Color stability of ceromer of different thicknesses and resin adhesive materials of different types after accelerated aging
10.7518/hxkq.2015.02.020
- VernacularTitle:人工老化对不同厚度瓷聚体及不同类型树脂黏固材料颜色稳定性的影响
- Author:
Likai WANG
1
;
Yanan LIU
;
Yan ZHENG
;
Pingping LI
Author Information
1. 中国康复研究中心北京博爱医院口腔科
- Keywords:
color stability;
ceromer;
resin adhesive material;
accelerated aging
- From:
West China Journal of Stomatology
2015;(2):201-205
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveThis?study?aims?to?investigate?the?color?stability?of?ceromer?with?different?thicknesses?and?different?types?of?resin?adhesive?materials?after?accelerated?aging?and?provide?references?for?clinical?application?and?selections.?Methods?Nine?groups?of?experimental?samples?were?used,?and?each?group?contained?five?samples.?We?made?joint?samples?with?ceromer?having?three?different?thicknesses?(1.00,?0.75,?0.50?mm)?combined?with?three?different?resin?adhesive?materials?(RelyX?Veneer,?RelyX?Unicem,?Filtek?Z350?Flow),?respectively.?All?samples?were?placed?into?Xenon?Lamp?Aging?Instrument?to?implement?accelerated?aging.?Spectrophotometer?was?used?to?measure?the?lightness?(L*),?red?green?color?value?(a*),?and?blue?yellow?color value (b*) of all samples before and after accelerated aging. The change of lightness (ΔL), red green color value (Δa), blue yellow color value (Δb), and color variation (ΔE) were also calculated. We investigated the influence of ceromer veneer thicknesses?and?resin?adhesive?material?types?on?color?variation?by?two-factor?analysis?of?variance.?Results???The?thickness?and?type factors showed significant influence on ΔE values, and exhibited interactions (P<0.05). The ΔE values of all experimen-tal?groups?were?lower?than?3.3.?After?the?accelerated?aging?process,?all?L*,?a*,?and?b*?values?of?the?experimental?groups?decreased?and the ΔL values were lower than 2.0.Conclusion???Cero-mer?veneer?thickness?and?resin?adhesive?material?types?could?affect?the?color?stability?of?ceromer?veneer?and?resin?adhe-sive?materials.?The?changes?in?lightness?and?color?in?cero-mer?veneer?and?resin?adhesive?materials?are?considered?clinically?acceptable?after?accelerated?aging.
