Dental bonding is a procedure by which a tooth colored restorative material is directly attached to the tooth surface. A special light is used to bond the material to the tooth surface.
The procedure for preparing a dental bonding is really simple and most dentists can do a direct dental bonding at the clinic in 30-60 minutes for a single tooth. The surface of the tooth is roughened and a special acid etch is applied to the tooth surface. The acid etch creates mechanical tags on the surface of the tooth to allow the tooth colored dental bonding material to stick properly. Then a dental bond or adhesive is applied and allowed to dry. The dentist will also color match your tooth shade with a shade guide and then build up the restoration in layers. Each layer is exposed to a special curing light to set the layers.
The advantage of dental bonding procedures is that very little to no anesthesia is required and very little tooth structure is removed. The procedure is completed in a few minutes and looks great. But there is a disadvantage too. The dental bonding materials currently used are not very stain resistant and over a period of time subtle color changes do appear. Moreover the material is simply stuck to the tooth surface using a type of dental glue. Using too much pressure simply causes the dental bonding to snap off! It’s a better idea to use dental bonding for anterior teeth rather than the posteriors where the biting pressure is considerably lesser.
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