Variables	Modalities	Number	% [CI]
Do you use gloves for any dental act?	Never	0	0
	Often	9	5.3 [2.4 - 9.8]
	Regularly	162	94.7 [90.2 - 97.6]
Are you wearing a mask?	Never	2	1.2 [0.1 - 4.2]
	Often	21	12.3 [7.8 - 18.2]
	Regularly	148	86.5 [80.5 - 91.3]
Do you wear glasses when there is risk of splashing?	Never	20	11.7 [7.3 - 17.5]
	Often	41	24.0 [17.8 - 31.1]
	Regularly	110	64.3 [56.7 - 71.5]
Wash your hands before and after each patient?	Never	5	2.9 [1 - 6.7]
	Often	88	51.5 [43.7 - 59.2]
	Regularly	78	45.6 [38 - 53.4]
Do you change your blouse or smock at least once a day?	Never	57	33.3 [26.3 - 40.9]
	Often	86	50.3 [42.6 - 58]
	Regularly	28	16.4 [11.2 - 22.8]
Do you rinse and disinfect any prosthesis footprint?	Never	4	2.3 [0.6 - 5.9]
	Often	50	29.2 [22.5 - 36.7]
	Regularly	117	68.5 [60.9 - 75.3]
Do you throw the needles after use into a specific box?	Never	16	9.4 [5.5 - 14.8]
	Often	18	10.5 [6.4 - 16.2]
	Regularly	137	80.1 [73.2 - 85.7]
Do you disinfect the work surfaces after each patient?	Never	0	0
	Often	40	23.4 [17.3 - 30.5]
	Regularly	131	76.6 [69.5 - 82.7]
Do you disinfect the suction tube after each patient?	Never	22	12.9 [8.2 - 18.8]
	Often	29	17.0 [11.7 - 23.4]
	Regularly	120	70.1 [62.7 - 76.9]
Do you disinfect after each patient the lamp cuffs?	Never	12	7.0 [3.7 - 11.9]
	Often	94	55.0 [47.2 - 62.6]
	Regularly	65	38.0 [30.7 - 45.7]
Do you disinfect after each patient the cuspidor?	Never	1	0.6 [0 - 3.2]
	Often	26	15.2 [10.2 - 21.5]
	Regularly	144	84.2 [77.9 - 89.3]
Do you disinfect the X-ray machine after each patient?	Never	44	25.7 [19.4 - 33]
	Often	84	49.1 [41.4 - 56.9]
	Regularly	43	25.2 [18.8 - 32.3]
Do you rinse and sterilize by heat the instruments?	Never	0	0
	Often	12	7.0 [3.7 - 11.9]
	Regularly	159	93.0 [88.1 - 96.3]