This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. 2.Results indicated that there was no statistically significant difference in the elastic recovery of the three materials (P-value 0.908). PE presented the best penetration ability, while the novel PVS showed highest tensile strength. Statistical analysis of the means of recovery from deformation (in percentage) for the three tested impression materials are represented in Fig. The wider the sulcular width, the better the penetration ability of elastomeric dental impression materials. Vinylpolysiloxane transparent impression material of medium consistency. Penetration ability of elastomeric dental impression materials was depended on gingival sulcus width. Purpose: To compare the accuracy (ie, precision and trueness) of full-arch impressions fabricated using either a conventional polyvinyl siloxane (PVS) material or one of two intraoral optical scanners. PVS was significantly higher in tensile strength than VSE and PE, while VSE was significantly higher than PE. PE showed the best extension into all widths of simulated sulcus followed by VSE and PVS, respectively. The one-way ANOVA and Dunnett's T3 test were performed in the tensile strength test. The two-way analysis of variance (ANOVA) and Tukey's honest significant difference test were performed in the penetration ability test. On the issue of the tensile strength study, the models were constructed following type 1 of the ISO 37:2017 specifications and/or type C of ASTM.D412 specifications. All extension of elastomeric dental impression materials was scaled by Measuring Microscope (MM-11 Nikon, Tokyo, Japan). Each simulated gingival sulcus width was impressed 10 repeats per one elastomeric impression material. The 0.05, 0.1, and 0.2 mm of simulated gingival sulcus widths were used. The models were constructed for penetration ability test by simulated gingival sulcus width and moist environment. The aim of this study was to evaluate and compare penetration ability and tensile strength among vinylsiloxanether (VSE), polyether (PE), and polyvinylsiloxane (PVS) elastomeric dental impression materials.
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