%0 Journal Article %A Neshati, A %A Kouchak Dezfouli, N %A Sadafi, M %A Omidi, Sh %T Compressive Strength of Three Types of Heat-Cure Acrylic Resins: Acropars, Acrosun, and Meliodent %J Journal of Research in Dental and Maxillofacial Sciences %V 6 %N 4 %U http://jrdms.dentaliau.ac.ir/article-1-310-en.html %R 10.52547/jrdms.6.4.14 %D 2021 %K Acrylic, Comprehensive Strength, PMMA, Heat Cure, %X Background: Compressive strength of acrylic resin base is an effective factor on durability of a prosthesis. The purpose of this in vitro study was to compare the compressive strength of three different types of heat-cure acrylic resins. Materials and Methods: In this in vitro experimental study, 60 acrylic samples were fabricated from Acropars, Acrosun, and Meliodent acrylic resins (n=20 from each). The specimens were placed in a universal testing machine and force was applied until their fracture. The load at fracture was recorded as the compressive strength. Data were analyzed using one-way ANOVA followed by the Tukey’s test. Results: The mean compressive strength was 80.6 ± 6.9, 85.6 ± 6.9, and 71.9 ± 5.3 MPa for Acropars, Acrosun, and Meliodent, respectively. The compressive strength of Acrosun was significantly higher than that of other groups (P=0.047). Conclusion: In general, the results showed that the highest and the lowest compressive strength values were related to Acrosun and Meliodent, respectively. These results indicated the optimal compressive strength of Iranian acrylic resins. %> http://jrdms.dentaliau.ac.ir/article-1-310-en.pdf %P 14-17 %& 14 %! Compressive Strength of Heat- Cured Acrylic %9 Original article %L A-10-814-1 %+ Private Practice, Tehran, Iran. %G eng %@ %[ 2021