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A Study on the mandibular setback osteotomy and reduction genioplasty in mandibular prognathism with long anterior facial height

Korean Journal of Orthodontics 2000³â 30±Ç 3È£ p.343 ~ 354
À念ÀÏ, ÀÓµ¿Çõ, ¼­Á¤ÈÆ, ±èÅ¿ì,
¼Ò¼Ó »ó¼¼Á¤º¸
À念ÀÏ (  ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç
ÀÓµ¿Çõ (  ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç
¼­Á¤ÈÆ (  ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç
±èÅ¿ì (  ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°ú±³Á¤Çб³½Ç

Abstract

kabstract :
º» ¿¬±¸´Â °úµµÇÑ ÇÏ¾È¸é °í°æÀ» µ¿¹ÝÇÏ´Â ÇϾÇÀüµ¹Áõ ȯÀÚÀÇ ¾Ç±³Á¤¼ö¼ú½Ã ÇϾǰñÈÄÅð
¼ú°ú À̺Π°¨¼Ò ¼ºÇü¼úÀ» µ¿½Ã¿¡ ½ÃÇàÇÑ °æ¿ìÀÇ °æÁ¶Á÷°ú ¿¬Á¶Á÷ÀÇ º¯È­¿¡ ´ëÇØ »ìÆ캸°í,
±× »ó°ü¼ºÀ» Æò°¡ÇÏ¿© ÇâÈÄ Áø´Ü½Ã º¸Á¶ÀÚ·á·Î¼­ »ç¿ëÇÏ°íÀÚ ½ÃÇàÇÏ¿´´Ù.
°ñ°Ý¼º ¥²±Þ ºÎÁ¤±³ÇÕÀ¸·Î Áø´ÜµÇ¾î ¼úÀü ±³Á¤Ä¡·á¸¦ ¹Þ°í ÇϾǰñ ÈÄÅð¼ú¸¸À» ½ÃÇàÇÑ ¼º
ÀΠȯÀÚ 20¸íÀ» ´ëÁ¶±º(A±º)À¸·Î, ¾È¸ðÀÇ ¼öÆòÀû ¹× ¼öÁ÷Àû ºÎÁ¶È­°¡ ½ÉÇÑ °ñ°Ý¼º ¥²±Þ ºÎ
Á¤±³ÇÕÀ¸·Î Áø´ÜµÇ¾î ¼úÀü ±³Á¤Ä¡·á¸¦ ¹Þ°í ÇϾǰñÈÄÅð¼ú°ú À̺Π°¨¼Ò ¼ºÇü¼úÀ» ÇÔ²² ½ÃÇà
ÇÑ ¼ºÀΠȯÀÚ 20¸íÀ» ½ÇÇ豺(B±º)À¸·Î ÇÏ¿´´Ù. µÎ ±ºÀÇ °æÁ¶Á÷ º¯È­¿¡ ´ëÇÑ ¿¬Á¶Á÷ º¯È­¾ç
»ó°ú, °æÁ¶Á÷ º¯È­¿¡ µû¸¥ ¿¬Á¶Á÷ÀÇ À̵¿ ºñÀ²À» ºñ±³ ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. A, B±º ¸ðµÎ¿¡¼­ °æÁ¶Á÷ÀÇ ÈĹæ À̵¿°ú ÇϾȸé ÇϺΠ2/3ÀÇ ¿¬Á¶Á÷(Ils, Pog', Me')ÀÇ ¼ö
ÆòÀû º¯È­´Â ³ôÀº »ó°ü¼ºÀ» º¸¿´À¸¸ç, B±º¿¡¼­´Â A±º¿¡¼­º¸´Ù Ls, Stm, LiÀÇ ¼öÆòÀû º¯È­
¿¡µµ Áߵ ÀÌ»óÀÇ »ó°ü¼ºÀ» º¸¿´´Ù.
2. B±ºÀÇ °æÁ¶Á÷ÀÇ ¼öÁ÷ À̵¿¿¡ µû¸¥ ¿¬Á¶Á÷ÀÇ ¼öÁ÷Àû º¯È­ÀÇ »ó°ü¼ºÀº Point B-Ils,
Me-Me'À» Á¦¿ÜÇÏ°í´Â A±ºº¸´Ù ÀûÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
3. °æÁ¶Á÷ÀÇ º¯È­¿¡ ´ëÇÑ ¿¬Á¶Á÷ÀÇ º¯È­À²À» ºñ±³ÇØ º¸¸é, B±ºÀÇ °æ¿ì Pog'ÀÇ ÈĹæÀ̵¿ ºñ
À²ÀÌ A±º¿¡¼­º¸´Ù Àû°Ô ³ªÅ¸³µ°í, B±ºÀÇ Ils, Pog', Me'ÀÇ »ó¹æÀ̵¿ ºñÀ²Àº °¢°¢ 32%,
54%, 60%·Î ³ªÅ¸³µ´Ù.
4. ¾È¸éÀÇ ¼öÁ÷ °í°æ¿¡ ´ëÇؼ­´Â A, B±º ¸ðµÎ¿¡¼­ ÇÏ¾È¸é °í°æÀÇ À¯ÀÇÇÑ °¨¼Ò·Î Àü¾È¸é °í
°æ¿¡ ´ëÇÑ ÇÏ¾È¸é °í°æÀÇ ºñÀ²ÀÌ °¨¼ÒÇÏ¿´À¸³ª, B±º¿¡¼­´Â ÇÏ¾È¸é »óºÎ1/3(Sn-Stm)ÀÇ ºñÀ²
Àº º¯È­ ¾ç»óÀÌ À¯ÀǼºÀÖ°Ô ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù.
5. À̺Π°¨¼Ò ¼ºÇü¼úÀº ÇϾÇÈÄÅð¼ú°ú ÇÔ²² ½ÃÇàÇÑ ÇÏ¾È¸é »óºÎ 1/3(Sn-Stm)ÀÇ ¾È¸ðºñÀ²¿¡
´ëÇÑ º¯È­°¡ Àû°í, ÇϾȸé ÇϺΠ2/3(St-Me')ÀÇ °í°æÀ» °¨¼Ò½Ãų¼ö ÀÖ´Â ¼ú½ÄÀÌ´Ù.
#ÃÊ·Ï#
-Abstract-
The purpose of this study was to evaluate the amount and interrelationship of hard
and soft tissue changes after mandibular setback osteotomy and reduction genioplasty in
mandibular prognathism with long anterior facial height.
The control group (Group A) consisted of 20 patients who had severe horizontal
discrepancy. They experienced presurgical orthodontic treatment and orthognathic
surgery via mandibular setback.
The experimental group (Group B) consisted of 20 patients who had severe horizontal
and vertical discrepancy. They experienced presurgical orthodontic treatment and
orthognathic surgery via mandibular setback and reduction genioplasty.
The presurgical and postsurgical lateral cephalograms were valuated. The computerized
statistical analysis was carried on with EXCEL 97 program.
The results were as follows :
1. The correlation of hard and soft tissue horizontal changes in lower 2/3 of lower
anterior facial height were high for both groups. The correlation coefficients of hard
tissue changes and Ls, Stm, Li changes in group B were moderately higher than Group
A.
2. The correlation of hard and soft tissue vertical changes in Group B were lower than
Group A. (except for pointB-Ils, Me-Me')
3. The ratio for soft tissue to Pog in Group B was lower than Group A. The ratios of
hard and soft tissue vertical changes were 32% at Ils, 54% at Pog', and 60% at Me'.
4. The ratio of lower anterior facial height to total anterior facial height was reduced for
both group. But ratio of upper 1/3 of lower anterior facial height to total anterior facial
height did not changed significantly in Group B.
5. Reduction genioplasty combined with mandibular setback procedure showed no change
in upper one third(Sn-Stm) and significant decrease(Stm-Me') in the lower two thirds
of the soft-tissue anterior lower facial height.

Å°¿öµå

ÇÏ¾È¸é °í°æ; ÇϾǰñ ÈÄÅð¼ú; À̺Π°¨¼Ò ¼ºÇü¼ú; ¿¬Á¶Á÷ º¯È­; Lower anterior facial height; Mandibular setback; Reduction genioplasty; Soft tissue changes;

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