title: Prevalence of vertical root fractures in extracted endodontically treated teeth.
abstract: OBJECTIVE
  The aim of this study was to evaluate the prevalence of vertical root fractures (VRF) in extracted endodontically treated teeth and to correlate the findings to previous studies and surveys.
  
  
  METHODS
  Root-canal-treated teeth were referred for extraction from a public dental clinic. The endodontic therapy had been completed by a variety of dentists. Each tooth was evaluated following extraction by the oral surgeon who performed the procedure: the exact aetiology for the clinical diagnosis that led to the extraction was recorded.
  
  
  RESULTS
  The major reasons for extraction were restorative (43.5%) and endodontic (21.1%), followed by vertical root fractures (10.9%).
  
  
  CONCLUSIONS
  The relatively high prevalence of vertical root fractures in this survey compared with previous clinical and radiographic surveys was probably related to the difficulties in making a clinical diagnosis of vertical fractures before extraction.
authors.affiliation: Department of Endodontology, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.
authors.forename: Z
authors.initials: Z
authors.lastname: Fuss
authors.forename: J
authors.initials: J
authors.lastname: Lustig
authors.forename: A
authors.initials: A
authors.lastname: Tamse
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D006801:Humans; D008875:Middle Aged; D015995:Prevalence; D014081:Tooth Extraction / Q000706:statistics & numerical data; D014082:Tooth Fractures / Q000175:diagnosis / Q000453:epidemiology*; D014092:Tooth Root / Q000293:injuries*; D019553:Tooth, Nonvital / Q000473:pathology*