Effect of pretreatment with an Er:YAG laser and fluoride on the prevention of dental enamel erosion
Autor: | Linda Wang, César Bataglion, Regina Guenka Palma-Dibb, Danielle Torres Azevedo, Juliana dos Reis Derceli, Juliana Jendiroba Faraoni-Romano |
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Rok vydání: | 2013 |
Předmět: |
Dental Stress Analysis
Materials science Varnish Dentistry Lasers Solid-State Dermatology law.invention Fluorides chemistry.chemical_compound law Animals Humans Tooth Erosion Dental Enamel Tooth Demineralization Enamel paint business.industry Dental enamel Laser Demineralization chemistry Tooth wear visual_art visual_art.visual_art_medium Cattle Surgery business Fluoride Er:YAG laser FLUORETO |
Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
ISSN: | 1435-604X 0268-8921 |
DOI: | 10.1007/s10103-013-1463-6 |
Popis: | The aim of this study was to evaluate the effect of the Er:YAG laser and its association with fluoride (1.23% acidulate phosphate fluoride gel) on the prevention of enamel erosion. Sixty specimens were obtained from bovine enamel (4 × 4 mm), which were ground flat, polished, and randomly divided into five groups according to the preventive treatments: control-fluoride application; L--Er:YAG laser; L+F--laser + fluoride; F+L--fluoride + laser; L/F--laser/fluoride simultaneously. Half of the enamel surface was covered with nail varnish (control area), and the other half was pretreated with one of the preventive strategies to subsequently be submitted to erosive challenge. When the laser was applied, it was irradiated for 10 s with a focal length of 4 mm and 60 mJ/2 Hz. Fluoride gel was applied for 4 min. Each specimen was individually exposed to regular Coca-Cola® for 1 min, four times/day, for 5 days. Wear analysis was performed with a profilometer, and demineralization was assessed with an optical microscope. Data were analyzed using the Kruskal-Wallis test (wear)/Dunn test and ANOVA/Fisher's exact tests. The group L/F was similar to control group. The other groups showed higher wear, which did not present differences among them. In the demineralization assessment, the groups F+L and L/F showed lower demineralization in relation to the other groups. It can be concluded that none preventive method was able to inhibit dental wear. The treatments L/F and F+L showed lower enamel demineralization. |
Databáze: | OpenAIRE |
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