title: Cemental tear: a case report.
abstract: OBJECTIVE
  To report a case of a cemental tear.
  
  
  CONCLUSIONS
  A case is reported of a patient with a history of trauma, root canal treatment and retreatment procedures to eliminate recurring sinus tracts. An exploratory surgery, extraction, and biopsy resulted in a diagnosis of cemental tear.
  
  
  CONCLUSIONS
  * The detachment of a fragment of cementum is described as a cemental tear. * Cemental tears have been reported in the periodontal literature associated with localized, rapid periodontal breakdown. Common causative factors are aging and traumatic occlusion but the exact aetiology is unknown. * Trauma may be considered as a potential aetiologic factor for cemental tears in addition to occlusal traumatism and aging.
authors.affiliation: Endodontics Department, Naval Postgraduate Dental School, National Naval Medical Center, Bethesda, MD, USA.
authors.forename: M L
authors.initials: ML
authors.lastname: Stewart
authors.forename: S B
authors.initials: SB
authors.lastname: McClanahan
mesh_terms: D000328:Adult; D016301:Alveolar Bone Loss / Q000209:etiology*; D003739:Dental Cementum / Q000293:injuries* / Q000601:surgery; D003794:Dental Restoration, Temporary; D006801:Humans; D008297:Male; D008439:Maxillary Diseases / Q000209:etiology; D011859:Radiography; D019233:Retreatment; D012390:Root Canal Therapy; D014081:Tooth Extraction / Q000379:methods; D018677:Tooth Injuries / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery