Abstract
AbstractThe toughening potential of a particle‐size reduction is investigated on experimental glass ionomer cements (GICs). A reduction of the particle size results in a reduced fracture toughness. The use of bimodal particle‐size distributions is proposed for the development of tough and workable cements, where small particles provide the reactive surface area and large particles are responsible for crack deflection. Characterization of a GIC‐restored tooth with reference to a composite restoration by nanoindentation demonstrates the clinical relevance of the study. The elastic properties of GICs are well adapted for application in contact with dentine.
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