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2. Spread of organisms from dental air rotor;Belting, C.M.; Haberfelde, G.C.; Juhl, L.K.;J Am Dent Assoc,1964
3. Effect of a dental air turbine on the bacterial counts;Larato, D.C.; Ruskin, P.F.; Martin, A.,1966
4. Bacteriological investigation of the aerosol from ultrasonic scalers;Holbrook, W.P.; Muir, K.F.; Macphee, I.T.; Ross, P.W.;British Dental Journal,1978
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