’Y’ 국민학교 아동의 상악중절치 치간이개증에 관한 연구
A STUDY ON MAXILLARY MEDIAN DIASTEMA OF ’Y’ PRIMARY SCHOOL CHILDREN
한세현,
소속 상세정보
한세현 ( Hahn Se-Hyun ) - 서울대학교 치과대학 소아치과학교실 및 치의학연구소
KMID : 0362719810190121039
Abstract
The author surveyed on maxillary median diastema of 1440 (male: 740, female:700) ’Y’ primary school children aged from 6 to 12 and obtained the following results. 1. The prevalence of maxillary median diastema was 16.08% in male, 14.00% in female and 15.07% in both sexes. 2. The prevalence of maxillary median distema showed the highest rate in 8 years old children (male: 29.55%, female: 34.83%) and it showed decreasing tendency according to increasing age. 3. The prevalence of mesiodens was 0.79% and boys had higher rate than girls. 4. Mean value of ’Divergent degree’ was 20.6mm in male, 20.5mm in female and mean value of ’Frenum distance’ was 4.08mm in male, 41.1mm in female.
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