To what landmark should the posterior border of a maxillary complete denture extend?

  • Correct answer

    The vibrating line

  • The posterior edge of the palatine bones

  • The palatine rugae

  • The midpoint of the soft palate

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

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Explanations

  • The posterior border should end at the vibrating line, the junction of the movable and immovable soft palate, where the posterior palatal seal is placed. Extending to the middle of the soft palate would interfere with function and cause discomfort or gagging.

    Source: Zarb et al., Prosthodontic Treatment for Edentulous Patients — oneguy

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