Which Statement Is Correct Concerning Wedges

Which statement is correct concerning wedges?

A) A wedge is used to apply pressure to the apical and gingival walls of the preparation.
B) The wedge presses the band against the tooth, causing a slight separation of the teeth.
C) The most commonly used type of wedge is the rounded plastic form.
D) Both a and b are correct statements.

Correct Answer:

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