Methods: All specimens of these two materials were prepared in aluminum molds pre-heated to 37°C and cured until the end of the specified setting time. Tensile tests (26 samples), microhardness tests and elastic recovery (ISO 4823) were determined. A goniometer device was used to analyze the contact angle, considering water as wetting fluid. Viscosity was determined with a rheometer device (1000 Pa, each 10 sec). All data were analyzed by Mann-Whitney and Wilcoxon tests at the 0.05 level of significance.
Results: According to protocols and statistical results, for a same setting time (p<0,028) and detail precision rate, new polyvinylsiloxane impression material seems to have better hydrophilicity and elasticity (p<0,008) properties.
Conclusion: For clinical application, this new polyvinylsiloxane impression material seems to have all the qualities required for an impression material. In more, its new conditioning optimizes hygiene and ergonomics.