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KMID : 0358919760030010048
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Journal of the Korean Academy of Pedodontics
1976 Volume.3 No. 1 p.48 ~ p.51
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A STUDY ON DEVELOPMENT OF CROWN PERMANENT TEETH BY OBLIQUE CEPHALOGRAM
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Abstract
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Surveying the developmental degree of the crowns of-mandibular first bicuspid
in 566 korean children (264 males and 302 females) from 3 to 7 years of age by
-oblique cephalogram, the author got to the following results.
I. The developmental degree of the tooth crown of mandibular first bicuspid
was earlier in female than in male.
2. The period of.complete development of the crown of mandibular first bicuspid was 7 year I month in male and 6 year 3 month in female.
3. There was no significant difference in the period of complete development of the tooth crown compared with that of Japanese and American children.
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KEYWORD
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