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dc.typeArtigo de periódicopt_BR
dc.titleIn Vitro Effects Of Hydrogen Peroxide Combined With Different Activators For The In-office Bleaching Technique On Enamel.pt_BR
dc.contributor.authorLima, Débora Alves Nunes Leitept_BR
dc.contributor.authorAguiar, Flavio Henrique Baggiopt_BR
dc.contributor.authorPini, Núbia Inocencya Pavesipt_BR
dc.contributor.authorSoares, Luis Eduardo Silvapt_BR
dc.contributor.authorMartin, Airton Abrahãopt_BR
dc.contributor.authorLiporoni, Priscila Christiane Suzypt_BR
dc.contributor.authorAmbrosano, Glaucia Maria Bovipt_BR
dc.contributor.authorLovadino, José Robertopt_BR
unicamp.authorDébora Alves Nunes Leite Lima, Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas - FOP/Unicamp , Piracicaba, SP , Brazil.pt_BR Henrique Baggio Aguiar,ptúbia Inocencya Pavesi Pini,pt Eduardo Silva Soares,pt Abrahão Martin,pt Christiane Suzy Liporoni,pt Maria Bovi Ambrosano,pté Roberto Lovadino,pt
dc.subjectHydrogen Peroxidept_BR
dc.description.abstractAbstract Objective. The aim of this study was to evaluate the alteration of human enamel bleached with high concentrations of hydrogen peroxide associated with different activators. Materials and methods. Fifty enamel/dentin blocks (4 × 4 mm) were obtained from human third molars and randomized divided according to the bleaching procedure (n = 10): G1 = 35% hydrogen peroxide (HP - Whiteness HP Maxx); G2 = HP + Halogen lamp (HL); G3 = HP + 7% sodium bicarbonate (SB); G4 = HP + 20% sodium hydroxide (SH); and G5 = 38% hydrogen peroxide (OXB - Opalescence Xtra Boost). The bleaching treatments were performed in three sessions with a 7-day interval between them. The enamel content, before (baseline) and after bleaching, was determined using an FT-Raman spectrometer and was based on the concentration of phosphate, carbonate, and organic matrix. Statistical analysis was performed using two-way ANOVA for repeated measures and Tukey's test. Results. The results showed no significant differences between time of analysis (p = 0.5175) for most treatments and peak areas analyzed; and among bleaching treatments (p = 0.4184). The comparisons during and after bleaching revealed a significant difference in the HP group for the peak areas of carbonate and organic matrix, and for the organic matrix in OXB and HP+SH groups. Tukey's analysis determined that the difference, peak areas, and the interaction among treatment, time and peak was statistically significant (p < 0.05). Conclusion. The association of activators with hydrogen peroxide was effective in the alteration of enamel, mainly with regards to the organic matrix.en
dc.relation.ispartofActa Odontologica Scandinavicapt_BR
dc.relation.ispartofabbreviationActa Odontol. Scand.pt_BR
dc.identifier.citationActa Odontologica Scandinavica. , p. 1-6, 2015-Jan.pt_BR
dc.description.provenanceMade available in DSpace on 2015-11-27T13:45:59Z (GMT). No. of bitstreams: 1 pmed_25626117.pdf: 152488 bytes, checksum: 20f083828d01ad385b4cf13af1f0c406 (MD5) Previous issue date: 2015en
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