All of the following reasons are true for using a dental dam except

to isolate one or more teeth for treatment.
to maintain patient airway.
to prevent aspiration of endodontic armamentarium.
moisture control.

to maintain patient airway.

Rationale: to maintain patient airway – This is not a reason for using a dental dam.

Health Professions

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3Which sleep stage is the transitional stage between drowsiness and sleep?

a. Stage N2 c. Stage N3 b. Stage N1 d. Eyes Closed- Wake

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