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タイトル: Position of mandibular canal and ramus morphology before and after sagittal split ramus osteotomy
著者: Ueki, Koichiro link image
Okabe, Katsuhiko
Miyazaki, Mao
Mukozawa, Aya
Marukawa, Kohei
Nakagawa, Kiyomasa link image
Yamamoto, Etsuhide link image
上木, 耕一郎
岡部, 克彦
宮﨑, 真凡
中川, 清昌
山本, 悦秀
発行日: 2010年
出版社(者): Elsevier
雑誌名: Journal of Oral and Maxillofacial Surgery
ISSN: 0278-2391
巻: 68
号: 8
開始ページ: 1795
終了ページ: 1801
抄録: Purpose: The purpose of this study was to evaluate changes in the mandibular canal and ramus morphology before and after a sagittal split ramus osteotomy. Patients and Methods: The subjects were 30 patients (60 sides) with mandibular prognathism who had undergone bilateral sagittal split ramus osteotomy setback surgery. The mandibular canal position and ramus morphology were measured at the 3 horizontal planes under the mandibular foramen level (level A), 1 cm lower than level A (level B), and 2 cm lower than level A (level C) preoperatively and 1 year postoperatively by computed tomography. Results: Postoperative ramus width, lateral distance, lateral marrow distance, and canal length were significantly larger than the preoperative values at the foramen, 1 cm lower, and 2 cm lower. The mandibular canal completely contacted the lateral cortex without lateral bone marrow in 6 sides (10%) in levels A and B and 4 sides (6.7%) in level C preoperatively and 6 sides (10%) in level C postoperatively. Conclusion: This study suggested that postoperative mandibular canal position was located more posteriorly and the postoperative lateral bone marrow became thicker compared with the preoperative state. ツゥ 2010 American Association of Oral and Maxillofacial Surgeons.
DOI: 10.1016/j.joms.2009.07.106
URI: http://hdl.handle.net/2297/25211
関連URI: http://www.elsevier.com/locate/issn/02782391
資料種別: Journal Article
版表示: author
出現コレクション:1. 査読済論文(医学・保健)

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