Colorimetric study about the stratification ’s effect on colour perception of resin composites

AbstractTo evaluate the influence of a different order of dentin and enamel layers on stratification appearance of different resin composites. 144 Dentin (D) and Enamel (E) composite samples (Clearfil Majesty ES-2 Premium, Brilliant EverGlow, Estelite Asteria), 1  mm thick, were divided into 12 configurations for each composite, with Enamel–Dentin–Dentin–Enamel (EDDE) assumed as target. The colour specification was conducted using a spectrophotometer, elaborating the results with the CIEL*a*b* colour coordinates and calculating the colour difference in terms of\(\Delta E_{ab}^{*}\) quantity. A value of this last major of 3.3 was considered not clinically acceptable. Moreover, data were analyzed using two-way analysis of variance and Tukey post hoc test (P <  0.05). For Clearfil Majesty ES-2 Premium and Brilliant EverGlow, six configurations showed\(\Delta E_{ab}^{*}\) >  3.3 compared to gold standard EDDE.\(\Delta E_{ab}^{*}\) was influenced especially byb* andL* coordinates (P <  0.05). EDED showed no visual difference (0 <  \(\Delta E_{ab}^{*}\) <  1.1) for both composites. For Estelite Asteria, two configurations reported\(\Delta E_{ab}^{*}\) >  3.3 compared to EDDE. In particular, theL* coordinate influenced\(\Delta E_{ab}^{*}\) results (P <  0.05). EDDD was the best configuration (0 <  \(\Delta E_{ab}^{*}\) <  1.1). Within the limits of a vitro study, Brilliant EG showed more dependence from order and ...

Source: Odontology - October 28, 2019 Category: Dentistry Source Type: research