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The purpose of this project was to determine the amalgam surface roughness following finishing and polishing procedures. Nine high-copper amalgams were tested. They were hand-condensed in a 3 x 3 x 30 mm mold. Each sample was divided into four sections, and each section was finished by one of four methods: carving only; carving and then burnishing 15 minutes after carving; carving and then polishing at the prescribed times; or carving, burnishing 15 minutes after carving, and then polishing at the prescribed times. Each bar of amalgam had these surface treatments done at either 1, 3, 6, or 24 hours. The results indicated surface roughness may be more dependent on particle size, shape, and distribution of the individual high-copper amalgams than the polishing time or the surface treatment performed.
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T R Toepke
February 1994,
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J L Drummond, and
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January 2004,
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J L Drummond, and
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J L Drummond, and
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J L Drummond, and
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J L Drummond, and
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J L Drummond, and
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Operative dentistry,
J L Drummond, and
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Journal of dental sciences,
J L Drummond, and
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PloS one,
J L Drummond, and
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T R Toepke
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Operative dentistry,
