Spectrophotometric assessment of the effectiveness of Opalescence PF 10%: a 14-month clinical study

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dc.contributor.authorGrobler, Sias Renier
dc.contributor.authorHayward, Roche
dc.contributor.authorWiese, S
dc.contributor.authorMoola, Mohamad H.
dc.contributor.authorvan Wyk Kotze, Theuns
dc.date.accessioned2013-03-08T09:50:59Z
dc.date.available2013-03-08T09:50:59Z
dc.date.issued2010
dc.description.abstractObjectives: To evaluate the effectiveness of Opalescence PF 10% just after treatment, at 6-month follow-up and at a 14-month follow-up period. Methods: Opalescence PF 10% was applied nightly for 14 days. The color of teeth 11 and 21 of 17 subjects were measured with a spectrophotometer (L*; a*; b*) before treatment, just after treatment (14 days), after 6 months and after 14 months. Subjects were instructed to take note of any tooth sensitivity. Results: For all three components (L*, a* and b*) statistical significant differences (p < 0.05) in the values between base-line, after treatment (14 days later), after 6 months and after 14 months were found (Wilcoxon Signed Rank Sum Test). The decrease in L* was about 20% after 6 months and about 50% after 14 months. The a* value decreased approximately 14% after 6 months but was worse after 14 months than at the beginning. The b* value decreased the least with about 9% after 6 months and about 8% after 14 months. The decrease in View the MathML source was ∼20% after 14 months. Less than 20% of the subjects experienced mild tooth sensitivity just after treatment. Conclusion: Significantly whiter teeth were found after treatment as well as after a 6-month follow-up period. The whiteness/brightness (L*) decreased with ∼50% after 14 months and the a* value with ∼50% after 7 months, while the yellowness (b* value) remained even after 14 months. Clinical implications: The product is an effective tooth whitener resulting in only low tooth sensitivity. Re-bleaching could be done at about 14 months.en_US
dc.description.accreditationWeb of Scienceen_US
dc.identifier.citationGrobler, S.R. , et al. (2010). Spectrophotometric assessment of the effectiveness of Opalescence PF 10%: a 14-month clinical study. Journal of Dentistry, 38(2): 113-117en_US
dc.identifier.urihttp://hdl.handle.net/10566/556
dc.language.isoenen_US
dc.privacy.showsubmitterfalse
dc.publisherElsevieren_US
dc.rightsThis is the author postprint version of an article by Elsevier. The file may be freely used, provided that acknowledgement of the source is given.
dc.source.urihttp://dx.doi.org/10.1016/j.jdent.2009.09.009
dc.status.ispeerreviewedtrue
dc.subjectClinical studyen_US
dc.subjectTooth whiteneren_US
dc.subjectOpalescence PF 10%en_US
dc.subjecten_US
dc.titleSpectrophotometric assessment of the effectiveness of Opalescence PF 10%: a 14-month clinical studyen_US
dc.typeArticleen_US

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