A new rationale for preservation of the mandibular third molar in orthognathic patients with missing molars
백운봉, 김윤지, 채화성, 박재억, Julian Stefania, 이의룡,
소속 상세정보
백운봉 ( Baik Un-Bong ) - Private practice
김윤지 ( Kim Yoon-Ji ) - Korea University Anam Hospital Department of Orthodontics
채화성 ( Chae Hwa-Sung ) - Ajou University School of Medicine Department of Orthodontics
박재억 ( Park Je-Uk ) - Catholic University Seoul St. Mary’s Hospital Department of Oral and Maxillofacial Surgery
( Julian Stefania ) - University of Salvador Orthodontics and Maxillary Orthopedics
이의룡 ( Lee Ui-Lyong ) - Chung-Ang University Hospital Department of Oral and Maxillofacial Surgery
Abstract
Controversies exist regarding the need for prophylactic extraction of mandibular third molars in patients who plan to undergo orthognathic surgery. An 18-year-old male patient was diagnosed with mandibular prognathism and maxillary retrognathism with mild facial asymmetry. He had a severely damaged mandibular first molar and a horizontally impacted third molar. After extraction of the first molar, the second molar was protracted into the first molar space, and the third molar erupted into the posterior line of occlusion. The orthognathic surgery involved clockwise rotation of the maxil-lomandibular complex as well as angle shaving and chin border trimming. Patients who are missing or have damaged mandibular molars should be monitored for eruption of third molars to replace the missing posterior tooth regardless of the timing of orthognathic surgery.
키워드
Orthodontics; Orthognathic surgery; Sagittal split ramus osteotomy; Temporary anchorage device; Third molar
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