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Volume 32 , Issue 3
June 2012
Pages 329 (e95-e100)

Effect of Postpolymerization Method on the Color Stability of Composite Resins Submitted to Ultraviolet Aging

Paulo Henrique dos Santos, DDS, MSc, PhD/Fernando Isquierdo de Souza, DDS/Ana Paula Albuquerque Guedes, DDS, MSc/Sabrina Pavan, DDS, MSc, PhD

PMID: 22408784
DOI: 10.11607/prd.00.1064

The aim of this research was to evaluate the effect of postpolymerization method on the color stability of resin-based composites. Samples of direct and indirect restorative materials were polymerized with two photo-curing units (Visio photo-curing oven system and LED Elipar Freelight 2). All samples were submitted to an initial chromatic analysis using a spectrometer and submitted to ultraviolet-accelerated artificial aging. The direct material showed less color change than the indirect material, independent of the photo-activation method used. Samples photo cured with the LED system showed less change than those photo cured with the Visio system. The postpolymerization oven did not improve the color stability of direct and indirect resin-based composites. (Int J Periodontics Restorative Dent 2012;32:e95–e100.)

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