24.  Skulls found and dated to Phoenician times show that they made semi-permanent “dental bridges” using what material?

14.   About when were acrylic resins introduced to dentistry?

23.  Fuel gas tanks may safely lie on their sides during use.

16.  “Vulcanite”, the denture base material, was invented by?

19.  Where was the first dental laboratory in the U.S. founded?

21.  The names of Duchateau, de Chemant, Fonzi, and Ash are associated with the development of which dental material?

13.  What material(s) were used to construct George Washington’s dentures?

12.  When was the National Association of Dental Laboratories (NADL) established?

24.  One should lightly grease the fittings and nuts on the tanks, lines and torches to prevent gas leaks.

7.  What body has the complete authority to make rules and laws to regulate the health professions, including defining what dentistry is and the professional working relationship between dentist and laboratory technicians?