A. Mulling
B. Carving
C. Condensation
D. Trituration
✅ The correct answer is option C. Condensation.
Dental Materials
What is common in amalgam and ceramics ?
A. More compressive strength but less tensile strength
B. More compressive strength and tensile strength
C. Less compressive strength but more tensile strength
D. Less compressive strength and tensile strength
✅ The correct answer is option B. More compressive strength and tensile strength.
Increased amount of powder in zinc phosphate cement mixture will cause_______________?
A. Decreased strength
B. Decreased film thickness
C. Decreased solubility
D. Increased setting time
✅ The correct answer is option C. Decreased solubility.
The threshold limit value of mercury exposures is_______________?
A. mg / m3
B. 0.05 mg / m3
C. mg / m3
D. mg / m3
✅ The correct answer is option B. 0.05 mg / m3.
To prevent porosity in dental porcelain it should be backed________________?
A. Boric oxide
B. In vacuum
C. For long period
D. Under pressure
✅ The correct answer is option B. In vacuum.
Which of the following show chemical bond with enamel (Calcified tissues)______________?
A. Composites
B. Direct filling resins
C. Polycarboxylate cements
D. BIS-GMA resins in pit and fissure sealants
✅ The correct answer is option C. Polycarboxylate cements.
Secondary caries is least likely seen with_______________?
A. Silicate cement
B. Zinc phosphate
C. Polycarboxylate
D. GIC
✅ The correct answer is option A. Silicate cement.
Which of the following are characteristic feature of high copper amalgam alloy ?
A. Low compressive strength
B. High marginal breakdown
C. Less marginal #
D. High creep
✅ The correct answer is option C. Less marginal #.
Advantage of minimum mercury technique or Eames technique is all Except________________?
A. High strength
B. Sets quickly
C. Needs no squeezing of excess mercury
D. Greater plasticity and adapts well to cavity walls
✅ The correct answer is option D. Greater plasticity and adapts well to cavity walls.
What is the most frequently used restorative material ?
A. Silicate
B. Amalgam
C. Composite
D. Gold
✅ The correct answer is option B. Amalgam.