The purpose of this study was to investigate the relationship of the development of teeth end the bone maturity of hand-wrist during pubertal growth period in Korean. The subjects ,Ned in this study were 295 children(male 147, female 148), ranging from 8 to 16 years of .W with good general health, none of whom had received orthodontic therapy. Panoramic radiographs and hand-wrist radiographs were used to evaluate the stage of teeth development and the bone maturity of hand-wrist and their relationship. The results were as follows
1. In bone maturity of hand-wrist, a d .finite trend toward acceleration among females Wae evident, and in tooth maturation, a definite trend toward acceleration among females was 2 evident in upper and lower canines
2. In stage 3 of bone maturity of hand-wrist(onset of pubertal growth), the percentage distribution of developmental stage G in lower canine was the most high(77%). The two g of the above were highly coincided with each other.
3. In spite of variety in correlation between teeth development and bone maturity of hand-wrist, there was the relatively close correlation in the lower first premolar in male(R=0.57) and the lower second premolar in female(R=0.73).
4. There was the highly close relationship between chronologic age and bone maturity of e hand -wrist(R =0.82 in male. R=0.84 in female).
However the correlation between chronologic age and teeth maturation was low, and different among various teeth (R =0.11-0.52).
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