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논문 기본 정보

자료유형
학술저널
저자정보
Oh, Song Hee (Department of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University) Nahm, Kyung-Yen (Department of Orthodontics, Graduate School, Kyung Hee University) Kim, Seong-Hun (Department of Orthodontics, Graduate School, Kyung Hee University) Nelson, Gerald (Department of Orthodontics, Graduate School, Kyung Hee University)
저널정보
대한영상치의학회 Imaging science in dentistry Imaging science in dentistry 제50권 제1호
발행연도
2020.1
수록면
9 - 14 (6page)

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Purpose: The purpose of this study was to evaluate vertical bone loss and alveolar bone thickness in the maxillary and mandibular incisors of patients with skeletal class III malocclusion. This study also aimed to evaluate the periodontal condition of class III malocclusion patients who had not undergone orthodontic treatment. Materials and Methods: The sample included cone-beam computed tomography scans of 24 Korean subjects (3 male and 21 female). Alveolar bone thickness (ABT), alveolar bone area (ABA), alveolar bone loss (ABL), and fenestration of the maxillary and mandibular incisors were measured using 3-dimensional imaging software. Results: All incisors displayed an ABT of less than 1.0 mm from the labial surface to root level 7 (70% of the root length). A statistically significant difference was observed between the mandibular labial and lingual ABAs and between the maxillary labial and mandibular labial ABAs. The lingual ABA of the mandibular lateral incisors was larger than that of the mandibular central incisors. ABL was severe on the labial surface. A statistically significant difference was observed between the maxillary and mandibular labial ABL values(21.8% and 34.4%, respectively). Mandibular lingual ABL (27.6%) was significantly more severe than maxillary lingual ABL (18.3%) (P<0.05). Eighty-two fenestrations were found on the labial surfaces of the incisors, while only 2 fenestrations were observed on the lingual surfaces. Fenestrations were most commonly observed at root level 6. Conclusion: Careful evaluation is needed before orthodontic treatment to avoid iatrogenic damage of periodontal support when treating patients with class III malocclusion.

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