S.C. Code § 40-15-140
It is the duty of the board to examine (or cause to be examined) all qualified applicants for a license to practice dentistry or dental hygiene or who desire to be registered as dental technicians in this State. No examination is required to be registered as an orthodontic technician. Prior to admittance to the examination or the registration of an orthodontic technician, each applicant shall produce evidence satisfactory to the board that he possesses good moral character. If the board refuses an applicant admission to the examination or registration as an orthodontic technician because of unsuitable moral character the board shall notify the applicant in writing and set forth in detail the reason supporting the board's decision. An applicant who holds a license or certificate from any jurisdiction shall certify that he has not violated any of the provisions of the Dental Practice Act governing his prior license or practice or operation. In addition, each applicant shall present the following:
The application must be received by the board not less than forty-five days before the examination date. An application for registration as an orthodontic technician may be submitted at any time. Each applicant shall pay to the board a fee as prescribed by it by rules and regulations. Each applicant must satisfactorily pass the examination prepared by the board on subjects and operations pertaining to dentistry that are regularly taught in such accredited schools. The examination must be given either orally or in writing, or by requiring a practical demonstration of the applicant's skill, or by any combination of such methods as the board may in its discretion require. The board shall grade each examination and inform the applicant of the result within a reasonable time after the date thereof. The board shall issue a numbered license to each person who passes the dental or dental hygiene examination and a numbered certificate to each person who passes the dental technician examination and to each applicant to be registered as an orthodontic technician. All examination papers must be retained by the board for two years and upon request be available for inspection by a person examined.
Dentists and dental hygienists, and dental technicians who are validly licensed or registered in this State as of April 13, 1968, are exempt from reexamination except in instances where application for relicensing or reregistration is made following a period of suspension or revocation of a license or registration certificate, in which instances reexamination is discretionary with the board.
Dental examinations must be given annually by the board and dental hygienist and dental technician examinations must be given semiannually by the board.
S.C. Code § 40-15-140