https://oak.chosun.ac.kr/handle/2020.oak/18289 Thu, 09 Apr 2026 19:06:06 GMT 2026-04-09T19:06:06Z https://oak.chosun.ac.kr/handle/2020.oak/19122 Title: The incidence of oral and maxillofacial lesions in children over a 10-year period (2010-2020) in East Azerbaijan Author(s): Amirala Aghbali; Negin Arianpour; Sepideh Vosough Hosseini; Maedeh Vakili Saatloo Abstract: This study aimed to investigate pediatric patients aged < 12 years who had oral and maxillofacial lesions and were referred to the Tabriz Pediatric Hospital during the 10-year period of 2010-2020. In this prospective, cross-sectional study, documents with final diagnosis were separated, and the demographic data of the patients, including age, sex, and location of lesions, were collected from the records. Microscopic slides of each case were reviewed by two pathologists. The lesions were classified into the following five categories: developmental lesion, benign tumors, malignant tumors, infectious lesions, and inflammatory lesions. One-way ANOVA was applied to compare the frequency of the lesions using SPSS Statistics for Windows, Version 17.0 (SPSS Inc., Chicago, IL, USA). Overall, 9,314 biopsy records of pediatric patients aged ≤12 years were studied. We identified and analyzed 8,993 cases with inflammatory lesions, 171 with developmental lesions, 71 with reactive lesions, 64 with benign tumors, and 15 with malignant tumors. Furthermore, the most common lesion site was the neck ( >98.5%), and the most uncommon site was the nasal area, accounting for only two lesions. Moreover, among inflammatory lesions, follicular hyperplasia and tonsillitis were the most common with a frequency of 99.1% (8,916 cases) observed in 3,656 (40.7%) female and 5,337 (59.3%) male. Sixty-nine (40.4%) female and 102 (59.6%) male had developmental lesions. The present results showed that the most common type was inflammatory lesion whereas the least common type was malignant lesion. Tue, 31 Dec 2019 15:00:00 GMT https://oak.chosun.ac.kr/handle/2020.oak/19122 2019-12-31T15:00:00Z https://oak.chosun.ac.kr/handle/2020.oak/19123 Title: Drug-induced pemphigus-like lesion accompanied by severe gingival enlargement Author(s): Min-keun Kim; Suk-keun Lee Abstract: Pemphigus-like gingival lesions are common in elderly individuals who are on long-term systemic medications. We report the case of a patient with drug-induced pemphigus-like lesion with severe gingival enlargement who was examined using histological and immunohistochemical methods. A 67-year-old woman with a history of breast cancer and on antihypertensive therapy complained of tumorous gingival enlargement in the left premolar and molar regions of both arches. The involved teeth showed extensive bony destruction, and a malignant tumor was suspected. Cytological examination revealed several round-to-polygonal acantholytic keratinocytes with normal nuclei. Severe gingival inflammation accompanied by extensive acantholysis of the surface epithelium caused multiple erosions and ulcerations in the absence of tumor growth. β-catenin was weakly expressed in the erosive epithelium, whereas LC3 and GADD45 were found to be strongly positive. These findings suggested that the erosive epithelium had slowly degenerated via autophagy and cellular growth arrest. Thus, the erosive epithelium was suspected to be chronically damaged by certain drugs rather than by acute cytotoxic changes. Following drug cessation, the gingival hyperplasia rapidly regressed with simple oral hygiene care and partial gingivectomy. Drug-induced pemphigus-like lesions can be diagnosed using detailed medical history and pathological examinations and should be followed by a conservative treatment. Tue, 31 Dec 2019 15:00:00 GMT https://oak.chosun.ac.kr/handle/2020.oak/19123 2019-12-31T15:00:00Z https://oak.chosun.ac.kr/handle/2020.oak/19124 Title: Clinical application of a superficial layer of the mylohyoid muscle during bone augmentation: A case report Author(s): Min-cheol Yang; Seong-joong Park; Won-pyo Lee; Byung-ock Kim Abstract: Guided bone regeneration is a reliable technique used to augment deficient alveolar bone defects. Soft tissue management is one of the several critical factors involved in the bone augmentation procedure. It is very dangerous to extend the lingual flap without creating tension owing to the presence of anatomical structures, particularly in the lower posterior region. Here, we report a method, where the lingual flap is advanced further using the mylohyoid muscle for primary wound closure in the augmented area (lower posterior edentulous region). Tue, 31 Dec 2019 15:00:00 GMT https://oak.chosun.ac.kr/handle/2020.oak/19124 2019-12-31T15:00:00Z https://oak.chosun.ac.kr/handle/2020.oak/19121 Title: Age estimation by pulp/tooth area ratio in a Korean sample on digital panoramic radiographs Author(s): Byung-yoon Roh; Chang-gyum Kim; Sang-seob Lee; Won-joon Lee; Yo-seob Seo; Ji-won Ryu; Jong-mo Ahn; Chang-lyuk Yoon Abstract: Age estimation based on the change in the size of the pulp due to secondary dentin deposition can be conducted non-invasively using radiographic photographs. Among these methods, age estimation using the pulp/tooth area ratio is highly accurate. The present study was conducted to apply this method using the panoramic radiographs of a Korean sample population and to evaluate its applicability in the Korean population. The study was conducted using panoramic radiographic images of 349 Koreans aged 20-79 years. The pulp/ tooth area ratio was calculated by measuring the area of the pulp and tooth. Teeth with a single canal, such as maxillary central incisor, lateral incisor, canine, and mandibular canine, were selected. Correlations between this ratio and age were calculated and regression formulas were derived. Age and pulp/tooth area ratio showed relatively low correlations compared with other studies. In particular, men showed lower correlations than women, and upper teeth showed a higher correlation than lower teeth. The regression formulas derived in this study also showed higher errors than those reported in other studies. Age estimation using pulp/tooth area ratio in a Korean using digital panoramic radiographs showed larger errors when compared with previous studies. Morphological diversity of tooth and pulp, indistinct anatomical details in panoramic radiograph, reduction in crown size due to attrition, and ethnic differences are believed to have affected the results. Tue, 31 Dec 2019 15:00:00 GMT https://oak.chosun.ac.kr/handle/2020.oak/19121 2019-12-31T15:00:00Z