A crown is a restoration that covers a tooth to restore its normal shape and size. This helps to improve the strength and appearance of a tooth. Crowns are necessary when a tooth is generally broken down and a tooth can no longer hold a filling. If a tooth is cracked or weak , a crown holds the tooth together to seal the cracks and protect the tooth from breaking further. A crown is a good way to cover teeth that are discoloured or badly shaped. Crowns are also used to cover dental implants.
A bridge is a series of crowns that are connected and used to replace a number of missing teeth. Teeth on both sides of the ‘gap’ need to be prepared to hold the bridge in place firmly with crowns and the rest of the missing teeth are replaced with ‘floating teeth’ held securely by the crowns on either side.