PureBite generates 42,000 ultrasonic pulses per second, creating millions of microscopic cavitation bubbles. These bubbles implode on contact with your retainer, physically shattering biofilm and dislodging debris from every groove and crevice. UV-C light at 253.7nm wavelength simultaneously destroys bacteria, viruses, and fungi.

Cleaning tablets dissolve surface debris but cannot penetrate biofilm — the invisible bacterial shield that forms in microscopic grooves within one hour of wearing your retainer. Only mechanical disruption (ultrasonic cavitation) can physically shatter biofilm. Tablets also leave chemical residue.

Brushing creates micro-scratches on your retainer's surface that actually trap MORE bacteria and accelerate yellowing. The AAO specifically warns against brushing retainers with toothpaste.

Yes. The primary cause of retainer yellowing is bacterial biofilm buildup. By shattering and removing biofilm daily, PureBite prevents and reverses yellowing. Many customers report their retainers look clear again within the first week.

Absolutely. PureBite uses room-temperature water only — no heat that could warp aligners. Ultrasonic waves clean without physical contact, making it gentler than brushing. Works on all clear aligner brands, Hawley retainers, night guards, and mouthguards.

Daily. Bacteria begin forming biofilm within 1 hour of wearing your retainer. A 5-minute cycle each morning keeps your appliance fresh. Simply fill with water, drop in your retainer, and press the button.

No. Just water. The ultrasonic cavitation and UV-C light do all the work. No tablets, no chemicals, no solutions. This saves you money and eliminates chemical residue on your retainer.

Yes. Every PureBite comes with a 1-year manufacturer's warranty covering defects in materials or workmanship, plus our 90-day money back guarantee.