Treatment of periodontitis requires removal of dental biofilm both through professional mechanical plaque removal and domiciliar oral hygiene procedures. This study aims to compare biometric and psychological results after professional treatment of periodontitis carried out by piezoelectric or magnetostrictive ultrasonic devices.

Patients diagnosed with periodontitis will be assessed for eligibility criteria. Full-mouth periodontal assessment will be performed by an examiner to detect severity and extension of the disease. Thereafter, patient will receive oral hygiene instruction and a closed envelope with patient allocation will be opened. After the allocation to the intervention group, full-mouth ultrasonic debridement will be delivered to the patient by an operator and information about patient perception will be collected. Three months later, patients will be recalled for a new periodontal assessment.

Inclusion Criteria:

• >18 years
• periodontitis of stage 1 and 2
• absence of systemic chronic disease

Exclusion Criteria:

• anticoagulants treatment
• antibiotic treatment 3 months before the screening visit