The board is authorized to promulgate rules necessary to implement the loan repayment program authorized in this article, including determining the amount of financial assistance available; establishing the criteria in section 25-23-103 (2) for loan repayment assistance and the criteria for determining what constitutes a significant level of service to underserved populations for purposes of qualifying for loan repayment assistance; and establishing criteria for prioritizing the repayment of loans if there are insufficient moneys in the state dental loan repayment fund.