Prosthodontics & Occlusion · single question
In a removable partial denture, what is the primary purpose of a non-rigid (stress-broken) connector?
Show answer and explanation
Correct answer: A. To allow some movement and distribute/relieve stress on the abutment
- A. Correct. A non-rigid connector permits limited movement so that occlusal forces are distributed and stress on the terminal abutment is reduced (stress-breaking).
- B. Retention is provided mainly by clasps/attachments, not by the non-rigid connector's primary function.
- C. Esthetics may be a secondary advantage but is not the primary purpose.
- D. Rests are still required for support regardless of connector rigidity.
Note: The source keyed 'retention,' but the recognized PRIMARY purpose of a non-rigid connector is stress distribution/stress-breaking.
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