Color change measurements of heat cure fiber reinforced acrylic resin denture base : a comparative study

الملخص EN

Background : the aim was to find out the effect of different food beverages on fiber reinforced acrylic resin in comparison with conventional acrylic resin.

Materials and Methods: Acrylic blocks were made by incorporation of glass fibers into the polymer and flasked in stone models of special sizes then deflasked and divided into four groups each composed of five specimens stored into Tae, Coffee, Pepsi cola and Distilled water for different periods of time and compared with conventional acrylic resin by the use of visible light spectrophotometer.

Results : There were significant differences between the four groups of the same material compared with conventional acrylic resin especially with aging under visible light spectrophotometer.

Conclusion: it is better to use conventional acrylic without fiber reinforcement for fabrication of dentures to retain their colors for longer periods of time without changes in the oral environment.