Please use this identifier to cite or link to this item: http://repositorio.unitau.br/jspui/handle/20.500.11874/2053
metadata.dc.type: Artigo de Periódico
Title: Influence of Different Ceramic Systems on Marginal Misfit
Authors: Vargas S.P.
Neves, Ana Christina Claro
Vitti R.
Amaral M.
Henrique M.N.
Silva-Concílio, Laís Regiane da
Abstract: OBJECTIVE: the aim of this study was to evaluate the marginal misfit at the interface between a ceramic coping and its abutment.METHODS: Twenty-four specimens were made with solid abutments. The specimens were divided into 3 groups according to the ceramic system (n = 8): Lava (zirconia), IPS e.max Press (lithium disilicate), and IPS Empress Esthetic (leucite). All copings were cemented with resin luting agent (RelyX U200) and the marginal misfit were evaluated at 3 different times: initial, after cementation, and after mechanical cycling using a linear measuring microscope (Measuring Microscope STM-Olympus) at a magnification of 40x. All specimens were subjected to mechanical cycling (1 million cycles) by an universal testing machine (Instron 8800). The results were statistically analyzed using Analysis of Variance and Student's t-test (α = 0.05).RESULTS: all groups showed an increase in the marginal misfit after cementation. The lithium disilicate group demonstrated the lowest interacial gap values at each evaluation (p = 0.001). The zirconia and leucite groups showed similar interfacial gap values (initial, p = 0.244; and post cementation, p = 0.751).CONCLUSIONS: the cementation increase the marginal misfit, but the mechanical cycling did not influence the marginal misfit of the ceramics systems evaluated. Copyright© 2017 Dennis Barber Ltd.
metadata.dc.language: Inglês
metadata.dc.rights: Acesso Restrito
metadata.dc.identifier.doi: 10.1922/EJPRD_01702Vargas04
URI: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049870860&doi=10.1922%2fEJPRD_01702Vargas04&partnerID=40&md5=e205e7cc3cc6c134da986a127d76acb5
http://repositorio.unitau.br/jspui/handle/20.500.11874/2053
Issue Date: 2017
Appears in Collections:Artigos de Periódicos

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