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Prosthodontics & Occlusion · single question

A patient has severely cavitated teeth reduced to root tips at #7-9. What will be the most challenging aspect of fabricating complete dentures?

  1. Supraerupted opposing teeth altering the occlusal plane
  2. Absence of a retromolar pad
  3. Excessive interocclusal space
  4. Presence of a maxillary torus
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Correct answer: A. Supraerupted opposing teeth altering the occlusal plane

  • A. Correct. Long-term partial edentulism allows opposing teeth to supraerupt, distorting the occlusal plane and consuming the vertical space needed for denture teeth and acrylic. Correction requires enameloplasty, extraction, or surgical alveoloplasty before fabrication.
  • B. The retromolar pad is not lost with tooth loss and remains as a key posterior landmark.
  • C. Excess interocclusal space is easier to manage than insufficient space.
  • D. A torus is a manageable and predictable issue via relief or surgical reduction.

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