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ECTOPIC ERUPTION OF MANDIBULAR FIRST PERMANENT MOLAR : A CASE REPORT

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À̱¤Èñ ( Lee Kwang-Hee ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
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±èÀ±Èñ ( Kim Yun-Hee ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
¹ÝÀçÇõ ( Ban Jae-Hyuk ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

À̼ҸÍÃâÀº Ä¡¾Æ°¡ ºñÁ¤»óÀûÀÎ À§Ä¡·Î ¸ÍÃâÇÏ´Â °æ¿ì¸¦ ¸»Çϸç, ÁÖ·Î »ó¾Ç Á¦1´ë±¸Ä¡, ÇÏ¾Ç ÃøÀýÄ¡, »ó¾Ç °ßÄ¡¿¡¼­ ¹ß»ýÇϸç ÇÏ¾Ç Á¦1´ë±¸Ä¡¿¡¼­´Â µå¹°°Ô ¹ß»ýÇÑ´Ù. Á¦1´ë±¸Ä¡ÀÇ À̼ҸÍÃâÀº ÈçÈ÷ Á¦2À¯±¸Ä¡ÀÇ ºñÁ¤»óÀûÀÎ Ä¡±ÙÈí¼ö¸¦ ¾ß±âÇϸç, À̸¦ ¹æÄ¡ÇÏ°Ô µÇ¸é Á¦2À¯±¸Ä¡ÀÇ Á¶±â»ó½Ç, Á¦1´ë±¸Ä¡ÀÇ ±Ù½É°æ»ç ¹× ȸÀü, Á¦2¼Ò±¸Ä¡ÀÇ ¸ÍÃâ °ø°£ ºÎÁ· ¹× ±³ÇÕ¹®Á¦ µîÀ» ¾ß±âÇÏ°Ô µÇ¹Ç·Î À̼ҸÍÃâ·Î Áø´ÜµÉ °æ¿ì Á¶±â Ä¡·á°¡ ÃßõµÈ´Ù. À̼ҸÍÃâÀº ´ë°³ Åë»óÀûÀÎ ¹æ»ç¼±°Ë»ç¸¦ ÅëÇØ ¹ß°ßµÇ³ª, °£È¤ Á¦2À¯±¸Ä¡ÀÇ Ä¡±ÙÈí¼ö°¡ ½ÉÇÒ °æ¿ì Ä¡¼ö°¡ °¨¿°µÇ¾î µ¿ÅëÀ» ¾ß±âÇÏ´Â °æ¿ìµµ ÀÖ´Ù. À̼ҸÍÃâÀÇ Ä¡·á´Â Á¦2À¯±¸Ä¡¸¦ º¸Á¸Çϸ鼭 Á¦1´ë±¸Ä¡ÀÇ ¸ÍÃâ ¹æÇâÀ» ¹Ù·Î Àâ¾Æ ÁÖ´Â °ÍÀ¸·Î Å©°Ô Ä¡°£ÀÌ°³(interproximal wedging)¿Í ¿ø½É°æ»çÀ̵¿(distal tipping)À» ÀÌ¿ëÇÑ ¹æ¹ýÀ» »ç¿ëÇÑ´Ù. º» Áõ·ÊµéÀº ÇÏ¾Ç Á¦1´ë±¸Ä¡ÀÇ À̼ҸÍÃâÀ» º¸À̴ ȯ¾Æµé·Î, Humphrey appliance¿Í Halterman appliance¸¦ ÀÌ¿ëÇÏ¿© ¾çÈ£ÇÑ Ä¡·á °á°ú¸¦ ¾ò¾ú±â¿¡ º¸°íÇÏ´Â ¹ÙÀÌ´Ù.

Ectopic eruption is caused by an abnormal direction of eruptive path, most common in maxillary first molar, mandibular lateral incisor, and maxillary canine, and sometimes mandibular first molar. Ectopic eruption of first molar leads to abnormal root resorption of second deciduous molar, which, if left untreated, could cause premature loss of second deciduous molar; mesial tilting and rotation of first permanent molar; lack of space for eruption of second premolar; and occlusal problems. Therefore early treatment is advised when diagnosed as ectopic eruption. Treatment of ectopic eruption in the first permanent molar involves providing proper guidance for the direction of eruption using interproximal wedging and distal tipping methods while preserving second deciduous molar. This case report shows satisfactory results of the ectopic eruption of mandibular first molars in young patients who were treated with Humphrey appliance and Halterman appliance.

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ÇÏ¾Ç Á¦1´ë±¸Ä¡;À̼ҸÍÃâ;¿ø½É°æ»çÀ̵¿
Mandibular first permanent molar;Ectopic eruption;Distal tipping;Humphrey appliance;Halterman appliance

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