S.C. Code Ann. § 40-15-260

The board, upon satisfactory proof that the applicant has satisfied the then current educational requirements as set forth by the American Dental Association for ethical announcement of a practice limited to that specialty and has complied with all requirements of the board, may issue a license to such a dentist authorizing him to hold himself out or announce to the public that he is a specialist in, limits his practice to, or gives special attention to such recognized special area of the dental profession. Such special license shall be reregistered in the same manner as provided in this chapter for a license to practice dentistry.