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Tipo de Documento: Artigo
Título : Fluoride release of six restorative materials in water and pH-cycling solutions
Autor : Garcez, Rosa Maria Viana de Bragança
Buzalaf, Marília Afonso Rabelo
Araújo, Paulo Amarante de
Fecha de publicación : 2007
Resumen: The fluoride release of restorative materials in deionized water has been the subject of many studies, but the behavior of these materials under conditions of acid challenge that simulates the oral cavity, needs to be further explored. Therefore, the aim of this study was to evaluate the fluoride release of restorative materials in two storage protocols: deionized water and pHcycling system (demineralizing solution-pH 4.3 and remineralizing solution-pH 7.0) for 15 days. Eight disks of each material (Vitremer™-positive control, Dyract AP, Ariston pHc, Definite®, Tetric®Ceram and Z100-negative control) were prepared (11.0 mm x 1.5 mm) and suspended individually in 4.0 mL of each solution, which were daily changed. Daily fluoride release was analyzed with an ion specific electrode (Orion 9609) by the direct method or after HMDS-facilitated diffusion, following 1, 7 and 15 days. The values obtained were converted into µgF/mm2 and the data analyzed by ANOVA and Tukey’s test (p< 0.05). The results showed that all materials released more fluoride in the pH-cycling system, except for Ariston pHc which maintained a constant release during the experiment. The highest fluoride release was presented by the positive control, Vitremer™ in pHcycling and by Ariston pHc, in deionized water. The negative control Z100 and the resins Definite® and Tetric®Ceram did not present statistically significant differences.
Palabras clave : Fluoride release
pH-cycling
Glass ionomer cements
Composite resins
Ciclagem de pH
ISSN : 1678-7757
1678-7765
Es parte de: Journal of Applied Oral Science
Idioma : eng
Institución / Editorial : Faculdade De Odontologia De Bauru - Universidade de São Paulo
Citación : GARCEZ, R. M. V. B.; BUZALAF, M. A. R.; ARAÚJO, P. A. Fluoride release of six restorative materials in water and pH-cycling solutions. Journal of Applied Oral Science, Bauru, v. 15, n. 5, p. 406-411, set./out. 2007. Disponível em: https://www.scielo.br/j/jaos/a/5PQQZ6TsDJYynyVLSTRDMyD/?format=pdf&lang=en. Acesso em: 28 nov. 2024.
License: Creative Commons Atribuição 4.0 Internacional (CC BY 4.0)
URI : https://ri.ufs.br/jspui/handle/riufs/20541
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