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»ó¼øµ¹ÃâÀ» µ¿¹ÝÇÑ °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕ¿¡¼­ ¼ö¼ú¹æ¹ý¿¡ µû¸¥ Ä¡·á ÈÄ »ó¾Ç ¿¬Á¶Á÷ º¯È­ - ASO/BSSRO¿Í Le Fort I/BSSRO ºñ±³

Soft tissue changes associated with ASO/BSSRO and Le Fort I/BSSRO in skeletal Class III malocclusion with upper lip protrusion

Korean Journal of Orthodontics 2010³â 40±Ç 6È£ p.383 ~ 397
°­ÁÖ¸¸, ±èÀ±Áö, ¹ÚÀç¾ï, ±¹À±¾Æ,
¼Ò¼Ó »ó¼¼Á¤º¸
°­ÁÖ¸¸ ( Kang Ju-Man ) - °¡Å縯´ëÇб³ ÀÓ»óÄ¡°úÇдëÇпø ±³Á¤°ú
±èÀ±Áö ( Kim Yoon-Ji ) - °¡Å縯´ëÇб³ ÀÓ»óÄ¡°úÇдëÇпø ±³Á¤°ú
¹ÚÀç¾ï ( Park Je-Uk ) - °¡Å縯´ëÇб³ ÀÓ»óÄ¡°úÇдëÇпø ±¸°­¾Ç¾È¸é¿Ü°ú
±¹À±¾Æ ( Kook Yoon-Ah ) - °¡Å縯´ëÇб³ ÀÓ»óÄ¡°úÇдëÇпø ±³Á¤°ú

Abstract

º» ¿¬±¸´Â »ó¼øµ¹ÃâÀ» µ¿¹ÝÇÑ °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕ¿¡¼­ Àü¹æºÐÀý°ñÀý´Ü¼ú(anterior segmental osteotomy, ASO)À» º´¿ëÇÑ »óÇàÁö½Ã»óºÐÇÒ°ñÀý´Ü¼ú(bilateral sagittal split ramus osteotomy, BSSRO)°ú Le Fort I °ñÀý´Ü¼úÀ» º´¿ëÇÑ »óÇàÁö½Ã»óºÐÇÒ°ñÀý´Ü¼ú(BSSRO) ÈÄ »ó¾ÇÀÇ °æ¤ý¿¬Á¶Á÷ º¯È­ ¹× °æÁ¶Á÷ º¯È­¿¡ ´ëÇÑ ¿¬Á¶Á÷ º¯È­À²À» ºñ±³ÇÏ¿´´Ù. A±ºÀº ASO/BSSRO¸¦ ½ÃÇàÇÑ ±º 14¸í, B±ºÀº Le Fort I/BSSRO¸¦ ½ÃÇàÇÑ È¯ÀÚ Áß »ó¾ÇÀÇ ÈĹæºÎ°¡ »ó¹æÀ¸·Î À̵¿(posterior impaction)µÈ 15¸íÀ¸·Î ±¸¼ºµÇ¾ú´Ù. ¼ö¼ú Àü 2°³¿ù À̳»¿Í ¼ö¼ú ÈÄ 6°³¿ù ÀÌÈÄ¿¡ ÃÔ¿µÇÑ Ãø¸ðµÎºÎ¹æ»ç¼±»çÁøÀ» ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. µÎ ±º ¸ðµÎ ¼ö¼ú ÈÄ »ó¾Ç Àü¹æºÎ °æÁ¶Á÷°ú ¿¬Á¶Á÷ÀÌ ÈĹæÀ̵¿µÇ¾ú°í, A±º¿¡¼­ ´õ Å« º¯È­·®À» º¸¿´´Ù. A pointÀÇ ÈĹæÀ̵¿¿¡ µû¸¥ superior labial sulcusÀÇ º¯È­À²Àº A±º¿¡¼­ 79%, B±º¿¡¼­ 15%¸¦ º¸¿´°í, supradentale¿¡ ´ëÇØ labrale superious´Â A±º¿¡¼­ 80%, B±º¿¡¼­ 68%ÀÇ ºñÀ²·Î ÈĹæÀ̵¿ÇÏ¿´´Ù. ±³ÇÕÆò¸é°¢Àº B±º¿¡¼­ Áõ°¡ÇÑ ¹Ý¸é, A±º¿¡¼­´Â Åë°èÀûÀ¸·Î À¯ÀǼº ÀÖ´Â º¯È­°¡ ¾ø¾ú´Ù. ÀÌ»óÀÇ ¿¬±¸°á°ú °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀÇ ¾ç¾Ç¼ö¼ú ½Ã »ó¾Ç ¼ö¼úÀº »ó¾Ç Àü¹æºÎ¿Í »ó¼øÀÇ µ¹ÃâÀÌ ½ÉÇÑ °æ¿ì¿¡´Â ASO¸¦ ½ÃÇàÇÏ°í ±³ÇÕÆò¸é°¢ÀÇ Áõ°¡°¡ ÇÊ¿äÇÑ °æ¿ì¿¡´Â posterior impactionÀ» µ¿¹ÝÇÑ Le Fort I °ñÀý´Ü¼úÀ» ½ÃÇàÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ÇÏ´Ù.

Objective: The objective of this study was to compare maxillary soft tissue changes and their relative ratios to
hard tissue changes after anterior segmental osteotomy (ASO)/bilateral sagittal split ramus osteotomy (BSSRO) and Le Fort I/BSSRO in skeletal Class III malocclusion with upper lip protrusion.

Methods: The study sample comprised the ASO/BSSRO group (n = 14) and the Le Fort I/BSSRO group (n = 15). The Le Fort I/BSSRO group included cases of maxillary posterior impaction only. Lateral cephalograms were taken 2 months before and 6 months after surgery. Linear and angular measurements were performed.

Results: The anterior maxilla moved backward in both groups after surgery, however the amount of change was significantly larger in the ASO/BSSRO group (p £¼ 0.01). The ratios of hard to soft tissue change were 79% (SLS to A point), 80% (LS to A point) in the ASO/BSSRO group, and 15% (SLS to A point), 68% (LS to A point) in the Le fort I/BSSRO
group. In addition, there was a 3.23¡Æ increase of the occlusal plane in the Le Fort I/BSSRO group.

Conslusions: When two-jaw surgery is indicated in skeletal Class III patients with protrusive lips, ASO may be a treatment of choice for cases with more severe upper lip protrusion, while Le Fort I with posterior impaction may be considered if an increase of occlusal plane angle is required.

Å°¿öµå

¾ç¾Ç¼ö¼ú; ¿¬Á¶Á÷ º¯È­; Le Fort I °ñÀý´Ü¼ú; Àü¹æºÐÀý°ñÀý´Ü¼ú
Two-jaw surgery; Soft tissue change; Le Fort I osteotomy; Anterior segmental osteotomy

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