Maxillofacial Plastic and Reconstructive Surgery

Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
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Evaluation of Maxillary Sinus Using Cone-beam Computed Tomography in Patients Who Underwent Le Fort I Osteotomy

르포트씨 1급 골절단술을 시행 받은 환자들에서 Cone-beam Computed Tomography를 이용한 수술 전, 후의 상악동의 평가

  • Lee, Jae-Yeol (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University) ;
  • Kim, Yong-Il (Department of Orthodontics, School of Dentistry, Pusan National University) ;
  • Baek, Young-Jae (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University) ;
  • Hwang, Dae-Seok (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University)
  • 이재열 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김용일 (부산대학교 치의학전문대학원 교정학교실) ;
  • 백영재 (부산대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 황대석 (부산대학교 치의학전문대학원 구강악안면외과학교실)
  • Received : 2011.12.19
  • Accepted : 2012.03.20
  • Published : 2012.03.30
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Abstract

Purpose: The aim of this sturdy was to assess the prevalence and change in pathologic findings in the maxillary sinus by using preoperative and postoperative cone-beam computed tomography (CBCT). Methods: The subjects included 83 patients with maxillary sinus abnormalities who underwent orthognathic surgery between January 2010 to December 2010. The CBCT analyses were classified according to the thickness of maxillary sinus membrane; Normal (membrane thickness<2 mm), mucosal thickening (membrane thickness ${\geq}2mm$ and <6 mm), partial opacification (membrane thickness>6 mm but not complete), total opacification, and polypoidal mucosal thickening. The diameters of the maxillary sinus ostium on the coronal cross-sectional view were also calculated. Results: Out of 166 maxillary sinuses in 83 patients, 42 (25.3%) maxillary sinuses before surgery and 37 (22.3%) maxillary sinuses after surgery showed abnormalities. A decrease in the diameters of maxillary ostium was observed after surgery (P<0.05). However, there was no significant difference in mucosal thickness both, preoperatively and postoperatively. Conclusion: The orthognathic surgery didn't deteriorate the maxillary sinus abnormaility. Despite the low prevalence of sinus complications in orthognathic surgery, all the patients should be informed of the possibility of sinusitis that could require the surgical intervention before surgery.

Keywords

References

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