Abstract

Objectives: Oral health-related quality of life (OHQoL) is a multidimensional concept which considers various aspects of life including functional factors, psychological factors, social factors, and experience of pain/discomfort in relation to orofacial conditions. The aim of this study was to assess the impact of severity of periodontal disease and educational level on OHQoL in patients referring to Yazd Dental University and Khatamolanbia Clinic. Materials and Methods: This cross-sectional study was performed on 145 patients attending Yazd Dental University and Khatamolanbia Clinic. OHQoL was measured with OHQoL-United Kingdom questionnaire that was translated to Persian which the patients were randomly asked to complete. Clinical attachment loss was examined by the clinician. Data were analyzed via SPSS software 18.0 using ANOVA. P ≤ 0.05 was considered statistically significant. Results: This study included 145 adults (61 men and 84 women) aged between 17 and 70 years. There was a statistically significant association between the severity of periodontal disease and OHQoL scores (P < 0.05). The mean QoL score was significantly lower in patients with severe periodontitis than in patients with mild periodontitis specifically with regard to psychological factors (P < 0.05). As well, patients with better educational level have higher mean QoL score that was statistically significant (P = 0.0001). Conclusion: According to the effect of severity of periodontal disease on QoL, required intervention should be done for early diagnosis and treatment to improve QoL as a result.