Colour stability of sectional laminate veneers: A laboratory study
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Abstract
Background This study aimed to evaluate the colour stability of sectional laminate veneers (SLVs) fabricated with four and cemented with two different materials. Methods Eighty SLVs were prepared with a thickness of 0.2-0.4 mm from IPS e.max CAD, Lava Ultimate, CEREC Blocs and IPS InLine and were cemented with Variolink Veneer and Variolink N to form eight groups (n:10). After cementation, specimens underwent 5000 thermocyles prior to immersion in a coffee solution. Results Colour change before and after thermal cycling did not reveal significant differences (P > 0.05). After coffee immersion, significant colour change was observed in all groups (P > 0.05). Only IPS InLine cemented with Variolink Veneer was considered clinically acceptable ( increment E < 3.3). According to observer scorings, marginal discolouration was higher in Lava Ultimate, while no discolouration was observed in IPS InLine. Dual or light-curing resin cements showed insignificant differences. Conclusions SLVs fabricated with different aesthetic materials underwent perceptible ( increment E > 3.3) discolouration except for the IPS InLine cemented with light-curing resin cement. Cementation with either dual-curing or light-curing resin cements does not by itself affect colour stability. The highest marginal discolouration was in the Lava Ultimate group while no discolouration was detected in the IPS InLine group.
Description
Elter, Bahar/0000-0002-8971-6819
Keywords
Colour stability, discoloration, laminate veneers, resin nano ceramic, sectional veneers
Turkish CoHE Thesis Center URL
Citation
9
WoS Q
Q3
Scopus Q
Q2
Source
Volume
66
Issue
3
Start Page
314
End Page
323