Which of the Following Is True of Computer-Aiding Machining for Crown

Multiple Choice

Which of the following is true of computer-aiding machining for crown and bridge techniques?

A) It is available only for fabrication of porcelain veneers.
B) No die needs to be poured,and no temporary crown is necessary.
C) A porous ceramic core is infiltrated with molten glass by capillary action.
D) Ceramic powder is mixed with a water-based liquid to form a mass that is pressed onto a porous refractory die.