Estabilidade de cor de cimentos resinosos ativados de forma foto e dual em função de diferentes cores

Cunha, Leonardo Fernandes da

doi:10.11606/T.25.2013.tde-22112013-112741

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Doctoral Thesis

DOI

https://doi.org/10.11606/T.25.2013.tde-22112013-112741

Document

Doctoral Thesis

Author

Cunha, Leonardo Fernandes da (Catálogo USP)

Full name

Leonardo Fernandes da Cunha

Institute/School/College

Faculdade de Odontologia de Bauru

Knowledge Area

Dentistry

Date of Defense

2013-07-01

Published

Bauru, 2013

Supervisor

Francisconi, Paulo Afonso Silveira (Catálogo USP)

Committee

Francisconi, Paulo Afonso Silveira (President)
Damante, Jose Humberto
Furuse, Adilson Yoshio
Mondelli, Jose
Segalla, Jose Claudio Martins

Title in Portuguese

Estabilidade de cor de cimentos resinosos ativados de forma foto e dual em função de diferentes cores

Keywords in Portuguese

Cor
Estética dentária
Materiais dentários
Resinas compostas

Abstract in Portuguese

O objetivo deste estudo foi o de avaliar a estabilidade de cor de diferentes cores de cimento (transparente, claro, e escuro) polimerizados de forma foto (Choice 2 Bisco, Rely X Veneer - 3M ESPE) ou dual (Variolink II Ivoclar-Vivadent, All Cem FGM). Um espectrofotômetro (Easyshade - VITA) foi usado para medir a cor das amostras (n=6) imediatamente após a confecção do espécime, 7 dias, 30 dias e 90 dias após. Os valores médios de diferença de cor (ΔE) foram maiores para as cores transparente (ΔE = 4,41), seguido pelas cores claras (ΔE = 3,12) e escuras (ΔE = 3,25). Os valores médios de ΔE foram menores para os cimentos fotoativados (Choice 2 ΔE = 2,79; Rely X VeneerΔE = 3,49) em comparação com os cimentos duais (Variolink II ΔE = 3,60; All Cem ΔE = 4,48). Um aumento dos valores ΔE foram observados com o aumento dos períodos de tempo avaliados (7 dias ΔE = 2,79; 30 dias ΔE = 3,73; 90 dias ΔE = 4,25).

Title in English

Redox potencial of ascorbic acid after sodium hypochlorite deproteinization to root dentine with different adhesive systems

Keywords in English

Color
Composites
Dental aesthetics
Dental materials

Abstract in English

The aim of this study was to evaluate the color stability of different cement color (transparent, clear, and dark) of light-polymerized resin cement (Choice 2 - Bisco, Rely X Veneer - 3M ESPE) or dual-cured cement (Variolink II Ivoclar- Vivadent , All Cem - FGM). Spectrophotometer (Easyshade - VITA) was used to measure the color of samples (n = 6) immediately after preparation, 7 days, 30 days and 90 days. The mean color difference (ΔE) was higher for transparent colors (ΔE = 4,41), followed by light (ΔE = 3,12) and dark colors (ΔE = 3,25). The mean values of ΔE were lower for the light-polymerized resin cement (Choice 2 ΔE = 2,79; Rely X Veneer ΔE = 3,49) compared to the dual-cured cement (Variolink II ΔE = 3,60; All Cem ΔE = 4,48). An increase in ΔE values was observed with increasing periods of time (7 days ΔE = 2,79; 30 days ΔE = 3,73; 90 days ΔE = 4,25).

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Publishing Date

2013-11-22

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