A crown is an indirect restoration that “caps” the tooth. Crowns are needed for teeth with very large cavities, large failing fillings or cracked teeth. When 50% or more of the chewing surface of the tooth is compromised, a crown is indicated in order to stabilize and protect the tooth. Posterior teeth that are in need of root canals also require crowns to stabilize the teeth. A root canal treated tooth with a large filling will not last very long. Ultimately the tooth will fracture, which could lead to the need for an extraction.
What are crowns made of?
There are several different materials that can be used to restore a tooth with a crown. Most common restorations are all porcelain, zirconia and porcelain fused to metal. Your dentist will discuss your specific case with you to determine the best restoration to maximize both aesthetics and strength.
What is a Bruxzir crown and why have they become so popular for posterior teeth?
Bruxzir crowns are CAD milled crowns that are fabricated from zirconia. They are an aesthetic option for posterior crowns that also provide excellent strength. They are especially recommended for patients who tend to clench and grind their teeth. Check out the awesome video below!
Frequently Asked Questions.
How long does the procedure take?
The process of getting a crown is completed over two appointments. The first appointment is about 90 minutes. At this visit we will numb the area and shape the tooth for the crown. We will take an impression that we send to the lab to fabricate your permanent crown. Prior to leaving, we will make a temporary crown to protect the tooth.
The second appointment is usually completed without anesthetic. This visit typically takes about 30 minutes. At this visit we will remove your temporary and deliver your permanent crown.
How long does it take for the permanent crown to return from the lab?
It typically takes 2 weeks for the permanent crown to return.
What if my temporary crown comes off while I’m waiting for the permanent crown?
It’s important to contact us ASAP if your temporary crown comes off. Even if the tooth isn’t hurting, it is important to keep the exposed tooth structure covered by your temporary crown. The teeth will also shift if the temporary crown isn’t in place which will result in your permanent crown not fitting. As a result, we have to reshape the tooth and take a new impression for a new crown.
If you can’t make it back into the office we recommend buying temporary dental cement from CVS or Walgreens.
Do crowns come off?
Crowns are cemented to your teeth with very strong dental adhesives and cements. They are not meant to come out. However, older crowns will sometime lose their cement seal and come off. As long as the underlying tooth is still healthy, we can recement the crown back in place for you.