상악 견치 후방견인시 MAS(Molar Anchoring Spring)의 저항원 조절에 대한 임상적 연구
A CLINICAL STUDY ON ANCHORAGE CONTROL OF MOLAR ANCHORING SPRING(MAS) DURING RETRACTION OF THE MAXILLARY CANINE
김선민, 이준노, 노준, 전윤식,
소속 상세정보
김선민 ( ) - 이화여자대학교 의과대학 치과학교실
이준노 ( ) - 이화여자대학교 의과대학 치과학교실
노준 ( ) - 이화여자대학교 의과대학 치과학교실
전윤식 ( ) - 이화여자대학교 의과대학 치과학교실
KMID : 0361919980280020269
Abstract
In maxillary canine retraction by means of sliding mechanics, we designed MAS(molar anchoring spring) to prevent anchorage loss and uncontrolled tipping of tooth movement and have applied it in clinical cases.
The anchorage control of the maxillary first molar and type of tooth movement of the maxillary canine were studied in 31 subjects. The measurements were made on cephalograms, orthopantomograms and dental casts.
The obtained results were as follows.
1. In case of the maxillary first molar, there was a little sagittal anchorage loss, but there was no vertical & transverse anchorage loss.
2. In case of the maxillary canine, there was distal tipping movement and also there was a little intrusion tendency.
키워드
마찰견인법;저항원상실;조절되지못한 경사이동;MAS(Molar Anchoring Spring);Molar Anchoring Spring(MAS);sliding mechanics;anchorage control
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