 |
 |
.gif)
_________________________________________________________________
Critical surface
tension
Material Product (dynes/cm) Ref.
_________________________________________________________________
Amalgam Argos Alloy 48.1 52
Co-Cr-Mo, as polished Vitallium* 22.3 137
Co-Cr-Mo, plasma cleaned Vitallium* >72 137
Glass Pyrex 170 71
Gold AB Adelmetall 57.4 52
Impression materials
Polyether Impregum 27.9 169
Silicone, addition Express Hydrophilic 53.8 169
Imprint Hydrophilic 52.4 169
President 21.2 169
Provil 20.2 169
Silicone, condensation Xantopren 14.4 169
Paraffin 22-26 71
Polymers
Polyetherurethane Pellethane 80A 19.3 170
Pellethane 55D 22.1 170
Pellethane 75D 35.7 170
Polyetherurethane urea Biomer 23.0 170
Polyethylene 31-33 71
Poly(methyl methacrylate) 39.0 71
Polystyrene 33-43 71
Poly(tetrafluoroethylene) Teflon 18 71
Tooth structure, enamel 38.5-40# 51
31.5$ 51
_________________________________________________________________
* Surgical
# 23 deg. C, 50% relative humidity
$ 37 deg. C, 100% relative humidity
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/
