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TREATMENT OF BILATERAL ECTOPIC ERUPTION OF THE FIRST PERMANENT MOLARS

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¿À¹ÌÈñ ( Oh Mee-Hee ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
À̼ö¾ð ( Lee Soo-Eon ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÃÖ¼ºÃ¶ ( Choi Sung-Chul ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±è±¤Ã¶ ( Kim Kwang-Chul ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
ÃÖ¿µÃ¶ ( Choi Young-Chul ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
¹ÚÀçÈ« ( Park Jae-Hong ) - °æÈñ´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

Á¦1´ë±¸Ä¡ÀÇ À̼ҸÍÃâÀº Ä¡¾Æ°¡ ºñÁ¤»óÀû À§Ä¡·Î ¸ÍÃâÇÏ´Â °æ¿ì¸¦ ¸»Çϸç ÀÌ °æ¿ì Á¦2À¯±¸Ä¡ ¿ø½É¸éÀÇ ºñÁ¤»óÀû Á¶±âÈí¼ö¸¦ ¾ß±âÇÑ´Ù. Á¦1´ë±¸Ä¡ÀÇ À̼ҸÍÃâÀº Àα¸ÀÇ 3~4% Á¤µµ¿¡¼­ ³ªÅ¸³ª¸ç ÁÖ·Î »ó¾Ç¿¡¼­ È£¹ßÇÑ´Ù. À̼ҸÍÃâÇÑ Ä¡¾ÆÀÇ 66% Á¤µµ´Â º°´Ù¸¥ Ä¡·á ¾øÀÌ ÀÚ¹ßÀûÀ¸·Î ¸ÍÃâ °æ·Î¸¦ °³¼±Çϴµ¥ ¹ÝÇØ ºñ°¡¿ªÀû À̼ҸÍÃâÀÇ °æ¿ì¿¡´Â ´Éµ¿Àû Ä¡·á°¡ ÇÊ¿äÇÏ´Ù. Ä¡·á ¹æ¹ýÀº Å©°Ô µÎ °¡Áö·Î ³ª´­ ¼ö ÀÖ´Ù: Ä¡°£ÀÌ°³¿Í ¿ø½É°æ»ç. Ä¡°£ÀÌ°³´Â ¸Åº¹ Á¤µµ°¡ ÃÖ¼ÒÀÎ °æ¿ì ½ÃÇàÇÒ ¼ö ÀÖÀ¸¸ç, ¸Åº¹ÀÌ ½ÉÇÑ °æ¿ì¿¡´Â ¿ø½É°æ»ç°¡ ÇÊ¿äÇÏ´Ù. ÇöÀç±îÁöÀÇ ´ëºÎºÐÀÇ º¸°íµéÀº ÆíÃø¼º À̼ҸÍÃâÀÇ Ä¡·á¹æ¹ý¿¡ ´ëÇØ ´Ù·ç¾úÀ¸¸ç ¾çÃø¼º À̼ҸÍÃâÀÇ Ä¡·á¿¡ °üÇÑ º¸°í´Â ¸¹Áö ¾Ê´Ù. º» Áõ·ÊµéÀº ¾çÃø¼º Á¦1´ë±¸Ä¡ À̼ҸÍÃâÀ» º¸À̴ ȯ¾Æµé·Î modified bilateral Halterman appliance¸¦ ÀÌ¿ëÇÏ¿© ¾çÈ£ÇÑ Ä¡·á°á°ú¸¦ ¾ò¾ú±â¿¡ À̸¦ º¸°íÇÏ´Â ¹ÙÀÌ´Ù.

Ectopic eruption of the first permanent molar is an abnormal positioning of this tooth, causing a premature resorption of the distal surface of the second primary molar. It occurs in approximately 3~4% of the population and the maxillary arch is usually affected. While 66% of ectopically erupting permanent molars are corrected spontaneously without treatment (i.e. a reversible type), active treatment is necessary for irreversible ectopic eruption cases. The treatment modalities have been divided into two categories: interproximal wedging and distal tipping. Interproximal wedging is indicated for minimal impaction and when the impaction is severe, distal tipping techniques are required. Although much has been written about treatment modalities on unilateral ectopic eruption of the first permanent molar, few reports mention bilateral ectopic eruption cases. In this report, two cases of bilateral ectopic eruption of the first permanent molars in young patients are presented. We describe the use of a modified bilateral Halterman appliance for correction of these cases and the clinical results were satisfactory.

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¾çÃø¼º À̼ҸÍÃâ; Á¦1´ë±¸Ä¡
Bilateral ectopic eruption; First permanent molar; Modified bilateral Halterman appliance

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