| Literature DB >> 9645557 |
R M Verbeeck1, E A De Maeyer, L A Marks, R J De Moor, A M De Witte, L M Trimpeneers.
Abstract
The fluoride release of conventional and resin-modified glass-ionomers is reviewed and compared to that of fluoride-releasing (polyacid-modified) composite resins. Each formulation displays a typical fluoride release profile. The cumulative amount of fluoride released is described by [F]c = [F](I)t/(t + t1/2) + beta square root t for glass ionomers whether resin-modified or not, whereas for composite resins this quantity is given by [F]c = [F](I)t/(t + t1/2) + alpha t. Both equations indicate that two kinetic processes are responsible for the fluoride release profiles. The kinetic parameters [F](I), t1/2, beta and alpha depend on the formulation. On the basis of the exchange characteristics for fluoride, an attempt is made to explain the mechanisms responsible for these fluoride release processes.Entities:
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Year: 1998 PMID: 9645557 DOI: 10.1016/s0142-9612(97)00131-2
Source DB: PubMed Journal: Biomaterials ISSN: 0142-9612 Impact factor: 12.479