Abstract:

Introduction: Complete root canal filling material removal is essential for the good outcome of the secondary endodontic treatment. Different methods and hand and rotary instruments have been proposed for better filling removal. Aim: The aim of this article is to review the most commonly used approaches for removal of canal filling materials, analysing the scientific data from the last 10 years mainly. Materials and Methods: Articles related to the problem were reviewed with the aim to summarize the techniques mostly used in retreatment protocols and the effectiveness of the NiTi instruments for removing the root canal filling materials. Conclusion: None of the techniques described in the up-to-date scientific literature is considered 100% effective in removing of root filling materials. Supplementary approaches have to be introduced for more efficient cleaning of the root canal walls, ensuring better prognosis of the endodontic retreatment cases in the daily dental practice.