Pivot tooth

Error creating thumbnail:

Steftzant

Pivot tooth refers to a type of dental prosthesis used in dentistry to replace one or more missing teeth. A pivot tooth, also known as a post and core crown, is a common solution for restoring a tooth that has undergone significant decay, damage, or has been treated with a root canal. This dental procedure involves the placement of a metal or fiber post within the root canal of the tooth, which serves as a support for the core material that is built up around it. The core provides a stable foundation for the final crown restoration that is placed on top to mimic the appearance and function of a natural tooth.

Procedure

The process of installing a pivot tooth typically involves several steps. Initially, the tooth is prepared by removing any decayed tissue and shaping the tooth to receive the post. If the tooth has undergone a root canal, the interior of the tooth will already be hollowed out, making it easier to insert the post. Once the post is securely in place, a core material, usually made of composite resin or dental amalgam, is added around the post to build up the structure of the tooth. Finally, a crown is fabricated and placed over the core and post assembly to restore the tooth's shape, size, and function.

Types of Posts

There are two main types of posts used in pivot tooth restorations: prefabricated and custom. Prefabricated posts are manufactured in various sizes and shapes and are selected to fit the root canal as closely as possible. Custom posts are made in a dental laboratory to match the exact dimensions of the prepared root canal. Custom posts are typically used when the root canal is of an irregular shape or size that cannot be adequately matched by a prefabricated post.

Advantages

Pivot tooth restorations offer several advantages. They provide a method for saving a tooth that might otherwise need to be extracted, thus preserving the patient's natural tooth structure. Additionally, pivot teeth can improve the aesthetic appearance of one's smile and restore the functionality of the damaged tooth, allowing for normal eating and speaking.

Considerations

While pivot tooth restorations can be highly effective, there are considerations to keep in mind. The success of the procedure depends on the amount of remaining tooth structure, the health of the surrounding gum and bone, and the patient's overall oral hygiene. There is also a risk of post failure if the post does not adequately bond with the tooth structure or if there is not enough tooth structure to support the post and core.

Conclusion

Pivot tooth restorations are a valuable option in modern dentistry for restoring damaged or decayed teeth. By understanding the procedure, types of posts, advantages, and considerations, patients can make informed decisions about their dental care in consultation with their dentist.