골격성 부정교합이 없는 한국 성인의 손가락 길이에 관한 연구
A study in the finger length of Korean adults with no skeletal abnormality
- 주제(키워드) 성호르몬 , 손가락 성장 , 손가락 길이의 비율 , sex hormone , finger growth , digit ratio
- 발행기관 江陵原州大學校 大學院
- 지도교수 車鳳勤
- 발행년도 2009
- 학위수여년월 2009. 8
- 학위명 석사
- 학과 및 전공 齒醫學科
- 원문페이지 17 p.
- 본문언어 한국어
초록/요약
It was already reported that sex hormone largely affects the growth of finger as well as the craniofacial growth. Cha et al also suggested that the skeletal class Ⅲ malocclusion would be closely relevant to the discrepancy of finger length. This study is aimed to evaluate the Cha's concept by measuring the finger length of Korean normal adults. Total 102 Korean adult subjects who have no skeletal abnormality (0˚<ANB<4˚) were chosen randomly, included 46 males in the average of 25.2 years old, ranged 18~42, and 56 females in the average of 26.3 years old, ranged 18~46. The length of second finger (D2) and fourth finger (D4) in both side hands was measured using digital caliper, and statistically analyzed using t-test and Dahlberg's formula. Depending on the finger length difference between D2 and D4, the finger growth was classified in type Ⅰ (D4>D2), type Ⅱ(D4=D2) and type Ⅲ(D4<D2). Resultantly, the length of left and right finger (D2 and D4) were almost same both in the male and female groups (p<0.05). But the ratio of D2 and D4 length was clearly different between male and female groups, i.e., 1.0474±0.0342 and 1.0294±0.0365, respectively. However, type Ⅰ is most common both in male and female groups. Type Ⅲ was not found in male group examined in this study, while it was significantly frequent in female group up to 8.9%. Although the biological mechanism of sex hormone influencing the finger growth of human was not clearly known, the present study suggests that the sex hormone difference in male and female may produce the discrepancy of D2 and D4 length. Taken together, it is presumed that the discrepancy of D2 and D4 length is an important clue to understand the growth potential of craniofacial structure and to predict a skeletal abnormality of jaw.
more