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Fixed partial denture abutment selection — NDEB AFK MCQ

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HardProsthodonticsFixed partial denture abutment selectionNDEB AFK

A patient is missing tooth 2.5 and requests a conventional fixed partial denture. Teeth 2.4 and 2.6 have short clinical crowns, large restorations, and reduced periodontal support. What is the most important consideration?

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

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Correct answer: A — Combined abutment support and crown-root ratio

A fixed partial denture depends on adequate abutment support, crown-root ratio, periodontal stability, and occlusal load control. Shade is important but comes after determining whether the abutments can biologically and mechanically support the prosthesis. The pearl is that replacing one tooth can overload two compromised teeth if abutment selection is poor.

Reference: NDEB prosthodontic reference texts; NDEB KSAs 2024