| Effect of a Single Application of TiF(4) and NaF Varnishes and Solutions Combined with Nd:YAG Laser Irradiation on Enamel Erosion in Vitro. | |
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MedLine Citation:
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PMID: 21595551 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Abstract Objective: This in vitro study aimed to analyze the influence of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser irradiation on the efficacy of titanium tetrafluoride (TiF(4)) and sodium fluoride (NaF) varnishes and solutions to protect enamel against erosion. Background data: The effect of Nd:YAG laser irradiation on NaF and AmF was analyzed; however, there is no available data on the interaction between Nd:YAG laser irradiation and TiF(4). Methods: Bovine enamel specimens were pre-treated with NaF varnish, TiF(4) varnish, NaF solution, TiF(4) solution, placebo varnish, Nd:YAG (84.9 J/cm(2)), Nd:YAG prior to or through NaF varnish, Nd:YAG prior to or through TiF(4) varnish, Nd:YAG prior to or through NaF solution, Nd:YAG prior to or through TiF(4) solution, and Nd:YAG prior to or through placebo varnish. Controls remained untreated. Ten specimens in each group were then subjected to an erosive demineralization (Sprite Zero, 4 × 90 s/day) and remineralization (artificial saliva, between the erosive cycles) cycling for 5 days. Enamel loss was measured profilometrically (μm). Additionally, treated but non-eroded specimens were additionally analyzed by scanning electron microscope (SEM) (each group n = 2). The data were statistically analyzed by ANOVA and Tukey's post-hoc test (p < 0.05). Results: Only TiF(4) varnish (1.8 ± 0.6 μm), laser prior to TiF(4) varnish (1.7 ± 0.3 μm) and laser prior to TiF(4) solution (1.4 ± 0.3 μm) significantly reduced enamel erosion compared to the control (4.1 ± 0.6 μm). SEM pictures showed that specimens treated with TiF(4) varnish presented a surface coating. Conclusions: Nd:YAG laser irradiation was not effective against enamel erosion and it did not have any influence on the efficacy of F, except for TiF(4) solution. On the other hand, TiF(4) varnish protected against enamel erosion, without the influence of laser irradiation. |
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Authors:
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Ana Carolina Magalhães; Andrea Cardinalli Romanelli; Daniela Rios; Lívia Picchi Comar; Ricardo Scarparo Navarro; Larissa Tercilia Grizzo; Ana Cecília Corrêa Aranha; Marília Afonso Rabelo Buzalaf |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-19 |
Journal Detail:
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Title: Photomedicine and laser surgery Volume: - ISSN: 1557-8550 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101222340 Medline TA: Photomed Laser Surg Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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1 Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo , Bauru, São Paulo, Brazil . |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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