Inclusion Criteria:  Presence of a minimum of four hypersensitive teeth in each patient. Patients with teeth recorded a discomfort score of two or more to tactile, cold and air stimulation. Teeth having hypersensitivity only on the facial aspect. Patients' willingness to participate in the study  Exclusion Criteria:  Patients with any medical or dental condition that could impact the study results during its expected length. Patients with a history of drug addictions and use of potent analgesic and/ or anti-inflammatory drugs. Patients who refused to give their consents. Patients with any extensive or unsatisfactory restorations, prosthesis or orthodontic appliances which involve the cervical areas