Dental Crown (Crowns)
A dental crown is a restoration of a tooth to its health giving it a natural shape. Crowns are often applied when a cavity threatens the health of the entire tooth. There are different types of crown fabrication involving different materials such as ceramic, metal-ceramic and gold.
Who is a good candidate?
A dental crown is an ideal way to restore teeth that have been broken, or have been weakened by decay or a very large filling. A crown could be used for a number of other reasons, for example:
- If you have have a discoloured filling and would like to improve the appearance of the tooth.
- you may have had a root filling which may need a crown to protect what is left of the tooth.
- it may help hold a bridge or denture firmly in place.
- To cover a dental implant
- To make a cosmetic modification
Pre Operative Assessment
- You will be asked to prepare the digital X-Ray film to send to dentist’s first consideration.
- The photos of your teeth (with your smile or your teeth) will be asked to in association with digital X-Ray film.
How is the procedure performed?
A dental crown is a tooth-shaped “cap” that is placed over a tooth – covering the tooth to restore its shape and size, strength, and/or to improve its appearance.
A dental crown may be needed to protect a weak tooth from breaking, or restore an already broken tooth, cover and support a tooth with a large filling, hold a dental bridge in place, cover misshaped or severely discolored teeth, and to cover a dental implant.
Examining and preparing the tooth: at the first visit, the dentist may take a few x-rays to check the roots of the tooth receiving the crown and surrounding bone.
If the tooth has extensive decay or if there is a risk of infection or injury to the tooth’s pulp, a root canal treatment may first be performed.’
Receiving the permanent dental crown: at your second visit, the doctor will check the fit and color of the permanent crown. If everything is acceptable, a local anesthetic will be used to numb the tooth and the new crown is permanently cemented in place.
- Metals used in crowns included alloys (e.g. palladium), gold alloy or a base-metal alloy (e.g. nickel or chromium). Unlike other crown types, less tooth structure, less tooth structure needs to be removed when using metal crowns. Metal crowns are resilient, being able to withstand chewing and biting forces well and in terms of wear down, usually last the longest.
- Porcelain-fused-to-metal dental crowns are able to be colour matched to the neighbouring teeth (unlike metallic crowns). However, with this crowns as opposed to resin or metal crowns, opposing teeth take on more wear. The porcelain crown portion can also break off or chip. Aside all-ceramic crowns, porcelain-fused-to-metal crowns appear most like normal teeth. However, at times the metal underneath the crown’s porcelain can show through as a dark line, particularly at the gum. This type of crown can be a good choice for back or front teeth.
- All-porcelain dental crowns offer the best natural colour match. However, they wear down opposing teeth somewhat more than metal or resin crowns and are not as strong as porcelain-fused-to-metal crowns. All-ceramic crowns are a sound choice for front teeth.
There is risk in all surgical procedures and it is important that you are aware of the risks involved in your procedure before going ahead with the surgery. During your appointments you should discuss any concerns with your surgeon and not be afraid to ask questions. Your surgery will be unable to proceed unless you sign a pre-surgery consent form.
Note: This information acts as a guide to your possible treatment. Your individual concerns and specific medical history will need to be shared and discussed with your surgeon during your initial consultation.