Crowns are normally used to:
restore the form, function and appearance of badly broken down, worn or fractured teeth, where other simpler forms of restorations are unsuitable or have been found to fail clinically.
improve the aesthetics of unsightly teeth which cannot be managed by simpler cosmetic procedures.
maintain the structural stability and reduce the risk of fractures of extensively restored teeth including like teeth which have been root filled, especially posterior teeth which are subjected to higher biting forces.
restore a dental implant