Objective: This study aims to assess the prevalence of mesiodens in a Turkish pediatric population and to radiographically investigate the characteristics of mesiodentes and the complications caused by them. Materials and Method: This study examined panoramic radiographs of 8002 patients aged 4-16 years. Patients were evaluated for age, gender, dentition status, the number, shape, and position of mesiodens, and complications it causes. Results: A total of 39 mesiodentes were found in 30 patients. the gender ratio was 2:1, but the difference was not statistically significant (p=0.2). Mesiodentes were most common in the conical form, followed by the tuberculate and the least supplemental. Seventy-seven percent of the mesiodentes are located vertically, 15% horizontally, and 8% inverted; 51% erupted, and 49% impacted. With a rate of 43%, displacement or axial rotation of the permanent central incisors was the most common complication. The delayed eruption was the second most common complication (%37). Diastema was noted in 27%. Cyst formation was noted in 7%. There was a statistically significant relationship between the number of mesiodentes seen simultaneously and the number of complications (p=0.022). Conclusion: The prevalence of mesiodens was determined to be 0.37% in the analyzed population, consistent with the literature. At least one mesiodens-related complication was noted in 80% of patients. As for complications, the number of concurrent mesiodentes observed is significant. Complications can be avoided by early diagnosis and timely surgical intervention.

Objectives: This study aimed to develop and compare two YOLOv12-based deep learning models—object detection and pose estimation—for the automatic classification of orthodontically induced external apical root resorption (OIEARR) using panoramic radiographs. Materials and methods: A total of 624 panoramic radiographs obtained from 312 patients aged 10–18 who underwent at least 12 months of fixed orthodontic treatment were retrospectively analyzed. Each maxillary central and lateral incisor was graded for OIEARR severity on a 4-point scale (Grade 0 to Grade 3) by two experienced orthodontists serving as the ground truth. Two YOLOv12-based models were trained: an object detection (OD) model for regional analysis and a pose estimation (PE) model for anatomical landmark localization. Both models were trained and validated on annotated panoramic images and evaluated using accuracy, precision, recall, specificity, F1-score, confusion matrix, and ROC-AUC. Results: The PE model outperformed the OD model across all evaluation metrics, demonstrating superior performance in detecting OIEARR. Specifically, the PE model achieved a weighted F1-score of 0.88, compared to 0.60 for the OD model. It also showed higher accuracy (0.93 vs. 0.78), precision (0.88 vs. 0.64), and recall (0.88 vs. 0.59), confirming its robustness in root resorption classification. Particularly in Grade 1 and Grade 2 resorption categories, the PE model demonstrated markedly superior classification performance (F1 = 0.85 and 0.88, respectively), while maintaining excellent detection in Grade 3 cases (F1 = 0.95). Confusion matrix analysis revealed that most misclassifications occurred between neighboring grades. ROC-AUC values for the PE model were consistently high (0.90–0.99), indicating strong discriminative ability across all resorption stages. Conclusions: The YOLOv12x PE model offers a reliable and sensitive tool for detecting varying degrees of root resorption on panoramic radiographs. Its fine-grained anatomical localization capabilities provide an advantage for early diagnosis, making it a promising approach for clinical decision support in orthodontics.

Amaç: Bu çalışmada Şanlıurfa bölgesinde yaşayan bireylerin mandibular gömülü üçüncü molar diş pozisyonlarının değerlendirilmesi amaçlanmıştır. Materyal-metot: Bu retrospektif çalışmada; 2017 ve 2020 yılları arasında Harran Üniversitesi Diş Hekimliği Fakültesi’ne, çeşitli sebeplerle başvuran 1096 hastanın (469 kadın, 627 erkek) panoramik radyografileri incelenmiştir. Dişlerin gömülülük durumu Winter ve Pell- Gregory sınıflandırmasına göre değerlendirilmiştir. Hastanın yaş ve cinsiyeti ile birlikte; dişlerin gömülü kalma oranları, lokalizasyonları, gömülülük seviyelerinin cinsiyete ve yaşa göre dağılımları kaydedilmiştir. Bulgular: Bu çalışmada 1096 hastanın 2192 tane mandibular üçüncü molar dişi incelenmiştir. Cinsiyete göre dağılım incelendiğinde %42,79’u erkek ve %57,21’i ise kadındır. Cinsiyet ile mandibular üçüncü molar konumu arasında istatistiksel olarak anlamlı ilişki bulunmaktadır (p0,05). Sonuç: Mandibular üçüncü molar dişler gömülü oldukları zaman çeşitli komplikasyonlara yol açabilmektedir. Bu yüzden bu dişlerin konumunun değerlendirilmesi önemli bir konudur.

External apical root resorption (EARR) is a multifactorial and often irreversible complication observed during orthopaedic and fixed appliance treatment. T

Aims: The aim of this study was to investigate the association between self-perceived dental aesthetics and self-esteem and psychosocial status among dental students, and to evaluate whether these associations differed across academic years.Methods: A total of 312 dental faculty students were included in the study using the convenience sampling method and were divided into five groups according to their academic year. The participants were administered the Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ), the Rosenberg Self-Esteem Scale (RSES), the Aesthetic Component (AC) of the Index of Orthodontic Treatment Need (IOTN), and a Visual Analog Scale (VAS).Results: As a result of the study, no statistically significant differences were found among the academic years in terms of self-esteem, AC, VAS, and PIDAQ scores (p>0.05). However, descriptively, first-year students showed the lowest mean scores for dental self-confidence, aesthetic concern, psychological impact, total PIDAQ, and self-esteem. In contrast, the aesthetic concern and dental self-confidence subscales were highest, whereas the social impact subscale was lowest among fifth-year students.Conclusion: In our study, although differences in theoretical knowledge and clinical exposure are expected across academic years, students’ self-perceived dental aesthetics and associated psychosocial responses were observed to remain largely stable. These findings suggest that such perceptions may be more strongly associated with individual characteristics than with academic level. Therefore, in order to better evaluate the role of academic year from a statistical perspective, future studies should re-administer the same measurement scales to the same sample groups as they progress through their education and analyze the responses comparatively with those obtained in previous years.

Traumatic dental injuries are most commonly seen in maxillary incisors. In trauma cases, healthy chewing, good aesthetic appearance and continuity of the tooth in the mouth to fulfil its functions in speech are desired. A mixed dentition male patient with a chronological age of 9 years and 1 month was admitted to Harran University Faculty of Dentistry due to a crown fracture in tooth number 11 caused by trauma. Intraoral examination revealed a complicated crown-root fracture in the tooth. Endodontic and restorative treatment of the tooth was planned. However, it was understood that there were not enough crowns for these procedures. Extrusion of the central tooth was planned. Bonding was performed between the first molars and teeth 12-22. Extrusion was started 3 months after the trauma. Activation was ensured with monthly controls. At 3 months, sufficient extrusion was achieved. Composite laminated restoration was successfully completed with increasing crown length. An ideal treatment result was achieved with a multidisciplinary approach in a 9-year-old child with crown-root fracture due to trauma.