Dental Materials MCQs
Dental Materials MCQs cover properties, manipulation, and clinical use of dental amalgam, composites, glass ionomers, impression materials, and adhesives, helping BDS and MDCAT students prepare effectively for exams and dental practice knowledge.
Q: Resin-modified GIC offers improved
A) Shrinkage
B) Solubility
C) Flexural strength
D) Brittleness
✅ Correct Answer: C
Explanation: Resin-modified glass ionomers show better flexural strength and adhesion.
Q: Most radiopaque dental material is
A) Amalgam
B) Composite
C) GIC
D) Porcelain
✅ Correct Answer: A
Explanation: Amalgam appears highly radiopaque due to its metallic content.
Q: Baseplate wax is mainly used for
A) Final impressions
B) Carving teeth
C) Root canal filling
D) Bite registration
✅ Correct Answer: D
Explanation: Baseplate wax helps establish vertical dimension in prosthetics.
Q: The function of potassium sulfate in gypsum is to
A) Improve strength
B) Increase expansion
C) Retard setting
D) Reduce setting time
✅ Correct Answer: D
Explanation: Potassium sulfate acts as an accelerator in gypsum products.
Q: Flow property is highest in
A) Inlay wax
B) Baseplate wax
C) Sticky wax
D) Bite wax
✅ Correct Answer: A
Explanation: Inlay wax has superior flow at elevated temperatures for accuracy.