Physical properties of a new silorane-based restorative system
Abstract
Objectives
To distinguish the physical properties of a new silorane-based restorative material in comparison to five methacrylate-based restorative materials – a compomer, giomer, nanocomposite, hybrid and micro-hybrid.
Methods
The following properties were examined per restorative material: compressive strength, diametral tensile strength, flexural strength/modulus, fracture toughness, microhardness, and polymerization shrinkage. The mean and standard deviation were determined per group. A one-way ANOVA/Tukey was performed per property (α
=
0.05).
Results
Significant differences were found between groups per property (p
<
0.001).
Conclusions
Compared to the methacrylate-based restorative materials, the new silorane-based material had the lowest polymerization shrinkage, but an overall mixed mechanical performance. The silorane-based material had relatively higher flexural strength/modulus, fracture toughness, but relatively lower compressive strength and microhardness than the methacrylate-based restorative materials.
Keywords: Physical properties, Composites, Silorane, Compomers, Giomers, Hybrids
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PII: S0109-5641(09)00508-9
doi:10.1016/j.dental.2009.12.004
Published by Elsevier Inc.
