Which is not present in porcelain________________?

Related Mcqs:

Dicor restoration is_______________?

A. Two coloured restorations B. Heat pressed ceramics C. Castabel ceramic D. None of the above...

In method of firing: A shorter firing period at a higher temperature is considered better_______________?

A. A large time period at a lower temperature is preferred B. A long firing period at a very high temperature is preferred C. A short firing period at a very low temperature is preferred D. none of these...

The most toxic form of mercury is_________________?

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

Crocus cloth is________________?

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

To prevent porosity in dental porcelain it should be backed________________?

A. Boric oxide B. In vacuum C. For long period D. Under pressure...