Comparative Evaluation of Wettability at Various Stages of Working Time for Light Body and Medium Body Consistencies of Three Elastomeric Impression Materials

Abstract

Aim: The main purpose of this study was to compare the wettability of light and medium body consistencies of three different elastomeric impression materials during their working time. Materials and Methods: Vinylpolysiloxane, polyether, and vinylsiloxanether light body and medium body impression materials were used to fabricate the test samples. The contact angles of the impression materials were determined at 30 th s from the start of mixing until their entire range of working time using a goniometer. The mean contact angles at the early stage of working time and at the end of working time for two consistencies of each impression material were subjected for statistical analysis. Results: The result showed contact angle of all the impression materials toward the end of working time was less than the early stage with the statistical significance ( P < 0.05). The contact angle of the light body impression material was less than the medium body impression materials with statistical significance ( P < 0.05) except for vinylsiloxanether impression material. Conclusion: We have concluded from this study that vinylsiloxanether impression materials exhibited the least contact angle followed by polyether and the highest was recorded for vinylpolysiloxane impression material.