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Root Canal Obturation Techniques — NDEB AFK MCQ

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HardEndodonticsRoot Canal Obturation TechniquesNDEB AFK

Which obturation technique uses thermoplasticised gutta percha delivered through a needle to fill the root canal system three-dimensionally?

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Correct answer: A — Injectable thermoplasticised gutta percha (e.g., Obtura/Elements)

Injectable thermoplasticised gutta percha (e.g., Obtura III, Elements) uses a syringe-like device to heat gutta percha and deliver it as a flowable material through a needle tip into the canal. This allows three-dimensional filling of the canal system including lateral canals and irregularities. It is often used in combination with warm vertical condensation (backfill after a down-pack).

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