title: Cemental tear related to rapid periodontal breakdown: a case report.
abstract: Cemental tears have been described both in exposed and unexposed cementum. The phenomenon is believed to be elicited by overloading or acute trauma from occlusion. In this case report a patient, with a history of periodontal health, presented with an acute periodontal lesion on the distal aspect of a bridge abutment tooth. Periapical radiographs demonstrated an extensive vertical intrabony defect adjacent to the vital abutment tooth containing a radiopaque "foreign body." Histological examination of the surgically removed "foreign body" revealed a piece of dental cementum with some attached soft tissue. The lesion responded well to a surgical approach. Healing was uneventful and periodontal health was restored. This case illustrates that cemental tear should be considered as a differential diagnostic entity in isolated sites with rapid periodontal breakdown.
authors.affiliation: Graduate Periodontics, School of Dentistry, Loma Linda University, CA.
authors.forename: J M
authors.initials: JM
authors.lastname: Haney
authors.forename: K N
authors.initials: KN
authors.lastname: Leknes
authors.forename: T
authors.initials: T
authors.lastname: Lie
authors.forename: K A
authors.initials: KA
authors.lastname: Selvig
authors.forename: U M
authors.initials: UM
authors.lastname: Wikesjö
mesh_terms: D000368:Aged; D003238:Connective Tissue; D003739:Dental Cementum / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010510:Periodontal Diseases / Q000209:etiology*; D012391:Root Resorption / Q000473:pathology; D014082:Tooth Fractures / Q000150:complications* / Q000473:pathology