Opalescence PF Gels 10% with 10% Carbamide Peroxide have a 24 month shelf life when stored refrigerated and a 12 month shelf life when stored unrefrigerated.
Over time, hydrogen peroxide turns into water and oxygen. If you try to use a whitening kit past its expiration date, chances are you will only receive gel and water because the packaging has leaked oxygen. Oxygen is the key component to whitening your teeth.
These products are usually discounted when they are close to their expiration date. Using expired whitening products means you won’t get the results you want. When they expire, the hydrogen peroxide they contain breaks down, leaving only water and oxygen, which does not whiten your teeth.
When NOT refrigerated whitening products break down and degrade during storage and shipping, hydrogen ions are produced. These hydrogen ions are acidic (pH = hydrogen potential). Brightening gels therefore become more and more acidic as they break down, leading to an increasing likelihood of sensitivity and pain.
The shelf life of Opalescence Gel is 1 year unrefrigerated and 2 years refrigerated.
The take away teeth whitening trays should be fine forever. That is, as long as they haven’t been stored in extreme heat, which can cause them to warp. The only other issue is if you have had any major dental work that may affect your bite or potentially damage the teeth whitening.
Opalescence PF 35 is the strongest teeth whitening gel in the Opalescence PF line. The advanced formula contains 35% carbamide peroxide for maximum whiteness. Opalescence PF also contains additional ingredients to strengthen your teeth and reduce sensitivity.
The product must be kept refrigerated. Allow the product to warm to room temperature before use to help the splint adhere better to the teeth. Remove from package.
The challenge with such instability, however, is that all whitening gels will start to break down immediately after manufacture if not constantly refrigerated. If stored at room temperature or exposed to warmer climates and hot shipping temperatures, the peroxide gel will lose effectiveness.
Many dental offices use a form of chemical called hydrogen peroxide to do this. This hydrogen peroxide is much more concentrated than the stuff you can get in a bottle at the drug store. It penetrates the teeth to change their color from the inside.
Can teeth whitening make you sick? Teeth whitening is unlikely to make you ill, but taking the whitening gel may cause nausea, vomiting, irritated skin or a headache. Please be careful when using the peroxide gel to avoid choking.
It is best NOT to brush your teeth after bleaching. You should brush your teeth at least 6 hours after teeth whitening. The whitening process affects the enamel and can make it more porous. So if you brush right after, you can chip away some enamel.
So how often should you whiten your teeth? In general, it’s good practice to return to your dentist about once every quarter or every three months for teeth whitening. This is true even if you haven’t noticed a dramatic weakening of your smile.
Nite White whitening gel does not require regular refrigeration, while Opalescence brand whitening gel due to its glycerin content, requires refrigeration for long-term storage.
It is also recommended that you brush your teeth after using Opalescence and removing the tray from your month. You should use a soft-bristled toothbrush. If there is excess gel in your mouth after removing the splint and brushing your teeth, spit it out.
To maintain the effects of the teeth whitening treatment, patients should avoid dark foods and beverages (including coffee) for at least 48 hours.