Evaluation of Relapse according to Set-back Degree of the Mandible at Bilateral Sagittal Split Ramus Osteotomy in Mandibular Prognathism Patients

골격성 3급 부정교합 환자에서 양측 상행지 시상분할 골절단술을 이용한 하악 후방이동 시 이동량에 따른 회귀현상

  • Yoo, Kyung-Hwan (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University) ;
  • Kim, Su-Gwan (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University) ;
  • Moon, Seong-Yong (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University) ;
  • Oh, Ji-Su (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University) ;
  • Kim, Saeng-Gon (Department of Human Biology, School of Dentistry, Chosun University) ;
  • Park, Jin-Ju (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University) ;
  • Jung, Jong-Won (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University) ;
  • Yoon, Dae-Woong (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University) ;
  • Yang, Seong-Su (Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University)
  • 유경환 (조선대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김수관 (조선대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 문성용 (조선대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 오지수 (조선대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김생곤 (조선대학교 치의학전문대학원 인체생물학교실) ;
  • 박진주 (조선대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 정종원 (조선대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 윤대웅 (조선대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 양성수 (조선대학교 치의학전문대학원 구강악안면외과학교실)
  • Received : 2010.10.28
  • Accepted : 2011.07.02
  • Published : 2011.07.31

Abstract

Purpose: The purpose of this study was to examine the appropriate degree of set-back of the mandible by evaluating the rate of relapse after surgery. Methods: Among the patients who visited our hospital from January 2002 to January 2007 and who underwent orthognathic surgery, of the patients available for follow-up observation, the rate of relapse after surgery was investigated according to the set-back degree. The patients were divided into groups by the degree of set-back, and relapse was evaluated by the radiographs performed the day after surgery, 6 months after surgery, 1 year after surgery, 2 years after surgery and 3 years after surgery. Results: In cases that exceeded the limit of posterior movement of the mandible (13 mm) or that had the wrong position of the condyle, a greater tendency toward relapse was shown. Conclusion: Based on the results of this study, among the cases that required a large amount of posterior movement of the mandible, two jaw surgeries accompanied by bilateral sagittal split ramus osteotomy (BSSRO) and LeFort I osteotomy are recommended.

Keywords

References

  1. Trauner R, Obwegeser H. The surgical correction of mandibular prognathism and retrognathia with consideration of genioplasty. I. Surgical procedures to correct mandibular prognathism and reshaping of the chin. Oral Surg Oral Med Oral Pathol 1957;10:677-89. https://doi.org/10.1016/S0030-4220(57)80063-2
  2. Dal Pont G. Retromolar osteotomy for the correction of prognathism. J Oral Surg Anesth Hosp Dent Serv 1961;19:42-7.
  3. Watzke IM, Turvey TA, Phillips C, Proffit WR. Stability of mandibular advancement after sagittal osteotomy with screw or wire fixation: a comparative study. J Oral Maxillofac Surg 1990;48:108-21; discussion 122-3. https://doi.org/10.1016/S0278-2391(10)80197-1
  4. The Korean Association Of Maxillofacial Plastic and Reconstructive Surgeons: Textbook of maxillofacial plastic and reconstructive surgery. 1st ed. Seoul: Dental&Medical publishing co; 2004. p.200-2.
  5. Peterson LJ, Marciani RD. Principle of oral and maxillofacial surgery. 2nd ed. In: Bloomquest DS, Lee JJ, editors. Principles of mandibular orthognathic surgery. London: BC Decker Inc; 2004. p.1135-40.
  6. Karas ND, Boyd SB, Sinn DP. Recovery of neurosensory function following orthognathic surgery. J Oral Maxillofac Surg 1990;48:124-34. https://doi.org/10.1016/S0278-2391(10)80199-5
  7. Bailey LJ, Duong HL, Proffit WR. Surgical class III treatment: long-term stability and patient perceptions of treatment outcome. Int J Adult Orthod Orthognath Surg 1998;13:35-44.
  8. Mobarak KA, Krogstad O, Espeland L, Lyberg T. Long-term stability of mandibular setback surgery: a follow-up of 80 bilateral sagittal split osteotomy patients. Int J Adult Orthod Orthognath Surg 2000;15:83-95.
  9. Hiatt WR, Schelkun PM, Moore DL. Condylar positioning in orthognathic surgery. J Oral Maxillofac Surg 1988;46:1110-2. https://doi.org/10.1016/0278-2391(88)90461-2
  10. Blomqvist JE, Ahlborg G, Isaksson S, Svartz K. A comparison of skeletal stability after mandibular advancement and use of two rigid internal fixation techniques. J Oral Maxillofac Surg 1997;55:568-74. https://doi.org/10.1016/S0278-2391(97)90486-9
  11. Schatz JP, Tsimas P. Cephalometric evaluation of surgical- orthodontic treatment of skeletal class III malocclusion. Int J Adult Orthod Orthognath Surg 1995;10:173-80.
  12. Chou JI, Fong HJ, Kuang SH, et al. A retrospective analysis of the stability and relapse of soft and hard tissue change after bilateral sagittal split osteotomy for mandibular setback of 64 Taiwanese patients. J Oral Maxillofac Surg 2005;63: 355-61. https://doi.org/10.1016/j.joms.2004.05.228
  13. de Villa GH, Huang CS, Chen PK, Chen YR. Bilateral sagittal split osteotomy for correction of mandibular prognathism: long-term results. J Oral Maxillofac Surg 2005;63:1584- 92. https://doi.org/10.1016/j.joms.2005.03.031
  14. Kwon TG, Mori Y, Minami K, Lee SH, Sakuda M. Stability of simultaneous maxillary and mandibular osteotomy for treatment of class III malocclusion: an analysis of three-dimensional cephalograms. J Craniomaxillofac Surg 2000;28: 272-7. https://doi.org/10.1054/jcms.2000.0158