Teeth whitening strips are a popular choice for those seeking a brighter smile without the hassle of a dentist visit. They’re easy to use, relatively affordable, and promise noticeable results in a short period. However, there’s more to these handy strips than meets the eye. Here are three facts about teeth whitening strips that might surprise you.
They Work Below the Surface
While it’s easy to assume that teeth whitening strips merely tackle surface stains, their true magic happens below the enamel. Hydrogen peroxide or carbamide peroxide used in the strips penetrates the enamel and reaches the dentin layer, where it breaks down both surface stains and deeper discoloration.
Not For All Stains
Despite their powerful whitening action, teeth whitening strips are not a cure-all for every type of tooth discoloration. They are most effective on extrinsic stains caused by food, drinks, and smoking. These are the stains that accumulate on the outer layer of your teeth and are generally easier to lighten.
They’re Not Good For Your Gums
When applying the strips, make sure they do not come into contact with your gums. Prolonged exposure to the whitening agents can cause gum irritation and discomfort. If you notice irritation, give your gums a break before continuing with the treatment.
