Background: Periodontal disease is a heterogeneous group of disorders affecting the periodontium, the most common of which are gingivitis and chronic periodontitis. Substantial evidence indicates that susceptibility to periodontal disease varies among patients and is the function of both acquired and intrinsic risk factors. The process of predicting an individual’s probability of periodontal disease is called periodontal risk assessment.

Aim & Objectives: The purpose of this study is to identify the severity of periodontitis in case records of patients who visited the dental college using PRA.

Methodology: 100 samples were collected consisting of patients with periodontitis. Data is collected from periodontal case sheets and periodontal charting and added into the PRA tool to gain the result. Results obtained are compiled and correlation is made between periodontal risks and demographic data of the patients.

Results: In this study, from the overall results, patients with medium risk is 63% and high risk is 37%. Based on age group, the number of people with the highest number of medium risk are in the age group of 31-40 and 41-50 (77%) and high risk in the age group of 61-70 (75%). Based on gender, male had the higher risk of the disease compared to females (40%). Based on ethnicity, Indians showed a higher risk of the disease compared to the other communities (59% medium risk and 41% high risk).

Conclusions: From the data analysed, periodontal risk assessment does not depend on one factor and depends on multiple factors, which includes BOP%, PPD ≥5, number of tooth loss, percentage of BL/Age, Systemic/ General disease and environmental factors.