Why veneers fail
An important consideration prior to having any dental cosmetic work is to understand both the pros and the cons of each particular dental procedure. And while porcelain laminate veneers are among the most aesthetic means of creating a beautiful, more pleasing smile, they are permanent and non-reversible and should be maintained properly.
On average, you can expect porcelain veneers to last anywhere between 7 and 20+ years. However, much of that depends on whether or not you care for them properly in addition to the quality of the dental porcelain, the craftsmanship, and placement of them. Not everyone is a candidate for veneers. People who have a closed bite or are heavy grinders or clenchers are usually poor candidate for dental veneers. The jaw movement during clenching can cause the veneers to loosen and fall. Also a strong bond to your teeth depends on how much enamel you leave behind after initial preparation. If you have severe crowding and need major change, the dentist need to remove more tooth structure in order to get to a desirable result. Veneers don’t bond well to dentin, the second layer of your tooth structure. For those patients with the above issues we recommend to have all porcelain crowns for better stability and retention. Porcelain crowns are made of the same material as veneers. The only difference is the preparation of your tooth. For porcelain crowns, the back part of your tooth is prepared as well.
How long your veneers last can also depend to some extent upon how you age. This is because the gum tissues attached to the living tooth that your veneers are cemented to may shrink or pull away from the tooth exposing its root surface. If this occurs, you should see your dentist for an evaluation, as it may require veneer replacement. Or, the issue might be resolved through some minor periodontal (gum) plastic surgery.
Porcelain veneers are a low maintenance solution for solving a multitude of cosmetic dental challenges, but they do require that you protect them during sports or vigorous activity. You should also wear an oral appliance or mouthguard (nightguard) to protect them from grinding or any other involuntary damage during sleep.
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