Influence of bleaching treatment on flexural resistance of hybrid materials.
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/12/2009
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Resumo |
The aim of this study is to evaluate the flexural resistance of three types of restorative materials: compomer (Freedom), resin-modified glass-ionomer (Vitremer) and composite resin (Esthet-X), observing whether the application of bleaching agent can cause alterations of their flexural properties. Sixty samples were made using a 10 x 1 x 1 mm brass mold, and divided into three groups: G1- Freedom (SDI); G2- Vitremer (3M ESPE); G3- Esthet-X (Dentsply). On half of the samples of each group (10 samples) the bleaching treatment was applied and the other half used as control, was stored in distilled water at a temperature of 37 degrees C. Whiteness HP Maxx bleaching system was applied on the sample surface following the manufacturer's recommendations, simulating the bleaching treatment at the clinic. After this period, a flexural strength (three-point bending) test was conducted using (EMIC DL 1000) machine until the samples fractured. The data were submitted to ANOVA and Tukey tests. Of the restorative materials studied, G3-(87.24 +/- 31.40 MPa) presented the highest flexural strength, followed by G1-(61.67 +/- 21.32 MPa) and G2-(61.67 +/- 21.32 MPa). There was a statistical difference in flexural strength after the bleaching treatment. It was concluded that the use of a beaching agent can promote significant alteration of the flexural strength of these restorative materials. |
Formato |
75-80 |
Identificador |
http://www.actaodontologicalat.com/archivo/v22n2/fulltext/articulo1.pdf http://www.actaodontologicalat.com/archivo/v23n2/articulo1.pdf Acta odontológica latinoamericana : AOL, v. 22, n. 2, p. 75-80, 2009. 0326-4815 http://hdl.handle.net/11449/71416 2-s2.0-79958086056 |
Idioma(s) |
eng |
Relação |
Acta Odontológica Latinoamericana (AOL) |
Direitos |
openAccess |
Palavras-Chave | #compomer #Esthet X #Esthet-X #Freedom Compomer #glass ionomer #resin #Vitremer #dental bonding #dental care #dental surgery #materials testing #Compomers #Composite Resins #Dental Bonding #Dental Restoration, Permanent #Glass Ionomer Cements #Materials Testing #Tooth Bleaching |
Tipo |
info:eu-repo/semantics/article |