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A STUDY ON THE CHANGE THE UPPER LIP AFTER SAGITTAL SPLIT RAMUS OSTEOTOMY

¿ì¼ø¼·, À§Çöö, ÀÌâ¿ì, ½É±¤¼·,
¼Ò¼Ó »ó¼¼Á¤º¸
¿ì¼ø¼· (  ) - ÇѾç´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
À§Çöö (  ) - ÇѾç´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
ÀÌâ¿ì (  ) - ÇѾç´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç
½É±¤¼· (  ) - ÇѾç´ëÇб³ ÀÇ°ú´ëÇÐ Ä¡°úÇб³½Ç

Abstract

°á·Ð
ÇÏ¾Ç Àüµ¹ÁõÀ» ÁÖ¼Ò·Î ÇѾç´ëÇб³º´¿ø ±¸°­¾Ç¾È¸é¿Ü°ú¿¡ ³»¿øÇÏ¿© ÇϾÇÁö½Ã»óºÐÇÒ¼úÀ» ¹Þ
Àº 12¸íÀÇ È¯ÀÚ¿¡ ´ëÇÏ¿© ¼ö¼úÀüÈÄ Ãø¸ðµÎºÎ±Ô°Ý ¹æ»ç¼±»çÁøÀ» ºÐ¼®ÇÔÀ¸·Î½á ´ÙÀ½°ú °°Àº
°á·ÐÀ» ¾ò¾ú´Ù.
1. ÇϾÇÀüÄ¡ÀÇ ÈĹæ À̵¿·®¿¡ ´ëÇÏ¿© Ls´Â 15.1% StmÀº 38.4%ÀÇ ÈĹæÀ̵¿À» ÇÏ¿´´Ù.
2. ÇϾȸ𿡼­ »ó¼øºÎ ´ë ÇϼøºÎÀÇ ±æÀÌ ºñÀ²ÀÌ 1 : 2.352¿¡¼­ 1 : 2.069·Î º¯ÇÏ¿© °³¼±µÈ
¾È¸ðÀÇ º¯È­ ¾ç»óÀ» º¸¿´´Ù.
3. »ó¼øÀÇ Ç³À¶µµ´Â ¼ö¼ú ÈÄ72.4%·Î °¨¼ÒÇÏ¿© »ó¼øÀÌ ÆíÆòÇØÁø ¾ç»óÀ» º¸¿´´Ù.
4. »ó¼øÀÇ ¼øÈ«ºÎ(vermilion border)´Â ¼öÆò ¹æÇâÀ¸·Î 56%°¡ Áõ°¡ÇÏ¿´À¸¸ç, ¼öÁ÷ ¹æÇâÀ¸·Î
´Â 5.8%°¡ Áõ°¡ÇÏ¿´´Ù.
5. »ó¼ø ´ë ÇϼøÀÇ ¼øÈ«ºÎ ¼öÁ÷±æÀÌ´Â ¼úÀü 1 : 1.253¿¡¼­ ¼ú ÈÄ 1 : 1.348·Î º¯È­ÇÏ¿´´Ù.
6. ÇÏ¾Ç ÀüÄ¡ÀÇ ¼öÁ÷°Å¸® À̵¿¿¡ ´ëÇÑ»ó¼øÀÇ ¼öÁ÷°Å¸® º¯È­´Â ´Ù¾çÇÑ ¾ç»óÀ» º¸¿© ÀÏ°üÀû
ÀÎ ¸éÀÌ ¾ø¾ú´Ù.
7. Esthetic line¿¡ ´ëÇÑ »ó¼øÀÇ À§Ä¡´Â -3.958¿¡¼­ -1.15·Î º¯ÇÏ¿© Á¤»óÀÎ Æò±Õ -0.77¿¡ ±Ù
Á¢ÇÏ¿´´Ù.

Recently, sagittal split ramus oseotomy and intraoral vertical ramus osteotomy have
been commonly performed for the correction of mandibular prognathism, occurred to
abundant oriental people. Many authors have studied the soft tissue change after
orthognathic surgery, especially between mandibular hard tissues and soft tissue of
lower lip, but the study of upper lip change is comparatively little.
Therefore, we studied the 12 patients, operated only sagittal split ramus osteotomy
without genioplasty or maxillary osteotomy in department of oral and maxillofacial
surgery, Hanyang university hospital from 1996.1. 1. to 1998. 7. 20.
Preoperative and postoperative cephalometric view was measured to know the change
of upper lip position and shape after mandibular setback.
The result were obtained as follows.
1. The ratio of upper lip change amount to lower incisor horizontal movement was
15.1%.
2. The ratio of lower facial profile between Sn-Stm and Stm-Mes was changed from
1 : 2.352 to 1 : 2.069 after operation.
3. Post-operative upper lip was flattened 72.4% compared with pre-opreative one.
4. The vermilion zone of the upper lip increased 56% horizontally, 5.8% vertically after
operation.
5. The vermilion zone ratio of the lower lip to the upper lip was change from 1 :
1.253 to 1 : 1.348.
6. The distance between esthetic line and Ls was changed from -3.958§® to -1.15§®.

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