| FAQ - Dental Unit Waterlines - Archived Through 2012
Which type of waterline filters are appropriate for use with dental units?
Filters that are specifically designed for use with dental units include micropore in-line filters that must be placed on each water delivery line. In addition, unit filters can be placed close to the control box to filter all lines delivering water to devices. Commercially available devices in this category also release small amounts of antimicrobial agents purported to control biofilm formation. Both types of filters require changing and maintenance according to manufacturer's instructions.
Large-pore diameter filters are provided with most dental units to prevent particulate materials suspended in tap water from entering the dental water systems; these filters have no beneficial effect on the microbiological content of water used in dental treatment.
(1) OSAP Issue Focus: Dental unit water lines. Available at http://www.osap.org/issues/pages/water/index.htm