Mineralization of Dentinal Lesions with Different Concentrations of Fluoride

Figure 1

Microhardness representative profiles for Groups A4 (0.0 ppm fluoride, week 4) and E4 (5.0 ppm fluoride, week 4). Note the low microhardness values measured within the lesion body without fluoride in comparison with the high values when fluoride is added to the remineralizing solution (5.0 ppm).