Where should the cervical margin of a matrix band lie?
A)One millimeter beyond the gingival floor
B)Three milliliters beyond the gingival floor
C)One millimeter above the gingival floor
D)At the level of the gingival floor

Question

Quizplus · Accepted Answer

When a posterior metal matrix band and retainer are placed,the seated matrix band should extend approximately one millimeter below the gingival margin of the preparation.

Where Should the Cervical Margin of a Matrix Band Lie