The Effect of Different Solutions on Optical Behavior of Polished and Glazed Zirconia-Reinforced Lithium Silicate Ceramics

Autor: Farnaz Firouz, Alireza Izadi, Farnoush Fotovat, Somaye Ghorbani Gholiabad, Saeed nikanjam
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of Kerman University of Medical Sciences, Vol 25, Iss 5, Pp 428-440 (2018)
Druh dokumentu: article
ISSN: 2008-2843
Popis: Background: This study sought to assess the effect of glazing and polishing surface treatments on the optical behavior of zirconia-reinforced lithium silicate ceramics thermocycled in different solutions. Methods:Computer-aided design/computer-aided manufacturing ceramics (VITA Suprinity) were cut into samples (n=104) measuring 1.5x14x10 mm according to the manufacturer’s instructions. Also, the samples were then randomly divided into four groups for immersion in artificial saliva, tea, orange juice and cola. A spectrophotometer was used to assess the color change and changes in L* coordinate against a white and a black background. The translucency parameter and contrast ratio were also calculated. The ∆E and L* values were analyzed using two-way ANOVA test. Student’s t-test was applied to analyze TP and CR. Results: The interaction effect of the type of solution and type of surface treatment on color change against a white (P=0.008) and black (p
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