Maxillofacial Plastic and Reconstructive Surgery

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

CEPHALOMETRIC ANALYSIS OF POSTSURGICAL BEHAVIOR OF MANDIBULAR PROGNATHISM

하악전돌증의 술후 동태에 관한 두부계측학적 분석

  • Kim, Jong-Ryoul (Department of Oral and Maxillofacial Surgery, College of Dentistry, Pusan National University) ;
  • Kim, Tae-Kyu (Department of Oral and Maxillofacial Surgery, College of Dentistry, Pusan National University) ;
  • Chung, In-Kyo (Department of Oral and Maxillofacial Surgery, College of Dentistry, Pusan National University) ;
  • Yang, Dong-Kyu (Department of Oral and Maxillofacial Surgery, College of Dentistry, Pusan National University) ;
  • Park, Sao-Byung (Department of Orthodontics, College of Dentistry, Pusan National University) ;
  • Son, Woo-Sung (Department of Orthodontics, College of Dentistry, Pusan National University) ;
  • Rhee, Byung-Tae (Department of Orthodontics, College of Dentistry, Pusan National University)
  • 김종렬 (부산대학교 치과대학 악안면구강외과학 교실) ;
  • 김태규 (부산대학교 치과대학 악안면구강외과학 교실) ;
  • 정인교 (부산대학교 치과대학 악안면구강외과학 교실) ;
  • 양동규 (부산대학교 치과대학 악안면구강외과학 교실) ;
  • 박수병 (부산대학교 치과대학 치과교정학 교실) ;
  • 손우성 (부산대학교 치과대학 치과교정학 교실) ;
  • 이병태 (부산대학교 치과대학 치과교정학 교실)
  • Published : 1993.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

For the purpose of studying postsurgical stability of mandibular prognathism, 18 patients(8 men and 10 women) were selected who underwent sagittal split ramus osteotomy and lateral cephalograms taken preoperatively, immediate postoperatively, and over 6-month follow-up were traced and analysed. The following results were obtained. 1. Average magnitude of setback vas 11.0mm, and aberage relapse was 3.0mm, so the rate of relapse was 27%. 2. Magnitude of mandibular setback contributed to relapse. 3. The patients of less than 10mm setback showed average 10% of relapse rate, and it was of little clinical significance. 4. Proper detachment of pterygomasseteric sling prevention of clockwise rotation of proximal segment and rigid fixation are recommended for the better postoperative stability.

Keywords