Increasing evidence points to smoking as a major risk factor for periodontitis and, affecting the prevalence, extentent and severity of the disease. The aim of our study was to asses due to clinical and statistical methods oral health status among a group of 61 patients of Conservative Dentistry and Perodontology Department Poznań University of Medical Sciences according to DMF and CPITN indices, PPD and CAL level. In statistical analysis the Friedmann and Kruskal Wallis test were used.