I've get an Italian graduation contained by dentistry, what I own to do to work within the USA as a dentist?

Do I have to take any qualification or piece of paper (document)?
Do I own to pass an exam?
How does it work? newly go and lug a toefl exam to show that u really know the english and then look for a place which will adopt u as a dentist easy to find out.
probably you should get hold of some kind of liscence