title: Control of cross-infection risks in the dental operatory: prevention of water retraction by bur cooling spray systems.
abstract: A new dental unit control system was found to overcome the possibility of mechanically retracting bacteria from the mouth into the water line used to provide a spray of water to cool high-speed burs during treatments. This was demonstrated by results obtained after clinical use and after use in simulated, worst case test conditions using a red tempera indicator solution and indicator bacteria.
mesh_terms: D001412:Bacillus subtilis / Q000302:isolation & purification; D001419:Bacteria / Q000302:isolation & purification*; D004396:Coloring Agents; D003140:Communicable Disease Control; D003754:Dental High-Speed Equipment; D003762:Dental Instruments; D004866:Equipment Contamination / Q000517:prevention & control*; D004867:Equipment Design; D006801:Humans; D009055:Mouth / Q000382:microbiology; D013396:Suction; D014871:Water Microbiology
chemical_list: D004396:Coloring Agents