Dental laboratory Flashcards
1
Q
what is the substance called to speed up reactions?
a: catalyst
b: chemical reaction
c: exothermic reaction
A
a
2
Q
material becomes soft when heated and becomes hard when cooled
a: stiff
b: endothermic
c: thermoplastic
A
c
3
Q
A time period when it is still possible to be molded to a shape?
a: molding time
b: shaping time
c: working time
A
c
4
Q
amount of time for material to become as hard as it can be
A
setting time
