Filters may be installed in-line near the point-of-use (e.g. between the waterline and the dental instrument) to block the passage of microorganisms. Filters will have no effect on the development of biofilm in the waterlines, but will remove microorganisms as the water is delivered to the patient.
Bristled definition, one of the short, stiff, coarse hairs of certain animals, especially hogs, used extensively in making brushes. See more.
Definition of rub for English Language Learners. : 1  to move something (such as your hand or an object) back and forth along the surface of (something) while pressing. : 2  to move (two things) back and forth against each other. : 3  to move back and forth many times against something in a way that causes pain or damage.