Intrinsic tooth discoloration is staining that affects the deeper levels of the teeth. It is less common than extrinsic discoloration, which affects only the tooth surfaces. Intrinsic staining is more difficult to treat than extrinsic staining, because it does not respond as readily to tooth whitening. It is usually treated by a cosmetic dentist, often with porcelain veneers.
Causes of Intrinsic Tooth Discoloration
Intrinsic tooth discoloration most commonly occurs while the teeth are developing. Teeth develop bands of dark color due to exposure to certain type of antibiotics, and can develop a similar kind of discoloration when there is too much fluoride present during the teeth’s development. Because this staining affects the deeper layers of the enamel, teeth whitening is often ineffective.
Intrinsic tooth discoloration can also occur due to injuries to the tooth. Trauma to the tooth can cause blood to fill small holes in the enamel, darkening the teeth. This type of staining can fade over time. The tooth can also darken, becoming yellowish, if the enamel is subject to wear and tear that causes it to erode. The underlying dentin shows through the enamel, giving the teeth a yellowish cast.
Treatment for Intrinsic Tooth Discoloration
In some cases, though this is rare, intrinsic staining responds to teeth whitening. In most cases, though, your cosmetic dentist is likely to recommend porcelain veneers.
Veneers are a popular treatment for severe discoloration and surface damage to the teeth. The veneer is made of thin porcelain, carefully color matched to your other teeth. They are affixed to the tooth surfaces with a special adhesive. The porcelain requires little restructuring of the tooth because they are so thin, and the porcelain lasts many years if well taken care of. A veneer can also be used to treat pitting, cracks, or chips in the teeth, or to improve the look of slightly misaligned teeth.
If your teeth are discolored by intrinsic staining, please contact our office at our office for a consultation to find out how we can restore your perfect smile.