Guess what?! The Dental Staff Institute is now able to offer a CHALLENGE EXAM for NC Dental Radiography certification. This one-day “course” is open to any dental assistant from another state who already has taken a dental radiography course and is able to send that dental radiography certificate to our school. It is much quicker and less expensive than taking the full two-day North Carolina Dental Radiography certification course. You will not need to sit through a day of lecture, and we give you a textbook to use before the written exam. Easy, breezy!