pH-changes during intracoronal bleaching: An in vivo study

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBarcellos, Daphne Câmara
dc.creatorBorges, Alessandra Buhler
dc.creatorSilva, Regina Célia dos Santos Pinto
dc.creatorRibeiro, Luciana Maria
dc.creatorPucci, Cesar Rogério
dc.creatorTorres, Carlos Rocha Gomes
dc.date2014-05-27T11:25:30Z
dc.date2016-10-25T18:33:40Z
dc.date2014-05-27T11:25:30Z
dc.date2016-10-25T18:33:40Z
dc.date2011-03-01
dc.date.accessioned2017-04-06T01:49:41Z
dc.date.available2017-04-06T01:49:41Z
dc.identifierJournal of Contemporary Dental Practice, v. 12, n. 2, p. 109-113, 2011.
dc.identifier1526-3711
dc.identifierhttp://hdl.handle.net/11449/72327
dc.identifierhttp://acervodigital.unesp.br/handle/11449/72327
dc.identifier10.5005/jp-journals-10024-1018
dc.identifier2-s2.0-84856111078.pdf
dc.identifier2-s2.0-84856111078
dc.identifierhttp://dx.doi.org/10.5005/jp-journals-10024-1018
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/893206
dc.descriptionObjectives: This study aimed to measure pH changes during 14 days intracoronal bleaching with hydrogen peroxide/sodium perborate and carbamide peroxide/sodium perborate. Materials and methods: Twenty patients presenting endodontically treated central maxillary incisors with color alterations were divided in two groups (n = 10): Group CP + SP: 37% carbamide peroxide + sodium perborate paste; Group HP + SP: 30% hydrogen peroxide + sodium perborate paste. The pH values were measured using a digital microprocessor at different times: Baseline, 2, 7 and 14 days. Data were analyzed with two-way ANOVA followed by Tukey's test (α = 0.05). Results: ANOVA showed p < 0.00 which indicated significant difference between the groups. The mean values (± sd) and the results of the Tukey's test were: HP + SP/14 days-7.98 (±0.58)a; HP + SP/7 days-8.59 (±0.18)b; HP + SP/2 days-8.83 (±0.32)bc; HP + SP/Baseline-8.83 (±0.01)bc; CP + SP/Baseline-8.89 (±0.01)bc; CP + SP/14 days-9.11 (±0.58)cd; CP + SP/7 days-9.54 (±0.16)de; CP + SP/2 days-9.66 (±0.08) de. The group HP + SP resulted in significantly lower pH values compared with group CP + SP. Conclusion: It can be concluded that both associations showed alkaline pH values; however, there was significant reduction in the pH values of the 30% hydrogen peroxide associated with sodium perborate after 14 days. Clinical Significance: The association of hydrogen peroxide and carbamide peroxide with sodium perborate paste presented alkaline characteristics during the 14-day evaluated period. Thus, regarding pH changes, both associations can be considered safe as intracoronal bleaching agents.
dc.languageeng
dc.relationJournal of Contemporary Dental Practice
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBleaching agents
dc.subjectIntracoronal
dc.subjectPeroxides
dc.subjectpH
dc.subjectboric acid
dc.subjectdrug derivative
dc.subjecthydrogen peroxide
dc.subjectperborate sodium
dc.subjectperoxide
dc.subjecttooth bleaching agent
dc.subjecturea
dc.subjecturea peroxide
dc.subjectadolescent
dc.subjectadult
dc.subjectanalysis of variance
dc.subjectchemistry
dc.subjectclinical trial
dc.subjectcontrolled clinical trial
dc.subjectcontrolled study
dc.subjectdental procedure
dc.subjectdrug combination
dc.subjecthuman
dc.subjectmethodology
dc.subjectmiddle aged
dc.subjectnonparametric test
dc.subjecttooth pulp disease
dc.subjectAdolescent
dc.subjectAdult
dc.subjectAnalysis of Variance
dc.subjectBorates
dc.subjectDrug Combinations
dc.subjectHumans
dc.subjectHydrogen Peroxide
dc.subjectHydrogen-Ion Concentration
dc.subjectMiddle Aged
dc.subjectStatistics, Nonparametric
dc.subjectTooth Bleaching
dc.subjectTooth Bleaching Agents
dc.subjectTooth, Nonvital
dc.subjectUrea
dc.subjectYoung Adult
dc.titlepH-changes during intracoronal bleaching: An in vivo study
dc.typeOtro


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