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: Calcium hydroxide is used for
A) Pulp capping
B) Etching enamel
C) Root canal filling
D) Final restoration
✅ Correct Answer: A
Explanation: Calcium hydroxide promotes dentin formation and protects the pulp.
Q: The main component of dental porcelain is
A) Quartz
B) Silica
C) Feldspar
D) Kaolin
✅ Correct Answer: C
Explanation: Feldspar is the major ingredient in dental porcelain for strength and translucency.
Q: Polyether impression material is known for
A) Brittle nature
B) Poor accuracy
C) Low stiffness
D) Dimensional stability
✅ Correct Answer: D
Explanation: Polyether offers high accuracy and excellent dimensional stability.
Q: Resin composites are cured using
A) Mercury vapor
B) Air drying
C) Light curing unit
D) Heat
✅ Correct Answer: C
Explanation: Light-curing units activate polymerization in resin composites.
Q: Abrasive used in polishing amalgam is
A) Pumice
B) Sodium fluoride
C) Zinc oxide
D) Eugenol
✅ Correct Answer: A
Explanation: Pumice is commonly used for polishing amalgam restorations.