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Additional Root of the Primary Maxillary Second Molar Possibly Associated with Displacement and Rotation of the Permanent Successor : Two Case Reports

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±¸Àç¿ø ( Ku Jae-Won ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÀÌÁ¦¿ì ( Lee Je-Woo ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
¶óÁö¿µ ( Ra Ji-Young ) - ¿ø±¤´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

»ó¾Ç Á¦2À¯±¸Ä¡ÀÇ ºÎ°¡Ä¡±ÙÀº µå¹°°Ô °üÂûµÈ´Ù. º» Áõ·Êº¸°í¿¡¼­´Â µÎ Áõ·Ê¸¦ ÅëÇØ »ó¾Ç Á¦2À¯±¸Ä¡ÀÇ ºÎ°¡Ä¡±Ù°ú ÇÏ¹æ ¿µ±¸ °è½ÂÄ¡ÀÇ º¯À§ ¹× ȸÀüÀÌ ¿¬°üµÇ¾úÀ» °¡´É¼º¿¡ ´ëÇØ ³íÀÇÇÏ¿´´Ù. »ó¾Ç Á¦2À¯±¸Ä¡ÀÇ Ä¡°ü ÇüŸ¦ °üÂûÇÔÀ¸·Î½á ºÎ°¡Ä¡±ÙÀÇ Á¸Àç °¡´É¼ºÀ» ÀǽÉÇÒ ¼ö ÀÖÀ¸¸ç, ºÎ°¡Ä¡±ÙÀÌ Á¸ÀçÇÏ´Â °æ¿ì ¿µ±¸ °è½ÂÄ¡ÀÇ ¸ÍÃâ ¾ç»óÀ» ÁÖÀÇ ±í°Ô °üÂûÇØ¾ß ÇÒ ÇÊ¿ä°¡ ÀÖÀ» °ÍÀ¸·Î »ç·áµÈ´Ù. ¸¸¾à ¼Ò±¸Ä¡ Ä¡¹è°¡ ºñÁ¤»óÀûÀÎ ¸ÍÃâ ¾ç»óÀ» º¸ÀÎ´Ù¸é ¼±Çà À¯Ä¡ÀÇ Á¶±â ¹ß°Å ¹× °ø°£À¯Áö°¡ º¸Á¸ÀûÀÎ Ä¡·á¹ýÀÌ µÉ ¼ö ÀÖ´Ù.

An additional root of the primary maxillary second molar is rarely observed. Two cases are presented herein, and we discuss a possible association between additional root of the primary maxillary second molar and displacement and rotation of the permanent successor. Investigation of crown morphology enables the detection of a potential additional root of the primary maxillary second molar, and eruption of the permanent successor needs to be examined carefully if an additional root is present. Early extraction of primary molar and space maintenance can be used as a conservative treatment if the premolar germ shows an abnormal eruption pattern.

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ºÎ°¡Ä¡±Ù ; À¯±¸Ä¡ ; ¼Ò±¸Ä¡ Ä¡¹è ; º¯À§ ; ȸÀü
Additional root ;Primary molar ;Premolar germ ;Displacement ;Rotation

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