Class II amalgam restorations, glass-ionomer tunnel restorations, and caries development on adjacent tooth surfaces: a 3-year clinical study.
Eighteen caries-active adolescents, each having both a class II conventional amalgam (Dispersalloy) and a glass-ionomer (Ketac Silver) tunnel restoration of the same age placed on a contralateral tooth, were part of a 3-year clinical study. At the 1- and 2-year examinations all test restorations were assessed as acceptable in all patients. At the 3-year assessment three amalgam restorations failed due to recurrent caries, and one glass-ionomer restoration failed due to marginal ridge fracture. During the entire study period, the requirement of restorative therapy because of primary proximal caries was significantly reduced (p < 0.05) on tooth surfaces adjacent to the glass-ionomer restorations as compared with that on tooth surfaces adjacent to the amalgam restorations.
Svanberg
M
M
Department of Public Dental Health, Kronoberg County Council, Växjö, Sweden.
D000293:Adolescent; D016722:Cermet Cements / Q000737:chemistry; D003722:Dental Alloys / Q000737:chemistry; D003723:Dental Amalgam / Q000737:chemistry; D003731:Dental Caries / Q000209:etiology* / Q000628:therapy*; D003775:Dental Polishing; D003793:Dental Restoration, Permanent / Q000145:classification / Q000379:methods; D004868:Equipment Failure; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D012008:Recurrence; D013499:Surface Properties
D016722:Cermet Cements; D003722:Dental Alloys; D005899:Glass Ionomer Cements; C033470:Dispersalloy; D003723:Dental Amalgam