Abstract
Introduction
In a highly social competitive society, aesthetic standards are increasingly refined as the conception and desire of a perfect smile considerably increased the search for dental treatment, with the developing of materials that could propitiate those results. Restorations clinical success includes its longevity, from the functional point of view, with no infiltrations, and aesthetic, through the color conservation and proper surface smoothness.
Aim
This work analyzes the color change of two nanoparticulate resins: Z350 and Bulk Fill (3M ESPE) and two polishing systems: SofLex Disk and rubber spiral SofLex Disk (3M ESPE), divided in control group (deionized water) and experimental group (coffe), during 21 days.
Material and method
The resin discs were prepared by a standardized mode and submerged in deionized water for 7 days at 37 °C in incubator before initial color evaluation, followed by the immersion in each solution to final color analysis. Both used a spectrophotometer (CM-700d, Konica Minolta, Osaka, Japan) and ΔE CIELAB scale.
Result
It was seen that both resins presented color change when exposed to coffee, however the Z350 resin presented a greater variation compared to Bulk Fill resin.
Conclusion
Although coffee is a dye solution, the polishing systems did not present any effect on chromatic alteration.
Descriptors:
Coffee; composite resins; pigmentation