Violation
While seating a maxillary impression tray, an expanded function dental assistant (EFDA) gently lifts the patint's lips out of the way. What could be possible reason for such an action?
It allows the material to floe into the vestibule
It prevents the breakage of the palatal seal
It prevents the flow of the material into the patient's throat
It prevents the excess material from going toward the back of the mouth