Objectives: The present study aims todetermine the periodontal status and frequencies ofthe systemic diseases encountered in individualsadmitted to Periodontology Department of Facultyof Dentistry at Cumhuriyet University.Materials and Methods: The present studyincluded 1400 individuals aged between 12-82, 834of whom were female, and 566 of whom were male.The factors investigated were periodontal status,oral hygiene habits, smoking and presence ofsystemic diseases. Clinical and radiologicalexaminations were utilized in the diagnosis ofperiodontal disease. Results: When periodontal conditions wereinvestigated, it was found that 0.3% of the patientswere healthy, 51.9% had gingivitis, 46,4% had chronic periodontitis and 1.4% had aggressiveperiodontitis. The prevalence of systemic diseasesin the sample group of the study was 39.2%. 31.4 %of the patients with gingivitis, 47.9% of the patientswith chronic periodontitis and 50% of the patientswith aggressive periodontitis were also found tohave systemic disease. 2.1% of the patientsincluded in the study had hepatitis and 24.4% weresmokers. Conclusions: The prevalence of periodontal andsystemic diseases in the sample group of the studywas found to be high. A detailed medical history ofall patients with periodontal disease should beobtained and investigated and an appropriatetreatment should be planned accordingly.