A dental crown is a fixed prosthetic object that is cemented onto a tooth. Only a dentist can remove it once it's in place. The main purpose of a crown is to cover a damaged tooth, but it also strengthens it, improving its overall appearance and alignment in the mouth.
There are four different types of dental crowns:
- Ceramic: These are used to restore the front teeth, and are popular in this area for their ability to blend in with the natural color of their teeth. The crown is made of a porcelain-based material.
- Porcelain-fused to metal: This crown provides a stronger bond than regular porcelain because it is connected to a metal structure. It is also extremely durable.
- Gold alloys: This crown is a mixture of gold, copper and other metals. In addition to providing strong adhesion to the tooth, it does not fracture or wear the tooth.
- Base metal alloys: This crown is composed of non-noble metals that are highly resistant to corrosion and create a very strong crown. It also requires that the least amount of healthy teeth be removed before adjustment.