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Treatment effect of face mask therapy for Class III malocclusion patients according to low facial morphology

Korean Journal of Orthodontics 2007³â 37±Ç 4È£ p.245 ~ 259
Â÷°æ¼®,
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Â÷°æ¼® ( Cha Kyung-Suk ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±³Á¤Çб³½Ç

Abstract

¼ºÀå±â ¾Æµ¿ÀÇ »ó¾Ç°ñ Àü¹æ °ßÀÎÀ» ÀÌ¿ëÇÑ Ä¡·á È¿°ú Áß ÇϾǰñÀÇ ÈÄÇϹæ ȸÀüÀº III±Þ °ñ°Ý°ü°è¸¦ °³¼±½ÃÅ°Áö¸¸ ÇϾȸðÀÇ ±æÀÌ°¡ ±æ¾îÁ® face mask°¡ Àå¾È¸ð ȯÀÚ¿¡°Ô´Â ºñÀûÀÀÁõ À̶ó´Â °ÍÀÌ ¼±ÇеéÀÇ ÀϹÝÀû °ßÇØ¿´´Ù. ±×·¯³ª ½ÇÁ¦·Î ÇϾȸðÀÇ ±æÀ̸¦ ºÐ·ù ±âÁØÀ¸·Î »ï¾Æ ÀÌ¿¡ µû¸¥ Ä¡·á È¿°ú¸¦ ºñ±³ÇÑ ¿¬±¸´Â ºÎÁ·ÇÑ ½ÇÁ¤ÀÌ¸ç °æÁ¶Á÷ º¯È­¿¡ µû¸¥ ¿¬Á¶Á÷ º¯È­ÀÇ ¿¬±¸ ¶ÇÇÑ ¹ÌºñÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­´Â »ó¾Ç°ñ ¿­¼ºÀåÀ» º¸ÀÌ´Â ¼ºÀå±â °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕ È¯ÀÚ 44¸íÀ» RickettsÀÇ lower facial height (LFH)±âÁØ¿¡ µû¶ó LFH°¡ Á¤»ó ¼öÄ¡ ÀÌ»óÀÎ ±º(1±º)°ú ¹Ì¸¸ÀÎ ±º(2±º)À¸·Î ºÐ·ùÇÏ¿©, »ó¾Ç°ñ Àü¹æ °ßÀÎ ½Ã µÎ ±º°£ÀÇ °æÁ¶Á÷, ¿¬Á¶Á÷ Ä¡·á È¿°ú¸¦ ºñ±³ÇÏ°í °æÁ¶Á÷°ú ¿¬Á¶Á÷ÀÇ »óÈ£ °ü°è¸¦ ºñ±³ ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù. »ó¾ÇÀÇ °æÁ¶Á÷, ¿¬Á¶Á÷ Àü¹æ À̵¿·®Àº µÎ ±º°£¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ÇϾÇÀÇ °æÁ¶Á÷ ÈĹæÀ̵¿·®Àº µÎ ±º°£¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸³ª ¿¬Á¶Á÷ ÈĹæÀ̵¿·®Àº 2±º¿¡¼­ ´õ Å©°Ô ³ªÅ¸³µ´Ù. ÇϾȸéÀÇ °æÁ¶Á÷ ¼öÁ÷ ºñÀ² º¯È­´Â µÎ ±º°£¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸³ª ¿¬Á¶Á÷ ¼öÁ÷ ºñÀ² º¯È­´Â 2±º¿¡¼­ ´õ Å©°Ô ³ªÅ¸³µ´Ù. »ó¾Ç°ú ÇϾÇÀÇ ÀüÈĹæÀû °æÁ¶Á÷, ¿¬Á¶Á÷ º¯È­´Â À¯ÀÇÇÑ »ó°ü°ü°è¸¦ °®´Â ¹Ý¸é ¼öÁ÷Àû ÇÏ¾È¸é ºñÀ² º¯È­´Â À¯ÀÇÇÑ »ó°ü°ü°è¸¦ °®Áö ¾Ê¾Ò´Ù. À§ÀÇ °á°úµéÀ» °í·ÁÇØ º¼ ¶§ Face mask »ç¿ë °á°ú »ó¾Ç°ñÀÇ Àü¹æ À̵¿°ú ÇϾǰñÀÇ ÈÄÇϹæȸÀüÀÌ ÀϾÀ¸¸ç ÇϾÇÀÇ ¿¬Á¶Á÷ ÈĹæ À̵¿·®Àº ´Ü¾È¸ð¿¡¼­ ´õ Å©°Ô ³ªÅ¸³µ´Ù

Improvements in jaw relationship through clockwise rotation of the mandible may be desirable in some Class III patients with short low facial height. The aim of this study was to examine the treatment effect of face mask for Class III malocclusion patients according to their low facial morphology.

Methods:Class III patients in their pubertal growth period were divided into two groups (Group 1, high LFH; Group 2, low LFH) according to lower facial height (LFH) by Ricketts (norm, 47). treatment changes between groups after face mask treatment was compared not only for hard tissue but also for soft tissue.

Results: There were no significant differences between the two groups for the skeletal and soft tissues of the maxilla. There were no significant differences between the two groups for the skeletal posterior movement of the mandible, but posterior movement of the mandibular soft tissues in group 2 was larger than group 1. There were no significant differences between the two groups for the vertical hard tissue proportion changes of the mandible, but the vertical soft tissue proportion changes of the mandible in group 2 was larger than group 1. There was a significant correlation between the sagittal hard tissue and soft tissue changes of the maxilla and mandible, but there was no significant difference in the vertical changes.

Conclusion:The clockwise rotation of the mandible occurred from use of the face mask, and posterior movement of soft tissues of the mandible was higher in Cl III patients with low LFH than with high LFH.

Å°¿öµå

III±Þ ºÎÁ¤±³ÇÕ
Cl III malocclusion;Face mask;Lower facial height

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