Effectiveness of Reciprocal-Action Instrumentation for Polishing Composite Resin: An In Vitro Study |
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| Authors: | Keith L Small DM D Marvin H Goldfogel DDS † Sheldon M Newman DDS MS ‡ |
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| Institution: | Private Practice, Denver, Colorado;Professor and Chairman, Division of Fixed Prosthodontlcs, Chairman, Department of Restorative Dentistry, University of Colorado School of Dentistry, Denver, Colorado;Associate Professor, Department of Restorative Dentistry;University of Colorado School of Dentistry, Denver, Colorado |
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| Abstract: | This in vitro study investigates the use of reciprocal-action instrumentation for polishing composite resin restorative materials. Electron photomicrographs were made of surfaces of a microfilled and a hybrid composite resin restorative material polished by various reciprocal-action polishing procedures, including several types of polishing pastes used with nonabrasive plastic tips. The best polish on the microfilled composite resin restorative material tested was produced by ending with 3-μ diamond polishing paste. The best polish on the hybrid composite resin restorative material tested was produced by ending with 0.5-μ diamond polishing paste. The surfaces produced were comparable to those produced by polishing discs. |
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