What is composite resin bonding?
This term refers to a kind of tooth-colored material that is a mixture of a plastic resin and a glass filler. The glass gives the mixture, or composite, strength and translucency that is similar to a natural tooth. The composite is bonded to the tooth by slightly abrading or roughening the tooth so that the resin fills in small cuts in the tooth surface and bonds with it. The end result functions and looks like part of the original tooth.
What is bonding used for?
This technique is a good way to restore chipped or stained teeth or to change a tooth's shape or color. It can also be used to restore parts of a tooth near the gum line where the gums have receded and left the root partially exposed.
What are the advantages of bonding?
Composite resin tooth restorations have several advantages.
- They take only a single dental visit because they are done right in the dental chair rather than having to be sent to a dental lab for preparation.
- They are less expensive than many other dental restorations.
- They leave most of the original tooth intact since little tooth preparation or drilling has to be done in order to make the composite material bond to the tooth.
- They can be made in a wide range of colors and can be matched well with the teeth around them.
- Because little of the original tooth has to be removed, they are a good choice for teens, whose dental arches (upper and lower jaws) are still developing.
What are the disadvantages of bonding?
The composite resin material is not as strong as the original tooth material, so the bonded restorations may not last over a long time. If it does last, the material may also stain as it ages.
When should you choose bonding?
Composite resin bonding is a good choice for a quick and attractive tooth restoration that may be replaced later by something more permanent, such as porcelain veneers.