CASE 6 — Same patient with failed bridge and over-prepared teeth. What is the best treatment?

Correct answer: C. Build up the over-prepared teeth with restorative material and re-prepare adequately for a new bridge

• A. RPD is an option but fixed restoration is preferred when feasible.
• B. Extraction and implants is the most invasive option; indicated only if teeth cannot be restored.
• C. The correct approach for over-prepared (inadequate retention form) abutment teeth is composite core build-up to restore proper preparation geometry (adequate taper, height, resistance form), then prepare for a new bridge. The radiographic post/core was stated as adequate in this case.
• D. Redoing a radiographically adequate post/core is unnecessary.