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TIMING AND SEQUENCE OF ERUPTION OF PERMANENT TEETH IN A SAMPLE OF CHILDREN FROM YONSEI DENTAL HOSPITAL

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ÃÖÇüÁØ ( Choi Hyung-Jun ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

Ä¡¾ÆÀÇ Á¤È®ÇÑ ¸ÍÃ⠽ñâ¿Í ±× ¼ø¼­´Â ¾î¸°ÀÌÀÇ ¹ßÀ° ¼º¼÷µµÀÇ ÁöÇ¥·Î¼­ ¼Ò¾ÆÄ¡°ú ÀÓ»ó ¹× ¿¹¹æ ±³Á¤Ä¡·á¿¡ À־ ¸Å¿ì Áß¿äÇÏ´Ù. ÀÌ¿¡ 2001~2003³â¿¡ ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇк´¿ø ¼Ò¾ÆÄ¡°ú¿¡ ³»¿øÇÑ ¾î¸°ÀÌÁß ¸¸ 5¼¼ºÎÅÍ ¸¸ 14¼¼±îÁöÀÇ ³²ÀÚ 654¸í, ¿©ÀÚ 542¸í, ÃÑ 1,196¸íÀÇ ÀڷḦ ¼öÁýÇÏ¿© ¿µ±¸Ä¡ÀÇ ¸ÍÃâ ½Ã±â ¹× ¼ø¼­¿¡ ´ëÇÑ ¿¬±¸ °á°ú ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.

1. »ó¾Ç ¿µ±¸Ä¡ÀÇ ¸ÍÃ⠽ñâ´Â ÁßÀýÄ¡ ³² ¸¸6.81¼¼, ¿© ¸¸6.78¼¼, ÃøÀýÄ¡ ³² ¸¸8.30¼¼, ¿© ¸¸7.98¼¼, °ßÄ¡ ³² ¸¸10.28¼¼, ¿© ¸¸10.04¼¼, Á¦1¼Ò±¸Ä¡ ³² ¸¸9.74¼¼, ¿© ¸¸9.90¼¼, Á¦2¼Ò±¸Ä¡ ³² ¸¸10.87¼¼, ¿© ¸¸10.41¼¼, Á¦1´ë±¸Ä¡ ³² ¸¸6.25¼¼, ¿© ¸¸6.54¼¼, Á¦2´ë±¸Ä¡ ³² ¸¸12.21¼¼, ¿© ¸¸12.03¼¼, ¿© ¸¸12.03¼¼¿´´Ù.

2. ÇÏ¾Ç ¿µ±¸Ä¡ÀÇ ¸ÍÃ⠽ñâ´Â ÁßÀýÄ¡ ³² ¸¸6.00¼¼, ¿© ¸¸6.06¼¼, ÃøÀýÄ¡ ³² ¸¸6.99¼¼, ¿© ¸¸6.74¼¼, °ßÄ¡ ³² ¸¸9.83¼¼, ¿© ¸¸9.17¼¼, Á¦1¼Ò±¸Ä¡ ³² ¸¸9.92¼¼, ¿© ¸¸9.75¼¼, Á¦2¼Ò±¸Ä¡ ³² ¸¸10.66¼¼, ¿© ¸¸10.39¼¼, Á¦1´ë±¸Ä¡ ³² ¸¸5.99¼¼, ¿© ¸¸5.75¼¼, Á¦2´ë±¸Ä¡ ³² ¸¸11.92¼¼, ¿© ¸¸12.17¼¼¿´´Ù.

3. ¿µ±¸Ä¡ÀÇ ¸ÍÃâ ¼ø¼­´Â »ó¾Ç¿¡¼­ Á¦1´ë±¸Ä¡, ÁßÀýÄ¡, ÃøÀýÄ¡, Á¦1¼Ò±¸Ä¡, °ßÄ¡, Á¦2¼Ò±¸Ä¡, Á¦2´ë±¸Ä¡ÀÇ ¼øÀ̾ú°í, ÇϾǿ¡¼­ Á¦1´ë±¸Ä¡, ÁßÀýÄ¡, ÃøÀýÄ¡, °ßÄ¡, Á¦1¼Ò±¸Ä¡, Á¦2¼Ò±¸Ä¡, Á¦2´ë±¸Ä¡ÀÇ ¼øÀ̾ú´Ù.

Accurate timing and sequence of eruption of permanent teeth are indicies of growth and essential for pediatric dentistry and pediatric clinical orthodontics. From the children brought to the Yonsei Dental Hospital during 2001 to 2003, 654 boys and 542 girls, ranging in age from five to fourteen years, were selected and analysed. The following was concluded.

1. Eruption time of maxillary teeth is 6.81 years in boys, 6.78 years in girls for central incisor, 8.30 years in boys, 7.98 years in girls for lateral incisor, 10.28 years in boys, 10.04years in girls for canine, 9.74 years in boys, 9.90 years in girls for first premolar, 10.87 years in boys, 10.41 years in girls for second premolar, 6.25 years in boys, 6.54 years in girls for first permanent molar, 12.21 years in boys, 12.03 years in girls for second permanent molar.

2. Eruption time of mandibular teeth is 6.00 years in boys, 6.06 years in girls for central incisor, 6.99 years in boys, 6.74 years in girls for lateral incisor, 9.83 years in boys, 9.17 years in girls for canine, 9.92 years in boys, 9.75 years in girls for first premolar, 10.66 years in boys, 10.39 years in girls for second premolar, 5.99 years in boys, 5.75 years in girls for first permanent molar, 11.92 years in boys, 12.17 years in girls for second permanent molar.

3. The following eruption sequence was observed: the first permanent molar erupted first, followed by the central incisor, the lateral incisor, the first premolar, the canine, the second premolar and the second permanent molar in the maxilla. The first permanent molar erupted first, followed by the central incisor, the lateral incisor, the canine, the first premolar, the second premolar and the second permanent molar in the mandible.

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Permanent teeth;Eruption time;Eruption sequence

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