| 상악중절치 치간이개증에 관한 연구 (II) |
|
한세현 |
|
서울대학교 치과대학 소아치과학교실 |
| A Study on the Maxillary Median Diastema (II) |
|
Se-Hyeon Han |
|
Dept. of Pedodontics, College of Dentistry, Seoul National University |
|
|
| Abstract |
|
The author surveyed on the maxillary median diastema of 1,686(male; 850, female; 836) 'H' and 'K' primary school children aged from 6 to 13. The results were as follows :
1. The prevalence of the maxillay median diastema was 12.6% in male, 7.9% in female and 10.3% in both sexes.
2. The prevalence of the maxillary median diastema showed the highest rate in 9 years old boys and 8 years old girls, and it showed decreasing tendency according to increasing age.
3. The prevalence of mesiodens was 0.6% and boys had higher rate than girls.
4. Mean value of 'Frenum Distance' was 5.8mm in male, 5.7mm in female and mean value of 'Divergent Degree' was 2.0mm in male, 1.6mm in female. |
|
PDF Links
Download Citation
