title: [Comparison of dentomaxillary pantomography and periapical radiographs with horizontal tube shift in localizing the impacted teeth].
abstract: OBJECTIVE
  To compare the clinic value between dentomaxillary pantomography and periapical radiographs in localization of the impacted teeth.
  
  
  METHODS
  43 impacted teeth were localized with both dentomaxillary pantomography technique and periapical radiographs with horizontal tube shift which is clinically widely used. And a comparison between the two methods was carried out using Chi square test.
  
  
  RESULTS
  Both dentomaxillary pantomography and periapical radiographs with horizontal tube shift can relatively precisely demonstrate the position of the impacted teeth. The percentage of the cases which the image and the result of surgery was consistent in the two methods was 93.02% and 95.35% (P>0.05) respectively. There was no statistical difference between the two groups.
  
  
  CONCLUSIONS
  Dentomaxillary pantomography can precisely localize the impacted teeth.
authors.affiliation: Department of Preventive & Pediatric Dentistry, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China. wangsun9h@citiz.net
authors.forename: Sun
authors.initials: S
authors.lastname: Wang
authors.forename: Lin-feng
authors.initials: LF
authors.lastname: Fan
mesh_terms: D006801:Humans; D011861:Radiography, Dental / Q000379:methods*; D014095:Tooth, Impacted / Q000000981:diagnostic imaging*