 MATERIAL AND METHODS: A total of 60 subjects with probing depth PD 5mm and clinical attachment level CAL 3mm were randomly divided into two groups. Group 1 was treated with SRP placebo gel local drug delivery LDD and Group 2 with SRP AV gel LDD. Clinical parameters including full mouth plaque index PI, modified sulcus bleeding index mSBI, probing depth PD and clinical attachment level CAL were recorded first at baseline and then at intervals of 3 months and 6 months. 