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Mutually Protected Occlusion — NDEB AFK MCQ

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ModerateDental Anatomy & OcclusionMutually Protected OcclusionNDEB AFK

Which phase of the gait cycle corresponds to a pattern of walking where the heel strikes first? Similarly, which pattern of tooth contact initiates in the 'mutually protected occlusion' concept?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: B — Cuspid-protected lateral guidance with posterior support in centric — anterior teeth protect posteriors in excursion; posteriors protect anteriors in centric

Mutually protected occlusion is the ideal occlusal scheme for the natural dentition: (1) In centric occlusion (maximum intercuspation), the posterior teeth bear the occlusal load, protecting the anterior teeth from excessive force; (2) In excursive movements (protrusion and lateral excursion), the anterior teeth (canines and/or incisors) guide the mandible, immediately disoccluding all posterior teeth, protecting them from damaging lateral and protrusive forces. This mutual protection optimises force distribution.

Reference: Okeson – Management of Temporomandibular Disorders, 8th ed., 2019