The interaction of polyacid-modified composite resins ("compomers") with aqueous fluoride solutions
OBJECTIVE : The aim of this study was to investigate how the release of fluoride from two compomers and a fluoridated composite resin was affected by exposure to KF solution. MATERIAL AND METHODS: Two compomers (Dyract AP and Compoglass F) and one fluoridated composite (Wave) were prepared as discs...
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| Format: | Article |
| Language: | English |
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University of São Paulo
2009-06-01
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| Series: | Journal of Applied Oral Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000300016 |
| _version_ | 1818930162018811904 |
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| author | Reza Rohani John W. Nicholson |
| author_facet | Reza Rohani John W. Nicholson |
| author_sort | Reza Rohani |
| collection | DOAJ |
| description | OBJECTIVE : The aim of this study was to investigate how the release of fluoride from two compomers and a fluoridated composite resin was affected by exposure to KF solution. MATERIAL AND METHODS: Two compomers (Dyract AP and Compoglass F) and one fluoridated composite (Wave) were prepared as discs (6 mm diameter and 2 mm thick), curing with a standard dental lamp. They were then stored in either water or 0.5% KF for 1 week, followed by placement in water for periods of 1 week up to 5 weeks total. Fluoride was determined with and without TISAB (to allow complexed and decomplexed fluoride to be determined), and other ion release (Na, Ca, Al, Si, P) was determined by ICP-OES. RESULTS: Specimens were found not to take up fluoride from 100 ppm KF solution in 24 h, but to release additional fluoride when stored for up to five weeks. Compomers released more fluoride cumulatively following exposure to KF solution (p<0.001), all of which was decomplexed, though initial (1 week) values were not statistically significant for Dyract AP. Other ions showed no variations in release over 1 week, regardless of whether the specimens were exposed to KF. Unlike the compomers, Wave showed no change in fluoride release as a result of exposure to KF. CONCLUSIONS: Compomers are affected by KF solution, and release more fluoride (but not other ions) after exposure than if stored in water. |
| first_indexed | 2024-12-20T03:56:18Z |
| format | Article |
| id | doaj.art-a28d056b9a8841098c5f751c12a29c1d |
| institution | Directory Open Access Journal |
| issn | 1678-7757 1678-7765 |
| language | English |
| last_indexed | 2024-12-20T03:56:18Z |
| publishDate | 2009-06-01 |
| publisher | University of São Paulo |
| record_format | Article |
| series | Journal of Applied Oral Science |
| spelling | doaj.art-a28d056b9a8841098c5f751c12a29c1d2022-12-21T19:54:19ZengUniversity of São PauloJournal of Applied Oral Science1678-77571678-77652009-06-0117321621910.1590/S1678-77572009000300016The interaction of polyacid-modified composite resins ("compomers") with aqueous fluoride solutionsReza RohaniJohn W. NicholsonOBJECTIVE : The aim of this study was to investigate how the release of fluoride from two compomers and a fluoridated composite resin was affected by exposure to KF solution. MATERIAL AND METHODS: Two compomers (Dyract AP and Compoglass F) and one fluoridated composite (Wave) were prepared as discs (6 mm diameter and 2 mm thick), curing with a standard dental lamp. They were then stored in either water or 0.5% KF for 1 week, followed by placement in water for periods of 1 week up to 5 weeks total. Fluoride was determined with and without TISAB (to allow complexed and decomplexed fluoride to be determined), and other ion release (Na, Ca, Al, Si, P) was determined by ICP-OES. RESULTS: Specimens were found not to take up fluoride from 100 ppm KF solution in 24 h, but to release additional fluoride when stored for up to five weeks. Compomers released more fluoride cumulatively following exposure to KF solution (p<0.001), all of which was decomplexed, though initial (1 week) values were not statistically significant for Dyract AP. Other ions showed no variations in release over 1 week, regardless of whether the specimens were exposed to KF. Unlike the compomers, Wave showed no change in fluoride release as a result of exposure to KF. CONCLUSIONS: Compomers are affected by KF solution, and release more fluoride (but not other ions) after exposure than if stored in water.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000300016Composite resinsFluoride |
| spellingShingle | Reza Rohani John W. Nicholson The interaction of polyacid-modified composite resins ("compomers") with aqueous fluoride solutions Journal of Applied Oral Science Composite resins Fluoride |
| title | The interaction of polyacid-modified composite resins ("compomers") with aqueous fluoride solutions |
| title_full | The interaction of polyacid-modified composite resins ("compomers") with aqueous fluoride solutions |
| title_fullStr | The interaction of polyacid-modified composite resins ("compomers") with aqueous fluoride solutions |
| title_full_unstemmed | The interaction of polyacid-modified composite resins ("compomers") with aqueous fluoride solutions |
| title_short | The interaction of polyacid-modified composite resins ("compomers") with aqueous fluoride solutions |
| title_sort | interaction of polyacid modified composite resins compomers with aqueous fluoride solutions |
| topic | Composite resins Fluoride |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572009000300016 |
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