골격성 Ⅲ급 부정교합자의 두 개안모 성장예측에 대한 평가

손홍주; 강은희; 정미라; 성지현

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골격성 Ⅲ급 부정교합자의 두 개안모 성장예측에 대한 평가
Evaluation of craniofacial growth prediction method on Class Ⅲ malocclusion patients

Korean Journal of Orthodontics 2003년 33권 1호 p.31 ~ 39

손홍주, 강은희, 정미라, 성지현,

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손홍주 (  ) - 부산대학교 치과대학 교정학교실
강은희 (  ) - 부산대학교 치과대학 교정학교실
정미라 (  ) - 부산대학교 치과대학 교정학교실
성지현 (  ) - 부산대학교 치과대학 교정학교실

KMID : 0361920030330010031

Abstract

This study was performed to evaluate whether growth prediction method can be used to diagnose and make treatment plan in skeletal Class III malocclusion patients or not The sample was consisted of 25 patients(13 males, 12 females) who had been diagnosed with skeletal Class III malocclusion at first visit and after that had returned to take orthognathic surgery. Growth prediction performed with Ricketts´ growth´ prediction method from first cephalogram was compared with actual growth of the second cephalogram.

The findings of this study were as follows ;

1. There was significant difference between actual growth and growth prediction in Potion Location, Ramus Position, Facial Depth, Facial Axis, Mandibular Plane angle, Maxillary Convexity. So, for these items Ricketts´ growth prediction method is not proper to predict growth.
2. Although the growth amount of mandibular body was similar to normal growth amount, mandible was positioned anteriorly because-of Potion Location and Ramus Position.
3. In skeletal Class III malocclusion patients, the tendency of mandibular prognatbism might be aggreviated because. of anterior placement of rarnus and anterosuperior rotation of pogonion.