denture base
impact strength
polymerized polymethyl methacrylate particles
polymethyl methacrylate resin
surface hardness
surface roughness
zirconia
zirconium oxide
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Introduction: This study was designed to examine the effects of addition of the combination of polymerized polymethyl methacrylate
(PMMA) and zirconia (ZrO2) particles to heat cure PMMA resin on impact strength, surface hardness, and roughness. Methods: The 70%
(w/w) of polymerized PMMA powder (particle size: 0.70mm) was mixed with 30% (w/w) of zirconia powder (ZrO2) (1mm) to produce
PMMA-ZrO2 filler. Ninety acrylic specimens created were divided into three groups containing 0% wt (Control group), 2% wt, and 4% wt,
PMMA-ZrO2 filler. Ten specimens were used for impact strength, surface hardness and roughness test, blindly. Data were analyzed via oneway ANOVA and the Tukey post hoc test using R 3.6.3. Results: There was statistically signific
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