Back
Composite Resin FAQ's
A composite filling is a tooth-colored plastic and glass mixture used to restore
decayed teeth. Composites are also used for cosmetic improvements of the smile by
changing the color of the teeth or reshaping disfigured teeth.
How is a composite placed?
Following preparation, the dentist places the composite in layers, typically using
a light specialized to harden each layer. When the process is finished, the dentist
will shape the composite to fit the tooth. The dentist then polishes the composite
to prevent staining and early wear.
What are the advantages of composites?
Aesthetics are the main advantage of composites, since dentists can blend shades
to create a color nearly identical to that of the actual tooth. Composites bond
to the tooth to support the remaining tooth structure, which helps to prevent breakage
and insulate the tooth from excessive temperature changes.
What are the disadvantages?
After receiving a composite, a patient may experience postoperative sensitivity.
Also, the shade of the composite can change slightly if the patient drinks tea,
coffee or other staining foods. The dentist can put a clear plastic coating over
the composite to prevent the color from changing if a patient is particularly concerned
about tooth color. Composites tend to wear out sooner than silver fillings in larger
cavities, although they hold up as well in small cavities.