When Should Veneers Be Replaced?

Dental veneers can transform a smile. The American Dental Association defines these as "thin, custom-made shells crafted of tooth-colored materials designed to cover the front side of teeth." These restorations are typically made of porcelain or resin and can last for many years. There are some situations in which veneers need to be replaced; most of these occur as a result of normal wear and tear on the teeth. Patients should seek dental care when noticing certain things about existing restorations.

Situations in which veneers should be replaced

Because some tooth structure is removed during the veneer procedure, a patient must keep a crown or veneer on the tooth for life. Cosmetic restorations can be replaced when the patient no longer likes the shade of the teeth. They should also be replaced if broken or causing decay in the tooth.

Excessive stains

While porcelain veneers tend to resist staining more than resin ones, both kinds can become discolored over time. If a patient uses tobacco or drinks beverages such as coffee, tea, and red wine, the teeth become stained faster.

Teeth whitening products can be used on a patient's natural enamel to change the shade of the tooth. However, this does not work with veneers. The bleaching material will etch the surface of the porcelain or resin and damage it. Therefore, if a patient wants to change the shade of the teeth, replacement is the only choice.

Cracks or breaks

Biting into hard foods can cause microcracks in a veneer over time. Eventually, the teeth begin looking noticeably cracked from chronic wear. This type of restoration can become weakened over time and break or chip off. This is much more common with resin (composite) veneers, but it can happen with porcelain ones as well.

When a break happens, the dentist usually advises the replacement of one or all the veneers. When coupled with a patient's dislike of the shade of the teeth, replacement becomes the logical option.

Dental decay

When a patient chooses to get veneers placed on the teeth, commitment to good oral hygiene is paramount. The margins around these restorations can become plaque traps if not cleaned properly. When this happens, cavities begin to form under the veneers. This can lead to a loss of a tooth if not treated promptly.

If a dentist detects a cavity under this type of restoration, they will likely recommend replacement. The existing veneer is taken off, the cavity is cleaned out, and a new restoration is placed on the tooth.