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KMID : 0376319950070010431
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Dental Journal of CNU
1995 Volume.7 No. 1 p.431 ~ p.442
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A study of the skeletal maturity stages of the hand-wrist and the tooth calcifications stage in subjects with normal occlusion and Class III malocclusion
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Abstract
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To investigate the relationship between the calcification stages of mandibular canines and the skeletal maturity stage of the hand-wrist in subjects with normal occlusion and Class III malocclusion, hand-wrist radiographs and panoramic
radiographs
were
taken from subjects of normal occlusions (94 males. 88 females) and Class III malocclusions (75 males, 76 females) who had no systemic diseases and no history of orthodontic or prosthodontic treatment.
Fishman's method for the skeletal maturity stages of the hand-wrist and Demirijian's method for the calcification stages of mandibular canines were used and analysed.
@ES The results were as follows:
@EN 1. In subjects with normal occlusion and Class III malocclustion, skeletal maturity of the hand-wrist and calcification of mandibular canines at various ages occured earlier in females than in males(p<0.05).
2. comparing the skeletal maturity stages of the hand-wrist and the calcification stages of mandibulfar canines between subjects with normal occlusion and Class III malocclusion, there were no significant differences between the groups.
3. The correlation coefficient between the calcification stages of mandibular canines and the skeletal maturity stages of the hand-wrist in subjects with normal occlusion and Class III malocclusion showed a high association (p<0.01).
4. In stage 4 of the skeletal maturity of the hand-wrist, the frequency distribution of calcification G stage among the various calcification stages was highest both in nomal occlusion and in subjects with Class III malocclusion. However, there
was no
significant difference in the frequency distribution of calcification stages between the groups.
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