[The effect of rare earth metal-containing toothpastes on dental enamel solubility in vitro].

The effect of different REE containing toothpastes has been studied on human dental enamel, in an experimental model, using diluted suspensions of toothpastes. The grade of remineralization has been characterised by the amount of dissolved phosphorus from the enamel samples. All the investigated-, REE containing toothpastes decreased the acid-solubility of dental enamel, the best results were found in the group of samarium-containing toothpastes.