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: Waxes used in dentistry are classified by
A) Source
B) Flexibility
C) Color
D) Price
✅ Correct Answer: A
Explanation: Dental waxes can be natural (beeswax), synthetic, or mineral-based.
Q: Cohesive gold foil is used in
A) Orthodontics
B) Temporary crowns
C) Veneers
D) Inlays
✅ Correct Answer: D
Explanation: Gold foil provides precise adaptation for small restorations like inlays.
Q: Self-cure resins are activated by
A) Saliva
B) Mixing two pastes
C) Heat only
D) UV light
✅ Correct Answer: B
Explanation: Self-cure resins polymerize chemically when two components are mixed.
Q: Elastic recovery is critical in
A) Impression materials
B) Dental burs
C) Orthodontic wires
D) Finishing strips
✅ Correct Answer: A
Explanation: Impression materials must return to original shape after removal.
Q: Condensation silicones release
A) Ammonia
B) Oxygen
C) Water
D) Hydrogen gas
✅ Correct Answer: D
Explanation: Condensation silicones release hydrogen gas during setting, requiring delayed pouring.