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A STUDY ON THE DENTAL MATURATION IN CHILDREN WITH CLASS III SKELETAL MALOCCLUSION OF MANDIBULAR OVERGROWTH TYPE

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·ùÇöÁ¤ ( Ryu Hyun-Jung ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
ÀÌâÇÑ ( Lee Chang-Han ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
Á¤¼ºÈñ ( Jeong Sung-Hee ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
±è½Å ( Kim Shin ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

ÇöÀç±îÁöÀÇ ¸¹Àº ¿¬±¸µéÀ» ÅëÇØ Ä¡¾ÆÀÇ ¹ßÀ°»óÅÂ¿Í °ñ°Ý¼º ºÎÁ¤±³ÇÕ°úÀÇ ¿¬°ü¼ºÀÌ º¸°íµÇ¾î ¿Ô´Ù. º» ¿¬±¸´Â ¹æ»ç¼±ÇÐÀû ¹æ¹ýÀ» ÅëÇÏ¿© Á¤»ó±³ÇÕ±º°ú ÇÏ¾Ç °ú¼ºÀåÇü °ñ°Ý¼º 3±Þ ºÎÁ¤±³ÇÕ±ºÀÇ »óÇÏ¾Ç Ä¡·É ¹× Á¦2´ë±¸Ä¡ ¸ÍÃâ·üÀ» ºñ±³, ºÐ¼®ÇÏ¿©, Æijë¶ó¸¶ ¹æ»ç¼± »çÁøÀ¸·Î Æò°¡ °¡´ÉÇÑ »óÇÏ¾Ç Ä¡¾Æ¼º¼÷µµÀÇ Â÷ÀÌ°¡ ÇÏ¾Ç °ú¼ºÀåÇü °ñ°Ý¼º 3±Þ ºÎÁ¤±³ÇÕÀÇ °¨º°Áø´Ü ¿ä¼Ò·Î ÀÇÀÇ°¡ ÀÖ´ÂÁö ¾Ë¾Æº¼ ¸ñÀûÀ¸·Î ½ÃÇàµÇ¾ú´Ù. ºÎ»ê´ëÇб³ ¼Ò¾ÆÄ¡°ú¿¡ ³»¿øÇÑ Hellman Ä¡·É IIIAÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î Á¤»ó±³ÇÕ±º°ú ÇÏ¾Ç °ú¼ºÀåÇü °ñ°Ý¼º 3±Þ ºÎÁ¤±³ÇÕ±º °¢ 50¸íÀ» ¼±ÅÃÇÑ ÈÄ, À̵éÀÇ Æijë¶ó¸¶ ¹æ»ç¼± »çÁøÀ» ÀÌ¿ëÇÏ¿© Demirjian¹ýÀ¸·Î °¢ ±ºÀÇ »óÇÏ¾Ç Ä¡·É ¹× Á¦2´ë±¸Ä¡ ¸ÍÃâ·üÀ» ±¸ÇÏ°í ±× Â÷À̸¦ ºñ±³, ºÐ¼®ÇÏ¿´´Ù. ±× °á°ú Á¤»ó±³ÇÕ±º°ú ÇÏ¾Ç °ú¼ºÀåÇü °ñ°Ý¼º 3±Þ ºÎÁ¤±³ÇÕ±ºÀÇ »óÇÏ Ä¡·ÉÀÇ Â÷ÀÌ´Â °¢°¢ 0.66¼¼¿Í 1.20¼¼·Î ÇÏ¾Ç °ú¼ºÀåÇü °ñ°Ý¼º 3±Þ ºÎÁ¤±³ÇÕ±º¿¡¼­ À¯ÀÇÇÏ°Ô ´õ Å« Â÷À̸¦ º¸¿´À¸¸ç(p < 0.05), »óÇÏ Á¦2´ë±¸Ä¡ ¸ÍÃâ·üÀº µÎ ±×·ì °£ À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(p > 0.05).

In growing children it is frequently found that dental maturation is strongly influenced by the growth rate of maxilla or mandible. If there is evidence to prove this, it might be utilized as a criterion in the early diagnosis of skeletal malocclusion, even before the object¡¯s real skeletal features are yet revealed. The purpose of this study was to find out if the difference of dental maturation in over-grown mandible in children with skeletal Class III has any relationship with some skeletal features of mandible. 50 patients in Hellman dental age IIIA with normal occlusion and Class III malocclusion of mandibular over-growth type respectively were selected as study objects. The age estimation was performed on maxillary and mandibular teeth, eruption rate of the 2nd molars of each group have been measured on panoramic radiography, and the differences in dental age of the upper and lower jaw were analyzed under Demirijian¡¯s method. The results were as follows: The difference of dental age of maxillary and mandibular teeth between the two groups was 0.66 and 1.20 years respectively, with a higher difference in the experimental group (p < 0.05). The difference of eruption rate of the maxillary and mandibular second molar was not found between two group (p >0.05).

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Ä¡¾Æ¼º¼÷µµ; ÇÏ¾Ç °ú¼ºÀåÇü °ñ°Ý¼º 3±Þ ºÎÁ¤±³ÇÕ; Ä¡·É; Demirjian¹ý
Dental Maturation; Class III skeletal malocclusion of mandibular overgrowth type; Dental age; Demirijian¡¯s method

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