Teeth Whitening Risks

There are a few side effects and limitations of tooth whitening. They are detailed below.

Tooth and Gum Sensitivity

The most common side effects from tooth whitening are tooth sensitivity and gum irritation. Gum irritation is usually caused by a mouth tray that does not fit properly. Tooth sensitivity usually occurs when you first start the whitening process.

If you have either of these side effects, you can reduce or eliminate them by taking the following steps.


  • If it is a tray, wear it for a shorter period of time or only once per day. You will still get the same results, it just might take longer.

  • Give it a break for a few days and start the treatments up again.

  • Use toothpaste that is made for sensitive teeth. These toothpastes use potassium nitrate which helps to soothe the nerve endings of your teeth.

  • Your dentist can provide fluoride products to protect and replace the minerals in your teeth. Wear the product before and after the whitening treatments. Your dentist will have more information on this.

  • Gum irritation can be treated with over-the-counter products.

Some people have a more sensitive mouth than others. Although, on average, about half the people who try whitening products experience minor tooth sensitivity or gum irritation.

Composite Fillings, Crowns, and Veneers

Teeth whitening will not work on crowns, veneers or composite fillings. In fact, you may end up with different colored teeth unless you replace the crown or veneer. If you are planning on a having any composite work done on your teeth, it is recommended to have it done before whitening. Otherwise it will need to be replaced.

Gum Disease, Cavities, or Worn Tooth Enamel

If you have any of the above, teeth whitening bleach may not be effective.

Tetracycline Staining

If your teeth are severely stained by tetracycline you might not experience a dramatic improvement with teeth bleaching. However, it does make a difference after prolonged treatment.

Age

Tooth whitening is not recommended for children under the age of 16. At this age the teeth are still developing and the nerves are enlarged. Teeth whitening could cause sensitivity and possible damage to the teeth.

Pregnancy

Dentists do not recommend teeth whitening for women who are pregnant or lactating. Swallowing even the smallest amount of whitening bleach can be harmful to a fetus.

Allergies

Obviously, anyone allergic to peroxide should not use a teeth whitening product.

Some people expect glowing white teeth the first time they whiten. They may be disappointed. Results depend upon the individuals genetics, the condition of the teeth, and the whitening method used. Also keep in mind that whitening is not permanent. If you are lucky, it will be a year or longer before another treatment is needed.

That being said, teeth whitening is a great, cost effective way to get a nicer smile.