Evaluation of color alteration of heat-polymerized acrylic resin
DOI:
https://doi.org/10.32828/mdj.v5i4.561Keywords:
Key words: color alteration, heat-polymerized acrylic resin, denture discoloration.Abstract
The present study investigated the color alteration of heat-polymerized acrylic resin specimens exposed to 7 staining solutions (black tea, green tea, coffee, Pepsi, tomato paste, cigarette and diet Pepsi) for two weeks and compared with that exposed to distilled water. Five specimens were used for each group. The specimens were of rectangular shape measuring 5mm width, 40mmlength and 2mm thickness. After the two weeks the light transmission percent values for each specimen were determined by a spectrophotometric device. The result of this study revealed that the distilled water specimen group had the highest mean value of light transmission followed by diet Pepsi and Pepsi groups, coffee group had the lowest one. Further, coffee had a staining effect on resin specimens more than tea, cigarette and tomato paste group. In addition this study showed that resin specimens discolored by black tea more than green tea.
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