Physical evaluation of the luting systems for veneer ceramic after aging / Avaliação física dos sistemas de cimentação para faceta cerâmica após envelhecimento

Lucia Trazzi Prieto, Cíntia Tereza de Pimenta Araújo, Dayane Carvalho Ramos Salles de Oliveira, Erick Kamiya Coppini, Josué Junior Araujo Pierote, João Victor Frazão Câmara, Gisele Damiana da Silveira Pereira, Isabel Ferreira Barbosa, Justine Monteiro Monnerat Tinoco, Renato Feres de Carvalho Vianna, Hana Fried, Carlos Tadeu Santos Dias, Luis Alexandre Maffei Sartini Paulillo, João Victor Frazão Câmara

Abstract


The aim of this in vitro study was evaluated the amount of color change and degree of conversion of the luting systems for ceramic veneer cementation. Forty-eight human incisors were randomly divided into six groups (n=8) according to the bonding procedure: RelyX Veneer/Single Bond 2; RelyX ARC/Single Bond 2; Filtek Z350 XT Flowable /Single Bond 2; Variolink Veneer/Tetric N-Bond; Variolink II/Tetric N-Bond; Tetric N-Flow/Tetric N-Bond. Ceramic veneers (IPS Empress Esthetic) were cemented using the different bonding procedures. Color differences of the ceramic surface after cementation and 300 h(150kJ/m2) of UV aging test, were examined with a colorimeter. Fourier transform infrared spectroscopy (FT-IR) was used to evaluate the degree of conversion for each luting system. Data were analyzed with one-way ANOVA and Tukey's test (α=0.05). All the luting systems demonstrated significant changes in color stability. The ΔE of the systems ranged from 6,11 to 9,33. Tetric N-Flow and RelyX Veneer showed the highest degree of conversion, while lowest values were found for RelyX ARC. All luting systems demonstrated clinically unacceptable (ΔE≥ 3.3) color changes. Despite to the dual cure of the RelyX ARC luting cement, it showed the lowest degree of conversion values, while Tetric N-Flow and RelyX Veneer presented the highest and similar degree of conversion.


Keywords


color, dental veneers, aging, resin cements.

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References


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DOI: https://doi.org/10.34117/bjdv8n5-094