Dr. James C. DeFinnis's Dental Blog

Wilkes Barre Family Dentist Dr. James C. DeFinnis

Adhesive Bonding of Porcelain Veneers

BackMountainDentalFor porcelain veneers to be permanently attached to teeth, a special bonding process is involved using a light-reactive agent.

According to the Consumer Guide to Dentistry, porcelain veneers are attached to teeth through a process known as “adhesive bonding”. It starts with the application of an etchant, usually phosphoric acid, which acts to “roughen” a tooth’s surface to allow better adhesion with the veneer. Acidic etchants have been in use for bonding purposes since 1955, with a normal phosphoric acid concentration of between 30 and 40 percent. Any higher or lower than this may result in a poor bond.

The adhesive would then be applied over the tooth, and the veneer would be seated over it. High intensity light is then used to cure the adhesive. There are several adhesive products used by dentists, all of which have been tested and manufactured to ensure bonding that lasts a long time, typically fifteen years or more under normal use and conditions.

The adhesive is usually administered from their syringe containers for easy application. Excess cement is removed using a scalpel blade. The entire process can be completed in only around 20 minutes, so it is quite convenient for patients. The laboratory preparation of the porcelain veneer, however, can take from one to two weeks.


September 5, 2014 - Posted by | Back Mountain Dental, Cosmetic Dentistry, General Dentistry | , , ,

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