Prosthodontics & Occlusion · single question

The ideal occlusal scheme for a fully dentate patient is:

  1. Lingualized occlusion
  2. Canine-guided occlusion (mutually protected)
  3. Centric relation-coincident occlusion
  4. Bilateral balanced occlusion (BBO)
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Correct answer: B. Canine-guided occlusion (mutually protected)

  • A. Lingualized occlusion is used for complete dentures and some RPDs to reduce denture base forces — not the standard for a fully dentate patient.
  • B. Correct. For a dentate patient, canine-guided (mutually protected) occlusion is ideal: canines guide lateral excursions while posterior teeth provide vertical support in MIP. This protects posterior teeth from lateral forces during excursion.
  • C. CR-coincident occlusion describes when CR and MIP coincide — this is desirable but describes a specific finding, not an occlusal scheme.
  • D. Bilateral balanced occlusion (BBO) is the ideal scheme for COMPLETE DENTURES — all posterior teeth contact bilaterally in all excursive movements to stabilize the denture. It is not ideal for natural dentition.

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