42 C.F.R. § 410.24
Limitations on services of a doctor of dental surgery or dental medicine
Medicare Part B pays for services furnished by a doctor of dental surgery or dental medicine within the scope of his or her license, if the services would be covered as physicians' services when performed by a doctor of medicine or osteopathy.
Surgery on the jaw or any adjoining structure; and
Reduction of a fracture of the jaw or other facial bone.