Ketac Molar Versus Dyract Class II restorations in primary molars: twelve month clinical results

• Published in: ASDC journal of dentistry for children Vol. 67; no. 1; p. 37
• Main Authors: Marks, L A, van Amerongen, W E, Borgmeijer, P J, Groen, H J, Martens, L C
• Format: Journal Article
• Language: English
• Published: United States 01.01.2000
• Subjects: Analysis of Variance; Cariostatic Agents - therapeutic use; Child; Compomers; Dental Caries - therapy; Dental Marginal Adaptation; Dental Restoration, Permanent - methods; Glass Ionomer Cements - therapeutic use; Humans; Longitudinal Studies; Methacrylates - therapeutic use; Molar; Secondary Prevention; Silicates - therapeutic use; Statistics, Nonparametric; Tooth, Deciduous; Treatment Outcome
• ISSN: 1945-1954

The aim of the present clinical study was an in vivo evaluation of an improved conventional glass ionomer cement Ketac Molar (ESPE), compared to a polyacid modified composite resin, Dyract (Dentsply/De Trey), used in primary molars. Fifty-three Ketac Molar and fifty-two Dyract restorations were placed in box-only preparations in primary molars. The application time for the chemically cured Ketac Molar, was longer compared to the light-cured Dyract. In comparing the materials, no differences were found, comparing both materials regarding secondary caries, marginal adaptation, wear and fracture toughness. One case of recurrent caries adjacent to a Ketac Molar restoration and two cases in the Dyract group were reported. Two Ketac Molar restorations and one Dyract showed bulk fracture at the time of evaluation. At the twelve-month evaluation, no difference between the investigated materials was registered, which indicates that Ketac Molar can be used as a proximal restoration in the primary dentition. It should be emphasized, however, that one-year data should not be extrapolated to indicate the long-term success of restorations.