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: The most commonly used material for fabrication of custom trays in complete denture procedures is auto-polymerizing acrylic resin
A) Light-cure composite
B) Auto-polymerizing acrylic
C) Thermoplastic sheet
D) Polycarbonate
Q: During the setting of gypsum, the chemical reaction leads to formation of interlocking needle-like crystals of calcium sulfate dihydrate
A) Expansion
B) Crystallization
C) Heat absorption
D) Water loss
Q: The main disadvantage of using amalgam as a restorative material is its unaesthetic metallic appearance
A) Metallic color
B) High cost
C) Unpleasant odor
D) Brittleness
Q: Etching of enamel with phosphoric acid increases surface energy and creates micro-porosities for better bonding
A) Reduces bonding
B) Prevents drying
C) Promotes leakage
D) Enhances retention
Q: In glass ionomer cements, fluoride release helps in the prevention of secondary caries around restorations
A) Reduces bond
B) Increases acidity
C) Prevents caries
D) Weakens cement