Color characteristics of various computerized machinable ceramics veneered to yttria-stabilized tetragonal zirconia polycrystalline upon different hybridized techniques
Year: 2024
Type: article
Abstract: Background: Hybridization technique impacted color of ceramic veneered zirconia.This study examined color characteristics of different ceramics veneered zirconia upon different hybridized techniques.Material and Methods: 120 zirconia specimens (0.8 mm thickness, 12 mm diameter) were prepared from 3-yttria-stabilized tetragonal zirconia polycrystalline and unintentionally veneered with Vitabloc Mark-II (Vm), IPS e. max CAD (Em), Vita-Suprinity (Vs), and Celtra-Duo (Cd), by CAD-bonded (Cb) versus CAD-fused (Cf) hybridization (n=15/group).CIE-L*a*b* color characteristics were determined for translucency parameter (TP), contrast ratio (CR), opalescence parameter (OP), and color difference (ΔE diff ).Microstructures were investigated with SEM and XRD.Analysis of Variance and Bonferroni comparisons were determined for significant differences (p˂0.05).Results: TP and OP were significantly higher, but lower CR and ΔE diff for Vm and Em than Cd and VS.Cf hybridized technique significantly decreased TP and OP but increased CR and ΔE diff than Cb, which amplified color alteration.Better TP and OP, with less CR and ΔE diff , were achieved for zirconia veneering with either Vm or Em, compared to Vs or Cd, whether hybridized with Cb or Cf technique.Conclusions: Different veneering ceramics and hybridized techniques significantly altered color characteristics of ceramic veneered zirconia.Zirconia veneering with either Vm or Em appeared to produce better translucence and opalescence, with less contrast and color alteration than veneering with either Vs or Cd.CAD-fused decreased translucency, opalescence, and intensified color alteration due to t→m transformation.Nevertheless, the color alteration of ceramics veneered zirconia still rendered an acceptable limit, except for both Vs and Cd upon Cf hybridization.
DOI: 10.4317/jced.62187
Authors: N. Juntavee, A. Juntavee, S. Tangsatchatham
Institution: Khon Kaen University
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
Funder: Khon Kean University
OpenAlex ID: W4405954032