The most commonly cited reason for exposed dentinal tubules is:

Restorative work, such as crowns, composite restoration, and veneers, should be completed after whitening procedures are complete.  Restorative materials will not change shade in response to the whitening procedures.

Intervention(s) that can help minimize or prevent tooth sensitivity include _______________.

Vishen Lakhiani in this TED talk argues that the “world Greatest workplaces” share which core characteristic?

In hepatitis B serology, which of the following marker indicates active infection? 

Which domain(s) is/are composed of prokaryotic cells?

All of the following are ways RNA differs from DNA except:

A study may be pseudoscience if

Researchers are testing the effectiveness of a new medication to treat high blood cholesterol. The medication is delivered as a pill taken once a day. Half the subjects receive a pill with the new medication, and half the subjects receive a sugar pill. The subjects don’t know whether they’re receiving the medication or the sugar pill. The researchers interacting with the patients don’t know which ones are receiving the medication or the sugar pill. How would you describe the sugar pill?

Cells constantly rearrange molecules by breaking existing chemical bonds and forming new ones. Which major theme is illustrated by this action?