A clinical investigation of the efficacy of a dentifrice containing 1.5% arginine and 1450 ppm fluoride, as sodium monofluorophosphate in a calcium base, on primary root caries.

Products under investigation Test dentifrice: 1.5% arginine and 1450 ppm fluoride as sodium monofluorophosphate (MFP) in a calcium base (Colgate-Palmolive Company, New York, NY) Positive control dentifrice: 1450 ppm fluoride as sodium fluoride in a silica base (Colgate-Palmolive Company, New York, NY) Negative control dentifrice: Non-fluoride toothpaste in a calcium base (Colgate-Palmolive Company, New York, NY)