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A STUDY ON THE DEVELOPMENT OF PERMANENT TEETH USING PANGRAMIC RADIOGRAPHS

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Abstract

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2. ¿©¼ºÀÌ ³²¼ºº¸´Ù, ±×¸®°í ÇϾÇÄ¡¾Æ°¡ »ó¾ÇÄ¡¾Æº¸´Ù ´Ù¼Ò ºü¸¥ °æÇâÀ» º¸¿´´Ù.
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Á¦ 2 ´ë±¸Ä¡ÀÇ ¼øÀ» ³ªÅ¸³Â´Ù.
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In order to study the stages of calcification on crown and roots using panoramic
radiographs, 1200 of children between the ages of 3 to 12 with normal growing tendency
and no orthodontic treatment experience were chosen among the patients who have
visited Yonsei Dental University and who live in Seoul and Kang-Won-Do.
Panoramic radiographs were taken by ordinary method and stages of calcification were
divided into 13 stages. Radiographs were evaluated according to sect, left and right
sides and also maxilla and mandible.
The results of this study were as follows:
1. The calcification of permanent teeth is faster than the past.
2. The calcification of permanent teeth tends to be faster in female than male and
also for mandible than maxilla.
3. The sequence of permanent teeth calcification is in order of first molar, central
incisor, lateral incisor, canine, first premolar, second premolar, and second molar.

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