From: Comparison of marginal fit of cemented zirconia copings manufactured after digital impression with lava™ C.O.S and conventional impression technique
Group
Microscope
Mean
SD
Lava™ C.O.S.
AMD Optical
191.543
85.422
Convent.
158.609
69.147
AMD SEM
211.600
96.557
152.721
72.364