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PubMed · 15544214

Marginal gap repair with flowable resin-based composites.

Valeria V Gordan·Chiayi Shen·Ivar A Mjor
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Abstract

This study was designed to test the hypothesis that the flowable/dentin interface has the weakest bond and highest frequency of failure when a resin-based composite is repaired using a flowable composite. Comparing three specific groups--dentin, flowable composite, and hybrid composite-under the Kruskal-Wallis test showed that the mean bond strength values at the flowable/dentin interface and within the dentin were significantly lower than those at the hybrid/flowable interface and within the flowable resin. Dentin near the pulp chamber yielded consistently lower bond strength values than dentin located at the dentino-enamel junction. Bonding at the flowable resin/dentin interface showed the weakest bond and highest frequency of failure.

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Analysis of VarianceBisphenol A-Glycidyl MethacrylateComposite ResinsDental BondingDental Marginal AdaptationDental Prosthesis RepairDental Restoration FailureDental Restoration, PermanentDental Stress AnalysisDentinDentin-Bonding AgentsHumansMaterials TestingPhase TransitionRetreatmentShear StrengthTensile StrengthJournal ArticleResearch Support, Non-U.S. Gov't

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Valeria V Gordan, Chiayi Shen, Ivar A Mjor. Marginal gap repair with flowable resin-based composites.. https://pubmed.ncbi.nlm.nih.gov/15544214/

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