선천성 치아결손 및 매복을 동반한 성장기 환자의 간접 골격성 고정원을 이용한 구치 전방 견인 치험례
Molar Protraction Using Mini-Implant Indirect Skeletal Anchorage in a Growing Patient with Congenital Missing and Impaction
김수영, 김민지, 전윤식,
소속 상세정보
김수영 ( Kim Soo-Young ) - 이화여자대학교 의과대학부속목동병원 치과교정과
김민지 ( Kim Min-Ji ) - 이화여자대학교 의과대학부속목동병원 치과교정과
전윤식 ( Chun Youn-Sic ) - 이화여자대학교 의과대학부속목동병원 치과교정과
Abstract
This case report describes a successful molar protraction treatment using mini-implant indirect skeletal anchorage in
a growing patient with congenital missing and impaction of second premolars. A 11-years-old female patient showing
skeletal Class I malocclusion with congenital missing of mandibular second premolars and horizontal impaction of a
maxillary left second premolar visited our clinic. After extraction of the remained primary second molars and impacted
maxillary left second premolar, the maxillary left first molar was mesially drifted. However, since the extraction space
was not completely closed, mandibular first molars were protracted by using mini-implant as an indirect skeletal
anchorage. After the protraction of mandibular first molars, fixed orthodontic appliances were bonded. Overall treatment
was completed in 24 months and mandibular molars were successfully protracted with the increase of alveolar bone
width, less buccal bone dehiscence, and no root resorption. Therefore, molar protraction using mini-implant indirect
skeletal anchorage could be a good orthodontic treatment option to replace the missing premolars in growing patients.
키워드
Molar protraction; Mini-implant; Indirect skeletal anchorage; Growing patient; Congenital missing
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