Prosthodontics & Occlusion · single question
The movement from protrusion back to maximum intercuspation (MIP) is characterized by which occlusal relationship?
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Correct answer: D. Cusp-to-fossae relationship
Maximum intercuspation in a Class I dentition features cusp-to-fossae relationships — the position returned to from protrusion.
- A. Cusp-to-cusp relationship describes edge-to-edge or Class II/III relationships — not stable MIP.
- B. Edge-to-edge is a specific malocclusion or transient contact, not the relationship in MIP.
- C. Group function is an occlusal scheme for lateral excursions, not the relationship in MIP.
- D. CORRECT. Maximum intercuspation = cusp-to-fossae. When returning from protrusion, teeth seat back into this stable relationship where cusps occlude in opposing fossae.
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