Journal of Conservative Dentistry
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Year : 2004  |  Volume : 7  |  Issue : 3  |  Page : 128-132

Suitability Of The Shear Punch Test For Evaluating Dental Restorative Materials

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S Sylesh

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Source of Support: None, Conflict of Interest: None

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This study evaluated the suitability of the shear punch test to determine the mechanical properties of a wide range of restorative materials. The method was evaluated by determining the shear strength values of five different restorative materials; Silver amalgam, a microfilled resin composite (Durafill VS). packable hybrid resin composite (Filtek P60), resin modified glass ionomer cement (Fuji II LC) and a high-viscosity ionomer cement (Fuji IX GP) and comparing the obtained values of strength with the known clinical performance of these materials. The shear strength values of different types of materials showed statistically significant differences (p<0.0001). The punch strength values increased in the order resin modified glass ionomer <high viscosity glass ionomer < microfilled composite resin < packable hybrid composite resin < amalgam. The rank order of strength values obtained were consistent with the known clinical performance of these materials.

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