Maxillofacial Plastic and Reconstructive Surgery

Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
권호 표지

A CEPHALOMETRIC AND PANORAMIC ANALYSIS OF THE CHANGES OF THE CONDYLAR POSITION AFTER ORTHOGNATHIC SURGERY

하악전돌증 환자의 악교정 수술후 하악과두의 위치변화에 대한 연구

  • Kang, Young-Ki (Department. of Oral & Maxillofacial Surgery, College of Dentistry, Pusan National University) ;
  • Kim, Jong-Ryoul (Department. of Oral & Maxillofacial Surgery, College of Dentistry, Pusan National University) ;
  • Yang, Dong-Kyu (Department. of Oral & Maxillofacial Surgery, College of Dentistry, Pusan National University)
  • 강영기 (부산대학교 치과대학 구강악안면외과학교실) ;
  • 김종렬 (부산대학교 치과대학 구강악안면외과학교실) ;
  • 양동규 (부산대학교 치과대학 구강악안면외과학교실)
  • Published : 2000.12.31
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Abstract

Purpose: This study was aimed at analysis of the changes in the condyle position in subjects with mandibular setback osteotomies Method: Twenty patients were evaluated retrospectively for their changes in the condyle position who underwent surgical mandibular setback using bilateral sagittal split osteotomies with a manual condyle repositioning technique and rigid fixation. The cephalometric and panoramic analysis was performed preoperatively, 1 week, 6 months, and 1 year postoperatively. And postoperative noise, temporomandibular joint pain, and mouth opening were clinically examined 2 months, 4 months, 6 months, 8 months, 10 months, and 12 months postoperatively. Result: The condyles rotated posteriorly and laterally immediately after surgery, and they returned to the preoperative position during follow-up period but it is not significant. The statistical analysis (Paired t-test) showed no significant effects in postsurgical stability. The changes in the condyle position didn't have a significant harmful influence on temporomandibular joint disorder. Conclusion: A careful surgical mandibular setback using manual condyle repositioning and fixation technique will move condyle minimally and that will decrease the relapse and temporomandibular joint disorder.

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