한국인 하악전돌증환자의 유전적 영향과 유전율에 대한 분석
Genetic influence and heritability in mandibular prognathism of Korean families
김영호, 조한영, 백채환, 이아영, 김군종, 김휘영, 서영주, 백승학, 홍종락, 팽준영,
소속 상세정보
김영호 ( Kim Young-Ho ) - 성균관대학교 의과대학 삼성서울병원 치과진료부 교정과
조한영 ( Cho Han-Young ) - 성균관대학교 의과대학 삼성서울병원 교정과학교실
백채환 ( Baek Chae-Hwan ) - 성균관대학교 의과대학 삼성서울병원 구강악안면외과
이아영 ( Lee Ah-Young ) - 성균관대학교 의과대학 삼성서울병원 교정과학교실
김군종 ( Kim Gun-Jong ) - 성균관대학교 의과대학 삼성서울병원 구강악안면외과
김휘영 ( Kim Whi-Young ) - 삼성의료원 미래의학연구센터
서영주 ( Suh Young-Ju ) - 인하대학교 의학전문대학원 임상연구부
백승학 ( Baek Seung-Hak ) - 서울대학교 치의학전문대학원 교정학교실
홍종락 ( Hong Jong-Rak ) - 성균관대학교 의과대학 삼성서울병원 구강악안면외과
팽준영 ( Paeng Jun-Young ) - 성균관대학교 의과대학 삼성서울병원 구강악안면외과
KMID : 0355620100360060502
Abstract
Introduction: This study examined the genetic influence of mandibular prognathism epidemiologically in Korean families.
Materials and Methods : Over a 5-year period from 2005 to 2009, a questionnaire with a pedigree chart was given to 100 (male 51, female 49) probands with skeletal Class III mandibular prognathism, who had undergone orthognathic surgery in Samsung Medical Center.
Results:The average age of the probands was 22.1. The average SNA, SNB and ANB angles of the probands were 81.2, 84.1 and -2.9, respectively. A total of 2729 (male 1,354, female 1,375) family members were examined, and the affected ratio of the families was 3.5% with no significant difference between genders. 45% of families had at least one member with a Class III malocclusion other than the proband. The affected ratio of the first-degree relatives (10.9%) was significantly higher than those of the second-degree (3.3%) and third-degree (1.9%) relatives. The affected ratio of the total relatives from the male probands (4.2%) was significantly higher than that of the female probands (2.8%). Heritability (h2, Falconer’method) was estimated to be 29.8% (0.298±0.059) in first-degree relatives.
Conclusion: These results showed the significant influence of mandibular prognathism with relatively low heritability in first-degree relatives in Korean families of probands, who had undergone orthognathic surgery to correct a skeletal Class III malocclusion
키워드
Mandibular prognathism; Genetic influence; Epidemiologic investigation; Heritability
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