TABLE 5. Preferred barrier protection or cleaning and disinfection of environmental surfaces.

	n	%
Dental unit's table and water trunks	83	61.5
Dental unit's head gear	61	45.2
Dental unit's light handle	41	30.4
Light curing devices	24	17.8
Dental radiograph equipment	25	18.5
Telephones, drawer and drawer handles	12	8.9