Evaluation Of Phenyl-propanedione On Yellowing And Chemical-mechanical Properties Of Experimental Dental Resin-based Materials

dc.creatorRamos Salles de Oliveira
dc.creatorDayane Carvalho; Souza-Junior
dc.creatorEduardo Jose; Dobson
dc.creatorAdam; Costa Correr
dc.creatorAna Rosa; Brandt
dc.creatorWilliam Cunha; Coelho Sinhoreti
dc.creatorMario Alexandre
dc.date2016
dc.datenov-dez
dc.date2017-11-13T13:23:51Z
dc.date2017-11-13T13:23:51Z
dc.date.accessioned2018-03-29T05:56:25Z
dc.date.available2018-03-29T05:56:25Z
dc.identifierJournal Of Applied Oral Science. Univ Sao Paulo Fac Odontologia Bauru, v. 24, p. 555 - 560, 2016.
dc.identifier1678-7757
dc.identifier1678-7765
dc.identifierWOS:000392840800003
dc.identifier10.1590/1678-775770160058
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572016000600555&lng=en&tlng=en
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/328178
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1365203
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionTo evaluate the influence of phenyl-propanedione on yellowing and chemical-mechanical properties of experimental resin-based materials photoactivated using different light curing units (LCUs). Material and Methods: Experimental resin-based materials with the same organic matrix (60:40 wt% BisGMA:TEGDMA) were mechanically blended using a centrifugal mixing device. To this blend, different photoinitiator systems were added in equimolar concentrations with aliphatic amine doubled by wt%: 0.4 wt% CQ; 0.38 wt% PPD; or 0.2 wt% CQ and 0.19 wt% PPD. The degree of conversion (DC), flexural strength (FS), Youngs modulus (YM), Knoop hardness (KNH), crosslinking density (CLD), and yellowing (Y) were evaluated (n=10). All samples were light cured with the following LCUs: a halogen lamp (XL 2500), a monowave LED (Radii), or a polywave LED (Valo) with 16 J/cm2. The results were analysed by two-way ANOVA and Tukeys test (alpha=0.05). Results: No statistical differences were found between the different photoinitiator systems to KNH, CLS, FS, and YM properties (p >= 0.05). PPD/CQ association showed the higher DC values compared with CQ and PPD isolated systems when photoactivated by a polywave LED (p <= 0.05). Y values were highest for the CQ compared with the PPD systems (p?0.05). Conclusion: PPD isolated system promoted similar chemical and mechanical properties and less yellowing compared with the CQ isolated system, regardless of the LCU used.
dc.description24
dc.description6
dc.description555
dc.description560
dc.descriptionFAPESP - Sao Paulo Research Foundation [2013/04241-2]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageEnglish
dc.publisherUniv Sao Paulo Fac Odontologia Bauru
dc.publisherBauru
dc.relationJournal of Applied Oral Science
dc.rightsaberto
dc.sourceWOS
dc.subjectDental Adhesive
dc.subjectDental Curing Lights
dc.subjectDental Photoinitiators
dc.subjectPhysical And Chemical Properties
dc.titleEvaluation Of Phenyl-propanedione On Yellowing And Chemical-mechanical Properties Of Experimental Dental Resin-based Materials
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución