Trismus Due to Bilateral Coronoid Hyperplasia
최문기, 김동혁, 기은정, Cheon Hae-Myung,
소속 상세정보
최문기 ( Choi Moon-Gi ) - Wonkwang University School of Dentistry Department of Oral and Maxillofacial Surgery
김동혁 ( Kim Dong-Hyuck ) - Wonkwang University College of Dentistry Department of Oral and Maxillofacial Surgery
기은정 ( Ki Eun-Jung ) - Wonkwang University Dental Hospital Department of Oral and Maxillofacial Surgery
( Cheon Hae-Myung ) - Wonkwang University Dental Hospital Department of Oral and Maxillofacial Surgery
KMID : 1036320140360040168
Abstract
Bilateral coronoid hyperplasia causes painless progressive trismus, resulting from coronoid process impingement on the posterior aspect of the zygomatic bone. The etiology of coronoid hyperplasia is unclear, with various theories proposed. An endocrine stimulus, increased temporalis activity, trauma, genetic inheritance and familial occurrence have all been proposed, but no substantive evidence exists to support any of these hypotheses. Multiplanar reformatting of axial scans and 3-dimensional reconstruction permit precise reproduction of the shape and size of the coronoid and malar structures, and relationships of all structures of the temporal and infratemporal fossae. This case shows remarkably increased mouth opening by coronoidectomy in a patient who complained of trismus due to hyperplasia of coronoid process.
키워드
Mandible; Trismus; Hyperplasia
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