Centric Relation Assessment — NDEB AFK MCQ

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HardDental Anatomy & OcclusionCentric Relation AssessmentNDEB AFK

Which test is used to evaluate the discrepancy between centric relation (CR) and maximum intercuspation (MI) in occlusal analysis?

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Correct answer: C — Leaf gauge (bimanual manipulation)

The leaf gauge (Long/Lucia jig) and bimanual manipulation (Dawson technique) are used to guide the mandible into centric relation (CR) — the musculoskeletally stable position of the condyles in the glenoid fossa. The patient then closes on thin articulating paper or shim stock to identify the initial tooth contact (premature contact/deflective contact). The slide from CR to MI is assessed for direction and magnitude, which is important for occlusal splint fabrication, restorative planning, and TMD management.

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