A dental crown is a tooth-shaped “cap” that is placed over a tooth — to cover the tooth to restore its shape and size, strength, and improve its appearance.
The crowns, when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line.
Why Is a Dental Crown Needed?
Dental crown may be needed in the following situations:
To protect a weak tooth (for instance, from decay) from breaking or to hold together parts of a cracked tooth
To restore an already broken tooth or a tooth that has been severely worn down
To cover and support a tooth with a large filling when there isn’t a lot of tooth left
To hold a dental bridge in place
To cover miss-shapened or severely discolored teeth
To cover a dental implant
To make a cosmetic modification
For children, a crown may be used on primary (baby) teeth in order to:
Have a tooth that has been so damaged by decay that it can’t support a filling.
Protect the teeth of a hild at high risk for tooth decay, especially when a child has difficulty keeping up with daily oral hygiene.
Decrease the frequency of general anesthesia for children unable because of age, behavior, or medical history to fully cooperate with the requirements of proper dental care.
In such cases, a pediatric dentist is likely to recommend a Stainless-Steel crown.
What Types of Crowns Are Available?
Permanent crowns can be made from stainless steel, all metal (such as gold or another alloy), porcelain-fused-to-metal, all resin, or all ceramic.
To finish reading click the link: http://wb.md/2vnfo0t
Shared from webmd.com