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_________________________________________________________________ Material Product Poisson's ratio Ref. _________________________________________________________________ Amalgam 0.35* 63 0.334* 113 Cements Zinc phosphate Tenacin 0.35* 54 Zinc silicophosphate Dorcate 0.30* 54 Fluorapatite (mineral) 0.28* 55 Gold alloys Au-Ag-Pd 0.33 192 Au-Pd 0.33 193 Hydroxyapatite (synthetic) 0.28* 55 Impression materials Polyether Impregum 0.13$ 194 Silicone, addition Baysilex Monophase 0.41$ 194 Provil medium 0.19$ 194 heavy 0.44$ 194 Nickel-chromium alloys Ceramalloy 0.27 136 Microbond NP2 0.24 136 Pentillium 0.32 136 Polymers Acrylic 0.37-0.45# 102 Polycarbonate 0.41-0.44# 102 Polyethylene 0.54-0.61# 102 Porcelain Ceramco 0.19 135 Vita 0.19 135 Restorative materials Acrylic Sevriton 0.35* 116 Composite resin Adaptic 0.24* 116 Silicate Syntrex 0.30* 54 Titanium 0.33 192 Tooth and supporting structures Bone Cancellous 0.30 195 Cortical 0.30 195 Cementum 0.31 195 Dentin 0.31 195 Enamel 0.33 195 Periodontal Ligament 0.45 195 _________________________________________________________________ * Measured by ultrasonic method. # Measured in tension with transverse strain gauge extensometers. $ Measured by dynamic method.
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/Poisratio.html
