Studying the effect of different separating medium on the roughness of the tissue surface of acrylic denture base : in vitro study

الملخص EN

Objective : in order to evaluate the effect of different typed of Separating Medium on the roughness of the fitted tissue surface of acrylic denture base.

Methodology : chosen three types of separating medium (Group A Tin foil), (Group B Detery Isolant),(Group C Cold Mould Seal), used 30 samples of hot cure acrylic resin, 10 samples for each group, after complete curing of these samples, Profilometer device was used to measure the surface roughness of each sample in all groups.

Results : using One Way ANOVA Test and LSD test, the results were highly significant in differences among all groups.

Although (Group A) showing lest roughness, (Group B) showing a satisfactory result of roughness, (While Group C) Showing the highest unsatisfactory surface roughness of acrylic denture base.

Recommendations : make other studies on the effect of different separating medium on other properties of the fitted tissue surface of acrylic denture base such as hardness.