Aim: The aim of this study was to clinically evaluate the use of biodegradable chlorhexidine chip when used as an adjunct to scaling and root planing (SRP) in the treatment of moderate to severe periodontitis patients. The study also intended to compare the combined therapy (SRP and Chlorhexidine chip) with chlorhexidine chip alone in individuals with periodontitis. Fifteen patients with three sitesMaterials and Methods: having a probing depth of 5-8mm were considered for the study. Sites were numbered 1, 2, 3 randomly. The clinical parameters assessed were the Plaque Index (PI), gingival index (GI), Bleeding on probing (BOP), Clinical attachment level (CAL) and Probing pocket depth (PPD). Following baseline evaluation, on two sites scaling and root planing (SRP) was performed, no treatment was carried out in the third site. Chlorhexidine chips were placed on one site with SRP and another without SRP. A periodontal pack was placed on the site to prevent dislodgement of the CHX chip. Clinical parameters were recorded at baseline, one month and three months. Duration of the study was for three months. All three groupsResults: presented with an improvement in the clinical parameters compared to baseline. There was no statistically signicant difference between the SRP and SRP + CHIP group in all parameters. There was a signicant difference when these two groups were compared to the chip alone group. The mean reductions in PPD were 2.9mm (SRP group),2.5(SRP+CHIP group), 0.9 (chip alone group) The mean gain in CAL were 2.9mm (SRP group), 2.7 (SRP+CHIP group), 0.6 (chip alone group). Reduction in bleeding on probing were signicant for the SRP and SRP +CHIP group but not for the chip alone group. The CHX chip did not provide any clinical benet beyond that achieved with conventional scaling and rootplaningConclusion: after a three month period.