A crown or cap is a restoration that is placed on teeth that have lost a lot of their structure. There are various types of crowns, ranging from full porcelain to full metal crowns.
Your dentist will explain the advantages and disadvantages of each kind for you. Crowns may also be used to securely attach a bridge if the adjacent teeth are missing.
A bridge is a dental appliance that is used to replace one or more missing teeth. They are designed to be cosmetically appealing and to restore proper occlusion. Like crowns, bridges are fully customizable and made of various materials, including porcelain and metals. Bridges are as permanent as caps and are bonded to the surrounding teeth and are not removable.
Both crowns and bridges are created to match the colour, height, texture, and overall appearance of your teeth. Most crowns and bridges if well looked after will last a long time, eliminating the need to replace them unless they fall out or become loose. You will prolong the durability of your crowns and bridges by practising good oral hygiene and visiting your dentist for regular check-ups and cleaning.
Bonded Porcelain Crown: Most crowns normally have a metal sub-structure with a porcelain covering. An alternative, which will give a much more natural natural look to the tooth, is to have the crown made of specially strengthened porcelain which is called a full ceramic crown.
Posterior Crown: This is a crown at the back of the mouth that can be made of metal alone (eg: gold), porcelain bonded to metal or a full porcelain ceramic crown.
Anterior Crown: This is a crown at the front middle of the mouth and is usually made from porcelain fixed to metal or porcelain alone (ceramic crown).
Bridges: Sometimes teeth are lost. The adjacent teeth are prepared. A bridge is made which exactly matches the space and is fitted across the gap. These can be made of porcelain fixed to metal or porcelain alone.