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1 Department of Operative Dentistry, College of Dentistry, State University of Iowa, Iowa City, Iowa, and State Hygienic Laboratory and Department of Hygiene and Preventive Medicine, College of Medicine, State University of Iowa, Iowa City, Iowa
This investigation was undertaken to determine whether or not there was a difference in aerosol production when using either an air-turbine or conventional dental handpiece. A 0.2-ml. volume of a suspension of Serratia marcescens was deposited on a tooth, and the aerosol produced by each handpiece was sampled, using an air sampler. Greater concentrations of the indicator organism were collected while using the air turbine than during collection of the same volume of air with the conventional handpiece.
Submitted on August 17, 1962
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