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KMID : 0362719810190121039
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Journal of the Korean Dental Association
1981 Volume.19 No. 12 p.1039 ~ p.1044
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A STUDY ON MAXILLARY MEDIAN DIASTEMA OF ’Y’ PRIMARY SCHOOL CHILDREN
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Hahn Se-Hyun
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Abstract
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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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KEYWORD
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