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ARREST OF REET DEVELOPMENT AFTER SURGICAL REPOSITIONING OF THE INVERTED MAXILLARY CENTRAL INCISOR : CASE REPORT

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ÀÌÁ¦È£ ( Lee Jae-Ho ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

»ó¾Ç ÁßÀýÄ¡ÀÇ ¸Åº¹Àº ¼Ò¾Æ ȯÀÚÀÇ ½É¹ÌÀû »çȸÀû ±â´ÉÀû ¹®Á¦¸¦ ÀÏÀ¸Å³ ¼ö ÀÖ¾î ÀûÀýÇÑ Ä¡·á¸¦ ÅëÇØ ¹Ù·ÎÀâ¾Æ ÁÖ¾î¾ß ÇÑ´Ù. »ó¾Ç ÁßÀýÄ¡ ¸Åº¹ÀÇ Ä¡·á·Î ¿Ü°úÀû ³ëÃâ ÈÄ ±³Á¤Àû °ßÀÎÀÌ ¾î·Á¿ï °æ¿ì ¹ßÄ¡Çϱ⿡ ¾Õ¼­ ¿Ü°úÀû ÀçÀ§Ä¡(surgical repositioning) ȤÀº Ä¡Á¶ ³» ÀÚ°¡Ä¡¾ÆÀ̽Ä(intra-alveolar autotransplantation)À» °í·ÁÇØ º¼ ¼ö ÀÖ´Ù.

º» Áõ·Ê´Â 5¼¼ 9°³¿ù µÈ ³²¾ÆÀÇ ¿ªÀ§ ¸Åº¹µÈ »ó¾Ç ¿ìÃø ÁßÀýÄ¡¸¦ Ä¡±Ù ¹ßÀ° ÃʱâÀÎ Nolla¡¯s stage 6.5¿¡ ºÎºÐ ¸ÍÃâµÈ À§Ä¡·Î ¿Ü°úÀû ÀçÀ§Ä¡¸¦ ½ÃÇàÇÏ¿© ÀÚ¹ßÀû ¸ÍÃâÀ» ±â´ëÇÏ¿´À¸³ª 21°³¿ù °£ÀÇ ÃßÀû °Ë»ç °á°ú Ä¡°ü ¹ßÀ° ¹× ¸ÍÃâÀÌ Á¤ÁöµÈ Áõ·ÊÀÌ´Ù. ±× ¿øÀÎÀ¸·Î¼­ ¼ö¼ú ½Ã Ä¡¹è¸¦ ¹ß°ÅÇÏ°í Ä¡Á¶¿Í¸¦ ÀûÇÕÇÏ´Â °úÁ¤¿¡¼­ Hertwig¡¯s epithelial root sheath(HERS)°¡ ¼Õ»ó ¹Þ¾Ò±â ¶§¹®À¸·Î »ý°¢µÈ´Ù.

¸Åº¹ Ä¡¾ÆÀÇ ¿Ü°úÀû ÀçÀ§Ä¡ ½Ã¿¡´Â º» Áõ·Ê¿Í °°ÀÌ ÇÕº´Áõ ¹ß»ý °¡´É¼ºÀÌ ÀÖÀ¸¹Ç·Î ½ÅÁßÇÑ ÀûÀÀÁõÀÇ ¼±ÅÃ, Ä¡±Ù ¹ß´Þ Á¤µµ¸¦ °í·ÁÇÑ ÀûÀýÇÑ Ä¡·á ½Ã±âÀÇ °áÁ¤, ÃÖ¼ÒÇÑÀÇ ¼Õ»óÀ» ÁÖ´Â ¿Ü°úÀû ¼ú½Ä µîÀÇ ³ë·ÂÀÌ ÇÊ¿äÇÒ °ÍÀÌ´Ù.

Impaction of the maxillary central incisor may cause social, esthetic, and functional problems in children. There are various means of treatment for the inverted maxillary central incisor, such as extraction, surgical opening followed by orthodontic traction, surgical repositioning or intra-alveolar autotransplantation prior to extraction.

In this case, we surgically repositioned the inverted maxillary central incisor to normal semi-erupted position in a 5-year-old boy. The developmental stage of the inverted tooth was Nolla¡¯ s 6.5, which indicates formation of less than one third of the root. After surgical reposition, we did follow-up for 21 months, expecting spontaneous growth. Unfortunately, poor prognosis was noted : further root was not observed. Such failure seems to originate from possible injury on Hertwig¡¯ s epithelial root sheath by surgical trauma.

We performed surgical repositioning to retain the tooth instead of extraction. However, arrest of root development occurred, which is one of the critical complications. In order to increase the success rate of the surgical reposition procedure, minimal surgical trauma is required as well as selection of adequate indication and decision of proper time of treatment considering the stage of root development

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¿Ü°úÀû ÀçÀ§Ä¡; ÀÚ°¡Ä¡¾ÆÀ̽Ä; ¿ªÀ§ ¸Åº¹; »ó¾Ç ÁßÀýÄ¡; Ä¡±Ù ¹ßÀ° Á¤Áö
Surgical repositioning; Tooth autotransplantation; Inverted impaction; Maxillary central incisor; Arrest of root development

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