Table 2.

Protocol of the study.

Appointment	Procedures
Baseline (T0)	Signature to the informed consent for the study (SAI, VAS, BEWE) Assessment of periodontal clinical indexes Professional supragingival and subgingival oral hygiene with piezoelectric and Gracey curettes Periodontal pockets decontamination with Air-flow Plus Motivation to oral hygiene and instruction for the domiciliary treatment: Group 1: toothpaste Colgate® Protection Caries toothpaste (Colgate-Palmolive, New York, NY, USA) Group 2: toothpaste Biorepair® Advanced Sensitive toothpaste (Coswell S.p.A., Funo di Argelato, BO, Italy)
After 15 days (T1) After 30 days (T2) After 90 days (T3)	Reassessment of periodontal clinical indexes (SAI, VAS, BEWE) Professional supragingival and subgingival oral hygiene with piezoelectric and Gracey curettes Periodontal pockets decontamination with Air-flow Plus Further motivation to oral hygiene and continuation of the domiciliary treatment assigned