Abstract
Aims: To evaluate the effect of incorporation of different types and concentrations of additives on water sorption denture base acrylic resin. Materials and Methods: Heat polymerized acrylic resin samples were prepared and divided into two groups; control group (without additives) and experimental group (with additives). The additives were three types of polymers (Styrene Butadiene Rubber (SBR), Poly Ethylene Glycol (PE) and Poly Urethane (PU)) being added with three concentrations 1%, 3% and 5%. SPSS Version 19 was used to analyze and to assess the results of the present study by mean of Descriptive statistics, analysis of Variance (ANOVA) and Duncan multiple range tests at p ≤0.05. Results: The results reveal that there is statistically significant reduction in the amount of water sorption of experimental group as compared to that of control group at p≤ 0.05. The reduction in the amount of water sorption of experimental group is directly proportional to the concentration of incorporate additives. Conclusions: Water sorption of experimental group is less than that of control group. The additives produce statistically significant reduction in the amount of absorbed water of denture base resin and this reduction was directly proportional to the concentration additives material being used.
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