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Objectives: The aim of this study was to estimate the prevalence and severity of external root resorption (RR) caused by retained third molars (M3), to compare the sensitivity of panoramic radiography (PAN) and cone beam computed tomography (CBCT) and to determine predictive factors for root resorption. Materials and methods: In a retrospective cross-sectional analysis, we included patients (N = 367) who underwent PAN and CBCT imaging between December 2017 and July 2019. Previous orthodontic treatment, age, gender, superimposition of second molars (M2) and M3 on PAN, retention depth, inclination angle and vertical level of contact with the M2 were used as predictor variables. The outcome variable was RR of the M2, graded according to Ericson et al. [1]. Subgroup analyses compared patients with and without suspected resorption in the PAN. Results: While less than 5% of PANs suggested RR associated with M3, CBCT showed RR in 20% of all M2 with adjacent retained M3. The angle of inclination of M3, patient age and vertical level of molar contact emerged as predictive parameters, with mesial inclination, older age and deeper retention associated with increased severity of M2. Conclusion: Within the limitations of our study, these data confirm the poor performance of PAN in the diagnosis of RR. CBCT may be helpful in detecting RR in mesioangulated and deeply retained M3 in elderly patients, even when PAN did not suggest pathology. Clinical relevance: Our study may help to decide whether CBCT should be considered prior to M3 surgery. [ABSTRACT FROM AUTHOR]

Objective: The aim is to detect impacted teeth in panoramic radiology by refining the pretrained MedSAM model. Study design: Impacted teeth are dental issues that can cause complications and are diagnosed via radiographs. We modified SAM model for individual tooth segmentation using 1016 X-ray images. The dataset was split into training, validation, and testing sets, with a ratio of 16:3:1. We enhanced the SAM model to automatically detect impacted teeth by focusing on the tooth's center for more accurate results. Results: With 200 epochs, batch size equals to 1, and a learning rate of 0.001, random images trained the model. Results on the test set showcased performance up to an accuracy of 86.73%, F1-score of 0.5350, and IoU of 0.3652 on SAM-related models. Conclusion: This study fine-tunes MedSAM for impacted tooth segmentation in X-ray images, aiding dental diagnoses. Further improvements on model accuracy and selection are essential for enhancing dental practitioners' diagnostic capabilities. [ABSTRACT FROM AUTHOR]

Background: This study investigated the predictive value of orthopantomography (OPG) for the difficulty of extracting impacted mandibular third molars, in comparison with cone-beam computed tomography (CBCT). Methods: In this descriptive quantitative investigation, two oral and maxillofacial radiologists evaluated OPG and three-dimensional CBCT images according to the Pell-Gregory and Winter classifications. The results for the classification were compared using the chi-square test, and the prediction of difficulty was assessed using the Pederson scale, with a significance level of p< 0.05. Results: The study included 30 patients (14 men and 16 women), providing a total of 53 samples of impacted mandibular third molars. Of these, 30 (56.6%) were from the right side and 23 (43.4%) from the left. There was a statistically significant difference between the OPG and CBCT images concerning their relation to the mandibular ramus (p< 0.05). However, evaluations based on occlusal lines and angulation showed no significant differences (p> 0.05). According to the Pederson scale, significant differences were observed between OPG and CBCT in predicting extraction difficulty (p< 0.05). Conclusion: CBCT offered a more accurate assessment of the surgical difficulty associated with mandibular third molars than OPG. OPG views frequently failed to adequately visualize the region of the mandibular ramus, influencing the perceived difficulty of mandibular third molar surgery. In certain cases, the use of CBCT imaging is crucial. [ABSTRACT FROM AUTHOR]

Introduction: Since mandibular third molars are frequently impacted, third molar extractions are among the most common procedures performed by oral surgeons (35.9–58.7% of all surgical procedures). Inferior alveolar nerve (IAN) injury is major postoperative complication in 0.81–22% of the cases leading to a permanent injury in 1–4% of the cases. Prior studies have proven that coronectomy, a procedure that involves the removal of the crown and coronal one-third of the roots of the third molar with intentional retention of the two-third apical roots to protect the IAN, can thus prove to be a viable alternative in such cases of close proximity to the IAN. Aim: This study was conducted in India to determine the knowledge, attitudes, and practices of oral and maxillofacial surgeons regarding coronectomy and its role in the prevention of IAN injury. Methodology: The questionnaire entitled: "Coronectomy: A Knowledge, Attitude and Practice (KAP) Survey among Oral and Maxillofacial Surgeons" was sent to 120 oral and maxillofacial surgeons. Five questions in each domain, i.e., knowledge, attitude, and practice were designed to know the level of awareness, acceptance, and current status of the performance of coronectomy among oral and maxillofacial surgeons (OMFS). Teeth with acute infection and mobile teeth were excluded from the consideration of coronectomy procedures. Results: Out of the 120 questionnaires sent, 50 responses were obtained, thus producing a response rate of 41.6%. The male-to-female ratio in the study was 34:16. 52% of the surgeons had performed up to 5 coronectomies during their entire practice, while 16 % had never even attempted the procedure. Only 42% of the respondents preferred coronectomy, but most of the surgeons were in support of practice-oriented continuing. [ABSTRACT FROM AUTHOR]

Background: Odontogenic keratocyst (OKC) is considered an odontogenic cyst, with the unique clinical characteristics of this entity being local destruction, aggressive behavior, a high recurrence rate, specific histopathologic features, and the tendency for multiple lesions when associated with syndromes. Odontogenic keratocyst accounts for 12–14% of all cysts in the jaws. Purpose: The aim of this case report is to present an unusual odontogenic keratocyst associated with impacted maxillary central incisor, case management of anterior maxilla odontogenic keratocyst involving an adjacent tooth, and its postoperative six-month follow-up. Case: A 13-year-old female patient was referred to the Universitas Airlangga Hospital with a complaint that her upper front teeth had not erupted. The parents revealed that the patient had suffered trauma from falling down the stairs at the age of four, i.e., eight years ago. Case Management: The cyst was enucleated together with the associated permanent upper right central incisor, retained deciduous upper right central incisor, the permanent upper right lateral incisor, and upper right canine. Post surgical treatment, the patient used a partial denture to increase her self-confidence. Conclusion: Enucleation of the cyst with extraction of the permanent teeth should be performed to avoid recurrence of the OKC. Periodic radiographic evaluation is required with long-term follow-up.

Abstract The prevalence of teeth impaction varies substantially between different populations, and the impaction of third molars is the most commonly recorded. This study aimed to explore the prevalence and pattern of the third molars impactions among Yemeni population. This was a retrospective radiographic study conducted in Yemen between 2022 and 2023. The digital panoramic radiographs were collected from two major X-ray centers in Yemen. The angular position and depth of the impacted third molars were assessed according to the classifications of Winter and of Pell and Gregory, respectively. All radiographs were evaluated twice by one investigator in a two-week interval, and Kappa test was used for intra-rater reliability. Gender-wise differences, differences between both sides, and differences between maxilla and mandible were analyzed using Chi-squared tes with odds ratio (OR) for the risk of impaction. A P-value

Sultan Abdulrahman Almalki,1,&ast; Inderjit Murugendrappa Gowdar,1,&ast; Faisal Omar Arishi,2 Rakan Khaled Alhumaidani,2 Faisal Khaled Alhumaidani,2 Khalid Gufran1 1Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia; 2College of Dentistry, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia&ast;These authors contributed equally to this workCorrespondence: Khalid Gufran, Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia, Tel +00966502294308, Email k.syed@psau.edu.saBackground: Whether there is a relationship between blood group and the likelihood of acquiring oral diseases. Therefore, the present study investigated the potential association between ABO blood groups and various dental conditions, including dental caries, gingivitis, malocclusion, and impacted teeth, in Saudi adults aged 18 years and older.Methods: A cross-sectional study was conducted on 300 participants who met the inclusion criteria. Data collection included assessment of dental caries status using the decayed missing filled teeth (DMFT) and decayed missing filled surfaces (DMFS) indices, evaluation of gingivitis using the Gingival Index, classification of malocclusion according to Angle’s classification system, and recording the presence or absence of impacted teeth.Results: The AB blood group had the significantly highest mean DMFS score (8.58± 6.63), while the O blood group had the lowest mean DMFS score (6.37± 4.43). Additionally, blood group O showed a slightly higher prevalence of gingivitis (51.92%) than the other blood groups. Blood group A demonstrated a higher prevalence of both Class II (34.2%) and Class III (19%) malocclusions, with statistically significant differences. Regarding impacted teeth, blood group AB (48.8%) had the highest occurrence.Conclusion: There exists an association between oral disease and ABO blood group in Saudi adults. The results of this study indicate that individuals with specific blood types may be more prone to oral diseases, which can aid in the early diagnosis and prevention of these conditions.Keywords: ABO blood groups, dental caries, gingivitis, malocclusion, impacted teeth

Abstract Background There is a general consensus among dental professionals regarding the extraction of impacted third molars in the presence of clinical symptoms. However, there is less agreement on the management of asymptomatic third molars. The objective of this study is to compare the perspectives of oral surgeons and orthodontists regarding the indications for the extraction of asymptomatic third molars. It is possible that healthcare professionals from different specialties may approach the extraction of these teeth in different ways. Methods In this cross-sectional study, a web-based questionnaire has been employed to collect data by inquiring about the reasons why participants prefer the extraction of asymptomatic third molars. Descriptive statistics were employed to evaluate the data obtained. The level of significance was set at P

The prevalence of teeth impaction varies substantially between different populations, and the impaction of third molars is the most commonly recorded. This study aimed to explore the prevalence and pattern of the third molars impactions among Yemeni population. This was a retrospective radiographic study conducted in Yemen between 2022 and 2023. The digital panoramic radiographs were collected from two major X-ray centers in Yemen. The angular position and depth of the impacted third molars were assessed according to the classifications of Winter and of Pell and Gregory, respectively. All radiographs were evaluated twice by one investigator in a two-week interval, and Kappa test was used for intra-rater reliability. Gender-wise differences, differences between both sides, and differences between maxilla and mandible were analyzed using Chi-squared tes with odds ratio (OR) for the risk of impaction. A P-value < 0.05 was considered significant. Panoramic radiographs of 6338 individuals were included. Their mean age was 35.1 ± 13.3 years andand 63.9% were females. A total of 25,352 sites (quadrants) were screened for the presence of thirds molars. Among which, 14,003 third molars (55.3%) were present in one or more sites. There were 1440 individuals (23%) with a total of 2828 impacted third molars (20% of the existing third molars). Females were less likely to have third molar impaction (OR = 0.46, CI95% = 0.4–0.52). Impaction of the mandibular third molars was significantly more frequent than the maxillary ones (OR = 1.15, CI95% = 1.04–1.26; P = 0.005). Horizontal and mesioangular impactions were statistically more frequent in the lower molars compared to the upper ones (P < 0.001 each). Contrastingly, vertical (P = 0.015), distoangular, and other impactions (P < 0.001 each)were statistically more frequent in the maxilla. Levels A and B were more frequent in the lower third molars, while level C was predominating in the upper molars (P < 0.001 each). The prevalence of third molars impaction is more frequent in males and mandibular arch. The angulation and level of impaction seem to be more complicated in the maxillary arch. [ABSTRACT FROM AUTHOR]

Background: There is a general consensus among dental professionals regarding the extraction of impacted third molars in the presence of clinical symptoms. However, there is less agreement on the management of asymptomatic third molars. The objective of this study is to compare the perspectives of oral surgeons and orthodontists regarding the indications for the extraction of asymptomatic third molars. It is possible that healthcare professionals from different specialties may approach the extraction of these teeth in different ways. Methods: In this cross-sectional study, a web-based questionnaire has been employed to collect data by inquiring about the reasons why participants prefer the extraction of asymptomatic third molars. Descriptive statistics were employed to evaluate the data obtained. The level of significance was set at P < 0.05. Results: Prophylactic extraction of partially impacted molars was more favored among the participants (P < 0.05). The orthodontists preferred prophylactic extraction due to the risk of late anterior dental crowding (LADC); however, the oral surgeons preferred pre-pregnancy extractions (P < 0.05). The extraction decision for partial impaction was higher in females when the risk of distal caries was considered. For fully impacted ones, it was higher in males when the risk of caries and pericoronitis were considered (P < 0.05). Conclusions: Orthodontists preferred extraction because of the risk of LADC and caries, while oral surgeons focused on preventing pericoronitis, pathology, focal infection, and symptoms during pregnancy. This divergence between the participants may inform the guidelines for prophylactic management of third molars. These findings may be pertinent in gender medicine. Clinical relevance: This study has been enlightening for departments to consult each other before the extraction of a patient's asymptomatic third molar. [ABSTRACT FROM AUTHOR]

Background. Hypodontia is a common dental anomaly that concerns mostly the permanent dentition. Tooth absence can be observed in the frontal or lateral area of dental arch, in general being considered an evolutionary adaptation to the smaller sizes of the jaws. Environmental, genetic and epigenetic factors were mentioned as causes for hypodontia. Associations between hypodontia and tooth size and shape are a controversial issue among different authors. There are regional variations in the number of missing teeth. The severity of the disease is dependent on the number of absent teeth. Aims. The study aims to analyze the general particularities of hypodontia, the causes, the signs and symptoms, the methods used for diagnostic and treatment options in order to optimize the management of this dental disorder. Methods. Literature research was performed in PubMed based on specific keywords and the relevant articles were selected and then analyzed. Results. Prevalence of tooth absence, clinical situation and associations to other conditions and symptoms were evaluated by different authors. Hypodontia was reported both in the primary and secondary teeth. Prevalence among females was found higher than in males. Certain teeth are absent more frequent in women, others in men. The last molars, lateral incisors and second premolars are the most reported missing teeth. Conclusions. Early diagnostic and treatment can enhance the chances of a successful treatment in cases of congenitally tooth absence. It is essential that dental care practitioners inform patients and their families that management of this condition may require multi- and inter-disciplinary input. [ABSTRACT FROM AUTHOR]

Background. Supernumerary teeth can be found both in the temporary and permanent dentitions, in different regions of the arch (mesiodens, lateral incisors, premolars, molars) or in the maxillary jaws (impacted teeth). Their shape can vary (can be normal or dysmorphic), as well as their direction and orientation. Different etiological factors and theories were analyzed in the study, as well as the main symptoms. Esthetic and functional disturbances (phonation, self maintenance, mastication – occlusal problems, interferences and premature contacts) can occur. Muscle and TMJ complications are possible as a result of the occlusal dysfunction. Aims. The aim of the study is to analyze the characteristics and treatment management of supernumerary teeth. Methods. Literature research on the latest articles on the topic was performed, using keywords. Two case reports of patients with mesiodens are presented. Results. Prevalence of supernumerary teeth, as well as topography, clinical manifestations and complications, diagnostic and treatment possibilities were presented. Conclusions. Early diagnosis, correct management and treatment planning can play a keyrole in the rehabilitation of the patients with supernumerary teeth. [ABSTRACT FROM AUTHOR]

Objectives: This cross-sectional study aimed to measure the distance between the buccal and lingual cortical bones and its relation with the mandibular canal roof of third molars classified as III-C position according to Winter, Pell and Gregory classifications in cone-beam computed tomography. Material and Methods: A total of 140 lower third molars were classified according to Winter, Pell and Gregory. The distance between the buccal external cortex and the lingual external cortex was measured at 25%, 50% and 75% of the distance to the roof of the mandibular canal in parasagittal sections of teeth classified in horizontal III-C position. The presence or absence of lesions associated with the elements in this position was observed. Descriptive statistical analysis was performed and the intraexaminer agreement was calculated using the Bland-Altman and t-test methods (0.88 and 0.91, respectively). The significance level used was 5% (P = 0.05). Results: Seventy patients (29.4 [SD 8.8] years, 54% women and 46% men) were included. Fourteen (10%) third molars were classified in horizontal III-C position. The average measurements taken were 1.78, 1.1 and 1.53 mm for the distances between the buccal external cortex and lingual external cortex, at 25%, 50% and 75% of the distance to the roof of the mandibular canal, respectively. No pathological conditions associated with the included elements were observed. Conclusions: Analysis of cone-beam computed tomography parasagittal sections of third molars classified in horizontal III-C position, revealed proximity of impacted teeth to the mandibular canal roof, mainly in the midline between the buccal and lingual external cortices. [ABSTRACT FROM AUTHOR]

ObjectivesThis systematic review aimed to assess the effectiveness of submucosal tramadol injections in post-operative pain management following third molar surgical extraction.Materials and methodsDatabases, such as PubMed, Scopus, ScienceDirect, and Cochrane Library, were systematically searched using relevant keywords. Randomized clinical trials that met the inclusion criteria were assessed to determine the effectiveness of tramadol in managing acute post-operative pain following third molar surgery.ResultsIn total, seven studies with participants of 18 and over following randomized placebo-controlled trials were considered for the analysis. A submucosal injection of 2 ml (50–100 mg) of tramadol adjacent to the impacted mandibular third molar effectively controlled pain for up to 6–24 h following surgery. Non-serious adverse events, such as nausea, vomiting, and headache, were reported in two studies. Meta-analysis (subgroup analysis) revealed heterogeneity among the studies, demonstrating variability in the results across the included studies. In addition, tramadol demonstrated a significant decrease in post-operative pain.ConclusionSubmucosal tramadol is an efficient, safe, and dependable method for reducing post-operative acute pain, particularly in the first 6 h following impacted third molar surgery. However, due to the observed heterogeneity in the research, there is need for cautious interpretation of the findings and potential limitations in the evidence base. To enhance the quality of evidence on this topic, we strongly recommend conducting new RCTs using established methodologies.Clinical relevancePost operative pain following third molar surgeries is one of the common complications. Submucosal tramadol injections were found to be successful in reducing post extraction pain as well as other morbidities.

Abstract Background A pulp stone is a calcified mass that develops in the dental pulp of any tooth. Despite many studies examining the relationship between pulp stone formation and non-oral factors, the methods used in these studies have been unable to explain the exact role of these factors alone as distinct from probable effects within the oral cavity environment. Considering that totally unerupted (impacted or developing) teeth are unexposed to the oral cavity’s environmental and functional conditions, they provide a more suitable material for studying the effects of these non-oral factors on pulp stone formation. This research study aimed to investigate pulp stones in unerupted teeth and the associated factors in a Saudi subpopulation. Methods The study included 644 cone-beam computed tomography images, with 496 (50.9%) maxillary and 479 (49.1%) mandibular teeth. Of the investigated patients, 293 (45.5%) were men, and 351 (54.5%) were women. The age range was 15–76 years. A chi-square test was used to investigate the associations between pulp stones and age, gender, and history of systemic disease and chronic medication use. Results Pulp stones in unerupted teeth were present in 24.2% of the examined dental jaws and 18.6% of the examined teeth. There was no statistically significant relationship between pulp stones and gender (p > 0.05). A significantly greater percentage of pulp stones were found with increasing age (p = 0.000). Additionally, a significantly increased number of pulp stones was observed in patients with systemic diseases and chronic medications (p

Objective To discuss the possible etiology, pathogenesis, clinical features, diagnosis and treatment of epidermoid cysts of the jaw and to provide a reference for clinical diagnosis and treatment. Methods A case of an epidermoid cyst in the right mandible with retained deciduous teeth and succedaneous impacted teeth was reviewed and analyzed in combination with the relevant literature. Results A patient presented with a mass in the right mandible that had persisted for 1 month after being found at imaging examination. Tooth 83 was retained, and tooth 43 was unerupted. Swelling was characterized by no obvious tenderness, fluctuation, or table tennis sensation and was observed in the lingual alveoli of teeth 83, 44, and 45. Imaging revealed a low-density shadow in the apex of teeth 83, 44, 45, and 46, approximately 1.9 cm × 2.6 cm × 1.6 cm in size, which wrapped around the dental crown of tooth 43. Preliminary diagnoses were as follows: right mandibular mass thought to be a dentigerous cyst; impacted tooth 43; and retained primary tooth 83. The mass in the right mandible was removed, and teeth 43 and 83 were extracted under intravenous and inhalation anesthesia. During the operation, the mass was observed to have a thin cyst wall and contained bean-like residue. Histopathological examination indicated an epidermoid cyst in the right mandible. At the 1-week follow-up examination, the patient reported no discomfort, and the surgical area showed good recovery. According to the literature, epidermoid cysts are benign cysts originating from ectopic ectodermal tissue that can occur throughout the body but rarely in the oral cavity and are even extremely rarer in the jaw. Epidermoid cysts of the jaw, which have no specific clinical manifestations, can be confused with odontogenic cysts such as dentigerous cysts and odontogenic tumors. Dental pulp tests and other techniques can serve as a reference for clinicians. The diagnosis is confirmed via histopathology. Surgical removal is a common treatment, with a good prognosis and a low recurrence rate. Conclusion The principle of treatment for an epidermoid cyst of the jaw is similar to that for a jaw cyst. The prognosis is good when the cyst is removed completely.

Objective To study the effect of orthodontic traction on the roots and periodontal soft and hard tissues of buried obstructed upper incisors. Methods This study was reviewed and approved by the ethics committee, and informed consent was obtained from the patients. From January 2018 to December 2022, 40 patients who underwent orthodontic traction on impacted upper incisors were selected; those whose contralateral homonymous apical foramen was not developed were placed in group A (23 cases), and those whose contralateral homonymous apical foramen was developed were placed in group B (17 cases). Software was used to measure the root length of the impacted upper incisors in groups A and B on cone beam CT (CBCT) images before and after traction and compare the changes in alveolar bone (alveolar bone width, labral bone plate thickness, and horizontal height of alveolar bone) and keratinized gingival width between each impacted upper incisor and the corresponding contralateral tooth immediately and one year after traction. Results The root length of the impacted upper incisors increased after traction compared to before traction (PP>0.05), whereas the width of the alveolar bone at the completion of traction in group B did not reach that of the contralateral homonymous tooth, with a significant difference in width (PPPP

Background: A pulp stone is a calcified mass that develops in the dental pulp of any tooth. Despite many studies examining the relationship between pulp stone formation and non-oral factors, the methods used in these studies have been unable to explain the exact role of these factors alone as distinct from probable effects within the oral cavity environment. Considering that totally unerupted (impacted or developing) teeth are unexposed to the oral cavity's environmental and functional conditions, they provide a more suitable material for studying the effects of these non-oral factors on pulp stone formation. This research study aimed to investigate pulp stones in unerupted teeth and the associated factors in a Saudi subpopulation. Methods: The study included 644 cone-beam computed tomography images, with 496 (50.9%) maxillary and 479 (49.1%) mandibular teeth. Of the investigated patients, 293 (45.5%) were men, and 351 (54.5%) were women. The age range was 15–76 years. A chi-square test was used to investigate the associations between pulp stones and age, gender, and history of systemic disease and chronic medication use. Results: Pulp stones in unerupted teeth were present in 24.2% of the examined dental jaws and 18.6% of the examined teeth. There was no statistically significant relationship between pulp stones and gender (p > 0.05). A significantly greater percentage of pulp stones were found with increasing age (p = 0.000). Additionally, a significantly increased number of pulp stones was observed in patients with systemic diseases and chronic medications (p < 0.05). Conclusions: The results support the idea that pulp stones can be present in any type of unerupted tooth. This study provides additional evidence of the increased incidence of pulp stones with age, systemic disease, and chronic medications. [ABSTRACT FROM AUTHOR]

Objective: With the increasing maturity of 3D printing technology, the application of digital guide template in the extraction of impacted teeth has become more sophisticated. However, for maxillary palatal deeply impacted teeth, there still exist significant clinical challenges. This experiment introduces a novel digital guide template and innovatively employs a flapless technique to explore a minimally invasive approach for the extraction of palatal deeply impacted teeth. Methods: This experiment included 40 patients diagnosed with palatal completely impacted teeth, randomly divided into an experimental group and a control group. The experimental group used the new digital guide template for flapless extraction, while the control group employed the traditional freehand flap technique. Results: The experimental group can significantly reduce the localization time of palatally impacted teeth (P < 0.001), with total surgery times of 18.15 ± 4.88 min and 22.00 ± 7.71 min for the experimental and control groups, respectively (P = 0.067). Although there were no significant statistical differences between the two groups in terms of intraoperative bleeding, adjacent tooth damage, infection, or damage to nearby important anatomical structures, the experimental group showed significant improvements in postoperative pain (P < 0.05), swelling (P < 0.001), and patient satisfaction (P < 0.001) compared to the control group. Conclusion: Compared to traditional freehand flap surgery, flapless extraction of palatally impacted teeth guided by digital templates significantly reduces the localization time of impacted teeth and demonstrates notable advantages in some postoperative complications. Future studies with larger sample sizes are needed to substantiate the feasibility of this technique. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Prevention & Treatment For Stomatological Diseases is the property of Journal of Prevention & Treatment For Stomatological Diseases Editorial Office 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.)

Background: The impaction of the maxillary canine is a common occurrence, and orthodontists must be prepared to manage it. The purpose of this article is to present a study of the efficacy of a double-wire orthodontic appliance compared to a control group in the alignment of impacted maxillary canines in the dental arch. Methods: To diagnose an impacted maxillary canine, a panoramic radiograph was taken and a detailed analysis was performed by the same orthodontist. This article presents the results of 28 impacted maxillary canines with inclusion criteria of A2 (tooth angulation to the midline 16°–45°), V1 (vertical height of the tooth crown above the cementoenamel junction but less than half the length of the root of the maxillary lateral incisor), and O3 (medial position of the canine crown of more than half but less than the entire root width of the lateral incisor) positions in 21 patients (7 males and 14 females) with a mean age of 14.02 years (SD = 1.61) who were treated by the same orthodontist for impacted maxillary canines using a fixed double-wire orthodontic appliance. The analyzed data were compared with the control group (treated with a fixed orthodontic appliance and active ligature), which was matched for pretreatment age and the A2, V1, and O3 positions of the impacted maxillary canine. Results: With both methods, the impacted maxillary canines were aligned and guided into a correct position in the dental arch, but the mean active orthodontic traction of 31 ± 4.2 weeks in the SG was statistically significantly shorter (p < 0.05) in comparison to 37 ± 6.3 weeks in the CG, and the number of visits was statistically significantly (p < 0.05) fewer in the SG (5 ± 2) than in the CG (11 ± 5). Conclusions: The findings of this study are important to the field of orthodontics and show that the alignment of impacted maxillary canines with A2, V1, and O3 positions can be achieved with both methods, but with the double-wire appliance, the treatment time was shorter and the number of visits was statistically significantly fewer. The results of this study suggest that this approach may be more efficient and cost-effective compared to conventional methods. [ABSTRACT FROM AUTHOR]

Key Clinical Message: Gardner's syndrome with the complete manifestation of colonic and extracolonic features is uncommon. Therefore, every clinician should view extracolonic features with a high index of suspicion. This may be key to early diagnosis, definitive management in these patients and importantly, helps prevent malignant transformation of existing colonic polyps. [ABSTRACT FROM AUTHOR]

Panoramic radiography imaging plays a crucial role in the diagnostic process of dental diseases. However, current artificial intelligence research datasets for panoramic radiography dental image processing are often limited to single-center and single-task scenarios, making it difficult to generalize their results. To address this, we present a multi-center, multi-task labeled dataset. In this study, our dataset comprises three datasets obtained from different hospitals. The first set has 4940 panoramic radiography images and corresponding labels from the Stemmatological Hospital of the General Hospital of Ningxia Medical University. The second set includes 716 panoramic radiography images and labels from the People's Hospital of Yinchuan City, Ningxia. The third dataset contains 880 panoramic radiography images and labels from a hospital in Shenzhen, Guangdong Province. This comprehensive dataset encompasses three types of dental diseases: impacted teeth, periodontitis, and dental caries. Specifically, it comprises 2555 images related to impacted teeth, 2735 images related to periodontitis, and 1246 images related to dental caries. In order to evaluate the performance of the dataset, we conducted benchmark tests for segmentation and classification tasks on our dataset. The results show that the presented dataset could be effectively used for benchmarking segmentation and classification tasks critical to the diagnosis of dental diseases. To request our multi-center dataset, please visit the address: https://github.com/qinxin99/qinxini. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Prevention & Treatment For Stomatological Diseases is the property of Journal of Prevention & Treatment For Stomatological Diseases Editorial Office 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.)

Objectives: This cross-sectional study aimed to measure the distance between the buccal and lingual cortical bones and its relation with the mandibular canal roof of third molars classified as III-C position according to Winter, Pell and Gregory classifications in cone-beam computed tomography. Material and Methods: A total of 140 lower third molars were classified according to Winter, Pell and Gregory. The distance between the buccal external cortex and the lingual external cortex was measured at 25%, 50% and 75% of the distance to the roof of the mandibular canal in parasagittal sections of teeth classified in horizontal III-C position. The presence or absence of lesions associated with the elements in this position was observed. Descriptive statistical analysis was performed and the intra-examiner agreement was calculated using the Bland-Altman and t-test methods (0.88 and 0.91, respectively). The significance level used was 5% (P ≤ 0.05). Results: Seventy patients (29.4 [SD 8.8] years, 54% women and 46% men) were included. Fourteen (10%) third molars were classified in horizontal III-C position. The average measurements taken were 1.78, 1.1 and 1.53 mm for the distances between the buccal external cortex and lingual external cortex, at 25%, 50% and 75% of the distance to the roof of the mandibular canal, respectively. No pathological conditions associated with the included elements were observed. Conclusions: Analysis of cone-beam computed tomography parasagittal sections of third molars classified in horizontal III-C position, revealed proximity of impacted teeth to the mandibular canal roof, mainly in the midline between the buccal and lingual external cortices.

Objective: This study investigated the clinical effects and applicability of minimally invasive impacted teeth extraction using digital robots. Methods: A marker was bonded to the non-surgical area before surgery. A Cone-Beam Computed Tomography (CBCT) scan was obtained and uploaded to the robot software to determine the drilling position of the ring drill. During the surgery, the robot arm automatically navigated to a predetermined position, and the ring drill removed part of the bone tissue and exposed and extracted the impacted teeth. Finally, the surgeon tightly sutured the wounds to the surgical area. Results: Three minimally invasive extractions of impacted teeth with robotic assistance were performed without complications. The surgical area showed good healing during the one-month follow-up examination. Conclusions: Digital robot-assisted minimally invasive extraction of impacted teeth is a highly feasible clinical procedure as it minimises trauma to the surgical area and protects the surrounding blood vessels and nerve bundles, making it a safe and valuable technique with significant potential for clinical application.

Abstract Background Entirely impacted mandibular third molar (EIM3M) concerns the pathological external root resorption (ERR) of the adjacent mandibular second molar (M2M) and formation of granulation tissue between two molars. The study aimed to clarify the effect of αENaC, a mechano-sensitive molecule, to explore the mechanical mechanism in this scenario. Methods The force EIM3M exerted on M2M was proved by finite element analysis. αENaC expressions were tested by real-time polymerase chain reaction (PCR), immunoblotting and immunofluorescence. Inflammatory and epithelial-mesenchymal transition (EMT)-related molecules expressions were also detected by real-time PCR. The correlation was analyzed by Spearman’s correlation analysis, and receiver-operator characteristic (ROC) curve was further exhibited. Results The force was concentrated in the ERR area. αENaC was upregulated, positively correlated with ERR degree and localized to the fibroblasts in ERR granulation tissues. Moreover, αENaC was respectively and positively associated with elevated TNF-α and N-cadherin in ERR granulation tissues. More importantly, ROC analysis verified αENaC as a novel indication of the incidence of this disease. Conclusions Our finding revealed the force from EIM3M causing ERR of M2M, and elucidated the expression and localization of αENaC and its positive correlation with inflammation, EMT and disease severity, suggesting a novel indication in this disease.

Pericoronitis is an intraoral soft tissue infection most commonly associated with impacted teeth. The most frequently impacted teeth are lower third molars. Definitive treatment of the disease usually involves removing the affected tooth. Pericoronitis can be exacerbated by local and systemic conditions. This publication describes pericoronitis, its aetiology, clinical manifestation and treatment options.

Copyright of Orthodontie Française is the property of John Libbey Eurotext Ltd. 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.)

Copyright of Fogorvosi Szemle is the property of Hungarian Dental Association 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.)

Background: The early detection of impacted teeth is essential for the prevention of future malocclusions and possible lesions. The aim of this study is to assess the prevalence of impacted teeth and associated pathological lesions. Methods: One thousand six hundred and two panoramic radiographs were analyzed for this retrospective study. The prevalence of impacted teeth, the presence of supernumerary teeth and cystic or tumoral lesions associated, and the type of angulation of third molars using Winter's classification were accessed. The descriptive statistics and the Chi-squared test were performed (P < 0.05). Results: One thousand three hundred and ninety-seven panoramic radiographs fulfilled impacted criteria. A prevalence of 541 (38.7%) impacted teeth was observed, with the female gender significantly higher (P < 000.1). Of the total impacted teeth (n = 541), the overall mean impacted of lower third molars was 55.6%. Twenty-nine (5.3%) supernumerary teeth and four lesions were verified. The angulations most observed in the upper (76.6%) and lower (39.2%) third molars were vertical (P < 000.1) and mesioangulated (P < 000.1), respectively. Conclusion: The impacted tooth prevalence was 38.7%, more common in females than in males. The lower third molars presented the highest prevalence of impacted, and the most common angulations were vertical and mesioangulated. Only four associated lesions were observed. [ABSTRACT FROM AUTHOR]

Background: The study aims to investigate parameters in patients attending Fujairah Dental Center, including assessing the prevalence of impacted teeth, determining the frequency of associated pathological conditions, and evaluating the patterns and angulations of impacted third molars. Methods: It is a retrospective descriptive study of the panoramic radiographs of patients who attended Fujairah Dental Center for dental care between January 2011 and December 2017. The minimum age for inclusion was 17 years. Clinical records were used to obtain the demographic details of patients, such as age, gender, nationality, medical history, and smoking history. Seven hundred and four panoramic radiographs and clinical records of patients were analyzed. The age range was between 17 and 112 years old, with a mean age of 34 years (S.D 13.5). Results: Of the 704 panoramic radiographs evaluated, 236 (33.6%) X-rays showed teeth impaction with a total of 562 impacted teeth in the upper and lower jaws. Five hundred and twenty-five (93.4%) were impacted third molars, and 37 (6.5%) teeth were other kinds of impacted teeth. Females showed a higher frequency of impacted teeth (62.6%) compared to males (37.4%). The highest prevalence of impacted teeth was found in the 17–25 year age group (61%), and the prevalence declined with advancing age. Impacted third molars were more likely to occur in the mandible (57.3%) than in the maxilla (42.7%). Most of the impacted third molars were in the mesioangular position, followed by the vertical position. The evaluation of the depth of impacted third molars demonstrated that level C impaction was the most frequently seen, followed by level B impaction. Impacted third-molar teeth often presented with two roots (60.7%), followed by a single root (31.3%). An evaluation of the relationship between lower third molars and the inferior dental canal (IDC) revealed that the most frequently observed relation was interrupted (61.5%), followed by a distant relation to the ID canal, and 13% were superimposed. The most common morphological pattern of roots of the impacted third molars was either straight-type or curved and dilacerated roots (5.7%). Additionally, the most noticed pathological conditions associated with impacted teeth were carious second molars adjacent to impacted third molars (42%), which was more likely to be seen in the 17–25-year age group, with females having a higher prevalence than males. [ABSTRACT FROM AUTHOR]

The aim of this study is to evaluate the effects of orthodontic traction, by means of light and controlled forces, on root length in impacted maxillary canines and physiologically erupted maxillary canines. Disinclusion of impacted maxillary canines is a frequent procedure in orthodontics due to their higher incidence of impaction. The effects of orthodontic traction, by means of light and controlled forces, can lead to a resorption of the root length in impacted and physiologically erupted teeth. Therefore, apical root resorption is a common phenomenon that must be taken into consideration. Apical root resorption measurements were taken using pre-treatment CBCTs and pre-treatment and post-treatment digital panoramic radiographs of 52 patients who underwent fixed-appliance treatment by using light and controlled orthodontic forces. The experimental group consisted of 26 patients with one impacted maxillary canine. The control group consisted of 26 patients without any impaction. Apical root resorption was calculated from root lengths before and after orthodontic treatment. In the experimental group, impacted canines with incomplete apical formation underwent root elongation, while impacted canines with completed root formation went through apical root resorption. The latter showed a slightly greater apical root resorption (0.2 mm) compared to the control group (95% confidence interval; p = 0.04). The extent of root resorption of impacted canines was significantly higher than that of physiologically erupted ones. However, this differential resorption did not compromise the structural and functional integrity of the involved teeth. The orthodontic treatment performed with light and controlled forces is, therefore, a procedure to be considered acceptable and safe. [ABSTRACT FROM AUTHOR]

Simple Summary: In past populations, some individuals used their front teeth as tools for purposes other than eating, such as making tools or preparing food. These activities have an impact on both the visible part of the tooth (crown) through wear, as well as the part anchored deep in the gum (tooth root) by causing excessive production of a mineralized tissue called 'cementum'. Cementum surrounds the tooth root and forms throughout an individual's life. It records information about the individual's oral health, physiology, and chewing activities. Under certain conditions (e.g., significant mechanical stress or infection), cementum production becomes excessive and exceeds normal physiological limits, resulting in 'hypercementosis'. The present study aims to identify different patterns of cementum apposition and to propose probable causes. We examined a sample of 35 teeth (Sains-en-Gohelle, France, 7th–17th century) and identified four groups of cementum apposition: (i) impacted teeth that never erupted in the mouth, (ii) infected teeth, with caries or gum disease, (iii) hyperfunctional teeth subjected to high mechanical stress, and (iv) hypofunctional teeth that were not used in chewing due to the loss of opposing teeth. We conclude that hypercementosis could provide information on the life history of archeological specimens, even based on isolated teeth. The "teeth-as-tools" hypothesis posits that Neanderthals used their anterior teeth as a tool or a third hand for non-dietary purposes. These non- or para-masticatory activities (e.g., tool-making or food preparation prior to ingestion) have also been described in other past and extant human populations, and other Primates. Cementum is the mineralized tissue that covers the tooth root surface and anchors it to the alveolar bone. Under certain conditions (e.g., mechanical stress, infection), its production becomes excessive (i.e., beyond the physiological state) and is called 'hypercementosis'. Several studies in dental anthropology have established a correlation between the teeth-as-tools and hypercementosis. The present work aims to characterize the different patterns of cementum apposition on archeological teeth and discuss their supposed etiology. Using microtomography and confocal microscopy, the patterns of cementum apposition (i.e., thickness, location, and surface characteristics) were analyzed in 35 hypercementotic teeth (Sains-en-Gohelle, France; 7th–17th c. A.D.). Four groups were identified with distinct hypercementosis patterns: (1) impacted, (2) infected, (3) hypofunctional, and (4) hyperfunctional teeth. Characterizing hypercementosis can contribute to documenting the oral health status (paleopathology) and/or masticatory activity of individuals, even from isolated teeth. This has implications for the study of fossil hominins, particularly Neanderthals, known for their use of anterior teeth as tools and frequent and substantial occurrence of hypercementosis. [ABSTRACT FROM AUTHOR]

Cleidocranial dysplasia (CCD) is a rare autosomal dominant congenital syndrome occurring in approximately one in every million individuals worldwide, primarily affecting bones undergoing intramembranous ossification. Individuals with CCD exhibit hypoplasia or aplasia of the clavicles, open fontanelles and shorter stature, along with various forms of dental abnormalities. The gene RUNX2 plays an essential role in odontoblast and osteoblast differentiation, regulating the expression of many genes associated with the development of hard dental tissues. CCD is this accompanied by characteristic dental abnormalities such as supernumerary teeth, delayed eruption and impaction of permanent teeth. Intrafamilial variations of skeletal and dental abnormalities are well-known. The aim of this study is to present a clinical case and provide a diagnostic approach as a guide for practicing dentists, thereby facilitating their future work with these patients. [ABSTRACT FROM AUTHOR]

Key Clinical Message Gardner's syndrome with the complete manifestation of colonic and extracolonic features is uncommon. Therefore, every clinician should view extracolonic features with a high index of suspicion. This may be key to early diagnosis, definitive management in these patients and importantly, helps prevent malignant transformation of existing colonic polyps.

Supernumerary teeth are formed due to disturbances during the developmental stages of a tooth. The prevalence of supernumerary teeth is higher in the maxilla than the mandible and shows a predilection for the male gender. They may also demonstrate a familial tendency. Such teeth may lead to complications like impaction/altering the eruption path of adjacent teeth, as well as an increased risk of pathologies. Management of these extra teeth is mandated as and when they have been screened, identified, and noted to damage the adjacent teeth or other dentoalveolar structures. This case report presents an extremely rare case of distomolars in all four quadrants in a non-syndromic patient with no positive familial history.

Introduction: There is noticeable variability in reporting the prevalence of impacted teeth, which can be attributed to the variability in the age, gender, and type of populations investigated. Materials and Methods: Panoramic radiographs were examined retrospectively for patients who attended dental clinics at King Abdulaziz Medical City and the College of Dentistry at King Saud bin Abdulaziz University for Health Sciences (KSAU-HS) Riyadh, Saudi Arabia. The sampling frame for the orthodontic population included digital records of 2998 patients randomly selected from an original 8000 patients treated from 2016 to 2022 in the orthodontic clinic. For the general population, 3002 patients were randomly selected from an original 15000 patients treated at the dental college from 2016 to 2022. A tooth was considered impacted if it failed to erupt after two years of the expected complete root formation. Results: The prevalence of at least a single impacted tooth was higher in the orthodontic population (13.2 %) than in the general population (11.2 %). However, this difference was not statistically significant, p = 0.103. The orthodontic population had a significantly higher prevalence of impacted #13, #11,#23,#25. In contrast, the general population had a significantly higher prevalence of all third molars impaction (p

There is noticeable variability in reporting the prevalence of impacted teeth, which can be attributed to the variability in the age, gender, and type of populations investigated. Panoramic radiographs were examined retrospectively for patients who attended dental clinics at King Abdulaziz Medical City and the College of Dentistry at King Saud bin Abdulaziz University for Health Sciences (KSAU-HS) Riyadh, Saudi Arabia. The sampling frame for the orthodontic population included digital records of 2998 patients randomly selected from an original 8000 patients treated from 2016 to 2022 in the orthodontic clinic. For the general population, 3002 patients were randomly selected from an original 15000 patients treated at the dental college from 2016 to 2022. A tooth was considered impacted if it failed to erupt after two years of the expected complete root formation. The prevalence of at least a single impacted tooth was higher in the orthodontic population (13.2 %) than in the general population (11.2 %). However, this difference was not statistically significant, p = 0.103. The orthodontic population had a significantly higher prevalence of impacted #13, #11,#23,#25. In contrast, the general population had a significantly higher prevalence of all third molars impaction (p < 0.005). Although the prevalence of at least a single tooth impaction between the orthodontic and general populations was not significantly different, the type of teeth differs. Hence, understanding the type of population investigated while reporting the prevalence of impacted teeth is critical in understanding the variability between different reports. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Health Sciences / Sağlık Bilimleri Dergisi is the property of Erciyes Universitesi Saglik Bilimleri Dergisi 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.)

Objective The objective of this study was to examine the relative contributions of genetic and environmental influences on variation in dental arch form in individuals who have largely completed their craniofacial growth. Material and methods The subjects of this study comprised dental casts of 50 monozygotic twins and 24 dizygotic twins from the collection of records of twins housed at the Adelaide Dental School, Australia. The subjects were of Western European descent, with an average age of 20.93 ± 5.58 years. Dental casts were scanned using a 3D scanner to analyse the dental arch form. Landmark-based inter-arch and intra-arch measurements were performed. Structural equation modelling was employed to analyse the quantitative data using the normal assumptions of the twin model. Results Genetic modelling revealed that additive genetic and unique environmental factors best explained the observed variation for all occlusal traits measured, except for mandibular intercanine width. High heritability was observed for most intra-arch occlusal variables (0.61–0.85) including the maxillary and mandibular intercanine and intermolar widths, arch depth and perimeter. In contrast, moderate heritability was found for inter-arch occlusal variables (0.52–0.59) such as overjet and overbite. Sexual dimorphism was evident, with males displaying larger posterior arch width than females (P  < 0.05). Limitations Our sample was limited to individuals of Western European ancestry. Conclusion The predominant source of occlusal variation within this group of Australian twins of Western European descent was controlled by genetic effects, and most were highly heritable. Generally, intra-arch occlusal variables showed greater heritability compared with inter-arch occlusal variables. [ABSTRACT FROM AUTHOR]

Background There are a few hypotheses for the origin of palatally impacted canines (PIC). Nevertheless, the results of different studies are controversial. Objective Considering the evidence available in the literature to determine the skeletal and dentoalveolar dimensions in patients with PIC using cone beam computed tomography (CBCT). Search methods This systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Statement. The literature search with no publication date restriction in five databases and hand searching was performed until April 2023. Data collection and analysis Data assessing the skeletal and dentoalveolar characteristics of subjects with PIC evaluated with CBCT was extracted, and the studies' quality was evaluated with the Newcastle-Ottawa Scale (NOS). Skeletal and dentoalveolar characteristics of subjects with PIC were compared with non-impacted subjects or non-impacted sides. MedCalc software was used to perform the meta-analysis. Statistical heterogeneity was assessed using the chi-square and I-square tests. Results The initial database search identified a total of 1153 studies. After applying the selection criteria, nine articles were included in the systematic review and meta-analysis. According to the NOS, all included articles were graded as "Good" quality. The meta-analysis showed a non-significant difference in measuring dentoalveolar height, alveolar first molar width, and basal lateral width. Controversial results were observed when evaluating both basal and alveolar first premolar widths. A significant difference was found when assessing anterior alveolar crest height and basal maxillary width. Conclusions Studies demonstrated the reduction of both dentoalveolar and skeletal maxillary parameters of the patients with PIC. The meta-analysis indicated that PIC correlates to both vertical and transverse skeletal dimensions of the maxilla. However, the results remain controversial. The findings should be interpreted with caution due to different study designs and unbalanced groups in the included studies; therefore, further research is needed for more reliable conclusions. Registration This systematic review and meta-analysis were registered in the International Prospective Register of Systematic Reviews (PROSPERO CRD42022362124) [ABSTRACT FROM AUTHOR]

Introduction: One of the most commonly impacted teeth after third molars is the canine. To achieve a successful functional occlusion, the canine has to be disimpacted, and orthodontic traction is given using various canine springs in conventional bracket prescription. This case series aims to align the canine without any additional mechanics but using the Damon philosophy. [ABSTRACT FROM AUTHOR]

Aims The maxillary sinuses are the largest paranasal sinuses adjacent to the teeth. Various mechanisms play an important role in the growth of maxillary sinus cavities. This study aimed to compare maxillary sinus volume (MSV) with nasal septal deviation (NSD), concha bullosa (CB) impacted teeth, and missing teeth using cone-beam computed tomography (CBCT). Instrument & Methods This retrospective study was conducted on CBCT images of 186 patients referring to a radiography center in Yasuj, Iran, in 2022-23. Data including age, gender, NSD, and CB, impacted teeth, and missing teeth (premolar and canine) were examined. MSV was measured in the coronary section using the 3D NNT viewer software. Findings There was no significant difference between the volume of the right and left maxillary sinuses (p=0.352). Males had a significantly higher mean MSV than females (p<0.001). There were no significant correlations between MSV and age (r=-0.064; p=0.492). No significant differences were found between MSV in sides of NSD (p=0.433), CB (p=0.933), impacted teeth (p=0.815), missing teeth (p=0.497), and the opposite side. There was no statistically significant difference between MSV in mild and moderate NSD on the side of the deviation and the opposite side; only in severe nasal septum deviation was significantly higher than the opposite side (p<0.001). Conclusion The patient's age, NSD, CB, impacted teeth, and missing teeth are unrelated to maxillary sinus volume. Males have higher mean sinus volume than females. [ABSTRACT FROM AUTHOR]

Impacted teeth is one that fails to erupt into the oral cavity within the estimated time. Neurological disorder are diseases of the central nervous system caused by injury to the brain, spinal cord, or nerves. The examples of neurological disorders are neuralgia and cephalgia. Impacted teeth can put persistent pressure on nerve endings and cause pain in the form of headaches which can reduce the patient's quality of life. In a population with impacted teeth, 53.33% complained a rather disturbing headache and 13.33% of the sample complained headaches that interfered with their activities. Studying the relations between neurological disorder and impacted teeth. Impacted teeth may be associated with neurological disorders such as neuralgia and cephalgia due to persistent pressure from impacted teeth on the nerve endings in contact with them. Impacted teeth may be associated with neurological disorders such as neuralgia and cephalgia. [ABSTRACT FROM AUTHOR]

Abstract Background Kissing molars (KMs) is defined as a state in which the apex of two impacted molars face opposite directions and the occlusal surfaces touch each other and the crown is in one follicle. Class III KMs have been reported previously; however, reports on class III KMs in young people (

This case report describes the orthodontic treatment of an 11-year-old patient with three maxillary impacted teeth on the right side. Cone-beam computed tomography showed that these teeth were close together, with the lateral incisor in a lower position, followed by the central incisor, and the canine in a more apical position. Treatment included applying traction to these teeth. A transpalatal arch was used as an anchorage device, and surgical exposure of the lateral incisor was performed for traction with an elastic chain toward the hook welded to the 0.017 × 0.025-inch steel segmented arch. Subsequently, the central incisor was surgically exposed, elastic chains were used, along with a 0.016-inch steel arch with a box loop for correcting the tooth position. The canine spontaneously began to erupt, and a 0.017 × 0.025-inch TMA segmented arch with boot loop was used to control rotation and torque of the canine during its distalization. Once these three teeth were in the arch, treatment was finished in the usual manner. For esthetic improvement, gingivoplasty was performed in the maxillary arch. Eighteen-month follow-up showed that orthodontic treatment allowed preservation of the natural teeth, the contour of gingival support, and avoidance of prosthetic rehabilitation, reestablishing the patient's esthetics and function, with satisfactory stability. [ABSTRACT FROM AUTHOR]