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: Porosity in acrylic resin dentures results from
A) Air entrapment
B) High temperature
C) Low polymerization
D) Excess pressure
✅ Correct Answer: A
Explanation: Entrapped air during processing leads to porosity in acrylics.
Q: Zinc oxide eugenol is primarily used as
A) Permanent cement
B) Impression material
C) Temporary filling
D) Etchant
✅ Correct Answer: C
Explanation: ZOE is commonly used for temporary restorations and fillings.
Q: Tensile strength is highest in
A) Composite
B) Amalgam
C) Polyether
D) Porcelain
✅ Correct Answer: A
Explanation: Composite materials possess superior tensile strength among options.
Q: Flexibility of impression materials is lowest in
A) Polyether
B) Alginate
C) Agar
D) Silicone
✅ Correct Answer: A
Explanation: Polyether materials are rigid and have the least flexibility.
Q: The monomer in cold-cure acrylic resin is
A) Methyl methacrylate
B) TEGDMA
C) Hydroquinone
D) Benzoyl peroxide
✅ Correct Answer: A
Explanation: Methyl methacrylate acts as the main monomer in acrylics.