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SOFT TISSUE CHANGES FOLLOWING BIMAXILLARY SURGERY IN SKELETAL CLASS III MALOCCLUSION PATIENTS

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À¯º¸¿µ (  ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­¾Ç¾È¸é¿Ü°úÇб³½Ç

Abstract

°á·Ð
º» ¿¬±¸¿¡¼­´Â ¾ç¾Ç ¼ö¼úÈÄ °æÁ¶Á÷ º¯È­¿¡ µû¶ó ¿¬Á¶Á÷ÀÌ ¾î¶»°Ô º¯È­Çϴ°¡¸¦ ¾Ë¾Æº¸±â
À§ÇÏ¿©, Àü³²´ëÇб³º´¿ø ±¸°­¾Ç¾È¸é¿Ü°ú¿¡¼­ °ñ°Ý¼º III±Þ ºÎÁ¤±³ÇÕÀ¸·Î Áø´ÜµÇ¾î ¾ç¾Ç ¼ö¼ú
À» ½ÃÇà¹ÞÀº 20¸íÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿© »ó¾Ç°ñÀ» Àü»ó¹æ ¹× ÇϾǰñÀ» ÈĹæÀ¸·Î À̵¿½ÃŲ
1±º°ú »ó¾Ç°ñÀ» ÀüÇÏ¹æ ¹× ÇϾǰñÀ» ÈĹæÀ¸·Î À̵¿½ÃŲ 2±ºÀ¸·Î ºÐ·ùÇÏ°í, ¼úÀü ¹× ¼úÈÄ 1
³â¿¡ °¢°¢ ÃÔ¿µÇÑ µÎºÎ±Ô°Ý¹æ»ç¼±»çÁøÀÇ Åõ½Ãµµ¿¡¼­ °æÁ¶Á÷°ú ¿¬Á¶Á÷ °èÃøÄ¡¸¦ ÃøÁ¤ ºñ±³ÇÏ
¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. °æÁ¶Á÷¿¡ ´ëÇÑ ¿¬Á¶Á÷ÀÇ ¼öÆòº¯È­À²Àº 1±º¿¡¼­ Nt´Â ANSÀÇ 1:0.60, Ls´Â UIÀÇ 1:0.79,
Li´Â LIÀÇ 1:0.47, PogÀº PogÀÇ 1:0.63ÀÌ ¾ú°í, 2±º¿¡¼­ Nt´Â ANSÀÇ 1:0.59, Ls´Â UIÀÇ
1:0.48, Li´Â LIÀÇ 1:0.83, sPogÀº PogÀÇ 1:1.09¿´À¸¸ç, »ó¼ø°ú Çϼø ¹× À̺ÎÀÇ º¯È­À²¿¡¼­ ºñ
±³Àû ³ôÀº »ó°ü°ü°è¸¦ º¸¿´´Ù.
2. °æÁ¶Á÷¿¡ ´ëÇÑ ¿¬Á¶Á÷ÀÇ ¼öÁ÷º¯È­À²Àº 1±º¿¡¼­ Nt´Â ANSÀÇ 1:0.72, Li´Â LIÀÇ 1:0.06ÀÌ
¾ú°í, ³ª¸ÓÁö´Â ³·Àº »ó°ü°ü°è¸¦ º¸¿´´Ù.
3. °æÁ¶Á÷ º¯È­¿¡ ´ëÇÑ »ó¼øÀÇ ¼öÆòº¯È­À²Àº »ó¾Ç°ñ »ó¹æ À̵¿½Ã¿¡ ´õ Å« º¯È­¸¦ º¸¿´°í, 1
±º¿¡¼­ LIÀÇ 1:-0.82, 2±º¿¡¼­ UIÀÇ 1:0.48, LIÀÇ 1:0.01À̾ú´Ù.
4. °æÁ¶Á÷ÀÇ º¯È­¿¡ ´ëÇÑ ÇϼøÀÇ ¼öÆòº¯È­´Â »ó¾Ç°ñ Àü¹æ À̵¿°ú ÇϾǰñ ÈĹæ À̵¿¿¡ µû¶ó
ÈĹæÀ¸·Î À̵¿ÇÏ¿´°í, ÇϼøÀÇ ¼öÆòº¯È­À²Àº 1 ±º¿¡¼­ LIÀÇ 1:0.47À̾úÀ¸¸ç ±×¹ÛÀÇ Ç׸ñµéÀº
Åë°èÀûÀ¸·Î ³·Àº »ó°ü °ü°è¸¦ º¸¿´´Ù.
5. »ó¼øÀº 1±º°ú 2±º¿¡¼­ °¢°¢ 1.59mm, 0.95mmÀÇ µÎ²² °¨¼Ò¿Í 1.35mm, 2.65mmÀÇ ±æÀÌ
Áõ°¡¸¦ º¸¿´´Ù.
6. °æÁ¶Á÷ À̵¿¿¡ ´ëÇÑ »ó¼ø µÎ²²ÀÇ º¯È­À²Àº 1±º¿¡¼­ ANSÀÇ 1:-0.38, UIÀÇ 1:-0.37, LIÀÇ
1:0.11À̾ú°í, 2±º¿¡¼­µµ 1±º¿¡¼­¿Í °°Àº °æÇâÀ» º¸¿´À¸³ª ³·Àº »ó°ü°ü°è¸¦ º¸¿´´Ù.
ÀÌ»óÀÇ °á°ú´Â ¾ç¾Ç ¼ö¼ú ÈÄ °æÁ¶Á÷ º¯È­¿¡ ´ëÇÑ ¿¬Á¶Á÷ º¯È­°¡ 1±º°ú 2±º¿¡¼­ °¢°¢ »ó¼ø
¿¡¼­´Â 79%¿Í 48%, Çϼø¿¡¼­´Â 47%¿Í 83%, ±×¸®°í À̺ÎÀÇ ¿¬Á¶Á÷¿¡¼­´Â 63%¿Í 109% Á¤
µµ¿´À¸¸ç, »ó¼øÀÇ µÎ²² °¨¼Ò¿Í ±æÀÌ Áõ°¡ÀÇ °æÇâÀ» ³ªÅ¸³Â´Ù.
#ÃÊ·Ï#
The purpose of this study was to assess the soft tissue changes using twenty skeletal
class III malocclusion patients who treated with bimaxillary surgery for the correction of
dentofacial deformities. Pationts were devided into two groups. One was impaction and
advancement of maxilla with mandibular set-back (Group 1), the other was downward
and advancement of maxilla with mandibular set-back (Group 2). Preoperative and
postoperative one year cephalometric data were analyzed and compared. Results obtained
were as follows :
1. The ratio of horizontal changes of soft tissue to hard tissue at Nt to ANS, Ls to
UI, Li to LI sPog to Pog were 1:0.06, 1:0.79, 1:0.47, 1:0.63 in group 1 respectively, and
1:0.59, 1:0.48, 1:0.83, 1:1.09 in group 2 respectively. Soft tissue changes were highly
predictable at the upper lip, lower lip, and chin area.
2. The ratio of vertical changes of soft tissue to hard tissue at Nt to ANS, Li to LI
were 1:0.72, 1:0.06 in group 1, and others showed no statistically significant signigicant
difference.
3. The ratio of Ls to hard tissue movements at LI(h) was 1:-0.82 in group 1 and at
UI(h), LI(h) were 1:0.48, 1:0.001 in group 2. These ratios of group 1 were greater than
those of group 2.
4. The direction of horizontal change of Li was the same as that of hard tissue
change. The ratio of horizontal changes of Li to LI was 1:0.47 in group 1 and others
showed no statistically signigicant difference.
5. The changes of upper lip thickness and length were -1.6mm, -1.4mm in group 1,
and -1mm, -2.7mm in group 2.
6. The ratios of thickness of upper lip to ANS, UI, LI were 1:-0.83, 1:-0.37, 1:0.11 in
group 1. There was similar trend in group 2, and there were no statistically signigicant
difference.
These results suggest that prediction of changes in soft tissue of upper lip, lower lip,
and chin were 79%, 47%, and 63% in group 1, and 48%, 83%, and 109% in group 2.
There was a tendency to decrease in thickness and increase in length of the upper lip.

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soft tissue changes; bimaxillary surgeryobligaton :form :back :inputday : 19991020;

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