title: Some problems encountered in endodontic radiography.
abstract: This retrospective survey highlights some of the problems faced by undergraduate students using the bisecting angle technique in endodontic radiography. The radiographs of maxillary incisors and premolars were observed to suffer from a greater amount of distortion than radiographs of the corresponding mandibular teeth. Further, the presence of rubber dam equipment affected the accuracy of the radiographs, and this was more apparent on the radiographs of the maxillary incisors and premolars compared to the mandibular incisors and premolars. Other problems identified included superimposition, indistinct and missed root apices. Methods to overcome these problems are suggested.
mesh_terms: D001641:Bicuspid / Q000000981:diagnostic imaging*; D003814:Dentistry, Operative / Q000295:instrumentation; D003951:Diagnostic Errors; D006801:Humans; D007180:Incisor / Q000000981:diagnostic imaging*; D008722:Methods; D011859:Radiography; D012189:Retrospective Studies; D012390:Root Canal Therapy; D014092:Tooth Root / Q000000981:diagnostic imaging; D014962:X-Ray Film