Prosthodontics & Occlusion · patient case question
Incisal guidance that disoccludes the posterior teeth in protrusion is a feature of which occlusal scheme?
Patient case: Polymerisation stress, irrigation and occlusal guidance
Scenario: Three items.
Show answer and explanation
Correct answer: C. Mutually protected occlusion
- A. In group function, several teeth on the working side share contact during lateral excursion — an accepted alternative, often where canine guidance has been lost to wear.
- B. Cross-arch balance is the same concept applied across the arch and is again a complete-denture goal.
- C. Correct. In mutually protected (canine-protected) occlusion, the anterior teeth disocclude the posteriors in excursions, while in centric the posterior teeth take the load and protect the anteriors.
- D. Balanced occlusion means simultaneous contact on both working and non-working sides. It is desirable in complete dentures for stability but is not the natural dentition scheme.
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