Typically, expanded functions dental assistants prepare the treatment rooms or operating rooms before procedures. (payscale.com)
Also depending on the state, there may be one or several levels of certification for expanded functions dental assistants. (payscale.com)
In some cases, however, dental assistants can become extended functions dental assistants (EFDA) and perform advanced duties such as applying anesthesia and removing prosthetics. (work.chron.com)