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: Retarders in gypsum products include
A) Sodium chloride
B) Aluminum sulfate
C) K2SO4
D) Borax
✅ Correct Answer: D
Explanation: Borax is commonly used to delay gypsum setting.
Q: Type IV gypsum is also called
A) Die stone
B) Impression stone
C) Stone
D) Plaster
✅ Correct Answer: A
Explanation: Type IV is known as die stone due to its high strength and low expansion.
Q: Stainless steel crowns are most commonly used in
A) Orthodontics
B) Prosthodontics
C) Pediatric dentistry
D) Adults
✅ Correct Answer: C
Explanation: Stainless steel crowns are preferred for children’s posterior teeth.
Q: Viscosity of a fluid is defined as
A) Elasticity
B) Volume
C) Rigidity
D) Resistance to flow
✅ Correct Answer: D
Explanation: Viscosity measures a fluid’s resistance to flowing.
Q: Wax patterns should be invested immediately to
A) Avoid distortion
B) Prevent shrinkage
C) Increase strength
D) Enhance setting
✅ Correct Answer: A
Explanation: Immediate investing prevents distortion from stress relaxation.