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- May 15, 2008
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which of the following hand insturments is the most applicable for placing the retention grooves in the distal box of a class 2 amalgam prepartaion on a mandibular second molar.
a). 15-8-8
b). 15-8-14
c). 13-80-8-14
d). 13-95-8-14
if i had to guess id say d. but i have NOOOOOOOOOOOO clue..can anyone explain??? thanks
a). 15-8-8
b). 15-8-14
c). 13-80-8-14
d). 13-95-8-14
if i had to guess id say d. but i have NOOOOOOOOOOOO clue..can anyone explain??? thanks
