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Objective: The aim of this study was to evaluate of the dimensional accuracy of Polyvinylsiloxane (PVS) impression materials (Spirias, Imicryl, Konya, Turkey and Variotime, Heraeus, Hanau, Germany) by using stone models after different pouring time (1 hour and 24 hours). Methods: A standard maxillary dentulous acrylic model was selected as master model. Two linear measurements were selected on each sample for the evaluation of the models (x: 13-23 distance, y: 13-26 distance). A total of 40 samples were divided into 4 groups according to the impression brands and pouring time (n=10). All of measurements were made with CEREC SW 4.2.3 software (Sirona Dental System, GmbH, Bensheim, Germany) using “distance” tools of the programme. Statistical analysis was performed by using the IBM SPSS Statistics, Version 25 (IBM SPSS Statistics for Windows, IBM Corporation, Armonk, NY). A value of p0.05). When the paired relations with the master model are evaluated, t test and p values show that there is statistically significant difference (p |
