Maximum FPD Pontic Span — NDEB AFK MCQ

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ModerateProsthodonticsMaximum FPD Pontic SpanNDEB AFK

What is the recommended maximum number of posterior teeth (pontics) that should be replaced by a conventional fixed partial denture (bridge)?

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Correct answer: A — 2 pontics (following Ante's law)

Conventional FPDs should generally replace no more than 2 consecutive missing posterior teeth (2 pontics), provided the abutment teeth have adequate periodontal support to satisfy Ante's law (combined root surface area of abutments ≥ root surface area of teeth being replaced). Longer spans (3+ pontics) are associated with increased flexion, higher failure rates, and greater risk of abutment overload. Implant-supported prostheses or RPDs are preferred for longer edentulous spans.

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