Wednesday, January 14, 2009

Questions!!!...=)


Restoration of teeth:

Dental restorations are procedures to repair a damaged or decayed tooth. The most common type of restorative dentistry is a filling, which may be amalgam (silver), composite resin (white) or other materials. Crowns may be used when a filling will not be enough to strengthen the tooth, such as after root canal treatment or apicoectomy. Inlays and onlays are similar to crowns.


Tooth decay is the destruction of teeth due to the interaction of teeth with bacteria and food. Plaque build-up can lead to tartar formation and, eventually, cavities (dental caries) and/or gum disease. Tooth injuries can involve a damaged, fractured or cracked tooth, as well as trauma such as tooth loss. Bruxism (teeth grinding or clenching) can lead to tooth surface loss.

  1. what are the available dental restorations?
There are different types of dental restorations which are used in particular situations.
  • Amalgam restoration
An amalgam is an alloy or combination of two or more metals.
Amalgam fillings
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Preparation

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After

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Amalgam fillings








  • Bonding Or Composite Restoration
    "The superglue of dentistry"

Composite resin is a plastic tooth-coloured material that is used as a filling. It is also called a white or plastic filling. The process of fusing the filling material to the tooth is called bonding.

White fillings
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Decay before

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After repair
White fillings
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Fracture of front tooth

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Cosmetic repair
  • Inlay restoration
    An inlay is a solid filling that is cemented into a tooth that has been specially prepared for it.

Porcelain inlays

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Before

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Preparation

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After

Gold inlays

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Before

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Preparation

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After

See Bonding

  • Onlay restoration
An onlay is a modified inlay. It is also made by a dental technician, from the impression taken of a prepared cavity.

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Before

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After
  • Replacement crown or "crown"
A replacement crown does exactly what its name implies, it replaces the natural crown of a tooth. It is often simply called a crown.

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Before

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Preparation

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After

See Replacement Crowns for more information.

  • Porcelain veneer restoration
    The porcelain veneer is cemented into place, using a special cement that bonds it to the tooth.

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Before

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After
Composite resin is a plastic tooth-coloured material that is used as a filling. It is also called a white or plastic filling.

Bonding is the process of repairing a tooth with a composite filling .

Bonding has all the qualities needed for cosmetic dentistry. This applies particularly to the repair of discoloured front teeth..

The visible surface of a front tooth can be "re-surfaced" with the use of composites. This will, however, be less durable than a porcelain veneer.

White fillings
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Decay before

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After filling
White fillings
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Fracture of tooth

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Cosmetic repair

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