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

宮本 裟也 佐藤 仁 栗原 祐史 田中 元博 稲田 大佳暢 堅田 凌悟 守谷 崇 安田 有沙 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.31, no.4, pp.197-203, 2021 (Released:2021-12-22)

参考文献数

23

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Acromegaly is an endocrine disease caused by excessive secretion of growth hormone (GH) after the end of the growth period, due to a pituitary adenoma. Mandibular prognathism, tongue hypertrophy, and bulging of the eyebrow arch are observed in the maxillofacial region. We describe a case with acromegaly for which surgical orthodontic treatment was performed after excision of the pituitary adenoma. A 47-year-old woman who became aware of enlargement of the size of the hands and feet from 35 years old was diagnosed with acromegaly by the Department of Neurosurgery because of a high GH level and a pituitary tumor on MRI. In September 2014, chemotherapy was performed after tumor resection via the nasal cavity. In March 2016, she was referred to the Department of Orthodontics of our hospital for further examination and treatment of malocclusion. Overjet and overbite were −5.0mm and +2.5mm, respectively. The occlusal relationship of the molars was Angle class Ⅲ. Angular analysis of lateral cephalometric analysis showed SNA: 80.0°, SNB: 77.0°, ANB: 3.0°, and FMA: 37.9°. Mandibular prognathism was diagnosed based on a Wits appraisal of −7.1. Since there was no clinical activity of acromegaly and hypertrophy of the hard and soft tissues due to acromegaly had stopped, and serum insulin-like growth factor-1 was well controlled by chemotherapy, orthognathic treatment was started in April 2016 and bimaxillary surgery was performed in January 2019. The occlusal relationship was stable and there was no recurrence at 2 years after the surgery. Since acromegaly has various complications, it is necessary to create a treatment plan considering the complications, and to perform extended follow-up due to the potential for recurrence of the disease.

著者

渡辺 仁資 井上 理 金塚 文子 栗原 祐史 松浦 光洋 吉濱 泰斗 代田 達夫 羽鳥 仁志 新谷 悟

出版者

昭和大学・昭和歯学会

雑誌

Dental Medicine Research (ISSN:18820719)

巻号頁・発行日

vol.30, no.1, pp.57-62, 2010-03-31 (Released:2013-03-26)

参考文献数

12

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公 告掲載論文の取り下げについて 本誌,Vol.30 No.1 (2010年 3月号)に掲載された「当科における過去 3年間の口腔悪性腫瘍症例の臨床統計的検討」渡辺仁資,井上 理,金塚文子,栗原祐史,松浦光洋,吉濱泰斗,代田達夫,羽鳥仁志,新谷 悟 上記論文につきましては,データ解析のための統計学的方法とその解釈に不備があっため,著者本人の依頼により取り下げに致します.なお,論文審査過程において指摘できなかったことを真摯に受け止めて,今後の論文審査を実践いたします.2013年 10月 30日 Dental Medicine Research編集委員長 中村雅典

著者

氷見 奈々絵 栗原 祐史 筑田 洵一郎 高松 弘貴 笹間 雄志 代田 達夫

出版者

公益社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.66, no.8, pp.411-415, 2020-08-20 (Released:2020-10-20)

参考文献数

9

被引用文献数

1

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We report a case in which an impacted supernumerary tooth migrated from the mandibular ramus to the mandibular coronoid process. A 19-year-old male underwent a panoramic X-ray for orthodontic treatment at the age of 14 years. An opaque region with a well-defined border was seen at the front edge of the right mandibular ramus. Since the right lower third molar was also present, the opaque region was diagnosed as an impacted supernumerary tooth. Imaging examinations, performed every 2 years, showed that the impacted supernumerary tooth gradually moved from the mandibular ramus to the mandibular coronoid process. Thus, the patient visited our department to undergo detailed examinations and treatment. On panoramic X-ray and CT performed at the patient’s first visit to our department, the impacted supernumerary tooth had a total length (root axis) of about 10 mm, the tooth axis was located at the upper end of the right mandibular coronoid process, and part of the tooth was located outside of the tip of the mandibular coronoid process. Under general anesthesia, the impacted supernumerary tooth was extracted. Since the mandibular coronoid process was thin, it was resected during removal of the supernumerary tooth. There was no trismus or mandibular deviation 1 year after the operation.

著者

藤井 三晴 栗原 祐史 代田 達夫 八十 篤聡 武井 良子 高橋 浩二

出版者

昭和大学学士会

雑誌

昭和学士会雑誌 (ISSN:2187719X)

巻号頁・発行日

vol.75, no.5, pp.567-572, 2015 (Released:2016-03-09)

参考文献数

7

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今回,われわれは構音障害を主訴に来院した,巨大な口蓋隆起と両側性の下顎隆起の症例を治療する機会を得たので報告する.症例は60歳男性である.口蓋および下顎舌側臼歯部の骨隆起を放置していたところ徐々に増大し,構音障害を生じたため,当科を受診した.初診時,口蓋正中部に約27×20×14mm,上顎右側臼歯部に約16×11×13mmの骨様硬の膨隆を認め,下顎右側前歯部舌側から臼歯部にかけて約6×7×8mm,下顎左側前歯部から臼歯部にかけて約20×14×13mmの骨様硬の膨隆を認めた.全身麻酔下で,口蓋隆起および下顎隆起除去術を施行した.術前と術後で構音障害について,発語明瞭度検査,文章了解度検査,会話明瞭度検査により評価したところ,術後に改善が確認された.また,患者本人も術後に構音障害の改善を自覚し,満足感を得ていた.なお,創部の治癒経過も良好であった.

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.