Scaling and Root Planing per Quadrant Versus One-Stage Full-Mouth Disinfection: Assessment of the Impact of Chronic Periodontitis Treatment on Quality of Life--A Clinical Randomized, Controlled Trial.

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There are few randomized, controlled clinical trials about the effect of non-surgical periodontal treatment on oral health-related quality of life (OHRQL). This study aims to compare the effects of two different forms of non-surgical periodontal therapy, scaling and root planing (SRP) per quadrant and one-stage full-mouth disinfection (FMD), on periodontal clinical parameters and OHRQL of patients with chronic periodontitis. In this randomized, controlled clinical trial, the questionnaires Oral Impacts on Daily Performance (OIDP) and Oral Health and Quality of Life (OHQoL) were given to 90 patients divided into two groups: SRP (n = 45) and FMD (n = 45). Periodontal clinical parameters recorded included probing depth, clinical attachment level, plaque index, and gingival index. For statistical analysis, χ(2) test, Fisher exact test, Mann-Whitney U test, and Wilcoxon test were used. Intention-to-treat analyses were performed at T0 (baseline) for periodontal clinical parameters, T1 (30 days after treatment) for questionnaires, and T2 (180 days after treatment) for both. No significant differences were identified between the SRP and FMD groups in regard to OHQoL and OIDP scores when comparing the data of T1 and T2. Patients treated by both SRP and FMD showed improvement in all periodontal clinical parameters and OHRQL, with no significant differences between treatment groups.