Which component of a removable partial denture primarily provides vertical support against movement toward the tissue?

  • Correct answer

    Rest

  • Retentive clasp arm

  • Reciprocal clasp arm

  • Proximal plate on a guiding plane

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

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Explanations

  • Rests sit in prepared rest seats and direct occlusal forces along the long axis of abutment teeth, resisting tissueward movement. The retentive arm resists dislodgement away from the tissues, not tissueward movement.

    Source: Carr and Brown, McCracken's Removable Partial Prosthodontics — oneguy

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