A. Impurities in gold
B. Improper venting
C. A and B
D. None of the above
Dental Materials
Dental Materials Mcqs for preparation. These Mcqs are helpful for Medical students. Dental Materials Multiple Choice Questions (MCQ) for entrance examinations and other competitive examinations for all Experienced, Freshers and Students.
A. High gold
B. Low gold
C. Palladium – Ag
D. Ni – Cr
A. Improve bonding
B. Harden the metal ceramic Ag-Pd alloy
C. Both A and B
D. None of the above
A. Iowa wax
B. Modeling wax
C. Green stick wax
D. None of the above
A. More porous investment in the mould
B. Narrow sprue diameter
C. Hollow sprue pin
D. Large reservoir
A. Shrinkage of alloy on cooling
B. Investment breakdown
C. Incomplete wax elimination
D. Incomplete gas elimination
A. 700°C
B. 1,300°C
C. 1,063°C
D. 900°C
A. 30% cobalt and 60% chrominum
B. 60% cobalt and 30% chrominum
C. 1% palladium
D. 20% gold
A. Ti 6Al 4V
B. Ti 5Al 4V
C. Ti 5Al 5V
D. Ti 6Al 6V
A. Decrease flow
B. Continuous expansion
C. Relaxation of the internal stresses
D. Water loss
