Dentists in the United States either have the initials D.M.D. or D.D.S. after their name. A lot of people wonder what the difference is between the two. The truth is that the only difference is in the name. The Dental degree and the education are the same. D.M.D. stands for Doctor of Dental Medicine and D.D.S. stands for Doctor of Dental surgery. Some schools award the D.M.D. degree such as The University of Connecticut. Others award D.D.S. like The University of Buffalo.