Cariostatic effect of fluoride-containing restorative materials associated with fluoride gels on root dentin.

Unlabelled: Secondary caries is still the main cause of restoration replacement, especially on the root surface.

Objective: This in vitro study evaluated the cariostatic effects of fluoride-containing restorative materials associated with fluoride gels, on root dentin.

Materials And Methods: A randomized complete block design was used to test the effects of the restorative systems, fluoride regimes and the interactions among them at different distances from restoration margins.

Effectiveness and efficiency of chemomechanical carious dentin removal.

The aims of this in vitro study were both to determine the time necessary for removal of carious dentin (efficiency) and the Knoop Hardness Number (KHN) of the remaining dentin (effectiveness), using a chemomechanical method (Carisolv) or hand excavation. Thirty human molars were bisected through occlusal carious lesions into two equal halves. Each half was randomly excavated by hand in circular movements with a spoon excavator or using Carisolv gel according to the manufacturer's instructions.