Post and Core Selection — NDEB AFK MCQ

Correct answer: D — Custom cast post and core

With minimal remaining coronal tooth structure (<2 mm ferrule), a custom cast post and core provides optimal adaptation to the canal morphology and maximum support for the final crown. The ferrule effect (a 1.5-2 mm collar of sound dentin above the core margin engaged by the crown) is the single most important factor in the biomechanical success of a post-and-core restoration. A fibre post with composite core is preferred when more tooth structure remains (≥2 mm ferrule).

Reference: Shillingburg – Fundamentals of Fixed Prosthodontics, 4th ed., 2012