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정중구개봉합의 급속확대술에 의한 Angle씨 3급부정교합의 교정치험예
A CASE REPORT OF ORTHODONTIC TREATMENT OF ANGLE’S CLASS III MALOCCLUSION BY RAPID MIDPALATAL EXPANSION

Korean Journal of Orthodontics 1977년 7권 1호 p.31 ~ 39

강봉기, 서정훈,

소속 상세정보

강봉기 ( Kang Bong-Ki ) - 서울대학교 대학원 치의학과 교정학
서정훈 ( Seo Jeong-Hun ) - 서울대학교 치과대학 치과교정학교실

KMID : 0361919770070010031

Abstract

The patient, 18-year-old girl, had a class III malocclusion with the lateral compression of the maxilla due to the premature loss of the canines, mild mandibular prognathism, and mouth breathing habit. The treatment plan consisted of 1) rapid maxillary expansion 2) a period of retention 3) extraction of the first mandibular premolars instead of surgical correction 4) completion of orthodontic treatment with multibanded system. The maxilla was separated in the midline by the application of orthopedic forces via a cemented rapid maxillary expansion device. After 18 months, She gained functional overbite-overjet relationship, good interdigitation of buccal segments, and facial harmony due to the retraction of lower anterior teeth.