title: Different representations of vertical root fractures detected by cone-beam volumetric tomography: a case series report.
abstract: BACKGROUND
  Vertical root fractures (VRFs) pose a clinical dilemma and a challenge to clinicians. Definitive diagnosis is often complicated by the lack of consistent signs and symptoms and the low sensitivity of conventional radiographs in the detection of VRFs. New radiographic imaging systems have recently become available for use in dentistry. Among these new imaging technologies is cone-beam volumetric tomography (CBVT). CBVT technology allows the precise visualization and evaluation of teeth with VRFs. The use of CBVT has great potential as a diagnostic tool to assist in the detection of VRFs.
  
  
  METHODS
  Seven cases are presented to demonstrate the use of CBVT in detection of VRFs in endodontically treated teeth.
  
  
  RESULTS
  Five specific findings on CBVT exam were consistent with confirmed VRFs.
  
  
  CONCLUSIONS
  As demonstrated in this case series, CBVT can provide valuable additional diagnostic information in the detection of VRFs and may help prevent unnecessary treatment.
authors.affiliation: Department of Endodontics, University of Illinois at Chicago, Chicago, Illinois 60612, USA.
authors.forename: Mohamed I
authors.initials: MI
authors.lastname: Fayad
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Ashkenaz
authors.forename: Bradford R
authors.initials: BR
authors.lastname: Johnson
mesh_terms: D000328:Adult; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000209:etiology; D054893:Cone-Beam Computed Tomography; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010485:Periapical Periodontitis / Q000000981:diagnostic imaging / Q000209:etiology; D012390:Root Canal Therapy / Q000009:adverse effects; D014081:Tooth Extraction; D014082:Tooth Fractures / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology*; D014092:Tooth Root / Q000293:injuries*; D019553:Tooth, Nonvital / Q000150:complications / Q000000981:diagnostic imaging*; D017211:Treatment Failure; D019564:Unnecessary Procedures