What does “Intraradicular dental post” mean?
A dental post is a rod placed inside the root of a root-canal-treated tooth to retain the core that rebuilds its upper part. It is considered when the remaining tooth tissue cannot adequately retain the core; it is not needed in every root-canal-treated tooth.
The remaining tooth tissue determines the need
What matters is not just whether root canal treatment was performed, but how much tooth tissue remains above the root. If enough structure remains to retain a core, restoration without a post may be possible. In a heavily damaged tooth, a post may be considered to help keep the core in place.
A post and a root have different roles
The main purpose of a post is core retention, not reinforcement of the root itself. It cannot substitute for a suitable root or for conditions that allow a crown to encircle and engage remaining tooth tissue. Placing a post alone does not guarantee the tooth’s prognosis.
Consider tooth preservation and the whole restoration, not just the material
Posts come in forms such as metal and fibre posts, but a material name alone does not determine the choice. The assessment considers whether the core and final restoration can be retained while preserving remaining tooth tissue, together with bonding and bite conditions. Post placement and placement of the final crown are separate steps.
Frequently Asked Questions
Does every root-canal-treated tooth need a post?
No. A post is considered only when needed after assessing remaining tooth tissue and core retention. Having had root canal treatment is not by itself an indication for a post.
Does a post make the root stronger?
A post is intended to retain the core, not strengthen the root itself. Preserving the remaining tooth tissue and root condition is important.
Questions about dental posts
Learn what the term means and how it relates to your dental condition.
- Preservation of natural teeth
Is there too little remaining tooth structure to retain the core?
Explanation and evidenceClarify why 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 is the plan for the core and crown after the post?
Explanation and evidenceDistinguish the roles of the post, core and final restoration, and clarify how remaining tooth tissue will be preserved.
Leeds Teaching Hospitals NHS Trust · Crowns and posts
