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Effects of cement-curing mode and light-curing unit on the bond durability of ceramic cemented to dentin

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorPassos, Sheila Pestana
dc.creatorSouza, Rodrigo Othávio Assunção
dc.creatorMichida, Silvia Masae Araújo
dc.creatorZamboni, Sandra Costa
dc.creatorde Oliveira, Simone Helena Gonçalves
dc.date2014-05-27T11:28:36Z
dc.date2016-10-25T18:45:09Z
dc.date2014-05-27T11:28:36Z
dc.date2016-10-25T18:45:09Z
dc.date2013-03-01
dc.date.accessioned2017-04-06T02:15:47Z
dc.date.available2017-04-06T02:15:47Z
dc.identifierBrazilian Oral Research, v. 27, n. 2, p. 169-175, 2013.
dc.identifier1806-8324
dc.identifier1807-3107
dc.identifierhttp://hdl.handle.net/11449/74746
dc.identifierhttp://acervodigital.unesp.br/handle/11449/74746
dc.identifier10.1590/S1806-83242013005000005
dc.identifierS1806-83242013005000005
dc.identifierWOS:000315976900014
dc.identifier2-s2.0-84878709294.pdf
dc.identifier2-s2.0-84878709294
dc.identifierhttp://dx.doi.org/10.1590/S1806-83242013005000005
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/895506
dc.descriptionThe aim of this study was to evaluate the effects of different light-curing units and resin cement curing types on the bond durability of a feldspathic ceramic bonded to dentin. The crowns of 40 human molars were sectioned, exposing the dentin. Forty ceramic blocks of VITA VM7 were produced according to the manufacturer's recommendations. The ceramic surface was etched with 10% hydrofluoric acid/60s and silanized. The dentin was treated with37% phosphoric acid/15s, and the adhesive was applied. The ceramic blocks were divided and cemented to dentin according to resin cement/RC curing type(dual-and photocured), light-curing unit (halogen light/QTH and LED), and storage conditions (dry and storage/150 days + 12,000 cycles/thermocycling). All blocks were stored in distilled water (37°C/24h) and sectioned (n = 10): G1-QTH + RC Photo, G2-QTH + RC Dual, G3-LED + RC Photo, G4-LED + RC Dual. Groups G5, G6, G7, and G8 were obtained exactly as G1 through G4, respectively, and then stored and thermocycled. Microtensile bond strength tests were performed (EMIC), and data were statistically analyzed by ANOVA and Tukey's test (5%). The bond strength values (MPa) were: G1-12.95 (6.40)ab; G2-12.02 (4.59)ab; G3-13.09 (5.62)ab; G4-15.96 (6.32)a; G5-6.22 (5.90)c; G6-9.48 (5.99)bc; G7-12.78 (11.30)ab; and G8-8.34 (5.98)bc. The same superscript letters indicate no significant differences. Different light-curing units affected the bond strength betweenceramic cemented to dentin when the photocured cement was used, and only after aging (LED>QTH). There was no difference between the effects of dual-and photo-cured resin-luting agents on the microtensile bond strength of the cement used in this study.
dc.languageeng
dc.relationBrazilian Oral Research
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCeramics
dc.subjectDentin
dc.subjectResin Cements
dc.subjectdesensitizing agent
dc.subjectresin cement
dc.subjectwater
dc.subjectanalysis of variance
dc.subjectceramics
dc.subjectchemistry
dc.subjectdental bonding
dc.subjectdental curing light
dc.subjectdental surgery
dc.subjectdentin
dc.subjectdrug effect
dc.subjectevaluation
dc.subjecthuman
dc.subjectmaterials testing
dc.subjectmethodology
dc.subjectradiation exposure
dc.subjectsurface property
dc.subjecttensile strength
dc.subjecttime
dc.subjectAnalysis of Variance
dc.subjectCuring Lights, Dental
dc.subjectDental Bonding
dc.subjectDental Restoration Failure
dc.subjectDentin Desensitizing Agents
dc.subjectHumans
dc.subjectMaterials Testing
dc.subjectSurface Properties
dc.subjectTensile Strength
dc.subjectTime Factors
dc.subjectWater
dc.titleEffects of cement-curing mode and light-curing unit on the bond durability of ceramic cemented to dentin
dc.typeOtro


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