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Failed root canal treatment is best addressed primarily with the provision of repeat endodontic treatment with thorough irrigation under isolation. If a post is present in the root of the tooth it needs to be removed first. This paper is the second in a series of two which provide an overview of techniques for post removal. Specifically designed post removal devices and the removal of fibre posts are described. Post removal device techniques are illustrated with a series of clinical case figures.
Clinical Relevance: Endodontic re-treatment has a more successful long-term outcome than surgical treatment for failed root canal treatment. This approach may involve the removal of existing post restorations.
Article
This is the second paper in a series of two which aims to provide an overview of techniques used for the removal of posts from the root canal system. The first paper discusses the rationale for endodontic re-treatment, pre-operative assessment and factors affecting post removal techniques. This paper provides an overview of some devices specifically designed for post removal. Additionally, the removal of fibre posts is discussed.
Most post removal systems work like corkscrews by creating opposing forces that can withdraw a post from the canal.1
Some of the systems described in this paper employ pulling forces in order to extract posts. Such forces should not be used for well-fitted threaded active (screw) posts as there is an unacceptably high risk of root fracture.1 Despite this, some of the following systems can still be used to remove such posts without use of their pulling component (see below).
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