title: Ultrasonic and sonic scalers.
authors.forename: A D
authors.initials: AD
authors.lastname: Walmsley
mesh_terms: D003777:Dental Prophylaxis / Q000295:instrumentation*; D012534:Dental Scaling / Q000295:instrumentation*; D006801:Humans; D014464:Ultrasonic Therapy / Q000295:instrumentation*