I am strongly opposed to this requirement.  I read (skimmed) the Drug Laws for Practitioners which is 58 pages of single-spaced bureaucrat-speak of which maybe one page would pertain to my practice of dentistry.  Regulations of the Practice of Dentistry is 29 pages many of which pertain to mobile clinics, oral surgeons or other specialty certification, sedation and general anesthesia which does not pertain to the average general dentist.  Other pages pertain to initially obtaining a licence.  The only part of which the average dentist needs to be aware is the Standards of Practice, the delegation of duties and the requirements to maintain the licence.  The periodic law exam should not be a requirement.  These pertinent topics could be periodically  addressed in newsletters or other online instruction with some mechanism to insure they were read.