(2) The examination shall be sufficiently thorough to determine the qualifications, fitness and ability of the applicant to practice denture technology. The examination may be in the form of written, oral or practical demonstration of skills, or a combination of any such types. The examination shall cover at least subjects listed in ORS 680.515 (2) and any additional subjects required by the Health Licensing Office by rule that are based on changes in industry technology, health care delivery systems, client safety or scientific infection control techniques. [1979 c.1 §5; 1981 c.313 §3; 1991 c.921 §3; 1993 c.142 §6; 2005 c.415 §4; 2005 c.648 §25a; 2012 c.43 §10; 2013 c.568 §45]