Subjects selected will undergo thorough clinical examination, followed by oral prophylaxis, oral hygiene instructions and dietary counseling. After the teeth isolation with cotton rolls, changes in the dentin sensitivity to tactile (dental explorer), thermal stimuli (drops of melted ice) and air stimuli (blast from dental syringe) will be evaluated. Following application of the stimuli, responses will be evaluated and assessed by the Visual Analog Scale (VAS). The survey form will be completed by the examiner to have a baseline prior to paste application in the first visit. The survey contains five questions, rated on a 10-point scale, assessing: