Supportive periodontal treatment and full-mouth ultrasonic debridement: a randomised controlled clinical trial.

Purpose: To evaluate the effect of different maintenance recall intervals in patients with chronic periodontitis treated by full-mouth ultrasonic debridement.

Materials And Methods: Twenty-eight patients participated in the study and were divided into two groups: group 1 (n = 14) underwent full-mouth ultrasonic debridement followed by monthly supportive periodontal therapy; group 2 (n = 14) underwent full-mouth ultrasonic debridement followed by supportive periodontal therapy delivered at 3-month intervals. Plaque index (PI), bleeding on probing (BOP), pocket probing depth (PD), gingival recession (GR) and clinical attachment level (CAL) were evaluated at baseline and after 3 and 6 months.