- of teeth with caries, defective restorations, chipped teeth and deep periodontal pockets (probing depth >4 mm). Also, the subjects who had undergone periodontal surgery within the previous six months, and those with orthodontic appliances or bridge work that would interfere with evaluation were excluded. Subjects with the presence of occlusal overload or occlusal adjustment recently made in the tooth to be studied were also excluded. Subjects who had undertaken treatment with any product that could influence the DH of the patient in the 30 days prior to baseline were excluded. Also, the subjects with allergy to the ingredients used in the study or exhibiting any gross oral pathology, eating disorders, chronic disease, pregnancy and lactation, acute myocardial infarction within the past six months, uncontrolled metabolic disease, major psychiatric disorder, heavy smoking or alcohol abuse, any systemic disease or any disease requiring repeated or regular analgesia, anti-inflammatory drugs, or antihistamines were excluded from the study.