title: Survival analysis of amalgam restorations in long-term recall patients.
abstract: The longevity of amalgam restorations in premolars and first and second molars in long-term recall patients has been calculated by means of survival analysis. The present retrospective longitudinal study includes information from 32 patients and their records over a time period of 17 years. The data were recorded by six dentists. The estimated time of 90% survival was 7 years. After 17 years the survival estimate decreased to 78%, indicating a favorable longevity of amalgam restorations in patients taken care of in an established recall system.
authors.affiliation: Department of Operative Dentistry, Dental Faculty, University of Oslo, Norway.
authors.forename: E
authors.initials: E
authors.lastname: Bjertness
authors.forename: T
authors.initials: T
authors.lastname: Sønju
mesh_terms: D000206:Actuarial Analysis; D000328:Adult; D000368:Aged; D001641:Bicuspid; D003723:Dental Amalgam; D003793:Dental Restoration, Permanent / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D008963:Molar; D012189:Retrospective Studies
chemical_list: D003723:Dental Amalgam