Why is it necessary to place a post and core to make a dental crown?
The post and core is an important part for installing a prosthetic crown to replace a tooth that has been badly destroyed, usually as a result of decay or fractures. In cases where it is possible to preserve the root with root canal treatment, the core is installed inside the root to support the prosthetic crown.
The core is the internal reinforcement part of a dental crown
This is an important stage in providing support and strength to the porcelain dental crown. See more about dental core materials. If the crown were installed without a core, the prosthesis would probably not be able to withstand the masticatory effort and consequently its duration would be shorter.
See also this article on our blog which talks a little more about root canal treatment, core and porcelain crown. Today, the reinforcement core (dental post) can be made from various types of materials: from metal to zirconia, fiberglass and carbon fiber.
The choice of material depends on a number of factors, such as the location in the dental arch and the masticatory load that the crown will be subjected to.
The metal core is considered more resistant (especially suitable for the most hidden and used area of the arch), while zirconia is considered more aesthetic because it is white (suitable for the most visible area, i.e. the front of the arch).
The prosthetic crown can be made from two different materials: resin (plastic with a metal core) or porcelain (with a metal or aesthetic core). Porcelain is more resistant and aesthetic than resin.
Learn more about computer-designed crowns.
How treatment is carried out:
- In some cases, root canal treatment is performed to preserve the root;
- The root and tooth are prepared to receive the core;
- When made of metal, the impression is taken directly inside the root;
- When in zirconia, the post is cemented into the root;
- A core mold is taken to prepare the prosthetic crown. At ImplArt, this mold can be made conventionally (with putty) or digitally using intraoral scanners;
- The crown is installed on the core;
- The duration of the procedure varies, as it depends on the complexity of each case. For some people it can be carried out in a Day Clinic.
Advantages of the technique:
- The dental crown restores chewing ability as well as the aesthetics of the smile;
- The appearance of this type of prosthesis is very similar to natural teeth, so it is indistinguishable when fitted;
- Your smile will be beautiful and complete again, free of unsightly spots such as cavities, metal restorations, absences, etc;
- The roots are protected and healthy;
Dentures are very durable, but they may need to be replaced after a few years. This need is verified during regular visits to the dentist’s office.
In cases where teeth are weakened and it is no longer possible to rebuild the tooth with a crown, dental implants are recommended. If you have any questions, please make an appointment or contact us. We’ll be happy to help you.
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