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Colour stability of sectional laminate veneers: A laboratory study
Author(s) -
Elter B,
Aladağ A,
Çömlekoğlu ME,
Dündar Çömlekoğlu M,
Kesercioğlu Aİ
Publication year - 2021
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/adj.12837
Subject(s) - veneer , cementation (geology) , materials science , cement , dentistry , curing (chemistry) , composite material , medicine
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 (∆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 (∆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.