Results After 6 months, significantly more lesions in the 5000 ppm group had reversed (see Table 1). Non-cavitated lesions were more likely to harden. ECM scores in the 5000 ppm group tended ...

The study Effect of a third application of toothpaste (1450 and 5000 ppm F), including a "massage" method, on fluoride retention and pH drop in plaque was published in Acta Odontologica Scandinavia.