title: Mandibular first molar having an unusual mesial root canal morphology with contradictory cone-beam computed tomography findings: a case report.
abstract: BACKGROUND
  The objective of this article is to highlight the importance of having a thorough knowledge about the root canal anatomy and the possibility of misleading findings in the cone-beam computed tomography (CBCT) images.
  
  
  METHODS
  This case report presents the endodontic management of a right mandibular first molar with 2 roots and 2 canals. A CBCT imaging was performed to ascertain this rare root canal anatomy.
  
  
  RESULTS
  The clinical and radiographic diagnosis of the existence of a single root canal within the mesial root of mandibular first molar did not correlate with the CBCT findings.
  
  
  CONCLUSIONS
  The confirmative diagnosis should be based on cognitive deduction of the clinical picture and intelligent interpretation of radiologic information.
authors.affiliation: Rajan Dental Institute, Mylapore, Chennai, Tamil Nadu, India. drkrithikadatta@hotmail.com
authors.forename: Jogikalmat
authors.initials: J
authors.lastname: Krithikadatta
authors.forename: Jojo
authors.initials: J
authors.lastname: Kottoor
authors.forename: Chellaswamy Savarimalai
authors.initials: CS
authors.lastname: Karumaran
authors.forename: Gunaseelan
authors.initials: G
authors.lastname: Rajan
mesh_terms: D016477:Artifacts; D054893:Cone-Beam Computed Tomography; D003786:Dental Pulp Cavity / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008334:Mandible; D008875:Middle Aged; D008963:Molar / Q000033:anatomy & histology*; D012390:Root Canal Therapy; D014092:Tooth Root / Q000033:anatomy & histology* / Q000000981:diagnostic imaging