Question n=21 Before Mean After Mean Overall level of dryness? 2.64 1.47 Day time level of dryness? 2.23 1.35 Dry mouth of at night/awakening? 1.58 0.41 Need of liquid to aid speaking? 2.05 1.12 Need of liquid to aid swallowing? 1.05 0.24

Table1: Assessment of Xerostomia Questionnaire.