title: Evaluating the longevity of restorative materials that seal the root canals of overdenture abutments.
abstract: Researchers have not established which restorative materials are most appropriate to seal the root canals of overdenture abutments. The author evaluated the longevity of a spherical amalgam, a composite resin and a glass ionomer in 123 patients. Results of this study showed a significant difference between the glass ionomer and the other two materials with regard to the time from placement to replacement of the restorations.
authors.affiliation: Department of Prosthodontics, University of Iowa, Iowa City 52242, USA.
authors.forename: R L
authors.initials: RL
authors.lastname: Ettinger
mesh_terms: D000368:Aged; D003188:Composite Resins; D000044:Dental Abutments; D003723:Dental Amalgam; D003793:Dental Restoration, Permanent / Q000379:methods*; D003828:Denture, Overlay; D016002:Discriminant Analysis; D005260:Female; D005899:Glass Ionomer Cements; D006801:Humans; D016013:Likelihood Functions; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D016016:Proportional Hazards Models; D012044:Regression Analysis; D012387:Root Canal Filling Materials; D016019:Survival Analysis
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements; D012387:Root Canal Filling Materials; D003723:Dental Amalgam