ササキ　リヨウ   SASAKI Riyou   佐々木　亮    所属   医学部 医学科（東京女子医科大学病院）    職種   講師
論文種別	症例報告
言語種別	英語
査読の有無	査読あり
表題	Bruxism-Related Titanium Miniplate Fracture in the Mandibular Condyle.
掲載誌名	正式名：The Journal of craniofacial surgery 略　 称：J Craniofac Surg ISSNコード：15363732/10492275
掲載区分	国外
巻・号・頁	pp.in press
著者・共著者	Ryo Sasaki, Toshihiro Okamoto
担当区分	筆頭著者,責任著者
発行年月	2025/11
概要	Fracture of titanium miniplates after internal fixation of mandibular condylar fractures is rare, accounting for 2.6% of cases in our previous study. A 54-year-old woman presented with a right condylar neck fracture with medial displacement from a fall due to alcohol. Internal fixation was performed with two 4-hole titanium miniplates with nonlocking screws. Postoperative images showed anatomic reduction without deviation. No intermaxillomandibular fixation was performed, and the patient followed a soft diet for 3 weeks. A panoramic radiograph at 5 months postoperatively showed a miniplate fracture. The patient's maximum mouth opening was 45 mm, with no malocclusion or symptoms. Scanning electron microscopy revealed striation lines on the removed, fractured hole, indicating a metal fatigue fracture. Postoperative interviews revealed the patient had bruxism and failed to follow the no smoking protocol.
DOI	10.1097/SCS.0000000000012159
PMID	41289982