Crown Restoration - Emergency Dentist London

The crown of a tooth is the portion that is covered by enamel. A restorative crown replaces this outer part toprotect and strengthen the tooth. This protection becomes necessary when a tooth cracks, has its entire structure weakened by decay, or becomes weakened after a root canal. Crowns canals cover dental implant teeth when fitting a bridge.

Crowns are also used to cover any discolored or otherwise aesthetically displeasing teeth. Cosmetic dentistry does not use crowns as much as it once did, since crowns, though aesthetically pleasing, require more radical dental techniques. Dentists are opting for more conservative methods such as bleaching, bonding, or veneers to improve the aesthetic appearance of teeth.

Dental Crown Restoration

The dentist will first remove any of the decayed portion of the tooth. The tooth is then prepared for the crown. It may be tapered on the outside edges to a peg, reinforced with a cast metal core, or even rebuilt with both a cast metal core and a post. An impression of the prepared tooth and the teeth next to it is made. A retraction cord is placed around the tooth in order to get the impression medium under the gum where the crown will be fitted.

The highly trained dental technician will create a new crown, using a cast made from this impression. The crown restoration may be made of metal with a veneer of tooth-colored porcelain, or of a porcelain structure or resin alone. The finished crown is then placed over the prepared tooth, adjusted, and cemented into place.

When a tooth has had a root canal and the root has been filled, the tooth may not be a little weak. Post crowns are used in these cases. The tooth is leveled at the gum line and a prefabricated post is fitted into the root canal. The post can then receive the new crown and hold it in place.

These Crowns can last 5-15 years or more, if they are well maintained.

Lingual brace, lingual braces London