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Title: Color stability of CAD/CAM interim material for long-term fixed dental prostheses vs. conventional materials after immersion in different staining solutions
Author: Peñate, Lissethe
Mercadé Bellido, Montserrat
Arregui, María
Roig, Miguel
Basilio, Juan
Cedeño, Rosario
Keywords: Color
Pròtesis dentals
Sistemes CAD-CAM
Materials dentals
Dental prosthesis
CAD/CAM systems
Dental materials
Issue Date: 13-Apr-2021
Publisher: MDPI
Abstract: The color stability of interim computer-aided design and computer-assisted manufacturing (CAD/CAM) materials has not been exhaustively investigated. The aim of this study was to com- pare the translucency (TP) and contrast ratio (CR) of CAD/CAM blocks and conventional interim materials, as well as the effects of varnish application and tooth-brushing on color stability after immersion in different staining solutions. Four hundred and eighty specimens were fabricated with four different interim materials (n = 120) and were divided into three experimental, and one control group (n = 30). The color measurements were taken at the initial time (T0), 24 h (T1), 7 days (T2), and 30 days (T3) after immersion in different solutions. CIEDE2000 (∆E00) values were analyzed with ANOVA and Fischer's LSD test with a 95% confidence interval. The relationship between TP and CR was analyzed with a Pearson correlation. All interim materials showed a significant difference (p < 0.05) in color change after 30 days. Results showed that polyethyl methacrylate resins (PEMA) had the highest stability over time. The TP and CR were statistically significant (p < 0.05). It was observed that brushing improved the color stability but the ∆E00 were the highest when the varnish alone or varnish and brushing were used, except in the bis-acryl group, in which varnish and brushing decreased the color stainability.
Note: Reproducció del document publicat a:
It is part of: Journal of Composite Science, 2021, vol. 5, num. 106
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ISSN: 2504-477X
Appears in Collections:Articles publicats en revistes (Odontoestomatologia)
Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL))

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