OBJECTIVE: To estimate the prevalence of inflammatory periodontal disease (IPD) in individuals treated in a university dental clinic located in the Center-West of Brazil. METHODS: We performed a retrospective cross-sectional study with census sample. Previously collected data from dental records were tabulated and analyzed descriptively. RESULTS: 151 patients were included on the research. Approximately 60% presented gingivitis and 32.4% periodontitis. 85.4% showed high plaque index (>10%) and 31.7% declared not to use dental floss. 12% of the participants reported being diabetic and 17.2% were smokers. The prevalence of deep pockets was the worst periodontal condition found (15.2%). CONCLUSION: The prevalence of ILD found in this population was higher than the Brazilian national average. The results can be useful to support buccal and general health promotion strategies on public policies.