- by Dr Abhishek Solanki Dr Solankis Dental Clinic
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- Dec 11 2017
What are Dental Crowns?
A dental crown can be defined as 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.
A dental crown is needed in following situations:
- To protect a weak tooth 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 is not a lot of teeth left.
- To hold a dental bridge in place.
- To cover misshaped or severely discolored teeth.
- To cover a dental implant.
- To make a cosmetic modification.
Types of crown
Stainless steel: They are prefabricated crowns that are used on permanent teeth primarily as a temporary measure. The crown protects the tooth or filling while a permanent crown is made from another material. It is commonly used for children to fit over a primary tooth that has been prepared to fix it. The crown covers the entire tooth and protects it from further decay.
Metals Crown: It includes alloys that have a high content of gold or platinum, or base-metal alloys like, cobalt-chromium and nickel-chromium alloys. They withstand biting and chewing forces well and probably last the longest in terms of wear down.
Porcelain-fused-to-metal Crowns: These crowns can be color matched to your adjacent teeth. The crown’s porcelain portion can also chip or break off. They look like normal teeth. However, sometimes the metal underlying the crown’s porcelain can show through as a dark line, especially at the gum line and even more so if your gums recede.
Resin dental Crowns: They are less expensive and more prone to fractures.
All ceramic or all porcelain: They provide more natural color match than any other crown type and may be more suitable for people with metal allergies.
Temporary versus permanent: Temporary crowns are made of an acrylic-based material and can be used as a temporary restoration until a permanent crown is constructed by a lab.
How to take care of Temporary Dental Crowns?
- Avoid sticky, chewy foods, which have the potential of grabbing and pulling off the crown.
- Minimize use of the side of your mouth with the temporary crown.
- Avoid chewing hard foods, which could dislodge or break the crown.
- Slide flossing material out rather than lifting out when cleaning your teeth.
There are onlays and ¾ Crowns which cover the underlying tooth to a lesser extent. On average, dental crowns last between five and 15 years. The lifespan of a crown depends on the amount of “wear and tear” the crown is exposed to.
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