Le Fort Ⅰ골 절단술에 의한 악교정 수술후 연조직 변화에 관한 연구
SOFT TISSUE CHANGES ASSOCIATED WITH Le Fort Ⅰ MAXILLARY ADVANCEMENT
- 대한구강악안면외과학회
- 대한구강악안면외과학회지
- 대한구강악안면외과학회지 제10권 제2호
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1984.12175 - 182 (8 pages)
- 5

From the patient s standpoint, the result of orthognathic surgery will mainly be judged by the soft tissue configuration obtained. The prediction of soft-tissue changes following orthognathic surgery is very important to plan a successful treatment. To aid In prediction of postoperative upper lip and nose position following maxillary orthognathic surgery, retrospective investigation of soft-tissue changes associated with maxillary advancement (Le Fort Ⅰ osteotomy) was performed. The following conclusions were drawn. 1) Soft tissue landmarks (Pn, Sn, Ls) moved in a anterior and superior directions following maxillary advancement. 2) The mean ratio for hPn/hANS is 0.2±0.15. The mean ratio for vPn/hANS is 0.15±0.13 3) The mean ratio for hSn/hA is 0.54±0.14 The man ratio for vSn/hA is 0.15±0.05 4) The mean ratio for hLs/hPr is 0.64±0.20 The mean ratio for vLs/hPr is 0.2±0.16 5) A progressive increase in the horizontal soft-tissue movement from the tip of the nose (Pn) to the free end of the upper lip was observed. 6) A decrease in lip thickness was observed with a mean of -1.4㎜ at A point.
Ⅰ. 서론
Ⅱ. 연구대상 및 방법
Ⅲ. 연구성적
Ⅳ. 총괄 및 고찰
Ⅴ. 결론
참고문헌
ABSTRACT
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