著者

葭葉 清香 代田 達夫 山口 徹太郎 新 真紀子 栗原 祐史 槇 宏太郎 新谷 悟

出版者

THE JAPANESE SOCIETY FOR JAW DEFORMITIES

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.23, no.1, pp.1-7, 2013-04-15 (Released:2013-05-13)

参考文献数

27

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In this study, we evaluated the usefulness of bioabsorbable poly-L-lactide (PLLA) mini-plates for bone fixation after Le Fort I osteotomy and bilateral sagittal split osteotomy (SSRO). The subjects were 19 patients, who received two-jaw surgery using titanium and PLLA mini-plates. Lateral cephalograms were taken before surgery (T1), immediately after surgery (T2), and more than six months after surgery (T3). Changes in the measurement points were statistically analyzed. There was no statistical difference in the postoperative skeletal difference between the two groups. The post-operative stability of PLLA mini-plates is comparable to that of titanium mini-plates. PLLA mini-plates are considered to be clinically useful.

著者

朴 熙泰 清宮 一秀 小泉 創 中静 利文 星 憲幸 木本 克彦 山口 徹太郎

出版者

一般社団法人 日本デジタル歯科学会

雑誌

日本デジタル歯科学会誌 (ISSN:24327654)

巻号頁・発行日

vol.10, no.3, pp.133-137, 2021 (Released:2023-02-16)

参考文献数

6

著者

栗原 祐史 勝田 秀行 山口 徹太郎 安田 有沙 塩竃 素直 佐藤 仁 斉藤 芳郎 鴨志田 慎之助 鎌谷 宇明 代田 達夫

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.27, no.1, pp.17-23, 2017-04-15 (Released:2017-05-02)

参考文献数

9

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We report two cases of genioplasty performed using a navigation system. In recent years, virtual orthognathic surgeries have been performed using simulation software with data from preoperative computed tomography (CT), and the osteotomy design, direction and distance of bony segment movement have been established. Despite the accuracy of simulations using three-dimensional CT data, results obtained from simulations cannot be effectively applied to clinical practice unless comparisons can be made to actual surgery. We report our experience of performing genioplasty using simulation software with preoperative CT data, and established the osteotomy design as well as the direction and distance of bony segment movement. Simulation-guided navigation osteotomy was performed with reference to simulation results transferred to the navigation system. A reference antenna was attached to the head of the patient using a headband. Next, interfacing laser registration was performed. Osteotomy was then performed along the osteotomy line drawn on the chin bone surface using piezosurgery and a tracker, and the bone segment was mobilized by down-fracture using a bone saw. Using the image of the simulated repositioned bone segment shown on the navigation system screen, the bone segment was moved to the determined position and fixed. Our results suggest that use of a navigation system allows safer, more precise genioplasty.