Objectives: With increasing numbers of various periodontal problems one of most frequently encountered is chronic periodontitis. Although the benchmark for treatment is always scaling and root planing, non-invasive adjuncts to SRP in the form of various irrigations have shown promising results. Ozone, one of potent oxygen scavenger, is used in this study as an adjunct to non-surgical periodontal therapy. Materials and Methods: A total of 60 patients with 186 sites were selected with PPD >5 mm, PI >2, GI >2. Scaling and root planing was performed meticulously and on the same day ozonated olive oil irrigation was performed and the healing of gingiva was checked by clinical parameters after 1 month. Results: Statistically significant reduction in PPD, plaque index has been seen at the end of period of 1 month. Conclusion: Use of ozonated olive oil irrigation as an adjunct to scaling and root planning showed good results in reduction of clinical parameters, in patients with chronic periodontitis.