Clinical Trial of a New Soft Resin Endodontic Obturaton System (Resilon™)

Endodontically treated teeth are widely considered to be more susceptible to fracture than vital teeth. The critical factors for success of ideal root canal fill are that it should: Entomb existing bacteria, prevent coronal leakage of bacteria, and strengthen the root. However, canal filled with gutta-percha even by the most technically proficient operator will not result in a seal and strengthen the root (relatively) dependable during the long term. Recently, soft resin endodontic obturation (resilon), a bondable material made of polymer of polyester fillers and radiopacifier in a soft resin matrix system, has been proven by research to resist leakage significantly better (six times better) than gutta-percha, while strengthening the root by more than 20%. It can be handled like gutta-percha and thermoplasticized at lower temperature, however, it also biocompatible and retrievable.  The objective of this presentation is to examine the clinical performance of the new soft resin endodontic obturation system (resilon). Clinical trails of the new soft resin obturation system were conducted. Several cases were selected randomly, where the effected teeth were instrumented and obturated utilizing the lateral condensation teclmique applying the new soft resin endodontic obturation system (resilon) following the manufacture's recommendation. Although the clinical performance of the new thermoplastic obturation system may be considered a promising endodontic obturation system, further clinical investigation is advisable.