Table 1.

Number of tips from different instruments exposed to each treatment protocol and subsequent media for bacterial culturing or ATP bioluminescence

	Multienzyme detergent		Neutral pH detergent		Chlorhexidine scrub		Saline
	Forceps	Needle drivers	Forceps	Needle drivers	Forceps	Needle drivers	Forceps	Needle drivers
Sheep blood agar	23	23	23	23	23	23	23	23
Chocolate agar	20	20	20	20	20	20	20	20
Brucella agar	20	20	20	20	20	20	20	20
ATP bioluminescence	21	21	21	21	21	21	21	21