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FLUORIDE RELEASE OF SIX RESTORATIVE MATERIALS IN WATER AND pH-CYCLING SOLUTIONS
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 re...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Faculdade de Odontologia de Bauru da Universidade de São Paulo
2007
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327260/ https://www.ncbi.nlm.nih.gov/pubmed/19089169 http://dx.doi.org/10.1590/S1678-77572007000500006 |
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author | Garcez, Rosa Maria Viana de Bragança Buzalaf, Marília Afonso Rabelo de Araújo, Paulo Amarante |
author_facet | Garcez, Rosa Maria Viana de Bragança Buzalaf, Marília Afonso Rabelo de Araújo, Paulo Amarante |
author_sort | Garcez, Rosa Maria Viana de Bragança |
collection | PubMed |
description | 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 pH- cycling 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/mm(2) 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 pH- cycling and by Ariston pHc, in deionized water. The negative control Z100 and the resins Definite® and Tetric®Ceram did not present statistically significant differences. |
format | Online Article Text |
id | pubmed-4327260 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2007 |
publisher | Faculdade de Odontologia de Bauru da Universidade de São Paulo |
record_format | MEDLINE/PubMed |
spelling | pubmed-43272602015-04-24 FLUORIDE RELEASE OF SIX RESTORATIVE MATERIALS IN WATER AND pH-CYCLING SOLUTIONS Garcez, Rosa Maria Viana de Bragança Buzalaf, Marília Afonso Rabelo de Araújo, Paulo Amarante J Appl Oral Sci Original Article 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 pH- cycling 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/mm(2) 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 pH- cycling and by Ariston pHc, in deionized water. The negative control Z100 and the resins Definite® and Tetric®Ceram did not present statistically significant differences. Faculdade de Odontologia de Bauru da Universidade de São Paulo 2007-10 /pmc/articles/PMC4327260/ /pubmed/19089169 http://dx.doi.org/10.1590/S1678-77572007000500006 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Garcez, Rosa Maria Viana de Bragança Buzalaf, Marília Afonso Rabelo de Araújo, Paulo Amarante FLUORIDE RELEASE OF SIX RESTORATIVE MATERIALS IN WATER AND pH-CYCLING SOLUTIONS |
title | FLUORIDE RELEASE OF SIX RESTORATIVE MATERIALS IN WATER AND pH-CYCLING SOLUTIONS |
title_full | FLUORIDE RELEASE OF SIX RESTORATIVE MATERIALS IN WATER AND pH-CYCLING SOLUTIONS |
title_fullStr | FLUORIDE RELEASE OF SIX RESTORATIVE MATERIALS IN WATER AND pH-CYCLING SOLUTIONS |
title_full_unstemmed | FLUORIDE RELEASE OF SIX RESTORATIVE MATERIALS IN WATER AND pH-CYCLING SOLUTIONS |
title_short | FLUORIDE RELEASE OF SIX RESTORATIVE MATERIALS IN WATER AND pH-CYCLING SOLUTIONS |
title_sort | fluoride release of six restorative materials in water and ph-cycling solutions |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327260/ https://www.ncbi.nlm.nih.gov/pubmed/19089169 http://dx.doi.org/10.1590/S1678-77572007000500006 |
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