First, the decay (if present) is removed and a protective coating might be placed inside the tooth. The tooth then is etched with a mild acidic solution.
This roughens the enamel surface and allows the bonding material to adhere to the tooth. A shade of the filling material is chosen that matches your natural tooth. Then a bonding agent is applied to the etched tooth surface. Finally, the bonding composite is placed and shaped to match to contour of the natural tooth. In most cases, the dentist will use an ultraviolt light to help harden the material. The surface of the composite is then smoothed and polished to achieve a natural luster and appearance.
What are the advantages of composite bonding?
Appearance: Available in variety of colors and shades, composite bonding can be made to look like your natural tooth.
Strength: Composite bonding, although not as strong as 'silver fillings,' produces a filling that supports a tooth, making it less likely to break.
Tooth conservation: In composite bonding, only a small amount of natural tooth structure is removed.
Reduced anesthesia required: Bonding usually does not require anesthesia unless decay is present. Your teeth can be restored with little or no discomfort.
Economics: Composite bonding is affordable compared to more expensive procedures like full crowns or veneers.
How long will composite bonding last?
It's true that composite bonding fillings wear faster than 'silver fillings' especially on chewing surfaces of back teeth. Although not as strong as crowns or veneers, with proper care a bonded restoration may last five years or more before requiring touch up or replacement.