During placement of amalgam pins, the number of pins per cusp is:
a. 1 pin.***
b. 2 pins.
c. 3 pins.
d. 4 pins.
(one pin per cusp , one pin per surface , one pin per line angle).
a. 1 pin.***
b. 2 pins.
c. 3 pins.
d. 4 pins.
(one pin per cusp , one pin per surface , one pin per line angle).
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