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TYPE II DENTINOGENESIS IMPERFECTA : CASE REPORT

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Abstract

»ó¾ÆÁúÇü¼ººÎÀüÁõÀº À¯ÀüÀûÀÎ »ó¾ÆÁúÀÇ °áÇÔÀ¸·Î Ä¡¾Æ ¹ßÀ°°úÁ¤ Áß Á¶Á÷ºÐÈ­±â¿¡ ¹ß»ýµÇ¸ç À¯Ä¡¿Í ¿µ±¸Ä¡ ¸ðµÎ¿¡¼­ ³ªÅ¸³­´Ù. ShieldsµîÀº »ó¾ÆÁúÇü¼ººÎÀüÁõÀ» type I, II, III·Î ºÐ·ùÇÏ¿´À¸¸ç, Witkop¿¡ µû¸£¸é 1/8000¸íÀÇ ºóµµ·Î ÀÌ·¯ÇÑ À¯ÀüÀû ¼ÒÀÎÀ» °®°Ô µÇ¸ç, ³²³à°£ÀÇ Â÷ÀÌ´Â ¶Ñ·ÇÇÏÁö ¾Ê´Ù°í ÇÑ´Ù. ÀÌȯ¹ÞÀº Ä¡¾Æ´Â Àû°¥»öÀÇ º¯»ö°ú ÇÔ²² ½ÉÇÑ ¸¶¸ðÇö»óÀ¸·Î ÀÎÇØ ±¸Ä¡ºÎ ±³ÇÕ¸é°ú ÀüÄ¡ÀÇ Àý´Ü¸éÀÇ ¹ý¶ûÁúÀÌ Æı«µÇ°í ±×ÈÄ ±Þ¼Óµµ·Î »ó¾ÆÁúÀÇ Æı«°¡ µÚµû¸¥´Ù. ¹æ»ç¼±ÇÐÀûÀ¸·Î °¡´À´Ù¶õ Ä¡±Ù°ú ±¸±Ù»óÄ¡°ü, Ä¡°æºÎ ÇùÂø, À۰ųª °á¼ÕµÈ Ä¡¼ö°­ÀÌ °üÂûµÇ°í, À¯Ä¡¿­¿¡¼­ Ä¡±Ù´Üº´¼Ò³ª ´Ù¹ß¼º Ä¡±ÙÆÄÀýÀÌ °üÂûµÇ±âµµ ÇÑ´Ù. º» Áõ·ÊÀÇ 4¼¼ ³²ÀÚȯ¾Æ´Â Ä¡¾Æ»öÀÌ ÀÌ»óÇÏ´Ù´Â °ÍÀ» ÁÖ¼Ò·Î ¿¬¼¼´ëÇб³ Ä¡°úº´¿ø ¼Ò¾ÆÄ¡°ú¿¡ ³»¿øÇÏ¿´´Ù. Ä¡¾Æ´Â Àü¹ÝÀûÀ¸·Î Ȳ°¥»öÀÇ º¯»ö°ú ÁߵÀÇ ¸¶¸ðµµ¸¦ º¸¿´À¸¸ç, ¹æ»ç¼± °Ë»ç ¼Ò°ß¿¡¼­ Ä¡¾ÆÀÇ Ä¡¼ö°­ Æó¼â, ±¸±Ù»óÄ¡°ü, ªÀº Ä¡±ÙµéÀÌ °üÂûµÇ¾ú´Ù. °¡Á··Â»ó °¢ ¼¼´ë¸¶´Ù ȯ¾Æ¿Í °°Àº Ä¡¾Æº¯»ö°ú ¸¶¸ðÀÇ À¯Àü¾ç»óÀÌ °üÂûµÇ¾úÀ¸¸ç, 10¼¼µÈ ȯ¾ÆÀÇ´©³ª´Â ¿µ±¸Ä¡¿­¿¡ ÀüüÀûÀ¸·Î ȸ°¥»öÀÇ º¯»ö°ú °æµµÀÇ ¸¶¸ðµµ¸¦ º¸¿´´Ù. ÀÓ»ó ¹×, ¹æ»ç¼±ÇÐÀû °Ë»ç¼Ò°ß»ó »ó¾ÆÁúÇü¼ººÎÀüÁõÀ¸·Î ÆǴܵǾî ȯ¾ÆÀÇ ¼Õ»óµÈ Ä¡¾Æ¿¡ ´ëÇØ ±¸Ä¡ºÎ´Â ±â¼º±Ý°ü ¼öº¹À», open-faced stainless steel crownÀ¸·Î Ä¡±ÙÆÄÀý·Î ÀÎÇØ ¹ß°ÅµÈ »ó¾Ç ÁÂÃø À¯ÁßÀýÄ¡¸¦ Æ÷ÇÔÇÑ ¼Õ»óµÈ ÀüÄ¡ºÎ¸¦ ¼öº¹ÇØ ±â´ÉÀû, ½É¹ÌÀûÀ¸·Î ¸¸Á·ÇÒ ¸¸ÇÑ °á°ú¸¦ ¾ò¾î ÀÌ¿¡ º¸°í¸¦ ÇÏ´Â ¹ÙÀÌ´Ù.

Dentinogenesis imperfecta is an example of an inheritable dentinal defect originating during the histodifferentiation stage of tooth development, with involvement of the primary and permanent teeth. Shields, Bixler and El-Kafrawy proposed three types of Dentinogenesis imperfecta : Type I, II, III. Witkop reported a prevalence of 1 in 8000 with the trait, and no significant difference between male and female. Affected teeth have red-brown discoloration often with distinctive wearness of occlusal surface of posterior teeth and incisal surface of anterior teeth. Once enamel seperated from underlying defective dentin, the dentin demonstrates significantly acclerated attrision. Radiographically, the teeth have thin roots, bulbous crown, cervical constriction, and obliteration of the root canals and pulp chambers. In primary dentition periapical lesions or multiple root fractures are often observed. In successive generations the phenotypes of discoloration and wearness of teeth occurred, and one of the patient¡¯s subships, 10 year-old sister, showed general discoloration of her teeth and mild wearness. In this case, a 4 year-old male reported to the Yonsei University Pedodontics clinic, with a chief complaint of discolored teeth. The teeth showed generally yellowish-brown discoloration and moderate wearness. In radiographic features, obliteration of pulp, bulbous crown, and short roots were observed. It was diagnosed as Dentinogenesis imperfecta. The posterior teeth were restored with Stainless Steel Crown, and defective incisors including left upper primary central incisor which was extracted due to a root fracture with Open-faced Stainless Steel crown.

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Dentinogenesis imperfecta;Discoloration;Bulbous crown;Pulp obliteration

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