Evaluating the effect of new denture cleaners on the surface roughness of acrylic resin denture base material : an in vitro study

الملخص EN

Three newly prepared denture cleaner solutions from materials available in our country [namely ; oxalic, citric and tartaric acids dissolved in isopropyl alcohol (5 % w / v)] were studied for their effect on 110 specimens of heat cure acrylic resin prepared according to ADA Specification for 7 days, 1 month, 6 months, and 12 months, compared with Strident denture cleaner by two techniques (immersion and brushing techniques).

The concentration (5 % w / v) was selected according to the results of pilot study.

The results of this study showed that oxalic and tartaric acids have nearly the same effect on surface roughness in relation to Strident by immersion technique for six months, but this result was increased to show high rough surface of samples treated by citric acid for one year.

Treatment with the four solutions led to reduction in weight (0.03 mg) except citric acid (0.49 mg).

Statistical analysis was performed using F–test two–sample.

The results revealed that there was a significant difference at levels 1 % and 5 % between the brushing and immersion techniques, roughness of the surfaces, and period of using each solution.