title: The importance of preoperative radiographs and the determination of root canal configuration.
mesh_terms: D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging*; D006801:Humans; D009811:Odontometry / Q000379:methods*; D011859:Radiography; D012390:Root Canal Therapy / Q000379:methods; D014092:Tooth Root / Q000000981:diagnostic imaging*