The Journal of the American Dental Association
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J Am Dent Assoc, Vol 127, No 5, 611-615.
© 1996 American Dental Association
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Journal of the American Dental Association, Vol 127, Issue 5, 611-615
Copyright © 1996 by American Dental Association

RESEARCH

Backflow in low-volume suction lines: the impact of pressure changes



GL Mann, TL Campbell, and JJ Crawford
University of North Carolina at Chapel Hill, School of Dentistry, Department of Dental Ecology-Dental Hygiene 27599-7450, USA.

A previous study indicated that fluid can flow backward in low-volume suction lines when patients close their lips around the saliva ejector tip. The authors investigated this phenomenon further. They documented physical and mechanical parameters of saliva ejector backflow in low-volume suction lines and concluded that backflow is possible but can be avoided with simple precautions.




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Copyright©1995-1996 American Dental Association (ADA).
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