Crowns, also known as caps, are a part of restorative dentistry wherein a cap is placed over the tooth in order to improve its shape, color, and overall appearance.
A dental crown is commonly used in the following instances:
- To protect a tooth that has weakened from decay, aging, and other factors
- To protect a root filling where only a small portion of the tooth is left
- To restore a tooth that has been worn down, chipped or fractured
- To support dental bridges
- To cover dental implants
- To improve the appearance of a tooth that has been discolored or misshapen
What are dental crowns made of?
Dental crowns can be made from one or the following materials and fashions:
Bonded crowns: A porcelain material is bonded to a base of precious metal. These are commonly known as bonded crowns.
Porcelain crowns: The entire crown is made of porcelain. Thanks to its natural appearance, this type of crown are often used in the front teeth. However, crowns made of only porcelain are not as strong as bonded crowns.
Glass crowns: used in any part of the mouth, glass crowns can also have a very natural appearance.
Gold-alloy crowns: These crowns use gold as filling, and is nowadays mixed with other metal alloys to increase strength.
All-ceramic crowns: Crowns made entirely from ceramic and with no metal bonding. This type of crown is quite popular since they have the strength of a bonded crown and the natural appearance of porcelain.
What is the procedure for dental crowns?
Once you have decided to get dental crowns, one of our dentists will take several X-rays in order to examine the condition of the tooth in question, its roots and the surrounding bone to ensure they are healthy enough for a crown. If the tooth is afflicted with decay or infection, a root canal treatment is usually performed first.
Once the crown is ready to be a placed on the tooth, our dentist will first reshape your tooth by slightly removing enamel to make room for the crown. The amount of tooth to be removed will depend on the size of the crown. In the event that not a lot of tooth is left due to decay, a filling material may be used to restore the tooth to its full form.
Next, an impression of the tooth is created from the paste and is sent to a dental lab where the crown will be custom-made. The manufacturing of the crown usually takes two to three weeks before it is sent back to your dentist’s office. During this time, you will receive a temporary crown in order to cover the prepared tooth. Once the permanent crown is ready, the temporary one is removed and replaced with it.