According of ADA specification No or number 1, the minimum compressive strength for silver amalgam filling aftr one hour should be:

According of ADA specification No or number 1, the minimum compressive

1.	According of ADA specification No or number 1, the minimum compressive strength for silver amalgam filling aftr one hour should be:
A.	80 Mpa
B.	140 Mpa
C.	260 Mpa
D.	510 Mpa
Answer» B. 140 Mpa