I strongly oppose adding yet another training to the list of requirements.  At the bare minimum dental assistants are trained by their dentist employers who have been extensively trained in infection control.   That should be enough, but assistants are also trained in their dental assisting educational programs and in yearly OSHA trainings.  What is the science behind needing more regulation regarding infection control?  Have there been a large number of infections due to inadequate infection control?  Unnecessary regulations drive the good people away.