Crowns are full coverage restorations that are used to cover a tooth that is likely to break or is too damaged to be corrected with a traditional filling. Some call it a cap or a helmet or a shield for your tooth.
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.SPEAK WITH A DOCTOR
A crown is basically a cap for a damaged tooth. It can be made from a variety of materials, including metal or porcelain.
You might have a crown over a molar that rarely shows, except when you yawn widely, or you might have crowns on your front teeth that were specifically designed to match your other teeth.
Several factors are important to consider when choosing a crown, including:
If you have a large cavity that’s too big for a filling, it may be time for a crown. You may also need a crown if your tooth is:
Crowns are also recommended following a root canal on a tooth, because the tooth is more fragile and needs protection.
Preparing a tooth for a crown usually requires two visits to the dentist -- the first step involves examining and preparing the tooth, the second visit involves placement of the permanent crown.First visit: Examining and preparing the tooth
At the first visit in preparation for a crown, your 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.
Before the process of making a crown begins, your dentist will anesthetize (numb) the tooth and the gum tissue around the tooth. Next, the tooth receiving the crown is reshaped along the chewing surface and sides to make room for the crown. The amount removed depends on the type of crown used. If, on the other hand, a large area of the tooth is missing (due to decay or damage), your dentist will use filling material to "build up" the tooth to support the crown.Second visit: Receiving the permanent dental crown
At the second visit, your dentist will remove the temporary crown and 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.