A STUDY ON THE MAXILLARY MEDIAN DIASTEMA (III)

Hahn,  Se-Hyun

J Korean Dent Assoc > Volume 22(8); 1984 > Article

The Journal of The Korean Dental Association 1984;22(8):699-703.
Published online August 31, 1984.

상악중절치 치간이개증에 관한 연구 (III)

한세현

서울대학교 치과대학 소아치과학교실

A STUDY ON THE MAXILLARY MEDIAN DIASTEMA (III)

Se-Hyun Hahn

Dept. of Pedodontics, College of Dentistry, Seoul National University

Abstract

The author surveyed on the maxillary median diastema of 1,522 (male: 805, female:717) 'H' and 'K' primary school children aged from 6 to 13. The results were as follows: 1. The prevalence of the maxillary median diastema was 11.6% in male, 7.5% in female and 9.7% in both sexes. 2. The prevalence of the maxillary median diastema showed the highest rate in 8 years old boys and girls, and it showed decreasing tendency according to increasing ago. 3. The prevalence of mesiodens was 0.4%, and boys had higher rate than girls. 4. Mean value of 'Frenum Distance' was 5.7mm in male, 5.5mm in female and mean value of 'Divergent Degree' was 2.0mm in male, 1.6mm in female.