title: Ultrasonics in periodontics.
mesh_terms: D003258:Consumer Behavior; D003728:Dental Calculus / Q000628:therapy*; D003777:Dental Prophylaxis; D012534:Dental Scaling / Q000009:adverse effects; D005069:Evaluation Studies as Topic; D006801:Humans; D013997:Time Factors; D014464:Ultrasonic Therapy / Q000009:adverse effects