title: Durability of a polyacid-modified composite resin (compomer) in primary molars. A multicenter study.
abstract: A polyacid-modified composite resin (compomer) restorative material was evaluated in primary molars in a multicenter study. One hundred and fifty-nine class-II restorations were placed by 6 dentists in 79 children. The restorations were evaluated during a 2-year period, using slightly modified USPHS criteria. After 1 year 151 restorations were evaluated and, after 2 years, 104. The cumulative failure rate after 1 year was 8% and after 2 years, 22%. The main reasons for failure were loss of retention (12%) and secondary caries (5%). The compomer material showed a high failure rate, comparable to that of other adhesive restorative materials currently used in primary molars. A large operator variation in failure rate indicates the technique sensitivity of the material.
authors.affiliation: Department of Pedodontics, Faculty of Odontology, Umeå University, Sweden.
authors.forename: I E
authors.initials: IE
authors.lastname: Andersson-Wenckert
authors.forename: U H
authors.initials: UH
authors.lastname: Folkesson
authors.forename: J W
authors.initials: JW
authors.lastname: van Dijken
mesh_terms: D000269:Adhesives / Q000737:chemistry; D002648:Child; D002675:Child, Preschool; D020770:Compomers; D003188:Composite Resins / Q000737:chemistry*; D003723:Dental Amalgam / Q000737:chemistry*; D001840:Dental Bonding; D003731:Dental Caries / Q000473:pathology; D019232:Dental Restoration Failure; D019554:Dental Restoration Wear; D003793:Dental Restoration, Permanent / Q000145:classification; D005069:Evaluation Studies as Topic; D005500:Follow-Up Studies; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008689:Methacrylates / Q000737:chemistry*; D008963:Molar; D015588:Observer Variation; D012008:Recurrence; D017640:Silicates / Q000737:chemistry*; D014094:Tooth, Deciduous
chemical_list: D000269:Adhesives; D020770:Compomers; D003188:Composite Resins; C088486:Dyract; D005899:Glass Ionomer Cements; D008689:Methacrylates; D017640:Silicates; D003723:Dental Amalgam