Journal of Dental Research · 1982 · 248 citations · 1 references
DentistryDental Materials ScienceMaterials ScienceDental MaterialsPolymer ChemistryPolymer MaterialsComposite MaterialsDegradation Of Dental MaterialsDental CompositesDental PolymersWear ResistanceWear-resistant MaterialsComposite Restorative MaterialsComposite Wear BehaviorMatrix Cross-linkingPolymer Wear ResistanceRestorative Dental MaterialsWear Of Dental MaterialsWear Rate MeasurementWear-resistant Polymer Composites
The wear resistance of a commercial dental restorative composite exposed to different chemicals was measured with a pin-disc apparatus. The initial wear rate increased dramatically once the composite had been immersed in chemicals known to soften the cross-linked matrix material, which is a copolymer derived from BIS-GMA and diluent monomer. The increase of wear rate in a chemically softened composite was found to persist over a depth beyond 160 μm for specimens immersed over two wk prior to wear testing.
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