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Updated: Apr 11, 2026

Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing
Published on: July 3, 2020
Marginal adaptation and bond strength of novel resin-based sealers compared with traditional epoxy-resin sealers
Waleed Ali F Alshadidi1, Adamya Shakti Nigam2, Shankar S3
1Department of Endodontics, Mazayalian Dental complex Clinic Abha, Saudi Arabia.
Abstract:
The long term quality of the treatment of root canals is reached when a hermetic seal is obtained, but the traditional epoxy-resin sealers tend to demonstrate poor adhesion and poor adaptation. Therefore, it is of interest to compared resin-based sealer made of methacrylate to the existing epoxy-resin and calcium silicate-based sealer in terms of bond strength and marginal adaptation. Ninety human teeth were extracted, obturated, and tested in terms of push-out bond strength and marginal gaps that were assessed by SEM. The experimental sealer of methacrylate resin showed high bond strength and marginal adaptation compared with all groups (p=0.001). Thus, we show that it has a better sealing capacity and may lead to better clinical outcome in endodontic treatment.
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