dc.contributor | Universidade Estadual Paulista (UNESP) | |
dc.creator | Berger, Sandrine Bittencourt | |
dc.creator | Pavan, Sabrina | |
dc.creator | Pimenta Vidal, Cristina de Mattos | |
dc.creator | Santos, Paulo Henrique dos | |
dc.creator | Giannini, Marcelo | |
dc.creator | Bedran-Russo, Ana Karina | |
dc.date | 2013-09-30T18:29:51Z | |
dc.date | 2014-05-20T13:43:35Z | |
dc.date | 2016-10-25T16:58:07Z | |
dc.date | 2013-09-30T18:29:51Z | |
dc.date | 2014-05-20T13:43:35Z | |
dc.date | 2016-10-25T16:58:07Z | |
dc.date | 2012-01-01 | |
dc.date.accessioned | 2017-04-05T20:47:20Z | |
dc.date.available | 2017-04-05T20:47:20Z | |
dc.identifier | Acta Odontologica Scandinavica. London: Informa Healthcare, v. 70, n. 1, p. 56-60, 2012. | |
dc.identifier | 0001-6357 | |
dc.identifier | http://hdl.handle.net/11449/15211 | |
dc.identifier | http://acervodigital.unesp.br/handle/11449/15211 | |
dc.identifier | 10.3109/00016357.2011.575176 | |
dc.identifier | WOS:000298328300009 | |
dc.identifier | http://dx.doi.org/10.3109/00016357.2011.575176 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/862251 | |
dc.description | Objective. The purpose of this study was to evaluate the effect of the bleaching agents on the elastic modulus of bovine demineralized dentin matrix (EMDM). Materials and methods. Eighty-five slices were obtained from 17 bovine teeth. The slices were divided randomly into five experimental groups (n = 17): unbleached control group (CG), 4% hydrogen peroxide (HP4), 4% hydrogen peroxide + 0.05% Ca (HP4 + Ca), 7.5% hydrogen peroxide + ACP (HP7.5) and 10% carbamide peroxide (CP10). The HP4, HP4 + Ca and CP10 groups were treated with the bleaching agents for 8 h/day (14 days), while the samples of HP7.5 group were exposed to bleaching agent for 30 min twice a day (14 days). The CGwas kept in 100% humidity. After bleaching treatments, the enamel of the samples was removed and 85 dentin beams (0.5 x 1.7 x 7.0 mm) were prepared. Afterwards, the beams were immersed in 10% phosphoric acid solution (5 h) and rinsed with water (10 min). The beams were tested after 24 h, 7 and 14 days of storage in distilled water, using three-point bend method. Data were statistically analyzed using ANOVA and Fisher's test. Results. All bleaching treatments reduced the EMDM. After 14 days post-bleaching, the EMDM increased for HP4 and HP4+Ca groups. Conclusions. The use of bleaching agents promoted a decrease in EMDM, which indicates that the bleaching treatment interacts with the dentin organic matrix. The EMDM measurement for the specimens of the 7.5% hydrogen peroxide group that were immersed in water at 14 days post-bleaching did not recover the EMDM values when compared to the control group. | |
dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.language | eng | |
dc.publisher | Informa Healthcare | |
dc.relation | Acta Odontologica Scandinavica | |
dc.rights | info:eu-repo/semantics/closedAccess | |
dc.subject | elastic modulus | |
dc.subject | dentin | |
dc.subject | whitening | |
dc.title | Changes in the stiffness of demineralized dentin following application of tooth whitening agents | |
dc.type | Otro | |