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Dental Ceramics & Miscellaneous

Coefficient of thermal expansion of metal-ceramic alloys is________________?

July 31, 2021July 23, 2019 by admin
Coefficient of thermal expansion of metal-ceramic alloys is________________?

A. Same as porcelain
B. More than porcelain
C. Less than porcelain
D. More than or equal to porcelain but not less

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

Stage recognized in the firing of dental porcelain given below. Which of state is not correct ?

July 31, 2021July 23, 2019 by admin
Stage recognized in the firing of dental porcelain given below. Which of state is not correct ?

A. Cold stage bisque
B. Low bisque
C. Medium bisque
D. High bisque

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

The maximum shrinkage during firing proces in ceramic occurs in__________________?

July 31, 2021July 23, 2019 by admin
The maximum shrinkage during firing proces in ceramic occurs in__________________?

A. High Bisque stage
B. Low Bisque stage
C. Medium Bisque stage
D. Fusion stage

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

Super abrasive is________________?

July 31, 2021July 23, 2019 by admin
Super abrasive is________________?

A. Sand
B. Silicon arbide
C. Diamond
D. Aluminum oxide

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

The preferred material for repair of fractured denture base is______________?

July 31, 2021July 23, 2019 by admin
The preferred material for repair of fractured denture base is______________?

A. Chemically cure resin
B. Heat curve resin
C. Light cure resin
D. Vinyl resin

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

Dispersion of crystalline phase to strengthen ceramics results in_________________?

July 31, 2021July 23, 2019 by admin
Dispersion of crystalline phase to strengthen ceramics results in_________________?

A. dispersed porcelain
B. Glazed porcelain
C. aluminium porcelain
D. All of the above

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

For porcelain fused to metal crown, the porcelain should have ______________?

July 31, 2021July 23, 2019 by admin
For porcelain fused to metal crown, the porcelain should have ______________?

A. High fusion expansion
B. High fusion temperature
C. Linear coefficient of thermal expansion less than that of metal
D. Linear coefficient of thermal expansion more than that of metal

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

The ideal temperature of water bath for softening fluid wax is about________________?

July 31, 2021July 23, 2019 by admin
The ideal temperature of water bath for softening fluid wax is about________________?

A. 51 to 54 degree F
B. 51 to 54 degree C
C. 70 to 75 degree F
D. 70 to 75 degree C

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

Crocus cloth is________________?

July 31, 2021July 23, 2019 by admin
Crocus cloth is________________?

A. Emery
B. Garnet
C. Pumice
D. Rouge

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs

The most toxic form of mercury is_________________?

July 31, 2021July 23, 2019 by admin
The most toxic form of mercury is_________________?

A. Methyl and ethyl mercury
B. Mercury vapour
C. Inorganic mercury forms
D. Mercury sulphide

Categories Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs
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