that can be used in the prosthetic rehabilitation of full and partial edentulous patients are now frequently used due to advances in dentistry. The aim of the study is to find the prevalence of implant supported fixed vs. removable prosthesis and associated quality of life evaluation. A cross-sectional, descriptive study was conducted in an institution, on randomly selected individuals. The study group consisted of adult patients who attended the outpatient Department of Prosthodontics from June 2019-March 2020. Eighty-six thousand (86,000) case sheets were evaluated and Chi-square test, independent t-test and frequency analysis were used to explore the relationship between two variables. Out of the patients, 76.5% preferred fixed prosthesis while 23.5% chose removable prosthesis. Females preferred fixed prosthesis over removable. The young-old age group had more removable prosthesis compared to the middle- and elderly age group. Patients with implant supported fixed dental prosthesis had a better quality of life compared with patients with implant supported overdentures. Esthetic and functional rehabilitation is a preferred option females generally care more about their teeth and looks so wanted more fixed options. The young-old age group preferred removable prosthesis over fixed prosthesis. Patients with implant supported fixed dental prosthesis have a better quality of life compared with patients with implant supported overdentures.

A precise implant position transfer to the working cast is particularly important to achieve an optimal fit for final restoration. Different variables affect implant-impression accuracy. Conducting a cross-sectional, descriptive study in an institution on randomly selected individuals, we compare accuracy of open-tray and closed-tray impression techniques in implants. The study group consisted of adult patients who visited the outpatient department of prosthodontics at Saveetha University from June 2019 through March 2020. We evaluate 2500 case sheets and use a χ2 test to explore the relationship between the two variables. The open-tray impression technique was used in 53.8% of cases compared to 46.2% of cases using closed-tray impression. For open-tray cases, a nonsplinted method was used by 78.2% versus 21.8% in splinted cases. An effective impression is a main requisite of an implant-supported prosthesis, because without an accurate impression, the prosthesis fails. For implant dentistry, the impression records position, depth, axis/angulation, rotation-hex position, and soft-tissue contour (emergence profile). Hence, impression technique is key for dental implant success.

A dental implant is an alloplastic material that is used to replace the tooth root. There is frequently marginal bone loss after implant placement at two months and mainly after loading. A number of factors are responsible for bone loss. One is the level of implant placement. Hence, this study aimed to evaluate the impact of placement level on marginal bone loss. A retrospective study was done in which 149 patients who had undergone 172 single-implant placements from September 1, 2019, to March 1, 2020, were included. Data from 86,000 patient records from June 2019 to March 2020 were reviewed and analyzed. The data were collected by recalling the patient and reviewing. Statistical analysis was performed using unpaired t-testing to assess the difference between bone loss in implants placed at different crestal levels. Marginal bone loss in group 1 was 2.23 ± 0.714 mm and in group 2 was 2 ± 0.00 mm. There was no statistically significant difference in bone loss between males and females. However, when placement level and bone loss were correlated, a statistically significant difference was seen.

This retrospective study aims to evaluate the association between submandibular fossa anatomy and implant length in the posterior mandibular region. The study took place from June 1, 2019 to March 1, 2020, during which 295 implants were placed in the posterior mandibular region. Data were reviewed and analyzed from 86,000 patient records that were documented at a private institution. Statistical analysis was performed to assess the association between submandibular fossa anatomy and implant length in the posterior mandibular region. Of the 295 implants, 29.2% were placed in subjects aged 36-45 yr, and 52.9% were male. Of the total population, 52.2% had type P (parallel) submandibular fossa anatomy. The 10-mm implant was the size that was most commonly used (frequency rate, 60.3%). A prevalence of submandibular fossa according to gender showed that 53.8% of males and 50.4% of females had type P (parallel buccal and lingual) plates. A statistically significant difference was found when comparing implant length to different types of submandibular fossa by gender (p < 0.05). And, when association was compared between types of submandibular fossa and implant length, a statistically significant association was found. We conclude that high risk occurs when implants are placed in the mandibular posterior region, because many complications can arise. Proper treatment planning is necessary after complete evaluation using cone-beam computed tomography.

Background: Carnitine is effective in preventing the accumulation of end products related to lipid peroxidation due to its anti-inflammatory and antioxidant effects. Carnitine also exerts a significant anti-inflammatory role through the downregulation of the nuclear factor kappa beta pathway, which leads to a decrease in the expression of pro-inflammatory cytokines.The aim of the study was to estimate the L-carnitine (L-C) levels in diabetic completely edentulous patients. Materials and Methods: A cross-sectional study was conducted after the selection of 60 samples based on the inclusion and exclusion criteria.The collected saliva samples were utilized to measure the levels of L-C using the sandwich enzyme-linked immunosorbent assay (ELISA) method. One hundred microliters of sample was applied to a particular row of wells and incubated for an hour as part of the sandwich ELISA procedure. After the wells had been cleaned, a second batch of monoclonal L-C was added, and they were once more incubated for an hour. The horseradish peroxidase substrate was then applied after washing the second batch as well. To allow the blue-to-yellow color transition, the wells were kept steady. Following the observation of the color shift, the OD was measured, and the concentration was determined using the sandwich ELISA kit's standard curve as an intercept. The data were statistically analyzed using the independent t-test (significant level P < 0.05) and were tabulated. Results: The L-C levels have higher levels in nondiabetic patients than in diabetic patients. The difference in the baseline mean value between the groups was statistically significant (P = 0.00). Although it is statistically significant (P = 0.00), the mean value for diabetic individuals is 0.19 as opposed to 0.29 for nondiabetic patients. Conclusion: Based on the findings, it can be concluded that L-C improves insulin sensitivity and glucose disposal in diabetic completely edentulous patients. [ABSTRACT FROM AUTHOR]

In a partial or entirely independent jaw, oral implantology is a technique in dentistry used to enhance the function of mastication, esthetics, and phonation. An important diagnostic aspect for the effectiveness of implant therapy is the stability of the implants. This study aims to measure dental professionals' and dental students' knowledge of resonance frequency analysis (RFA) in dental implantology. This study aims to measure dental professionals' and dental students' knowledge of RFA in dental implantology. One hundred ninety-nine dentists and dental students participated in an online survey study that was delivered through Google Forms. For statistical analysis, tabulated data from the Excel sheets were transferred into the SPSS program. The Chi-square test is also used to examine clinical relevance. According to the study's findings, 60% of the respondents were male and 46% of those who responded were dental professionals. The respondents were primarily between the ages of 18 and 22 (36%). The majority of dental undergraduates and graduates were found to be knowledgeable about the various techniques used to gauge implant stability (P = 0.04 < 0.05). Within the limitations of this study, it was found that most of the dental students and dental practitioners participating in this study were aware of implant stability. The majority of the respondents were aware that RFA was used to measure primary and secondary stability and osseointegration. [ABSTRACT FROM AUTHOR]

Distal extension cases are one of the common types of cases encountered during clinical practice. There are various treatment options available for distal extension cases, like Cast partial dentures, implants, Cantilever crowns etc. The clinician should evaluate the patient's condition and decide as to which treatment option would give the best results possible. The objective of the study is to evaluate the prevalence of different treatment options for distal extension cases. This retrospective study was carried out from the data obtained from the DIAS. A total of 96 subjects were selected, having teeth present till second premolars on both sides and undergoing treatment for missing molars on both sides. The prevalence of three different treatment options were evaluated. Group 1: Cast Partial Dentures, Group 2: Implant supported Prosthesis, Group 3: Cantilever molars, Group 4: No treatment (Shortened dental arch). It was found that in the young and middle aged population, the patients preferred implant supported prosthesis, whereas, in geriatric patients, more cast partial treatment was done. Number of implant supported prosthesis were more in female patients and the number of cast partial dentures were seen more in male patients. More number of implant supported prosthesis was seen in lower jaws than in upper jaws. Apart from short end dental arch, all other treatment protocols were done more in the lower jaw in comparison to the upper jaw. There was a significant difference in the treatments with respect to age. Mostly, the patients underwent treatment with cast partial dentures and implant supported prosthesis for distal extension cases. [ABSTRACT FROM AUTHOR]

Appropriate implant positioning is crucial to achieving long-term functional and esthetic success. Computerguided implant surgery has been developed for over two decades. This digital technology is now commonly recommended as it reduces inaccuracy in terms of implant positioning. It is a university setting study, conducted in Saveetha Dental College. Approval was obtained from the Institutional EthicalCommittee (IEC), Saveetha Dental College. Two examiners were included in the study. Questionnaires consisting of ten questions focused on the perceptions and experiences on protocols followed by dental students and practitioners on surgical guide in implant placement were distributed and filled by both the undergraduate and postgraduate students. Descriptive statistics were used to evaluate the distribution of undergraduate and postgraduate students. Chi square association was done to compare the responses between undergraduates and postgraduates and were represented in the form of bar graphs. In relation to the distribution of level of study of the study population, it was found that out of 140 students, 39% were undergraduate and 61 % were postgraduate students. In relation to association between commonly preferred guide in implant placement and level of study. Among postgraduates 37% prefered Tpd as a common guide for implant placement, followed by computer customised surgical guide(20%) and free hand technique(11%). Among undergraduates 19% prefered Tpd as a common guide for implant placement, followed by computer customised surgical guide(10%) and free hand technique(3%). In relation to association between materials commonly used in surgically guided implant placement and level of study. 37% of the postgraduates agreed PMMA as a common material used in surgically guided implant placement, followed by split graft resin(7%) and heat cure acrylic(11%) predominantly. Among undergraduates 19% agreed PMMA as a common material used in surgically guided implant placement, split graft resin(23%) and heat cure acrylic(3%). Through increased awareness of dental students' expectations and experiences, restorations can be planned, made and placed in harmony with the hard and soft oral tissues, and in harmony with the patient's expectation as well. [ABSTRACT FROM AUTHOR]

A completely edentulous patient faces many problems like difficulty in chewing, drooping corners of the mouth, unaesthetic appearance etc. Hence, it is important to restore the patient's mouth. There are a variety of treatment options for completely edentulous patients ranging from complete denture to implant supported prostheses. The aim of this study is to check the prevalence of completely edentulous patients opting for implant supported prostheses and the correlation between types of prosthesis and various parameters. The subjects for this retrospective study were selected from June 2019 to May 2020. The prostheses were divided into four groups: Group 1: Complete denture treatment, Group 2: FP1 prosthesis, Group 3: Hybrid denture and Group 4: Implant supported overdenture. Frequencies of the prostheses were checked and Chi-square test was used to check the association of the treatment options with age and gender. It was observed that complete denture had the maximum prevalence, followed by an equal prevalence of FP1 prosthesis and hybrid denture and the least prevalence was of implant supported prosthesis. When the association was checked with types of prosthesis and age, it was observed that complete denture was mostly seen in elderly patients, whereas implant supported fixed prosthesis was mostly seen in middle aged patients. When the association was checked with types of prosthesis and gender, it was observed that complete denture was mostly seen in males, whereas implant supported fixed prosthesis had equal prevalence. It can be concluded that very few patients opted for implant supported prostheses with further studies required. [ABSTRACT FROM AUTHOR]