The effect of heat on bond strength and bioactivity of calcium silicate-based sealers. A narrative review

Document Type : Original Article

Authors

1 Professor of Endodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt

2 Lecturer of Endodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt

3 B.D.S, Faculty of Dentistry, Ain Shams University, Cairo, Egypt

Abstract

This study aims to evaluate the effect of heat on the bond strength and bioactivity of Neosealer, a calcium silicate-based root canal sealer, compared with AH Plus, a resin-based sealer. Root canal obturation is crucial in preventing reinfection by ensuring a hermetic seal. Neosealer has gained popularity due to its bioactive properties, including its ability to form hydroxyapatite when exposed to biological fluids. AH Plus, known for its excellent physical properties, is commonly used in endodontics. In this study, various obturation techniques and heat application were applied to root canal samples, and the bond strength to root dentin was evaluated. Additionally, the bioactivity of the sealers was assessed by measuring the formation of apatite on their surfaces. The study aims to explore the potential impact of heat treatment on the performance of these sealers and provide insights into how different obturation techniques may affect their bond strength and bioactivity. These findings could lead to an improved understanding of root canal sealing materials and offer guidance for clinical decision-making in endodontic therapy.

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Egyptian Dental Journal
Volume 71, Issue 3 - Serial Number 5
Conservative Dentistry and Endodontics
July 2025
Pages 2669-2683

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