Prosthodontics & Occlusion · single question
Same case. What is the main ADVANTAGE of a non-rigid (precision) connector over conventional clasps?
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Correct answer: D. Esthetic
The main ADVANTAGE of a precision/non-rigid attachment over conventional clasp-retained RPDs is ESTHETICS. Precision attachments are internal devices housed within the crown of the abutment tooth — they are completely INVISIBLE from outside. There are no metal clasps showing when the patient smiles. This makes them significantly more esthetic, especially in the anterior and premolar regions.
- A. INCORRECT. Support is provided by rest seats regardless of clasp or precision attachment design.
- B. INCORRECT. While precision attachments do provide retention, the same purpose is served by clasps. The ADVANTAGE over clasps is esthetics, not retention alone.
- C. INCORRECT. Stability is similar or comparable between clasp-retained and precision attachment RPDs.
- D. CORRECT. The primary ADVANTAGE of precision attachments over conventional clasps is ESTHETIC — no visible metal clasps, creating a more natural-appearing restoration, especially important for anterior and premolar abutments.
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