Periodontal Treatment by Dental Undergraduate Students: Assessment of the Patient's Oral Quality of Life - A Prospective Pilot Study.

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To assess the impact of nonsurgical periodontal treatment, performed by undergraduate dental students, on oral health-related quality of life of patients with periodontitis. An observational, prospective, single-arm cohort study with pre‑post test involving 31 undergraduate dental students was performed. A complete periodontal examination was performed before and after receiving nonsurgical periodontal treatment. The main independent clinical variables assessed were the degree of periodontal inflammation and the number of teeth with periodontitis. Oral health-related quality of life was assessed before and after treatment through the Oral Impacts on Daily Performances (OIDP) questionnaire. The association between the extent of periodontal treatment (measured as number of treated teeth) and final OIDP score was assessed, adjusting for age, sex, and baseline OIDP, in a multiple regression model. Thirty-four patients were enrolled and treated by the undergraduate students. The mean OIDP value (global absolute score), representing the severity and frequency of the impacts, decreased from 26.2 to 12 after treatment. The mean percentage of impact, representing the number dimensions affected by oral health (global percent score), was reduced from 13% to 6%. However, no association between the number of treated teeth and post-treatment OIDP score was observed after adjusting for age, sex, and baseline OIDP score. Nonsurgical periodontal treatment performed by undergraduate dental students improved the oral health-related quality of life of periodontal patients, although no statistically significant association was found between the extent of periodontal treatment and the final OIDP score.