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Effects of activator treatment on different skeletal patterns in growing class II malocclusion patients

Korean Journal of Orthodontics 2007³â 37±Ç 1È£ p.29 ~ 43
±èÁØÇå, ÀÌÁø¿ì,
¼Ò¼Ó »ó¼¼Á¤º¸
±èÁØÇå (  ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç
ÀÌÁø¿ì ( Lee Jin-Woo ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç

Abstract

º» ¿¬±¸´Â ¼ºÀå±â II±Þ ºÎÁ¤±³ÇÕÀÚ¸¦ °ñ°Ý ÇüÅ¿¡ µû¶ó ºÐ·ùÇÏ¿© ¾×Ƽº£ÀÌÅÍ »ç¿ë È¿°ú¸¦ ºñ±³, ºÐ¼®ÇÏ°í ±× °á°ú¸¦ Áø´Ü, Ä¡·á °èȹ ¼ö¸³ µî ÀÓ»ó °úÁ¤¿¡ ¿¬°è½ÃÅ°±â À§ÇØ ½ÃÇàµÇ¾ú´Ù. ½ÇÇèÀº ¼ö¿ÏºÎ ¹æ»ç¼± »çÁø»ó Fishman ºÐ·ùÀÇ 2, 3, 4 ´Ü°è·Î Ãִ뼺Àå±â ÀÌÀüÀÇ II±Þ ºÎÁ¤±³ÇÕÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. ´ëÁ¶±ºÀº ANB 3µµ ÀÌ»óÀÌ¸ç ¾ÇÁ¤Çü ÀåÄ¡ Ä¡·á¸¦ ¹ÞÁö ¾Ê°í Ä¡¿­±³Á¤ Ä¡·á¸¸ ¹ÞÀº ȯÀÚ·Î ÃÑ 25¸í(³²ÀÚ 15¸í, ¿©ÀÚ 10¸í)ÀÌ°í ½ÇÇ豺Àº ¾×Ƽº£ÀÌÅÍ Ä¡·á¸¦ ¹ÞÀº ȯÀÚ·Î ÃÑ 116¸í(³²ÀÚ 53¸í, ¿©ÀÚ 63¸í)À̾ú´Ù. Articular angle°ú gonial angleÀ» ÀÌ¿ëÇÏ¿© °ñ°Ý ÇüŸ¦ hyperdivergent type°ú hypodivergent typeÀ¸·Î ºÐ·ùÇÏ¿© ¾×Ƽº£ÀÌÅÍ Ä¡·áÈ¿°ú¸¦ ºñ±³ÇÑ °á°ú hypodivergentÇÑ °ñ°Ý ÇüŸ¦ °¡Áø ȯÀÚ¿¡¼­ ´õ Å« È¿°ú¸¦ º¸¿´´Ù. µû¶ó¼­ ¼ºÀå±â II±Þ ºÎÁ¤±³ÇÕÀÚÀÇ Áø´Ü°ú Ä¡·á°èȹ ¼ö¸³ ½Ã ¾È¸ðÀÇ °ñ°Ý ÇüÅ ºÐ·ù¸¦ ÅëÇØ ¾×Ƽº£ÀÌÅÍÀÇ È¿°ú¸¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Ù°í »ý°¢ÇÑ´Ù.

Objective: To establish proper diagnosis and treatment plan for skeletal Class II malocclusions, some important factors to consider are the patient¡¯s skeletal morphology, prognosis as well as the treatment effects. Therefore, the present study analyzed the effects of activator treatment on different skeletal patterns in growing Class II malocclusion patients. Methods: A total of 116 patients (53 boys & 63 girls) in the experimental group were treated with the activator appliance. The experimental group was classified into either hyperdivergent or hypodivergent groups according to articular and genial angles. Results: Patients with hypodivergent growth patterns showed good effects of activator treatment. Conclusion: It seems conceivable that through classifying adolescent Class II malocclusion patients into different skeletal patterns, activator treatment effects may be predicted during the diagnosis and treatment planning stage.

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II±Þ ºÎÁ¤±³ÇÕ;¾×Ƽº£ÀÌÅÍ;°ñ°ÝÇüÅÂ;¾È¸ð¼ºÀå
Class II malocclusion;Activator;Skeletal pattern;Facial growth

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