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Coefficient of friction
Material couples Dry Wet Ref.
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Amalgam on:
Amalgam 0.19-0.35 95
Bovine enamel 0.12-0.28 95
Composite resin 0.10-0.18 95
Gold alloy 0.10-0.35 95
Porcelain 0.06-0.12 0.07-0.15 95
Bone on:
Metal (bead-coated) 0.50 203
Metal (fiber mesh-coated) 0.60 203
Metal (smooth) 0.42 203
Bovine enamel on:
Acrylic resin 0.19-0.65 95
Amalgam 0.18-0.22 95
Bovine dentin 0.35-0.40 0.45-0.55 95
Bovine enamel 0.22-0.60 0.50-0.60 95
Chromium-nickel alloy 0.10-0.12 95
Gold 0.12-0.20 95
Porcelain 0.10-0.12 0.50-0.90 95
Composite resin on:
Amalgam 0.13-0.25 0.22-0.34 95
Bovine enamel 0.30-0.75 95
Gold alloy on:
Acrylic 0.6 -0.8 95
Amalgam 0.15-0.25 95
Gold alloy 0.2 -0.6 95
Porcelain 0.22-0.25 0.16-0.17 95
Hydrogel-coated latex on:
Hydrogel 0.054 204
Latex on:
Glass 0.470 204
Hydrogel 0.095 204
Metal (bead-coated) on:
Bone 0.54 203
Metal (fiber mesh-coated) on:
Bone 0.58 203
Metal (smooth) on:
Bone 0.43 203
Prosthetic tooth materials
Acrylic on acrylic 0.21 0.37 94
Acrylic on porcelain 0.23 0.30 94
Porcelain on acrylic 0.34 0.32 94
Porcelain on porcelain 0.14 0.51 94
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Revised April, 1996
Biomaterials Properties Database, University of Michigan
Contact: Dr William J. O'Brien, Director (FAX: 313-647-5293).
Copyright © Quintessence Publishing, 1996.
http://www.lib.umich.edu/dentlib/Dental_tables/Coeffric.html
