Crest Whitening Strips
Crest Whitestrips are great teeth whitening products. They all work the same way, and they come in many different forms. The strips contain hydrogen peroxide, which is the very effective bleaching agent found in many teeth whitening products.
It used to be that teeth whitening products contained abrasive materials, which were supposed to act like sandpaper, grinding away discoloring particles off of the teeth. The idea was to remove any particles that left dark colors on the teeth, restoring them to their natural, white color. However, it was soon found out that a lot of people have teeth that are not naturally white. Some people have teeth that are naturally very yellow, so a new solution was needed.
Soon after this was discovered, hydrogen peroxide made an appearance. Hydrogen peroxide is far superior to abrasive materials in that it does not scrub the teeth but instead bleaches them. Today, every teeth whitening product except toothpaste uses hydrogen peroxide to stain the teeth white (toothpastes still use abrasive materials, as they are effective for cleaning).
Crest Whitestrips are made with an adhesive material and are designed to be stuck to the teeth. They are left on for about thirty minutes twice per day, except for the Daily Multicare Whitening and the Daily Multicare Whitening with Tartar Control products, which are left on for only five minutes, once per day.
Whitestrips can be bought over-the-counter or not-over-the-counter in many varieties and strengths, with hydrogen peroxide content of anywhere from six to fourteen percent. For teeth whitening products, they work exceptionally well.
Whitestrips, however, are not without their flaws. Because they are a strip, they cannot get in between the teeth. Sometimes, this causes a “zebra” effect on the teeth. Additionally, the adhesive material they are made with is not strong, and the strips can easily slide off the teeth, which prohibits users from eating, smoking, or drinking while wearing them. Crest solved this problem, however, with their Advanced Seal product; Advanced Seal Whitestrips contain a much stronger adhesive material and does not restrict the activities of a user.
Because they are strips, the location of the Whitestrips on the teeth is easy to control. Therefore, users can avoid touching the gums with them, which can avoid tissue damage. Even though they are not perfect, Crest Whitestrips are some of the best teeth whitening products available.
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