Journal of the Korean Association of Oral and Maxillofacial Surgeons

The Korean Association of Oral and Maxillofacial Surgeons (대한구강악안면외과학회)
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THE EVALUATION OF REPRODUCIBILITY OF OPERATION PLAN WITH THE COMPARISON BETWEEN STO AND POST-OPERATIVE JAW POSITION IN ORTHOGNATHIC SURGERY

악교정 수술에서 STO와 술 후 악골위치 비교를 통한 이동량 재현성에 대한 평가

  • Kwon, Seok-Woo (Department of Oral & Maxillofacial Surgery, graduate shool of Dentistry, Kyunghee University) ;
  • Jee, Yu-Jin (Department of Oral & Maxillofacial Surgery, Dental Hospital, East-West Neo Medical Center, Kyunghee University) ;
  • Lee, Baek-Soo (Department of Oral & Maxillofacial Surgery, Dental Hospital, Kyunghee University) ;
  • Lee, Deok-Won (Department of Oral & Maxillofacial Surgery, graduate shool of Dentistry, Kyunghee University)
  • 권석우 (경희대학교 일반대학원 치의학과 구강악안면외과학교실) ;
  • 지유진 (경희대학교 동서신의학병원 치대병원 구강악안면외과) ;
  • 이백수 (경희대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 이덕원 (경희대학교 일반대학원 치의학과 구강악안면외과학교실)
  • Published : 2008.12.31
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Abstract

The purpose of this study is to examine reproducibility of operation plan and 3-dimentional jaw movement patterns by comparing jaw position of STO with post-operative jaw position. Twenty patients with class III dental and skeletal malocclusion who were treated with Le-Fort I osteotomy and B-SSRO were reviewed. Lateral cephalometric radiographs were taken within two weeks before operation and two days after operation. Cephalometric radiographs were compared and analyzed with orthognathic computer program '$V-Ceph^{TM}$'. Post-operative maxillary advancement was insufficient compared to maxillary advancement through STO. Post-operative setback movement was over compared to mandibular setback movement through STO. But statistically this is not significant. Maxillary vertical location is insignificant on the whole. Especially post-operative maxillary clockwise rotation is significant compared to maxillary rotation through STO. Post-operative maxillary clockwise rotation tendency is generally observed in all patients. So surgeons and staffs must consider this tendency when operation plan is established ans operation is being performed. Using intra or extra oral marking points, face bow, and bite plate will make exact surgery possible.

Keywords

References

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