Which of the following types of injections is always used for allergic extracts?
a. Intramuscular
b. Subcutaneous
c. Intradermal
d. Z-track
Question 2
An amalgam restoration is charted by an ____________.
a. outlined area with crosshatch lines through it
b. outlined area filled with red or blue
c. outline in red or blue
d. none of the above