Each of the Following Are Appropriate Instructions to Provide the Patient

Each of the following are appropriate instructions to provide the patient regarding at-home whitening EXCEPT one.Which one is the EXCEPTION?

A) An over-the-counter fluoride can be used to reduce sensitivity.
B) Avoid consumption of food and beverages such as coffee,tea,cola,blueberries,and dark cherries.
C) Continue with weekly applications of whitening after the desired shade has been achieved to maintain the level of whiteness.
D) Begin using a sensitivity toothpaste 2 weeks prior to treatment to reduce the risk of sensitivity.