Chemically, bonding root canal filling gives a greater apical and coronal seal. It is resilon, which is a thermoplastic synthetic polymer-based on polymers of polyester containing bioactive glass and radiopaque filler introduced in 2004. Electronic literature was done by searching two international databases, PubMed, and Google Scholar, to find out most of the articles that were relevant to resilon. Searching was done by 3 reviewers to collect 41 investigated articles between 2000 and 2019, using the following keywords Resilon and Resin based root canal filling. Within different tests to measure micro leakage and sealing ability of resilon. Clinical trials and Histology are the most reliable to confirm the biocompatibility and sealing ability of resilon. Literatures showed that resilon (RS) obturation had adverse results when compared to gutta-percha (GP). Compared to teeth obturated with GP, teeth obturated with RS had 5.7 times increased likelihood of failure. RS showed outstanding properties; sealing ability is promising, performed using different methods. However, the push-out test is controversial compared with GP. The mono-block is a unique feature of such material that improves root fracture resistance. However, clinically RS has more than five times failure compared to GP. Therefore, periapical pathosis and illness are still persistent post-operatively.
Key words: Resilon, root canal filling, micro leakage, fracture resistant, retreatment
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