Accelerated aging affects color stability of provisional restorative materials.

  title={Accelerated aging affects color stability of provisional restorative materials.},
  author={Pamela G Doray and Xiaoguang Wang and John Michael Powers and John O. Burgess},
  journal={Journal of prosthodontics : official journal of the American College of Prosthodontists},
  volume={6 3},
PURPOSE The color stability of two shades each of five acrylic resin and seven resin composite provisional restorative materials was evaluated by reflection spectrophotometry following in vitro accelerated aging. MATERIALS AND METHODS Specimens of provisional restorative materials were polymerized according to manufacturers' instructions and aged in an artificial aging chamber with exposure to a total ultraviolet irradiation of 60 kJ/m2. Color was measured by CIE L*a*b* on a reflection… CONTINUE READING

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