한국인 하악전돌증환자의 유전적 영향과 유전율에 대한 분석 (Genetic influence and heritability in mandibular prognathism of Korean families)

서지정보

· 발행기관 : 대한구강악안면외과학회
· 수록지 정보 : 대한구강악안면외과학회지 / 36권 / 6호 / 502 ~ 507페이지
· 저자명 : 김영호, 조한영, 백채환, 이아영, 김군종, 서영주, 백승학, 홍종락, 팽준영, 김휘영

초록

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, 84.1and -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

영어초록

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, 84.1and -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

참고자료

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