The Oregon Board of Dentistry may adopt rules requiring additional education and examination of applicants who have failed the licensing examination three times. [Amended by 1963 c.266 § 7; 1967 c.90 § 2; 1971 c.34 § 3; 1977 c.444 § 4; 1979 c.526 § 2; 1981 c.232 § 3; 1983 c.169 § 23; 2003 c.83 § 11]