Prosthodontics & Occlusion · single question
What is the PRIMARY function of a precision attachment in a removable partial denture?
Show answer and explanation
Correct answer: C. Retention — holding the prosthesis against dislodging forces
- A. Incorrect. Stability against lateral forces is provided by rigid connectors and guide planes.
- B. Incorrect. Support against occlusal forces is provided by the REST (occlusal, cingulum, or incisal), not the precision attachment.
- C. Correct. The PRIMARY purpose of a precision attachment is RETENTION — the interlocking male-female components physically hold the RPD against dislodgement without visible clasps.
- D. Incorrect. Reciprocation counteracts retentive arm tipping and is provided by the reciprocal arm/lingual plate.
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