Fibre Post

A tooth that has had root canal treatment and lost most of its crown may not have enough structure left to hold a new one. A fibre post is cemented into the prepared root canal to anchor a build-up, giving the crown something to grip. Fibre flexes similarly to dentine, so it is less likely than a metal post to split the root.

How it's done

1. 01

   Canal preparation

   Part of the root filling is removed to the planned depth, leaving a seal at the tip.

2. 02

   Post selection

   A post is chosen to match the canal shape and cemented with resin.

3. 03

   Core build-up

   Composite is built around the post to recreate a crown preparation.

4. 04

   Crown

   The tooth is then prepared and crowned as normal.

Who it suits

Root-treated teeth with substantial loss of the natural crown.

Where it falls short

A post does not strengthen the tooth — it only retains the build-up. If too little root remains, extraction and an implant is more predictable.

Recovery

None beyond normal crown sensitivity.