Mesiodistal width of gingival seats of class II amalgam restoration is In: millimeters:
A. 1 mm
B. 0.5 mm
C. 1.5 mm ***
D. 2 mm
Extend to cariously involved fissures only
initial pulpal depth: 1.5
smooth curves
isthmus = 1/4 intercuspal width
gingival floor width = 1-1.5 mm axially
axial wall follows outer contour of tooth
marginal ridge width = 1.6 mm
