Journal of the American Dental Association, Vol 128, Issue 2, 183-188
Copyright © 1997 by American Dental Association
Comparing the accuracy of reversible hydrocolloid and elastomeric impression materials
DR Federick
and
A Caputo
Department of Fixed Prosthodontics, University of Texas Dental Branch, Houston, USA.
This in vitro investigation evaluated the accuracy of reversible hydrocolloid, vinyl polysiloxane and polyether elastic impression materials used in conjunction with two die stones. The authors made impressions in an experimental environment that approximated clinical conditions in regard to temperature and moisture. Analysis of variance and t-tests were used to compare corresponding measurements on experimental casts made from the various impression materials.