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DOUBLE TEETH IN MAXILLARY PERMANENT INCISORS : CASE REPORTS

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±è¹Ì´Ï ( Kim Mi-Ni ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò
±è¿µÀç ( Kim Young-Jae ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò
±èÁ¤¿í ( Kim Jung-Wook ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× ÀÓ»óÄ¡ÀÇÇבּ¸¼Ò
Àå±âÅà( Jang Ki-Taeg ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÁ¾Ã¶ ( Kim Chong-Chul ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÇѼ¼Çö ( Hahn Se-Hyun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç ¹× Ä¡Çבּ¸¼Ò
ÀÌ»óÈÆ ( Lee Sang-Hoon ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

µÎ °³ÀÇ Ä¡¾Æ°¡ Çϳª·Î ºÙÀº °Íó·³ º¸ÀÌ´Â °æ¿ì, ½Ö»ýÀÎÁö À¶ÇÕÀÎÁö ¿©ºÎ¸¦ °áÁ¤ÇÒ ¼ö ¾øÀ» °æ¿ì¿¡ ÀÌÁßÄ¡(double tooth)¶ó´Â ¿ë¾î¸¦ »ç¿ëÇÑ´Ù. ÀÌÁßÄ¡´Â À¯Ä¡¿¡ ´õ È£¹ßÇϳª ¿µ±¸Ä¡¿¡µµ ¾à 0.1% ¹ß»ýÀ²À» º¸ÀÌ¸ç ½É¹ÌÀûÀÎ ¹®Á¦¿Í ¿ì½ÄÀÇ È£¹ß, Ä¡ÁÖÀû ¹®Á¦, Ä¡¿­ÀÇ ¹®Á¦¸¦ º¸ÀÏ ¼ö ÀÖ´Ù. ÀÌ·¯ÇÑ ÀÌÁßÄ¡ÀÇ Ä¡·á´Â ¿©·¯ Àü¹® ºÐ¾ßÀÇ ÇùÁøÀ» ÇÊ¿ä·Î ÇÑ´Ù. ¿ì¼±, ¼øÃø°ú ±¸°³ÃøÀÇ Á߽ɱ¸´Â Ä¡¾Æ¿ì½Ä¿¡ ¹Î°¨ÇϹǷΠÁ¶±â¿¡ ¿­±¸¸¦ Àü»öÇÏ´Â °ÍÀÌ ÇÊ¿äÇϸç, ¿µ±¸ Ä¡¿­¿¡¼­´Â À¶ÇÕÄ¡¸¦ ¿Ü°úÀûÀ¸·Î ±¸°­ ³» ¶Ç´Â ±¸°­ ¿Ü¿¡¼­ ºÐ¸®ÇÑ ÈÄ ±³Á¤ÀûÀ¸·Î ¹è¿­ÇÒ ¼ö ÀÖÀ¸¸ç, Ä¡°ü ¸ð¾çÀ» ´Ùµë±â À§ÇÏ¿© ¼öº¹ Ä¡·á°¡ ÇÊ¿äÇÒ ¼ö ÀÖ´Ù. ÇÑ °³ÀÇ ±Ù°üÀ» °¡Áø °æ¿ì´Â ¼ø¸é±¸ÀÇ ¸ð¾çÀ» ´Ùµë°í, ±Ù¿ø½É Å©±â¸¦ °¨¼Ò½ÃŲ ÈÄ º¹ÇÕ·¹ÁøÀ» Àû¿ëÇÏ´Â ¹æ¹ýµµ ÀÖÀ¸³ª ºÒ°¡ÇÇÇÏ°Ô ¹ßÄ¡ÇØ¾ß ÇÏ´Â °æ¿ìµµ ÀÖ´Ù. ÀÌ °æ¿ì ±³Á¤ ¹× º¸Ã¶ Ä¡·á°¡ ÇÊ¿äÇϸç ÀÓÇöõÆ® ¸Å½Ä¼úµµ °í·ÁµÈ´Ù. ±×·¯³ª ÀÌ·¯ÇÑ Ä¡·áÀÇ ¼±ÅÃÀº ÀÓ»óÀû »óȲ¿¡ ¸ÂÃß¾î ÀÌ·ç¾îÁ®¾ßÇÑ´Ù. À̹ø Áõ·Êµé¿¡¼­µµ ½É¹ÌÀûÀÎ ¹®Á¦¿Í ±³ÇÕÀÇ ¹®Á¦¸¦ ¹ß°ßÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ù ¹ø° Áõ·Ê¿¡¼­´Â ÀÌ·± ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇÏ¿© ±³Á¤Àû, ±Ù°üÄ¡·á, ·¹Áø ¼öº¹¼ú, ¿Ü°úÀûÀÎ ±¸°­³» ÀýÁ¦¼úÀ» ÀÌ¿ëÇÏ¿© Ä¡·áÇÏ¿´À¸³ª, Ä¡±Ù´Ü Èí¼ö°¡ °üÂûµÇ¾ú´Ù. µÎ ¹ø°¿Í ¼¼ ¹ø° Áõ·Ê¿¡¼­´Â 3Â÷¿ø Àü»êÈ­ ´ÜÃþ ÃÔ¿µÀ» ÀÌ¿ëÇÏ¿© Á¤È®ÇÑ Ä¡¾ÆÀÇ ³»ºÎ¿Í ¿ÜºÎ ±¸Á¶¸¦ ÆľÇÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ÀÏ¹Ý ¹æ»ç¼± »çÁøÀ¸·Î´Â ÆÇ´ÜÀÌ ¾î·Á¿î ±Ù°ü ºÐ¸® ¿©ºÎ¿Í ±Ù°üÀÇ À¶ÇÕ Á¤µµ¿Í À¶ÇÕ À§Ä¡ µîÀ» Áø´ÜÇÒ ¼ö ÀÖ¾ú´Ù.

Fusion and gemination are irregularities in tooth development. It is often difficult to differentiate between gemination and fusion and it is common to refer to these anomalies as ¡¯double teeth¡¯. The deciduous teeth are most commonly involved, but in 0.1% of cases permanent teeth are affected, in which case aesthetic, funtional and periodontal problems can result. Double teeth present great difficulties in management and required a multidisciplinary approach. The central groove on the labial and palatal surfaces of a double tooth is extremely prone to caries, therefore early ¡¯fissure sealing¡¯ is essential. In permanent dentition, surgical separation of fused teeth may be possible with subsequent orthodontic alignment and restorative treatment as needed to reshape the crown. Reshaping or reduction of a double tooth with a single canal may be attempted by modifying the appearance of the labial groove and the use of composite tints but is often impossible and extraction may be the only alternative. Orthodontic treatment and prosthetic replacement is then required. Implants may be an option for adolescents. The present study describes three clinical cases of double teeth in the position of the maxillary permanent incisors. The first case demonstrates an example of multidisciplinary care including surgical intraoral hemisection, root canal therapy, restorative and orthodontic treatment. The second and third cases describe the external and internal morphology of the two fused teeth by means of three dimensional dental computer tomography.

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ÀÌÁßÄ¡; À¶ÇÕ; ÆíÃøÀýÁ¦¼ú; 3Â÷¿ø Àü»êÈ­ ´ÜÃþÃÔ¿µ; »ó¾ÇÀüÄ¡
Double tooth; Fusion; Hemisection; 3 dimensional dental computer tomography; Maxillary anterior teeth

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