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II±Þ ºÎÁ¤±³ÇÕÀÚ¿¡¼­ ¾×Ƽº£ÀÌÅÍ »ç¿ë¿¡ µû¸¥ atlasÀÇ À§Ä¡ º¯È­¿¡ °üÇÑ ¿¬±¸

Changes in atlas position with Class ll activator treatment in Class II malocclusion patients

Korean Journal of Orthodontics 2007³â 37±Ç 1È£ p.44 ~ 55
Á¶¹®±â, Â÷°æ¼®, Á¤µ¿È­, ÀÌÁø¿ì,
¼Ò¼Ó »ó¼¼Á¤º¸
Á¶¹®±â (  ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
Â÷°æ¼® ( Cha Kyung-Suk ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
Á¤µ¿È­ ( Jung Dong-Hwa ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
ÀÌÁø¿ì ( Lee Jin-Woo ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç

Abstract

º» ¿¬±¸´Â II±Þ ºÎÁ¤±³ÇÕÀÚ¿¡¼­ ¾×Ƽº£ÀÌÅÍ »ç¿ë ÈÄ, ÇϾǰñÀÇ º¯È­¿¡ µû¸¥ atlasÀÇ À§Ä¡ ¹× ÇüÅ º¯È­¸¦ Á¶»çÇÏ°í, ±×¿¡ µû¸¥ Ä¡·á È¿°ú¸¦ ¿¹ÃøÇØ º¸°íÀÚ ½ÃÇàÇÏ¿´´Ù. ½ÇÇ豺À¸·Î II±Þ ºÎÁ¤±³ÇÕÀÚ·Î½á ¾×Ƽº£ÀÌÅÍ Ä¡·á¸¦ ½ÃÇàÇÑ °æ¿ì 1±º(ÃÑ30¸í, ³²ÀÚ 15, ¿©ÀÚ 15¸í), ´ëÁ¶±ºµé·Î II±Þ ºÎÁ¤±³ÇÕÀÚ·Î ¾×Ƽº£ÀÌÅÍ Ä¡·á¸¦ ¹ÞÁö ¾Ê°í, ±³Á¤Ä¡·á¸¦ ¹ÞÀº 2±º(ÃÑ 22¸í, ³²ÀÚ 12, ¿©ÀÚ 10)°ú I±Þ ºÎÁ¤±³ÇÕÀÚ·Î Ä¡·á¸¦ ¹ÞÀº ȯÀÚ 3±º(ÃÑ 22¸í, ³²ÀÚ 12, ¿©ÀÚ 10)À¸·Î ÃÑ ¼¼ °³ÀÇ ±ºÀ¸·Î ³ª´©¾ú´Ù. Ä¡·á Àü(T1), ¾×Ƽº£ÀÌÅÍ »ç¿ë ÁßÁö ¹× Ä¡·á Áß°£½Ã±â(T2), Ä¡·á Á¾·á(T3)½ÃÀÇ Ãø¸ðµÎºÎ¹æ»ç¼±»çÁøÀ» ÅëÇؼ­ °ñ°Ý ÇüÅ °èÃø ¹× atlas ÇüÅ °èÃøÀ» ½ÃÇàÇÏ¿´´Ù. II±Þ ¾×Ƽº£ÀÌÅÍ »ç¿ë °á°ú ¾×Ƽº£ÀÌÅ͸¦ »ç¿ëÇÏÁö ¾ÊÀº II±Þ ºÎÁ¤±³ÇÕÀÚ ±º¿¡ ºñÇØ Ä¡·á Á¾·á ½Ã ´ÙÀ½°ú °°Àº °èÃøÄ¡ µé¿¡¼­ °ñ°ÝÀûÀÎ È¿°ú°¡ ³ªÅ¸³µ´Ù: ramal height, body length¿Í effective body length´Â Áõ°¡ÇÏ¿´°í, ANB´Â °¨¼ÒÇÏ¿´´Ù. OverjetÀº µÎ ±º »çÀÌ¿¡¼­ ¾×Ƽº£ÀÌÅÍ »ç¿ë ÈÄ À¯ÀÇÇÑ °¨¼Ò°¡ ÀϾÀ¸³ª, Ä¡·á Á¾·á ½Ã¿¡´Â À¯ÀÇÇÑ º¯È­°¡ ¾ø¾ú´Ù. ¼¼ ±º ¸ðµÎ¿¡¼­ FH¿¡ ´ëÇÑ atlasÀÇ ½Ã°è¹æÇâ ȸÀüÀÌ ³ªÅ¸³µÀ¸³ª, ½ÇÇ豺 1±º¿¡¼­ ´ëÁ¶±º 2, 3±º¿¡ ºñÇØ À¯ÀÇÇÏ°Ô atlas°¡ FH¿¡ ´ëÇØ ½Ã°è¹æÇâ ȸÀüµÇ´Â °á°ú°¡ ³ªÅ¸³µ´Ù. 1±ºÀÌ 3±º¿¡ ºñÇؼ­ atlasÀÇ À¯ÀÇÇÑ ÈĹæÀ̵¿À» º¸ÀÎ °ÍÀ» Á¦¿ÜÇÏ°í´Â ¼¼ ±º »çÀÌÀÇ atlasÀÇ Àü, ÈĹæÀû À§Ä¡³ª, ÇüÅÂÀÇ Å©±â º¯È­¿¡ ÀÖ¾î À¯ÀÇÇÑ Â÷ÀÌÁ¡Àº ¾ø¾ú´Ù. À§ÀÇ °á°úµéÀ» °í·ÁÇØ º¼ ¶§ atlasÀÇ ÀåÃàÀÇ ½Ã°è¹æÇâ ȸÀüÀº ¾×Ƽº£ÀÌÅÍÀÇ »ç¿ë È¿°ú·Î »ý°¢µÇ¸ç, ÀÌ´Â Â÷ÈÄ II±Þ ºÎÁ¤±³ÇÕÀÚ¿¡¼­ ¾×Ƽº£ÀÌÅÍ Ä¡·á È¿°ú¸¦ ÆÇ´ÜÇÏ´Â ¶Ç ÇϳªÀÇ ÁöÇ¥°¡ µÉ ¼ö ÀÖ´Ù°í »ý°¢ÇÑ´Ù.

Objective: Previous studies have reported that morphological features of the first cervical vertebra (atlas) have been associated with mandibular growth direction. The purpose of this study was to show the possible positional and morphological changes of the Atlas from activator treatment in Class II malocclusion patients. Methods: Lateral cephalometric radiograph tracings were made at initial, middle and final stages of treatment. Angular and linear measurements of skeletal and morphological features were measured on the anatomical landmarks and reference planes. Results: The skeletal effects of activator treatment on Class II malocclusion patients were evident on ramal height, body length, effective body length, ANB, and overjet. Clockwise rotation of the long axis of the Atlas was found in Group 1, but there was no inclination change of the Atlas in groups 2 and 3. There was no significant correlation between anterior and posterior positions of the atlas or morphological change in all groups. - except for posterior movements of the Atlas found in group 1. Conclusion: Clockwise rotation of the atlas axis resulted from activator treatment in Cl II malocclusion patients. Change in atlas axis can be thought of as an indicator for success of activator treatment.

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Atlas;Class II activator

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SCI(E)
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KoreaMed