What does “Post and core” mean?
“Post and core” describes two parts used to rebuild a badly damaged, root-canal-treated tooth: a post inside the root and a core that rebuilds the crown portion. The post retains the core, and the core provides the shape needed for the final restoration.
The post and core work together to rebuild the tooth
A post inside the root canal may be used when too little crown tissue remains to retain the core. The core replaces the damaged or missing upper portion to provide a form for the final restoration. If enough tooth tissue remains, a core without a post may be possible.
It is not a device for strengthening the root
The main reason for placing a post is to retain the core. Enlarging the inside of the root to fit a post does not make the root stronger, so unnecessary tissue removal should be avoided. The condition of the root and whether the crown can encircle remaining tooth tissue are considered together.
Plan through to the final crown
Completing a post and core is different from placing the final crown. Planning includes what restoration will cover the core, how to protect remaining tooth tissue and how to adjust the bite. A material name alone does not determine whether the tooth can be restored or how long it will last.
Frequently Asked Questions
Does a core always require a post?
No. If the remaining tooth can retain the core adequately, it can be built without a post. The need for a post is assessed separately to obtain the required retention.
Does completing the post and core also finish crown treatment?
No. A post and core rebuild the tooth for its final restoration; crown placement is a separate stage. Clarify the planned final restoration and the steps still needed.
Questions about a post and core
Learn what the term means and how it relates to your dental condition.
- Preservation of natural teeth
Why would a core alone be difficult to retain?
Explanation and evidenceAsk whether a post is needed based on the remaining tooth walls and extent of damage.
European Society of Endodontology · Position statement on restoring root-filled teeth - Sufficient understanding
What remaining tooth tissue will the final crown encircle?
Explanation and evidenceConsider the remaining tissue and support for the final restoration, as well as whether a post is present.
European Society of Endodontology · Position statement on restoring root-filled teeth
