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Influence of thickness and translucency of lithium disilicate ceramic on degree of conversion of resinous materials

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Influence of thickness and translucency of lithium disilicate ceramic on degree of conversion of resinous materials

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dc.contributor.author Liporoni, Priscila-Christiane-Suzy es
dc.contributor.author Ponce, Alcira-Cinthia-Rodríguez es
dc.contributor.author de Freitas, Maiara-Rodrigues es
dc.contributor.author Zanatta, Rayssa-Ferreira es
dc.contributor.author Pereira, Maria-Clara-Santos es
dc.contributor.author Catelan, Anderson es
dc.date.accessioned 2021-01-25T11:09:30Z
dc.date.available 2021-01-25T11:09:30Z
dc.date.issued 2020 es
dc.identifier.citation Liporoni, Priscila-Christiane-Suzy ; Ponce, Alcira-Cinthia-Rodríguez ; de Freitas, Maiara-Rodrigues ; Zanatta, Rayssa-Ferreira ; Pereira, Maria-Clara-Santos ; Catelan, Anderson. Influence of thickness and translucency of lithium disilicate ceramic on degree of conversion of resinous materials. En: Journal of Clinical and Experimental Dentistry, 12 8 2020: 745-748 es
dc.identifier.uri https://hdl.handle.net/10550/77519
dc.description.abstract In this study was assessed the degree of conversion (DC) of amine-free resin cements light cured through lithium disilicate-reinforced ceramics at different thicknesses and translucency. Specimens were divided into 21 groups (n = 5) according to luting agent used: Variolink Esthetic LC (Light shade), RelyX Ultimate (A1 shade), and Filtek Z350 XT Flow (A1 shade); the ceramic translucency: low (LT) and high (HT); and the ceramic thickness: no ceramic (control), 0.5 mm, 1 mm, and 2 mm. A Teflon mold with (5 x 5 x 0.5 mm) was used to standardize the cement and over it the ceramic block from each group was placed. Set was cured using a polywave LED light (1200 mW/cm2 - Bluephase G2) for 40 s. FTIR spectra of uncured and cured materials was obtained and DC calculated from the height of the peaks 1610 and 1640 cm-1. Data were submitted to ANOVA followed by Tukey?s test (? = 0.05). There was a significant difference for luting agents (p< 0.0001) and translucency (p = 0.025), but not for thickness (p = 0.73). Dual amine-free RelyX Ultimate showed the lowest DC values and higher translucency promoted higher DC. Dual amine-free cement showed the lowest monomer conversion and higher translucency ceramics promoted a higher DC. es
dc.title Influence of thickness and translucency of lithium disilicate ceramic on degree of conversion of resinous materials es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.56921 es
dc.type.hasVersion VoR es_ES

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