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Spontaneous Eruption of a Dilacerated Mandibular Central Incisor after Trauma of a Primary Tooth : Two Case Reports

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ÀåÀº¿µ ( Jang Eun-Yeong ) - Kyungpook National University School of Dentistry Department of Pediatric Dentistry
ÀÌÁ¦½Ä ( Lee Jae-Sik ) - Kyungpook National University School of Dentistry Department of Pediatric Dentistry
³²¼øÇö ( Nam Soon-Hyeun ) - Kyungpook National University School of Dentistry Department of Pediatric Dentistry
±èÇöÁ¤ ( Kim Hyun-Jung ) - Kyungpook National University School of Dentistry Department of Pediatric Dentistry

Abstract

Ä¡¾Æ ¸¸°îÀº Ä¡¾ÆÀÇ Ä¡°üºÎ ȤÀº Ä¡±ÙºÎ¿¡¼­ ¹ß»ýÇÑ ÀåÃàÀÇ °©ÀÛ½º·¯¿î ±ÁÈûÀ» ÀǹÌÇÑ´Ù. ÀÌ´Â ÁÖ·Î ¼±Çà À¯Ä¡¿¡ ´ëÇÑ ±â°èÀû ¿Ü»óÀÌ ¿øÀÎÀÌ µÇ¾î ¹ß»ýÇÑ´Ù. ¸¸°îµÈ Ä¡¾Æ´Â Á¾Á¾ ¸ÍÃâ Àå¾Ö¸¦ µ¿¹ÝÇÑ´Ù. Ä¡¾Æ ¸¸°îÀº ÇϾǿ¡¼­ µå¹°°Ô ¹ß»ýÇÏÁö¸¸, ÇÔÀÔ°ú °°Àº ½ÉÇÑ ¿Ü»ó¼º ¼Õ»ó ÀÌÈÄ¿¡ ÃæºÐÈ÷ ¹ß»ýÇÒ ¼ö ÀÖ´Ù. º» Áõ·Ê´Â µÎ ¸íÀÇ È¯¾Æ¿¡¼­ È®ÀÎµÈ ¼±Çà À¯Ä¡ÀÇ ÇÔÀÔ¼º ¿Ü»ó ÀÌÈÄ ¹ß»ýÇÑ ÇÏ¾Ç ¿µ±¸ ÁßÀýÄ¡¿¡¼­ÀÇ ¸¸°î¿¡ ´ëÇÑ Áõ·Ê¸¦ º¸°íÇÏ°í ÀÖÀ¸¸ç, µÎ Áõ·Ê ¸ðµÎ¿¡¼­ ¸¸°î Ä¡¾ÆÀÇ ÀÚ¹ßÀû ¸ÍÃâÀÌ °üÂûµÇ¾ú´Ù. ù ¹ø° Áõ·Ê´Â Ä¡°ü°ú Ä¡±ÙÀÇ °æ°èºÎ ÁÖÀ§¿¡¼­ Ãø¹æÄ¡±Ù¸¸°îÀ» º¸¿´À¸¸ç, µÎ ¹ø° Áõ·Ê´Â Ä¡°ü¸¸°îÀ» º¸¿´´Ù.
º» Áõ·Ê¸¦ ÅëÇؼ­ À¯Ä¡ÀÇ ¿Ü»ó ÀÌÈÄ ÇÏ¾Ç ¿µ±¸ ÁßÀýÄ¡¿¡¼­ Ä¡°üºÎ ¸¸°î ȤÀº Ä¡°ü°ú Ä¡±Ù °æ°èºÎ¿¡¼­ÀÇ Ãø¹æ¸¸°îÀÌ °üÂûµÈ´Ù¸é, ¸¸°îÄ¡¾ÆÀÇ ÀÚ¹ßÀû ¸ÍÃâÀ» ±â´ëÇØ º¼ ¼ö ÀÖÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.

Dilacerations generally involve central incisors; most often maxillary incisors rather than their mandibular counterparts.
The clinical features of dilaceration include non-eruption of the responsible tooth or prolonged retention of the deciduous predecessor tooth. In Case 1, the tooth showed a dilaceration at the boundary between the crown and the root, more laterally rather than labiolingually. In Case 2, the dilacerated tooth showed a crown dilaceration with a relatively normal orientation of the dental root. In both cases, no significant space losses for eruption were observed.
Moreover, it seems that unlike the maxilla with the palate, the mandibular anterior teeth are limited to show severe displacement.
From these cases, it is suggested that if a mandibular permanent incisor shows a crown dilaceration or lateral dilaceration at the boundary between the crown and the root, there is a relatively high probability of spontaneous eruption of the dilacerated tooth.

Å°¿öµå

Dilaceration; Dental trauma; Primary tooth; Mandibular incisor; Spontaneous eruption; Hypocalcification

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