Ericson, Th., Pruitt, K. M., Arwin, H., Lundström, I. Ellipsometric studies of film formation on tooth enamel and hydrophilic silicon surfaces.Acta Odontol. Scand. 1982, 40, 197–201The uptake of salivary substances onto hydrophilic negatively charged surfaces of silicon or onto enamel surfaces was studiedin vitrowith ellipsometry. There was a rapid initial uptake of substances followed by a slow but continous uptake probably of other substances, which could be removed from saliva by absorption with aS. mutansserotypecstrain. the kinetics for the uptake onto enamel and silicon surfaces and the thicknesses of the layers were similar. the combination of ellipsometry and silicon surfaces is suggested as a model for obtaining increased information on dental pellicle formation.