Both crowns and most Bridges are fixed prosthetic devices. Unlike removable devices such as dentures, which you can take out and clean daily, crowns and bridges are cemented onto existing teeth or implants, and can only be removed by a dentist.

How do crowns work?  

A crown is used to entirely cover or "cap" a damaged tooth. Besides strengthening a damaged tooth, a crown can be used to improve its appearance, shape or alignment. A crown can also be placed on top of an implant to provide a tooth-like shape and structure for function. Porcelain or ceramic crowns can be matched to the color of your natural teeth. Other materials include gold and metal alloys, acrylic and ceramic. These alloys are generally stronger than porcelain and may be recommended for back teeth. Porcelain bonded to a metal shell is often used because it is both strong and attractive.

Metallic Dental Crown              All Porcelain Dental Crown

Dentists recommend a crown to

Replace a large filling when there isn't enough tooth remaining –in some cases the decay is so much that the filling is not possible and if filling is done chances of fracture are there as the left out tooth structure is very less. In such cases crowns are recommended.

Protect a weak tooth from fracturing –the crown protects a weak tooth from fracture. It is always better to save the natural tooth even if it can be saved with a crown. If it is fractured and it has to be removed then the procedure of replacing the missing tooth becomes very lengthy.

Restore a fractured tooth –if a tooth is fractured and the dentist think that veneer or the composite filling is not the answer then you have to go for the crowns.

Cover a dental implant –if some tooth is missing and you have opted for implant then above the implant to cover it crown has to be given.

Dental Crown to cover an Implant

Cover a discolored or poorly shaped tooth –if the tooth is discolored and it is poorly shaped which looks very bad then crown is the answer if other options fail.

On the root canal treated tooth – after root canal the tooth becomes brittle as the normal blood and nerve supply of the tooth is not there. So root canal treated teeth are more prone to fracture. These teeth should be protected by the crowns.

Dental Crown on Root Canal Treated Tooth

 

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  • Paul Thompson

    Paul Thompson 28 - April - 2015, at 08:28 AM

  • Thank you for sharing this information, it really helps a lot. Now I know more about dental crowns and its purposes. 

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