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Cusp fracture in endodontically treated tooth — NDEB AFK MCQ

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HardProsthodonticsCusp fracture in endodontically treated toothNDEB AFK

A root-treated maxillary premolar with a large MOD restoration fractures a palatal cusp during function. Remaining tooth structure is thin but the root filling is satisfactory and there is no apical disease. What is the most appropriate treatment?

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Correct answer: A — Cuspal coverage restoration

A root-treated premolar with substantial loss of marginal ridges and cusp fracture needs cuspal coverage if restorable. A small occlusal composite would not protect weakened cusps under function. The pearl is that posterior endodontically treated teeth often fail structurally rather than endodontically when cuspal coverage is omitted.

Reference: Restorative/prosthodontic reference texts; NDEB KSAs 2024