하악골 전돌증 환자에서 양악 수술과 하악 단독 수술의 술 후 안정성에 관한 연구 : Jaw Surgery And Single Mandibular Surgery in Mandibular Prognathism = Stability of Two-Jaw Surgery And Single Mandibular Surgery in Mandibular Prognathism

다국어 초록 (Multilingual Abstract)

Le-Fort Ⅰ Osteotomy is considered by many surgeons to be a safe and predictable method for correcting various dentofacial deformities. However, there are controversial options concerning the stability of two-jaw surgery (Le-Fort Ⅰ osteotomy and sagittal split ramus osteotomy) compared to single mandibular surgery (sagittal split ramus osteotomy).
The purpose of this study was to evaluate the post-operative stability of mandible in two-jaw surgery and single mandibular surgery, to help the establishment of accurate treatment planning in patients with a skeletal class Ⅲ malocclusion.
There were 15 patients who had been undergone two-jaw surgery and 20 patients who had been undergone single mandibular surgery. Lateral cephalograms of these 2groups ; Preoperation and immediate postoperation, postoperatively 1month, postoperatively 3months, at the latest follow up(＞6months) ; were analyzed by linear measurement to evaluate changes in position (hard tissue B, Pogonion point) and compare relapse both group. The results obtained were as follows ;
In view of B-point, the horizontal relapse rate of single mandibular surgery was 10.17% at post-op 1months, 12.52% at post-op 3months, 13.01% at post-op 6months and two-jaw surgery was 10.23% at post-op 1month, 11.84% at post-op 3months, 12.97% at post-op 6months. the horizontal relapse rates of Pogonion point were 10.78 at post-op 1month, 12.21% at post-op 3months, 12.98% at post-op 6months in single mandibular surgery and those were 10.27% at post-op 1month, 11.33% at post-op 3months, 12.01% at post-op 6months in two-jaw surgery.
In terms of vertical relapse rate, rates of B point were 22.96% at post-op 1month, 28.30% at post-op 3months, 29.56% at post-op 6months in single
mandibular surgery and 21.14% at post-op 1month, 25.45% at post-op 3months, 28.86% at post-op 6months in two-jaw surgery. Those of Pogonion point were 26.63% at post-op 1month, 28.40% at post-op 3months, 29.29% at post-op 6months in single mandibular surgery and 20.20% at post-op 1month, 25.44 at post-op 3months, 27.68% at post-op 6months in two-jaw surgery.
There were no statistical difference between single mandibular surgery and two-jaw surgery in mandibular stability.

목차 (Table of Contents)

• Ⅰ. 서론
• Ⅱ. 연구 재료 및 방법
• Ⅲ. 연구 성적
• Ⅳ. 총괄 및 고찰
• Ⅴ. 결론
• 참고문헌
• ABSTRACT