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Objectives: The purpose of this study was to measure and analyze the mechanical properties of several composite materials designed for dental restoration.Methods: The materials were composed of a visible light-curing monomer mixture (either Bis-GMA+TEGDMA or Bis-GMA+HEMA) as a matrix and hydroxyapatite (either microscopic or nanoscopic particles) as a reinforcing filler. The surface of the hydroxyapatite...
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