Rests and Rest Seats in Dentistry
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Questions and Answers

What is the purpose of a primary rest in a partial denture?

  • Prevent impingement of soft tissue and close small spaces between teeth
  • Prevent vertical movement of the prosthesis and transmit forces to supporting teeth (correct)
  • Provide vertical support for the partial denture and maintain occlusal relationship
  • Direct and distribute occlusal loads to abutment teeth and prevent settling of the denture
  • What is the main function of an auxiliary rest in a partial denture?

  • Prevent impingement of soft tissue
  • Maintain occlusal relationship by preventing settling of the denture
  • Provide additional support or indirect retention (correct)
  • Direct and distribute occlusal loads to abutment teeth
  • What is the purpose of a rest seat in relation to a partial denture rest?

  • Restore continuity of the arch and prevent food impaction
  • Maintain components in their planned positions
  • Prepared surface on an abutment to receive the rest (correct)
  • Absorb stress transmitted from the prosthesis without damaging supporting structures
  • How does a rest contribute to preventing damage to supporting structures in a partial denture?

    <p>Directs forces apically down the long axis of the tooth</p> Signup and view all the answers

    Which statement best describes the general purposes of a rest in a partial denture?

    <p>Provide vertical support, direct and distribute occlusal loads, maintain planned positions, prevent impingement of soft tissue, and close small spaces between teeth</p> Signup and view all the answers

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