Suction Valves are medical devices used during each dental procedure.  They should be guaranteed clean for every patient.  Unfortunately, studies show 99% are not.  The photos below are everyday examples.  Each respective dental office considered these "clean".
Patient risk and concern with Saliva Ejector Backflow refers to extreme levels of bacteria surging back into the patients mouth.  Subsequently, valves leak when they are not maintained properly because of multiple o-rings.  Leakage seeps in the form of a drip or bubble onto patients.  Common bacteria found are staphylococci, micrococci and non-fermentive Gram-negative rods.  Also pathogens such as Pseudomonas aeruginosa and Staphylococcus aureus occur from backflow fluids.  Reference Barbeau Backflow Study
One-time a day flushing of the lines only takes into consideration "1 patient" neglecting all other patients.
To guarantee patient safety, clean valves and backflow prevention devices must be used on every patient.  Only a disposable device can 100% guarantee safety.  Reusable backflow devices often clog and cannot be cleaned.  Straw replacement does not remove the valve leakage and seepage risk that often occurs.

For More Information on the safest valve systems - please visit www.dovedentalproducts.com

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Contact us:
DOVE Dental Products
Tel: 855-800-3683 (DOVE)
Email:  sales@stomadental.com