Orthognathic surgery on Skeletal Class III patiens with collapsed vertical dimension: case report

수직고경이 붕괴된 골격성 III급 부정교합자의 악교정 수술 치험례

  • Choi, Youn-Kyung (Department of Orthodontics, Pusan National University Hospital) ;
  • Kim, Yong-Deok (Department of Oral and maxillofacial surgery, School of Dentistry, Pusan National University) ;
  • Park, Soo-Byung (Department of Orthodontics, School of Dentistry, Pusan National University) ;
  • Kim, Yong-Il (Department of Orthodontics, School of Dentistry, Pusan National University) ;
  • Kim, Seong-Sik (Department of Orthodontics, School of Dentistry, Pusan National University) ;
  • Son, Woo-Sung (Department of Orthodontics, School of Dentistry, Pusan National University)
  • 최윤경 (부산대학교병원 치과교정과) ;
  • 김용덕 (부산대학교 치의학전문대학원 구강악안면외과) ;
  • 박수병 (부산대학교 치의학전문대학원 치과교정과) ;
  • 김용일 (부산대학교 치의학전문대학원 치과교정과) ;
  • 김성식 (부산대학교 치의학전문대학원 치과교정과) ;
  • 손우성 (부산대학교 치의학전문대학원 치과교정과)
  • Received : 2015.08.13
  • Accepted : 2016.03.02
  • Published : 2016.03.31


Patients who lost posterior teeth due to periodontitis or dental caries have collapsed vertical dimension, unstable occlusion and change of the mandibular position. In particular, patients in orthognathic surgery, clinician should re-establish the pre-operative stable position of mandibular condyle in articular fossa and favorable vertical dimension for high post-operative stability of mandible. Therefore, interdisciplinary approach and co-operation, including prosthetics, orthodontics, oral and maxillofacial surgeon, from diagnosis and treatment plan is important to get a good outcome. This case report was patients who had collapsed occlusal plane due to severe dental caries on maxillary molars with skeletal Class III malocclusion. Before orthognathic surgery, resetting of maxillary occlusal plane with temporary removable denture was performed. Then successful multidisciplinary approach was done and lead to acceptable clinical outcome.


posterior teeth missing;bite collapse;vertical dimension;condyle position;orthognathic surgery;interdisciplinary approach


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