The effect of preheating of composite resin on its color stability after immersion in tea and coffee solutions: An
Journal
Journal of clinical and experimental dentistry
ISSN: 1989-5488
Titre abrégé: J Clin Exp Dent
Pays: Spain
ID NLM: 101603132
Informations de publication
Date de publication:
Dec 2019
Dec 2019
Historique:
received:
15
10
2019
accepted:
04
11
2019
entrez:
12
12
2019
pubmed:
12
12
2019
medline:
12
12
2019
Statut:
epublish
Résumé
One of the concerns in using composite resins is color change. The aim of this study was to investigate the effect of preheating on color stability of composite resins when immersed in coffee and tea. This experimental study included 60 composite disks. The samples were divided into 2 groups, one group prepared at room temperature and the other prepared at 68 °C. After curing, the samples were placed in 37 °C distilled water for 24 hours. The color of the samples was measured (t0) using spectrophotometer according to CIE-L*a*b* system. The samples of each group were then divided into 3 subgroups and respectively immersed in distillated water, coffee and tea for 30 days and the final color (t1) was measured. The difference between the measured colors was calculated (∆E) and the results were analyzed using version 21.0 of SPSS software, Paired t-test, ANOVA, Tukey's test, and Dunnett t-test. The preheated composites showed significantly lower staining in the coffee solution than the room temperature composites ( Within the limits of this study, preheating was effective to improve color stability of composite resin after long time immersion in coffee solution.
Sections du résumé
BACKGROUND
BACKGROUND
One of the concerns in using composite resins is color change. The aim of this study was to investigate the effect of preheating on color stability of composite resins when immersed in coffee and tea.
MATERIAL AND METHODS
METHODS
This experimental study included 60 composite disks. The samples were divided into 2 groups, one group prepared at room temperature and the other prepared at 68 °C. After curing, the samples were placed in 37 °C distilled water for 24 hours. The color of the samples was measured (t0) using spectrophotometer according to CIE-L*a*b* system. The samples of each group were then divided into 3 subgroups and respectively immersed in distillated water, coffee and tea for 30 days and the final color (t1) was measured. The difference between the measured colors was calculated (∆E) and the results were analyzed using version 21.0 of SPSS software, Paired t-test, ANOVA, Tukey's test, and Dunnett t-test.
RESULTS
RESULTS
The preheated composites showed significantly lower staining in the coffee solution than the room temperature composites (
CONCLUSIONS
CONCLUSIONS
Within the limits of this study, preheating was effective to improve color stability of composite resin after long time immersion in coffee solution.
Identifiants
pubmed: 31824596
doi: 10.4317/jced.56438
pii: 56438
pmc: PMC6894917
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e1151-e1156Informations de copyright
Copyright: © 2019 Medicina Oral S.L.
Déclaration de conflit d'intérêts
Conflict of interest statement:This article has no conflict of interest.
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