Crowns, Bridges and Onlays
What is a Crown?
A crown, also known as a cap, is a covering that encases the entire tooth surface, restoring it to its original shape and size. A crown protects and strengthens tooth structure that cannot be restored with fillings or other types of restorations. They are highly durable and will last many years, but like most dental restorations, they may eventually need to be replaced.
Crowns are needed for:
Broken teeth
Teeth with fractured fillings
Teeth with extensive decay
Teeth that have had root canal therapy
Teeth that have too large of filling
Implant restoration
Certain cosmetic reasons
What is a Bridge?
A dental bridge is a fixed (non-removable) appliance that is an excellent way to replace missing teeth. A dental bridge is a false tooth or set of teeth, which is fused between two porcelain crowns to fill in the area left by a missing tooth or teeth. A bridge is one of a few options for replacing missing teeth!
What is an Onlay?
Like a crown, an onlay is used when a tooth is too damaged or decayed for a filling or other procedure. It’s similar to a crown, in that it covers and protects the tooth surface. But where a crown covers the entire tooth, the onlay covers only the cusps and biting surface. An onlay is sometimes also referred to as a partial crown. Onlays are a conservative alternative to crowns because good tooth structure is preserved!