498Dental MaterialsMedium
Discolouration of silver alloy is due to________?
ADry corrosion
BWet corrosion
CTarnish
DTarnish and corrosion
Correct answer
D. Tarnish and corrosion
Explanation
The correct answer is Tarnish and corrosion.
Correct answer
D. Tarnish and corrosion
Explanation
The correct answer is Tarnish and corrosion.
For porcelain fused to metal crown, the porcelain should have ________?
Which one of the following is not an objective of trituration?
Torsional force is________?
Porosity in porcelain can be prevented by________?
Which of the following physical property can be used to estimate indirectly the proportional limit of gold alloys?
Accelerators and retarders are used with gypsum products mainly to control________?