Teeth whitening is an effective method for lightening the discoloration of teeth. The coloration of a tooth may be caused by the natural aging process, foods or drinks, medications, and/or smoking. The result of tooth whitening is a whiter smile that brightens the face and increases self-confidence. However, it is important to remember that teeth whitening does not last forever and multiple bleaching sessions are often required to maintain the desired result.
There are various tooth whitening methods currently available, and most dentists will recommend the best option for your individual needs based on health history, hard and soft tissue status, placement of restorations, sensitivity issues, and a shade assessment. The ADA also notes that some over-the-counter whitening products can be too abrasive and damage the enamel, especially with extended use.
Teeth Whitening: Tips from the Pros
The most common stains on the teeth are intrinsic (natural) and extrinsic (environmental). Intrinsic stains can be lightened with toothpastes that have increased cleaning action, or with products that contain bleaching agents to react with chromogens and lighten the color of the tooth.
Extrinsic stains can be lightened with a variety of commercial whitening products, including whitening strips and mouth rinses that contain hydroxyl peroxide, which breaks down chromogens and bleaches the surface of the tooth. Many of these are available over-the-counter, but a dental professional should be consulted to evaluate the patient’s risk and goals. Some products require the use of a mouthguard to protect the gums from irritation.
