21.  Which of the following acids is commonly used in dental laboratories for “stripping” porcelain?

11.  What materials were used to make dentures during colonial times?

Morbid obesity refers to patients whose body weight is greater than how many pounds over their ideal weight?

23.  What group of people most likely made the dental devices found in early artifacts from many parts of the world? 

17.  When were the first dental gold inlay castings made?

Which organ is responsible for the failure to produce insulin in a patient with type I diabetes?

25.  Oxygen tanks must be chained or strapped to the wall to avoid accidentally knocking them over.

10.  Pumice for repair cases should be changed:

22.  Which of the following acids is usually considered to be the most dangerous acid found in the dental laboratory due to the possibility of major tissue damage?

8.  The surface disinfectant that leaves a residual effect is: