What is the primary purpose of a post in an endodontically treated tooth?

  • Correct answer

    To retain a core that will support the final restoration

  • To reinforce the root against fracture

  • To seal the canal against coronal leakage

  • To improve the apical seal of the root canal filling

This question is one of 15 in AFK practice: Restorative, prosthodontics and implants. Test yourself on all of them.

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Explanations

  • A post is used only when there is not enough coronal tooth structure to retain a core. It does not strengthen the root; preparing the post space removes dentin and can increase the risk of root fracture.

    Source: Rosenstiel, Land and Walter, Contemporary Fixed Prosthodontics — oneguy

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