Abstract:
Objective: Since there is no material in the market met all the ideal requirements of an impression material, thus in
an attempt to fnd one, hybridization between the two most commonly used impression materials were done. The
aim of the hybridization was to obtain a new material combining the good merits of both and eliminate their short‑
comings. Thus, this study aimed to assess the impact of hybridization between polyether with addition silicone on
tear strength and elastic recovery of the new material and compare such efect with regard to parent materials.
Results: A polyether (PE), polyvinyl siloxanse (PVS) and vinyl polyether silicone (VPES) hybrid elastomers were used in
the present study. Tear strength was measured one hour after setting time of each material according to the manufac‑
turer and the three materials showed statistically comparable tear strength in N/mm. Elastic recovery was evaluated
one minute after the setting time recommended by the manufacturer. The three materials were statistically insignif‑
cant from each other, and all met the ISO4823 requirement of having greater than 96.5% recovery.
