Journal of the Korean Association of Oral and Maxillofacial Surgeons

  • 제37권4호
  • /
  • Pages.264-271
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  • 2011
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  • 2234-7550(pISSN)
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  • 2234-5930(eISSN)
대한구강악안면외과학회 (The Korean Association of Oral and Maxillofacial Surgeons)
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하악전돌증 환자의 양악 수술 시 상악골 후상방 회전이동 여부에 따른 안면부 경조직 변화량에 대한 비교 연구

A comparative study on the change of postoperative facial hard tissue profile after maxillary rotational surgery

  • 김욱규 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 이성탁 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김태훈 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 송재민 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 황대석 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 정인교 (부산대학교 치의학전문대학원 구강악안면외과학교실)
  • Kim, Uk-Kyu (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University) ;
  • Lee, Sung-Tak (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University) ;
  • Kim, Tae-Hoon (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University) ;
  • Song, Jae-Min (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University) ;
  • Hwang, Dae-Seok (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University) ;
  • Chung, In-Kyo (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University)
  • 투고 : 2011.04.14
  • 심사 : 2011.07.25
  • 발행 : 2011.08.31
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초록

Purpose: This study evaluated retrospectively the postsurgical facial hard tissue profile of a Le Fort I osteotomy with/without posterior impaction and rigid internal fixation to correct mandibular prognathism. After observing a difference between the two groups, this measurement was used to prepare a treatment plan for 2-jaw surgery. Patients and Methods: Thirty patients who had undergone orthognathic surgery in Pusan National University Dental Hospital were enrolled in this study. Fifteen patients were treated using a Le Fort I osteotomy with posterior impaction and mandibular setback bilateral sagittal split ramus osteotomy, and the other fifteen patients were treated without posterior impaction. The preoperative (T0), immediate postoperative (T1) and six-month follow-up period (T2) cephalograms were taken and difference between T1-T0 and T2-T2 was analyzed. Results: Both groups was FH-ABp, SNB and ANB showed significant changes in the measurement, whereas only the posterior impaction group showed a change in the SN-U1, occlusal plane, posterior facial height, surgical movement difference from the L1 and B-point. There was no significant statistical change between the immediate postoperative (T1) and six-month follow-up (T2) hard tissue analysis in the two groups. Conclusion: A Le Fort I osteotomy with posterior impaction is considerable for patients with a flat occlusal plane angle, large posterior facial height, prominent B-point, pogonion and labioversed incisal inclination if the indications are well chosen.

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참고문헌

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