Randomized clinical trial of five adhesive systems in occlusal restorations: One-year results
DENTAL MATERIALS JOURNAL(2020)
Abstract
This randomized clinical trial evaluated the efficacy of five different adhesive systems in the restoration of occlusal cavities after one year of function. Two etch-and-rinse (Optibond (TM) FL, Prime & Bond (R) NT (TM)) and three self-etch (Clearfil (TM) SE Bond, Xeno (R) III, Xeno (R) V+) adhesive systems were evaluated on 159 occlusal restorations, incrementally filled with a microhybrid composite resin. Restorations were assessed using the FDI criteria at baseline, 6 months and 1 year. Statistical analysis was performed with Friedman-test and Kruskal-Wallis test (p<0.05). At 1 year, 153 restorations were evaluated. A statistically significant decrease in the number of restorations with marginal adaptation classified as excellent occurred for the self-etch adhesives (p<0.01). Etch-and-rinse adhesives presented better performance than any of the self-etch systems (p<0.01) in terms of marginal adaptation. All cases were considered no less than satisfactory. Marginal adaptation was the most influent parameter on the distinctive performance of the adhesives where etch-and-rinse systems performed significantly better than self-etch systems.
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Key words
Adhesives,Composite resin,Posterior teeth,Randomized clinical trial
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