Maxillofacial Plastic and Reconstructive Surgery

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

A RADIOGRAPHIC STUDY OF CHANGES OF UPPER RESPIRATORY AIRWAY SPACE AFTER ORTHOGNATHIC SURGERY OF BOTH JAWS IN PATIENTS WITH SKELETAL CLASS III MALOCCLUSION

골격성 제3급 부정교합자의 양악 수술 후 상기도 공간의 변화에 관한 두부 계측 방사선학적 연구

  • Joo, Bum-Ki (Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University (Yongdong Severance Dental Hospital)) ;
  • Kim, Jin-Tae (Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University (Yongdong Severance Dental Hospital)) ;
  • Cho, Myung-Chul (Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University (Yongdong Severance Dental Hospital)) ;
  • Huh, Jong-Ki (Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University (Yongdong Severance Dental Hospital)) ;
  • Kim, Hyung-Gon (Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University (Yongdong Severance Dental Hospital)) ;
  • Park, Kwang-Ho (Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University (Yongdong Severance Dental Hospital))
  • 주범기 (연세대학교 치과대학 구강악안면외과학교실 영동세브란스병원) ;
  • 김진태 (연세대학교 치과대학 구강악안면외과학교실 영동세브란스병원) ;
  • 조명철 (연세대학교 치과대학 구강악안면외과학교실 영동세브란스병원) ;
  • 허종기 (연세대학교 치과대학 구강악안면외과학교실 영동세브란스병원) ;
  • 김형곤 (연세대학교 치과대학 구강악안면외과학교실 영동세브란스병원) ;
  • 박광호 (연세대학교 치과대학 구강악안면외과학교실 영동세브란스병원)
  • Published : 2007.03.31
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Abstract

Purpose: The aim of this study is the changes of upper respiratory airway space in patients with mandibular prognathism after 2-jaw orthognathic surgery in patients with skeletal classs III malocclusion. Method: We measured the lines between selected upper airway landmarks on lateral cephalometric x-ray films of skeletal class III 64 persons who had not been operated yet, were 6 months after operation. The test subjects were divided into 3 groups according to maxillary movement, as follows; maxillary advancement (MA) group, maxillary posterior impaction (MPI) group, maxillary posterior impaction and superior repositioning (MPI+MSR) group. Result: In this study, nasopharyngeal airway space in MPI+MSR group was significantly increased after operation (p<0.05). Oropharygeal and hypopharyngeal airway space in MA group and MPI group were significantly decreased after operation (p<0.05). From hyoid bone to anterior mandible point distance in MA group and MPI group were significantly decreased after operation (p<0.05). Conclusion: Oropharygeal and hypopharyngeal airway space were influenced more by mandibular set-back than maxillary movement. Maxillary movement surgery as well as mandibular setback surgery should be taken into consideration in order to minimize symptoms related to obstructive sleep apnea syndrome after operation.

Keywords

References

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