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Objectives  To evaluate the clinical efficacy in the short‐term resolution of gingivitis of a novel protocol involving full‐mouth erythritol powder air polishing followed by ultrasonic calculus removal.    Methods  Forty‐one healthy patients completed the study. Following a split‐mouth design, quadrants 1–4 and 2–3 were randomly allocated to receive air polishing followed by ultrasonic calculus removal (A+US) or traditional full‐mouth ultrasonic debridement followed by polishing with a rubber cup and prophylactic paste (US+P). Bleeding on probing (BoP) and plaque index (PI) were collected at baseline and 2 and 4 weeks. Moreover, the residual plaque area (RPA), treatment time and patient comfort/satisfaction were evaluated at the end of the treatment.    Results  Both treatments showed a significant reduction in BoP and PI. At 4 weeks, A+US seems to reach a statistically significant lower BoP (8.7% [6.9; 10.9] vs. 11.6%[9.3; 14.4],  p  < 0.0001) and PI (10.7% [8.9; 13.0] vs. 12.3% [10.2; 14.9],  p  = 0.033). Moreover, A+US treatment time lasted on average 9.2% less than US+P ( p  < 0.0001) and was the preferred treatment for a significantly higher number of patients (73.2% vs. 17.1%,  p  = 0.0001).    Conclusion  The A+US protocol is suitable for the short‐term resolution of plaque‐induced gingivitis.

international journal of dental hygiene

Clinical evaluation of air polishing with erythritol powder followed by ultrasonic calculus removal versus conventional ultrasonic debridement and rubber cup polishing for the treatment of gingivitis: A split‐mouth randomized controlled clinical trial