Pyrophosphates decrease the formation of which of the following?
A) Plaque
B) Calculus
C) Early carious lesions
D) Gingivitis
B
Explanation: B) Several agents are currently available to reduce calculus formation, including dentifrices that contain pyrophosphate.
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A patient has a very high white blood count with many blasts in the blood and bone marrow. Esterase stains using both naphthol AS-D chloroacetate and a-naphthyl acetate esterase as substrates are both positive. What condition is likely?
a. Chronic myelogenous leukemia b. Acute lymphoblastic leukemia c. Acute myelomonocytic leukemia d. Hairy cell leukemia
The clear, circular disk located just posterior to the iris that helps the eye focus is the ________, which is shown at letter F in the figure.
A 4-year old fell from a third-story window and landed on her head. She is semiconscious with slow, irregular breathing and bleeding from her mouth. After performing a jaw-thrust maneuver with simultaneous stabilization of her head, you should
A. suction the oropharynx B. insert a nasopharyngeal airway C. initiate positive pressure ventilations D. CANT READ it
Which of the following statements regarding the mechanism of injury (MOI) is correct?
A. A nonsignificant MOI rules out the possibility of serious trauma. B. The MOI may allow you to predict the severity of a patient's injuries. C. The exact location of a patient's injuries can be determined by the MOI. D. A significant MOI always results in patient death or permanent disability.