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Desensitizing effect of a potassium chloride dentifrice.

Sensodyne F is a potassium chloride (KCl) and sodium monofluorphosphate (MFP) containing dentifrice currently marketed in the United Kingdom and Germany was compared to a KCl only dentifrice and to a placebo dentifrice for effectiveness in alleviating dentin hypersensitivity. This 3-cell, randomized, double-blind, parallel clinical study utilized 62 subjects for an 8-week duration of product use. The degree of hypersensitivity of the affected teeth was assessed by tactile stimulation, cold air stimulation and overall subjective patient response. The results from these three methods of assessment indicated that a KCl containing dentifrice either alone or in combination with sodium MFP were significantly more effective than the placebo dentifrice in reducing dentin hypersensitivity. The therapeutic response to the KCl dentifrices as measured by air sensitivity and tactile sensitivity was statistically significant when compared to the placebo dentifrice within 4 weeks of use. Significant improvement was seen for all parameters at the conclusion of the 8-week clinical study period. Plaque reduction was significantly reduced at 8 weeks. The results indicate that KCl is an efficacious molecule in reducing dentin hypersensitivity when used either alone or in combination with sodium MFP as measured by improved overall patient comfort.