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°ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀÚÀÇ È¾ÀûÀÎ °ñ°Ý°ú ¾Ç±Ã ÇüÅ¿¡ °üÇÑ ¿¬±¸

Study of horizontal skeletal pattern and dental arch in skeletal Class III malocclusion patients

Korean Journal of Orthodontics 2008³â 38±Ç 5È£ p.358 ~ 369
¹ÚÈñÂù, ÀÌÁø¿ì,
¼Ò¼Ó »ó¼¼Á¤º¸
¹ÚÈñÂù ( Park Hee-Chan ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
ÀÌÁø¿ì ( Lee Jin-Woo ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç

Abstract

°ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀÚ´Â ±³Á¤Ä¡·á¿Í ¾Ç±³Á¤ ¼ö¼úÀ» º´ÇàÇÏ¿© Ä¡·áÇÏ´Â °æ¿ì°¡ ¸¹¾Æ °ñ°ÝÇüÅ¿¡ ´ëÇÑ Á¤È®ÇÑ Æľǰú ÀÌÇØ°¡ ÇʼöÀûÀÌ´Ù. ÀÌ¿¡ º» ¿¬±¸´Â °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀÚ¿Í Á¤»ó±³ÇÕÀÚ °£ÀÇ °ñ°Ý ÇüÅÂÀÇ Â÷À̸¦ ¹àÈ÷°íÀÚ ½ÃÇàµÇ¾ú´Ù. ½ÇÇ豺À¸·Î´Â ´Ü±¹´ëÇб³ ±³Á¤°ú¿¡¼­ °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀ¸·Î Áø´ÜµÇ¾î ¼ú Àü ±³Á¤Ä¡·á¸¦ ¹Þ±â·Î ¿¹Á¤µÈ ÃÑ 20¸íÀ» ¼±Á¤ÇÏ¿´°í, ´ëÁ¶±ºÀ¸·Î´Â °ñ°Ý¼º I±Þ Á¤»ó±³ÇÕ±ºÀ¸·Î I±Þ ±³ÇÕ°ü°è¸¦ º¸À̸ç, ±³Á¤Ä¡·á¿Í º¸Ã¶Ä¡·áÀÇ °æÇèÀÌ ¾ø´Â Á¤»ó ±³ÇÕÀÚ 10¸íÀ» ¼±Á¤ÇÏ¿© CTÃÔ¿µÀ» ½ÃÇàÇÑ ÈÄ 3Â÷¿ø ÀÔü¿µ»óÀ» Á¦ÀÛ, ºÐ¼®ÇÏ¿© »ó, ÇÏ¾Ç ±âÀú°ñÀ» ȾÀûÀ¸·Î ºñ±³ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù. °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀÚ±ºÀÇ Æ¯Â¡À» »ìÆ캸¸é, »ó¾Ç ±âÀú°ñÀÇ Æø°æÀÌ À¯ÀǼº ÀÖ°Ô ´õ ÀÛ¾Ò°í, A point¿¡¼­ ANS·Î °¥¼ö·Ï Á¦1¼Ò±¸Ä¡ ºÎÀ§¿¡¼­ À¯ÀÇÇÏ°Ô ÆøÀÌ °¨¼ÒÇÏ¿´À¸¸ç, Á¦2¼Ò±¸Ä¡ ºÎÀ§¿¡¼­ ÆøÀÇ Áõ°¡·®ÀÌ À¯ÀÇÇÏ°Ô ÀÛ¾Ò´Ù. ÇÏ¾Ç ±âÀú°ñÀº B point, Antegonion ±âÁØ È¾´Ü¸é¿¡¼­ °ßÄ¡, Á¦1¼Ò±¸Ä¡ ºÎÀ§ÀÇ Æø°æÀÌ À¯ÀǼº ÀÖ°Ô Å©°Ô ³ªÅ¸³µ´Ù. »óÇϾÇÀÇ ºñ±³ ½Ã, ½ÇÇ豺ÀÇ °ßÄ¡ºÎ, Á¦1¼Ò±¸Ä¡ºÎ, Á¦2¼Ò±¸Ä¡ºÎ¿¡¼­ ÇϾǿ¡ ºñÇØ »ó¾ÇÀÇ Æø°æÀÌ À¯ÀǼº ÀÖ°Ô ÀÛÀ½À» º¸¿´´Ù. (´ëÄ¡±³Á¤Áö 2008;38(5):358-370)

Objective: The purpose of this study was to investigate the horizontal skeletal pattern and dental arch differences between Class III malocclusion patients and normal occlusion patients.

Methods: Twenty skeletal Class III malocclusion patients and ten normal occlusion patients were selected and 3D facial CT were taken to analyze the horizontal skeletal differences between the two groups.

Results: In the horizontal comparison of the maxilla, skeletal width and perimeter were significantly smaller in skeletal Class III patients on ANS and A point reference planes. The difference between maxillary width of ANS and A point reference planes showed that there was greater constriction of the first and second premolar in skeletal Class III patients. In the horizontal comparison of the mandible, the widths of the canine and premolar area were significantly larger in skeletal Class III patients on B point reference plane. The differences between width of the upper and lower jaws (comparison of A and B reference planes) were significantly large in the canine and premolar area.

Conclusions: From this study, the characteristics of Class III malocclusion patients were shown through horizontal constriction of the maxilla. But to make clear further detailed characteristics of Class III malocclusion patients, additional studies are necessary. (Korean J Orthod 2008;38(5):358-370)

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3Â÷¿ø ¿µ»ó;ÇÏ¾Ç Àüµ¹
3-D imaging;Prognathism

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