All-ceramic or porcelain dental crowns provide better natural color match than any other crown type and may be more suitable for people with metal allergies. All-ceramic crowns can be used for frontal and back teeth. The crowns, when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line.
Crowns are an ideal way to repair teeth that have been broken, or have been weakened by tooth decay or a very large filling. A crown could be used for a number of other reasons, for example:
To strengthen a badly broken down or weakened tooth,
To restore to their original contour worn or fractured teeth
Spaces can be filled and a more regular appearance restored or created.
To improve the appearance of a badly broken down or heavily filled tooth,
Highly discoloured and stained teeth can be improved,
Poorly positioned teeth can be built forward.
To support the end/s of a bridge which is replaced by other missing teeth