Journal of Periodontal and Implant Science

Korean Academy of Periodontology (대한치주과학회)
권호 표지

Maxillary sinus septum;panoramic radiographic and dental computed tomographic analyses in the planning of implant surgery

상악동 중격;임플란트 수술 계획시 파노라마와 치과용 전산화 단충촬영 분석

  • So, Hyun-Ja (Department of Periodontology, College of Dentistry, Chonbuk National University) ;
  • Jeong, Dong-Keun (Department of Periodontology, College of Dentistry, Chonbuk National University) ;
  • Kwon, Jin-Hee (Department of Periodontology, College of Dentistry, Chonbuk National University) ;
  • Ryu, So-Hyun (Department of Periodontology, College of Dentistry, Chonbuk National University) ;
  • Kim, Hyung-Seop (Department of Periodontology and Research Institute of Oral Bio-Science, College of Dentistry, Chonbuk National University)
  • 소현자 (전북대학교 치과대학 치주과학교실) ;
  • 정동근 (전북대학교 치과대학 치주과학교실) ;
  • 권진희 (전북대학교 치과대학 치주과학교실) ;
  • 유소현 (전북대학교 치과대학 치주과학교실) ;
  • 김형섭 (전북대학교 치과대학 치주과학교실, 전북대학교 구강생체과학 연구소)
  • Published : 2006.03.30
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Abstract

Surgical intervention in the posterior maxillary region requires detailed knowledge of maxillary sinus anatomy and the possible anatomical variations. This study evaluated the incidence, location of maxillary sinus septa by using radiographic (panoramic radiography and computed tomography) findings and comparison of panoramic radography with CT in antral anatomical variation. This study was based on data from 70 sinuses in partial dentate maxilla. The sample consisted of 61 patients(25 women and 36 men, with ages ranging between 19 and 77 years and a mean age of $49.4{\pm}11.3$ years) who were being treatment-planned to receive implant-supported restorations. First, the panoramic images were examined for the presence of antral septa by radiologist and examiner who don't know about CT findings. And incidence of antral septa was evaluated using an axial plane of CT image. The incidence of septa was compared between panoramic radiography and CT. The accuracy of the incidence was compared between radiologists and dentists. A total of 20 septa were found in 70 sinuses on CT image and the prevalence of one or more septa per sinus was found to be 28.6%. The assumed incidence of septa on panoramic radiography was $27.6%{\pm}2.2%$ in radiologist and $31.9%{\pm}5.8%$ in dentists. Erroneous diagnosis rate was 11.42% in radiologist and 15.96% in dentists. 40% of antral septa were located in the anterior(premolar) region, 30% of septa were located in the middle(first molar) and posterior(second molar) region separately. Prior to implant placement, it seems appropriate to consider panoramic radiography as a standard radiographic examination and periapical radiographs may be used to complete the findings in regions not sharply depicted in the panoramic radiograph. And cross-sectional imaging should be used in sites with severe bone loss and close proximity of the maxillary sinus.

Keywords

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