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Bioceramic Root Canal Sealers — NDEB AFK MCQ

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HardEndodonticsBioceramic Root Canal SealersNDEB AFK

Which endodontic sealer has demonstrated the most biocompatible properties and ability to form hydroxyapatite at the sealer-dentin interface?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: E — Bioceramic sealer (e.g., EndoSequence BC Sealer)

Bioceramic sealers (calcium silicate-based, e.g., EndoSequence BC Sealer, BioRoot RCS) have excellent biocompatibility, antimicrobial properties, and the ability to form hydroxyapatite through reaction with dentinal fluid (calcium and phosphate ions). They have a slight expansion upon setting (reducing microleakage), are hydrophilic (setting requires moisture), and have alkaline pH (antibacterial). They represent the newest generation of root canal sealers and are increasingly preferred.

Reference: Torabinejad – Endodontics: Principles and Practice, 6th ed., 2021