The stannous fluoride dentifrice provided significantly ( P < @ ) superior dentin hypersensitivity reduction compared to the negative control dentifrice at each time point and by both evaluation measures : superior mean relative Yeaple Probe ( tactile ) benefits were @ % after one use , @ % after @ days , and @ % after @ weeks ; and superior mean relative Schiff Air Index ( thermal ) benefits were @ % after a single use , @ % at Day @ , and @ % at Week @ .