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The Study Of Primary Dentition

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±èÁøÅÂ(ÑÑòå÷Á)/Jin Tae Kim

Abstract

êáöÍïáßÈÎáùêÀÇ öÍæêÜÁêóä®ÔÛÀÇ à´ÍÇÙ¼úþ 87çÓ (Ñû 519%, åü 36çÓ)¿¡¼­ êáîñöÍ öÍæêÏáÀÇ
û¡÷¾îÜÀΠضÍØÀ» κóÌÇÏ°íÀÚ ðàÞÛÇÑ ¹Ù ´ÙÀ½°ú °°Àº Ì¿Íý¸¦ ¾ò¾ú´Ù. .
1. êáîñöÍöÍæêÏáÀÇ Ø¶ÍØÀº ÓÞ ·Î å÷͵¸¦ ÀÌ·ç°í ÀÖ¾ú´Ù.
2. êáöÍÀÇ îñöÍæêÀÇ å÷͵ÀÇ ÚâÌÓÀº ß¾äÉ 17.96mm ù»äÉÀº 15.07mmÀ̾ú´Ù.
3. êáîñöÍöÍæêÏáÀÇ å÷͵¿¡ ÓßÇÑ êáö°ï·öÍÀÇ âîàßîÜ êÈöÇμÌõ´Â ß¾äÉ¿¡¼­´Â 0.14m, å÷êÌ¿¡¼­
Ò®ö°¿¡ ÀÖ¾ú°í ù»äÉ¿¡¼­´Â 0.05-0.09mm èâö°¿¡ ÀÖ¾ú´Ù.
4. êáîñöÍöÍæêÏáÀÇ å÷͵¿¡ ÓßÇÑ êá̳öÍÀÇ âîàßîÜ êÈöÇμÌõ´Â ß¾äÉ¿¡¼­´Â °ÅÀÇ å÷͵߾¿¡ ÀÖ
¾ú°í ù»äÉ¿¡¼­´Â 0.2¡­0.3mm âîö°ÀÎ èâö°¿¡ ÀÖ¾ú´Ù.
#ÃÊ·Ï#
The materials were 87 dental cants of 3 and 4-year-old children with normal occlusion.
Arch forms and sizes of primary anterior dentition were measured on tracing papers.
The following conclusions were obtained from the investigation.
1. The arch form of primary dentition was a partial circle.
2. The average radius of primary anterior arch was 17.96mm in maxilla and 15.07mm in
mandible.
3. Primary lateral incisors were 0.14mm inward from the arch in maxilla dentition and
0.05-0.09mm outward from the arch in mandible dentition.
4. Primary cuspids were almost on the arch in maxilla dentition and 0.2-0.3mm outward
from the arch in mandible dentition.

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