The aim of this study was to assess the effect of milk with 0, 2.5 or 5 ppm F- on progression and remineralization of caries-like root-surface lesions using a pH cycling model. The root-surface lesions were crea-ted utilizing a partially saturated lactic acid buffer at pH 4.6.
A significant reduction in lesion progression was found by PLM and MRG after treatment with either non-fluoridated or fluoridated milk when compared to the control group. Using quan-titative MRG, minerál change and distribution in the lesions were recorded.
A possible protective effect of fluoridated milk on root surface caries was supported by a reduction in the progression of the lesions and an increase in the minerál content within the lesion.