Veneers
Veneers can be made from either a plastic composite materials or from porcelain. Both materials have their benefits and disadvantages. Composite Veneers The benefit of composite veneers is that treatment is completed in one visit and does not require laboratory work. The surface of the underlying tooth is slightly roughened up to help adhesion and should the veneer be later removed, the surface can be smoothed down to return it to its original condition. The disadvantage of the composite material is that it is slightly porous and possibly may stain or discolour after 2-3 years. The risk of staining will certainly increase with heavy smoking, as well as frequent intakes of red wine and spicy foods. In most cases the dentist is able to polish out the staining, but if this is not possible, it is easy to replace the stained veneer with new. Porcelain Veneers Porcelain being a ceramic means that it is highly resistant to staining and discolouration. Porcelain also offers an improved cosmetic finish over composite, in that it better replicates the translucency of natural teeth. As the finish of porcelain is also highly polished, it helps prevent plaque accumulation which can lead to gum disease. This type of veneer is made by a laboratory, therefore treatment involves two appointments, one to prepare the tooth and the second, two weeks later to fit the veneer. The disadvantage of a ceramic veneer is that it requires removing a very thin slither of tooth enamel (0.5 mm) to form a very shallow depression into which the veneer is glued into place. Consequently, treatment cannot be reversed. As porcelain veneers involve two appointments and laboratory work, they are more expensive than composite veneers. Veneer
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