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Falkensammer, F; Arnetzl, GV; Wildburger, A; Freudenthaler, J.
Color stability of different composite resin materials.
J Prosthet Dent. 2013; 109(6):378-383
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Autor/innen der Med Uni Graz:
Arnetzl Gerwin
Falkensammer Frank
Wildburger Angelika
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Abstract:
Statement of problem. Data are needed to better predict the color stability of current composite resin materials. Purpose. The purpose of this study was to evaluate the impact of different storage solutions on the color stability of different composite resin materials. Material and methods. Different restorative and adhesive composite resin specimens (dual-polymerizing self-adhesive resin cement, autopolymerizing resin-based cornposite resin, dual-polymerizing resin-based composite resin, nanohybrid composite resin, and microhybrid composite resin) were fabricated and stored in red wine, black tea, chlorhexidine, sodium fluoride, tea tree oil, or distilled water for 4 weeks at 37 degrees C. Color parameters were measured with a colorimeter before and after storage. Total color differences and specific coordinate differences were expressed as Delta E, Delta L, Delta a, and Delta b. A 2-way and 1-way analysis of variance (ANOVA) with Bonferroni adjustment for multiple comparisons were applied for statistical calculations (alpha=.05). Results. Red wine caused the most severe discoloration (Delta E >10), followed by black tea with perceptible (Delta E >2.6) to clinically unacceptable discoloration (Delta E >5.5). Colored mouth rinses discolored the materials to a lesser extent with clinically acceptable values. Dual-polymerizing resin adhesives showed a higher amount of discoloration. Conclusions. Current restorative and adhesive composite resin materials discolor over time under the influence of different storage solutions. The composition related to the polymerizing mode seemed to be a causative factor.
Find related publications in this database (using NLM MeSH Indexing)
Color -
Composite Resins - chemistry
Materials Testing -
Nanocomposites -
Plant Oils -
Polymerization -
Prosthesis Coloring -
Sodium Fluoride -
Spectrophotometry -
Tea -
Wine -

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