Prosthodontics & Occlusion · single question
Why would you close a diastema in the anterior teeth before making an RPD?
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Correct answer: D. Esthetic reasons
- A. RPD stability comes from the design of the framework and the fit of the denture base — closing a diastema does not primarily affect stability.
- B. Diastema closure does not significantly affect the support of an RPD (which comes from abutment teeth and the mucosal foundation).
- C. RPD retention comes from clasps and precision attachments on abutment teeth — not from diastema closure.
- D. The PRIMARY reason to close an anterior diastema before fabricating an RPD is ESTHETIC — to create a natural-looking, harmonious anterior arch appearance. If the RPD is fabricated to the diastema, it will be reproduced in the denture base or artificial teeth, looking unnatural. Closing the diastema first establishes the esthetic baseline for the prosthesis.
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