title: Fluoride ion diffusion from polyalkenoate (glass-ionomer) cements.
abstract: Long-term elution of fluoride ions has been studied for one silicate and six glass-ionomer cements over a period of some two and-a-half years. Because equilibrium was not reached, classical diffusion theory could not be applied to the process. It was postulated that two elution processes were taking place, one short-term and rapid, the other more gradual and prolonged. It was possible only to estimate the maximum value for the diffusion coefficients.
authors.affiliation: Dental School of the London Hospital Medical College, UK.
authors.forename: W M
authors.initials: WM
authors.lastname: Tay
authors.forename: M
authors.initials: M
authors.lastname: Braden
mesh_terms: D003738:Dental Cements; D004058:Diffusion; D005459:Fluorides; D005899:Glass Ionomer Cements; D007700:Kinetics; D008433:Mathematics
chemical_list: D003738:Dental Cements; D005899:Glass Ionomer Cements; D005459:Fluorides