A crown or "cap" is used when a tooth has which been broken, or may be weakened by decay a very large filling or following root canal therapy.
The tooth is prepared for the crown by the dentist and the final crown is made by a laboratory. A temporary crown may be fitted in the interim. The crown is then cemented onto the tooth.
Crowns may be metal, porcelain, ceramic or porcelain bonded to metal.
Inlays and onlays are custom made fillings fabricated in the laboritory and fitted in a similar method to a crown. They provide the advantage of preserving more of the natural tooth substance and also provide excellent aesthetic results.