Major Connector Rigidity — NDEB AFK MCQ
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Correct answer: D — To transmit and distribute forces evenly across the arch through rigidity
A rigid major connector is essential for proper RPD function because it transmits and distributes occlusal forces across the entire arch, preventing concentration of forces on individual abutment teeth or localised areas of the residual ridge. Rigidity ensures that the RPD functions as a single unit rather than flexing independently. A flexible major connector would allow unilateral loading, potentially overloading abutments and accelerating ridge resorption. The lingual bar, lingual plate, and palatal strap/plate must all be rigid.
Reference: Carr – McCracken's Removable Partial Prosthodontics, 13th ed., 2015