Fixed Prosthodontics Mcqs -

C) Sanitary Explanation: Sanitary pontic has no ridge contact, easy to clean; ovate is more esthetic but requires soft tissue concavity. Q4. Which cement is most commonly used for final cementation of all-ceramic crowns? A) Zinc phosphate B) Glass ionomer C) Resin-modified glass ionomer D) Resin cement (with adhesive system)

D) Resin cement Explanation: All-ceramic restorations (especially E-max) bond via resin cements to improve fracture resistance. Q5. A non-rigid connector in a fixed bridge is indicated when: A) Abutments are periodontally weak B) Pier abutment is present C) Bridge span is short D) Porcelain margin is used fixed prosthodontics mcqs

A) Chamfer Explanation: Chamfer provides adequate bulk of metal at margin + good retention; shoulder weakens metal margin; knife-edge is least retentive. Q2. The primary purpose of a ferrule in crown preparation is: A) Esthetics B) Prevent root fracture C) Reduce tooth sensitivity D) Improve retention of provisional C) Sanitary Explanation: Sanitary pontic has no ridge