@misc{10481/86802,
year = {2021},
month = {5},
url = {https://hdl.handle.net/10481/86802},
abstract = {Objective. To evaluate optical properties, and translucency and opalescence parameters of
one-shaded resin-based composites.
Methods. Three one-shaded resin composites (OM — Omnichroma; VP — Venus Pearl;
and VD — Venus Diamond) and a group-shaded resin composite (FU- Filtek Universal
A2) were used. Three composite discs from each material were fabricated for each of
the following thickness: 0.5, 1.0 and 2.0 mm. Diffuse reflectance was measured against
white and black backgrounds using a calibrated spectroradiometer, CIE D65 illuminant
and the CIE 45◦/0◦ geometry. Translucency parameter (TP) was calculated using E*
ab and
E00. Scattering (S) and absorption (K) coefficients and transmittance (T%) were calculated
using Kubelka–Munk’s equations, and a reflection spectrophotometer was used to mea-
sure the opalescence parameter (OP). Data was statistically analyzed using Kruskal–Wallis,
Mann–Whitney tests, and VAF coefficient.
Results. Spectral distributions of S, K and T were wavelength dependent, showing significant
differences between materials of the same thickness and for different thicknesses of the
same material (p < 0.001). OM showed the greatest translucency values for all thicknesses.
Translucency decreased as thickness increased with statistically significant differences (p <
0.005). Values of TPab and TP00 between thicknesses were above of translucency thresh-
olds for all materials. VP and VD showed the lowest OP values.
Significance. One-shaded resin-based composites showed different optical behavior than the
group-shaded resin-based composite. Understanding the optical behavior of the one-shaded
resin-based composites is essential to optimize their clinical performance.},
organization = {Spanish Ministry of Science, Innovation and Universities PGC2018-101904-A-100, EQC2019-005920},
organization = {University of Granada, Spain (A.TEP.280.UGR18)},
organization = {CNPq do Brasil (302587/2017-9)},
publisher = {Elsevier},
keywords = {Translucency},
keywords = {Scattering},
keywords = {Absorption},
keywords = {Transmittance},
keywords = {Opalescence},
keywords = {One-shaded resin-based composite},
keywords = {Group-shaded resin-based},
keywords = {Composites},
title = {Optical behavior of one-shaded resin-based composites},
doi = {10.1016/j.dental.2021.02.011},
author = {Lucena Martín, Cristina and Ruiz López, Javier and Pulgar Encinas, Rosa María and Della Bona, Alvaro and Pérez Gómez, María del Mar},
}