アブストラクト(53巻1/2号:神奈川歯学)

神奈川歯学

Japanese

Title : 両側筋突起過形成症の1例
Subtitle : 症例
Authors : 小枝聡子1), 田村摩衣子1), 石井滋1), 南雲達人1), 槻木恵一2)**, 中村篤1)*
Authors(kana) :
Organization : 1)神奈川歯科大学附属横浜クリニック横浜研修センター歯科口腔外科, 2)神奈川歯科大学大学院歯学研究科口腔科学講座環境病理学・口腔病理診断学分野, *(主任: 診療科教授), **(主任: 教授)
Journal : 神奈川歯学
Volume : 53
Number : 1/2
Page : 19-25
Year/Month : 2018 / 12
Article : 報告
Publisher : 神奈川歯科大学学会
Abstract : 「緒言」 開口障害をきたす疾患は関節性と非関節性に大別されるが, 筋突起過形成症は肥大した筋突起が頬骨弓内面に干渉しておこる非関節性開口障害であり開口障害の約5%を占めるとされる. 無痛性の開口障害を特徴とし, 治療は口外法あるいは口内法による筋突起切除とされる. 今回われわれは, 両側筋突起切除により開口障害が改善した1例を経験したので報告する. 「症例」 1. 初診時年齢, 性別 42歳, 男性. 2. 主訴 口が開きづらい. 3. 現病歴 小学生の頃より口が開きにくいのを自覚していた. 42歳時, 口が開きづらいため歯科医院を受診し消炎処置が行われたが改善しないため, 病院歯科を受診しさらに当科を紹介された. 4. 家族歴 特記事項なし. 5. 既往歴 43歳時 膵炎.
Practice : 歯科学
Keywords : 開口障害, 筋突起過形成, 頬骨

English

Title : Bilateral Hyperplasia of Mandibular Coronoid Process : A Case Report
Subtitle :
Authors : Satoko KOEDA1), Maiko TAMURA1), Shigeru ISHI1), Tatsuhito NAGUMO1), Keiichi TSUKINOKI2)**, Atsushi NAKAMURA1)*
Authors(kana) :
Organization : 1)Department of oral surgery, Kanagawa dental university, Yokohama clinic, 2)Division of environmental pathology, Department of oral science, Graduate school of dentistry, Kanagawa dental university, *(Chief: Clinical professor), **(Chief: Professor)
Journal : Kanagawa Shigaku
Volume : 53
Number : 1/2
Page : 19-25
Year/Month : 2018 / 12
Article : Report
Publisher : Kanagawa Odontological Society
Abstract : [Abstract] Hyperplasia of mandibular coronoid process is an uncommon congenital or developmental disorders and results mechanical restriction of the mouth opening. We report a case of bilateral hyperplasia of coronoid process treated by bilateral coronoidectomies. A 42-years old man was referred to our clinic for evaluation of restricted mouth opening. He had no pain and maximum mouth opening (MMO) was 18 mm. Computer tomography (CT) revealed bilateral elongated mandibular coronoid processes and consequence of interference between the hyperplastic coronoid process and the medial surface of zygomatic arch. Magnetic resonance imaging showed internal derangement without reduction in both temporomandibular joints. We suspected limited mouth opening by temporomandibular joint disorders. Although we did jaw-stretching exercise, no effect for limited mouth opening. We diagnosed bilateral hyperplasia of mandibular coronoid processes and did procedure coronoidectomies. Intraoperative MMO was 50 mm. Following jaw-stretching exercise at 4 month after surgery MMO was 45 mm. As a result, we were able to improve limited mouth opening caused from hyperplasia of mandibular coronoid processes by coronoidectomies. CT is useful for evaluation of not only mandibular coronoid process but also zygomatic arch.
Practice : Dentistry
Keywords :