Process and composition for the remineralization and prevention of demineralization of animal teeth including humans

Process for remineralizing demineralized dental enamel of the tooth with a precipitate bound to the tooth structure, said process comprising the steps of applying first ions to the tooth surface so that said first ions diffuse through the tooth surface into demineralized dental enamel and thereafter applying second ions to the tooth surface into demineralized dental enamel and form a precipitate with previously applied first ions in said dental enamel, said first ions comprising one of either calcium ions or phosphate ions, said second ions comprising the other of either calcium ions or phosphate ions, said calcium ions being applied in the form of a solution comprising from about 0.005 to about 3.5% of calcium ion from a water-soluble calcium salt which is compatible in the oral environment, said phosphate ions being applied in the form of a solution comprising from about 0.005 to about 4% of phosphate ions a water-soluble phosphate salt which is compatible in the oral environment, each of the applications being carried out for a time period consistent with normal dental care habits.