11.   Oral water sprays used by dentists contain levels of some bacteria that could kill vulnerable patients, government researchers have discovered.

12.   Some have suggested that dentists use sterilized water for patients with weakened immune systems, but the CDC does not support that suggestion, she says.

13.   Wirth said that Invisalign does nothing to simplify orthodontics and that the company could not rely on dentists to use it appropriately.

14.   Nitrous oxide, the laughing gas used by dentists, may help smokers kick the habit, according to the results of a preliminary study presented.

15.   Police said the dentists used a computer linked to state records showing how much money children had left in their Medicaid accounts.