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Shear bond strength of orthodontic metal brackets to aged composite using three primers

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Shear bond strength of orthodontic metal brackets to aged composite using three primers

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dc.contributor.author Tayebi, Ali es
dc.contributor.author Fallahzadeh, Farnoosh es
dc.contributor.author Morsaghian, Marzieh es
dc.date.accessioned 2017-09-28T07:58:41Z
dc.date.available 2017-09-28T07:58:41Z
dc.date.issued 2017 es
dc.identifier.citation Tayebi, Ali ; Fallahzadeh, Farnoosh ; Morsaghian, Marzieh. Shear bond strength of orthodontic metal brackets to aged composite using three primers. En: Journal of Clinical and Experimental Dentistry, 9 6 2017: 749-755 es
dc.identifier.uri http://hdl.handle.net/10550/61217
dc.description.abstract This study aimed to assess the effect of surface preparation with sandblasting and diamond bur along with the use of three primers on shear bond strength (SBS) of metal brackets to aged composite. In this in vitro, experimental study, 60 Filtek Z250 composite discs were fabricated (10×2mm), immersed in distilled water for 24 hours and subjected to 5000 thermal cycles. They were randomly divided into two groups (n=30) of sandblasting with aluminum oxide particles for 10 seconds and surface roughening with bur. Each group was randomly divided into three subgroups (n=10) for use of Transbond XT, Assure Plus and Composite Primer. Metal brackets were bonded and the samples were stored in distilled water for 24 hours followed by 2000 thermal cycles. The SBS of brackets was measured and the adhesive remnant index (ARI) score was calculated. The data were analyzed by one-way ANOVA, t-test and Chi square test. The difference in the mean SBS was not significant among the six subgroups. All combinations of primers and surface preparation methods provided adequately high SBS between brackets and aged composite surfaces. Considering the ARI scores, surface roughening by bur is superior to sandblasting. es
dc.title Shear bond strength of orthodontic metal brackets to aged composite using three primers es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.53731 es
dc.type.hasVersion VoR es_ES

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