title: Bacteriological investigation of the aerosol from ultrasonic scalers.
mesh_terms: D000391:Air Microbiology; D001419:Bacteria / Q000302:isolation & purification*; D003740:Dental Clinics; D003762:Dental Instruments; D003777:Dental Prophylaxis / Q000295:instrumentation*; D012534:Dental Scaling / Q000295:instrumentation*; D014465:Ultrasonics / Q000295:instrumentation*