Clinical Effectiveness of Episodic Use of Bioactive Silica Based Versus in Management of Dentin Hypersensitivity (A 6m Randomized Clinical Trial)

subjects assigned to episodic treatment will use the assigned toothpaste with the same previous instructions for two 8-week treatment periods, followed by an 8-week phase in which they will use the conventional fluoride dentifrice (Signal Complete 8 Original, Unilever, Egypt), which has no documented desensitizing efficacy

The patients will be instructed to use 1 inch amount of the assigned desensitizing toothpaste and soft bristle toothbrushes with the same brushing technique they will be taught in the intervention visit for 2 minutes twice a day (morning and last thing at night ) without further rinsing, only spitting of the excess material every day along the whole study period for the continuous treatment group.