International Journal of Prosthodontics and Restorative Dentistry

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VOLUME 5 , ISSUE 3 ( July-September, 2015 ) > List of Articles

RESEARCH ARTICLE

The Effect of Outdoor Weathering on Color Stability of Silicone and Acrylic Resin, Pigments-A Comparative Evaluation: An in vitro Study

K Lekha, H Dharanendra Kumar

Citation Information : Lekha K, Kumar HD. The Effect of Outdoor Weathering on Color Stability of Silicone and Acrylic Resin, Pigments-A Comparative Evaluation: An in vitro Study. Int J Prosthodont Restor Dent 2015; 5 (3):81-85.

DOI: 10.5005/jp-journals-10019-1135

Published Online: 01-09-2015

Copyright Statement:  Copyright © 2015; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Purpose

Evaluate the effect of outdoor weathering on color stability of silicone and heat-cure acrylic with two different pigments.

Materials and methods

Total of 80 circular disk specimens, 40 silicone elastomer and 40 heat-cure clear acrylic resin were fabricated in the prepared mold and two dry earth pigments burnt sienna and cobalt blue was added to the specimens and it was subjected to simulated outdoor weathering. Before and after weathering, CIE values of both control and weathering groups were recorded by using spectrophotometer and tabulated. The obtained data were subjected to statistical analysis.

Results

Silicone elastomer with burnt sienna showed more color change when exposed to weathering followed by silicone with cobalt blue. Heat-cure with cobalt blue had shown some color change, heat-cure and burnt sienna were the most color stable.

Conclusion

From the study, it can be concluded that heat-cure acrylic resin with burnt sienna most color stable than silicone elastomer.

How to cite this article

Lekha K, Kumar HD, Meshramkar R, Nadiger RK. The Effect of Outdoor Weathering on Color Stability of Silicone and Acrylic Resin, Pigments-A Comparative Evaluation: An in vitro Study. Int J Prosthodont Restor Dent 2015;5(3):81-85.


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