Effect of Bleaching Method and Curing Time on the Surface Microhardness of Microhybrid Composite Resin
Narmin Mohammadi, Fereshteh Naser Alavi, Sahand Rikhtehgaran, Mohammad Esmaeel Ebrahimi Chaharom, Ashkan Salari, Soodabeh Kimyai, Mahmoud Bahari
Abstract
Application of both bleaching methods decreased the surface hardness of microhybrid composite resin. An increase in the curing time was associated with a decrease in adverse effects of bleaching agents on microhardness.
Topics & Concepts
Indentation hardnessMaterials scienceDistilled waterComposite numberTukey's range testCuring (chemistry)Hydrogen peroxideResin compositeHardnessComposite materialStatistical analysisMathematicsChemistryMicrostructureChromatographyStatisticsOrganic chemistryDental Erosion and TreatmentDental materials and restorationsLaser Applications in Dentistry and Medicine