Crowns are tooth shaped coverings used in cosmetic dentistry to restore the natural look of the teeth.  They are used when the filling area is too large to be filled with usual filling material.  Crowns are also used for fixing the teeth that are badly broken or chipped.  Crowns are recommended for root canaled teeth as they may become brittle after the nerve has been removed.

We use porcelain or zirconia crowns for front teeth because they look like natural teeth and have several shades that can be mixed to match the color of the surrounding teeth.  Porcelain  and zirconia has enamel-like features when it comes to light.  Porcelain and zirconia are translucent which makes the tooth with porcelain or zirconia crown look like a natural one.