Abstract: C- reactive protein [CRP] is an acute phase protein observed in increased quantities in plasma during the infections and presence of any inflammation, which could be a further possible risk factor in systemic inflammatory diseases such as arthritis, diabetes mellitus, and obesity. CRP molecules help as a biological marker for the determination of the inflammatory process when obtained from the gingival crevicular fluid and there is association between periodontitis and CRP levels. These levels are found to be reduced after the non-surgical and surgical periodontal treatment. Therefore, the levels of CRP would play a major role in determination of the inflammatory process.