id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-298641-3munq51l	Ionescu, Andrei C.	Topographical aspects of airborne contamination caused by the use of dental handpieces in the operative environment.	2020-07-01		.txt	text/plain	4119	228	48	ABSTRACT Background The use of dental handpieces produces aerosols containing microbial agents, bacteria and viruses representing a high-risk situation for airborne cross-infections. Methods Streptococcus mutans suspension was infused into the mouth of a phantom, and an operator performed standardized dental procedures using an air turbine, a contra-angle handpiece or an ultrasonic scaler. The present findings allowed to reject both null hypotheses, implying that the presence of the tracer was not uniformly detected on the dental unit and the operatory environment surfaces, and the spread of the tracer was significantly different when the tested handpieces were used. Furthermore, the area contaminated by the biological tracer via splatters and aerosols was surprisingly wide, reaching a maximum distance of 360 cm from the infection source when we operated the air turbine. Very few studies mapped the operatory room surfaces reached by aerosols produced by dental handpieces, and, to our knowledge, none are based on the use of a biological tracer under standardized conditions.	./cache/cord-298641-3munq51l.txt	./txt/cord-298641-3munq51l.txt