하악과성장형과 상악열성장형 골격성 Ⅲ급 부정교합군간의 두개저 형태 비교
COMPARISON OF CRANIAL BASE MORPHOLOGY BETWEEN THE MANDIBULAR PROGNATHISM AND MAXILLARY RETROGNATHISM IN SKELETAL CLASS Ⅲ PATIENTS
강동화, 권태건, 이상한, 김현수,
소속 상세정보
강동화 ( Kang Dong-Hwa ) - 경북대학교 치과대학 구강악안면외과학교실
권태건 ( Kwon Tae-Geon ) - 경북대학교 치과대학 구강악안면외과학교실
이상한 ( Lee Sang-Han ) - 경북대학교 치과대학 구강악안면외과학교실
김현수 ( Kim Hyun-Soo ) - 포천중문의과대학 치과 구강외과학교실
KMID : 0355620070330030204
Abstract
This study was intended to compare the cranial base morphology between the mandibular prognathism and maxillary retrognathism in skeletal class Ⅲ patients. The subject of the present study was composed of 88 patients divided into two groups; Group 1 (Skeletal Class Ⅲ with mandibular prognathism. SNA within normal range, SNB over normal range, n＝54) and Group 2(Skeletal Class Ⅲ with maxillary retrognathism. SNA below normal range, SNB within normal range, n＝34). Lateral cephalogram were taken immediate before surgery and 18 landmarks were used to analyze the characteristics of cranial base and maxillomandibular skeleton.
The result revealed that cranial base angle is significantly smaller in Group 1 than Group 2, which implies the influence of the cranial base angulation on the mandibular position. However the posterior cranial base length did not influence the mandibular horizontal position and anterior cranial base length did not influence the maxillary horizontal position. As the anterior cranial base length was closely related with ramal height, it is recommendable to investigate the regulatory mechanism of chondrogenesis of cranial base and condyle cartilage in the future research.
키워드
Cranial base;Skeletal class Ⅲ;Mandibular prognathism;Maxillary retrognathism
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