In Vitro Assessment Of The Effectiveness Of Whitening Dentifrices For The Removal Of Extrinsic Tooth Stains

dc.creatorLeite Lima D.A.N.
dc.creatorSilva A.L.F.
dc.creatorAguiar F.H.B.
dc.creatorLiporoni P.C.S.
dc.creatorMunin E.
dc.creatorAmbrosano G.M.B.
dc.creatorLovadino J.R.
dc.date2008
dc.date2015-06-30T19:16:32Z
dc.date2015-11-26T14:41:10Z
dc.date2015-06-30T19:16:32Z
dc.date2015-11-26T14:41:10Z
dc.date.accessioned2018-03-28T21:47:56Z
dc.date.available2018-03-28T21:47:56Z
dc.identifier
dc.identifierBrazilian Oral Research. , v. 22, n. 2, p. 106 - 111, 2008.
dc.identifier18068324
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-48249127998&partnerID=40&md5=70b48b276ec98f20bf2f5d9761ed9676
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/105537
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/105537
dc.identifier2-s2.0-48249127998
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1250732
dc.descriptionThis in vitro study evaluated the effectiveness of whitening dentifrices for the removal of extrinsic tooth stains. Twenty dental blocks (4 × 4 mm), including enamel and dentine, removed from freshly extracted bovine incisors, were randomly divided into 4 groups: G1 - distilled water, G2 - Colgate, G3 - Crest Extra Whitening And G4 - Rapid White. In all specimens, the dentin was covered with colorless nail polish, and the enamel was left exposed. Next, the specimens were immersed in a solution of black tea, which was changed every 24 h, for a period of 6 days. After this period, a photo-reflectance reading was taken (Time 1) with a spectrometer. The stained specimens were then submitted to linear brushing movements (5,000 cycles) using brushes (Oral B-Soft) coupled to an automatic toothbrushing machine, under a static axial load of 200 g and with a speed of 4 movements/second, at 37°C, with the dentifrice or water being injected every 60 s. When toothbrushing ended, a second photo-reflectance reading was taken (Time 2). The results were submitted to two-criteria analysis of variance (ANOVA) and to the Tukey test (α = 0.05). When the two times for a same group were compared, Time 2 presented the highest reflectance values with statistical difference only for G3 and G4. Among the dentifrices tested, only the Rapid White group differed from the control group, presenting the highest reflectance values. Only the whitening dentifrice Rapid White was effective for the removal of extrinsic stains.
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dc.description2
dc.description106
dc.description111
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dc.languageen
dc.publisher
dc.relationBrazilian Oral Research
dc.rightsaberto
dc.sourceScopus
dc.titleIn Vitro Assessment Of The Effectiveness Of Whitening Dentifrices For The Removal Of Extrinsic Tooth Stains
dc.typeArtículos de revistas


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