While regulation and oversight are critical to keeping our profession in the favor of the public (both trust and respect), unfortunately, having every dentist repeatedly take exams (every 3 years) will not stop those that wish to commit wrongdoing or ignore the laws and statutes that exist...anymore than more gun laws or interview screening will prevent a terrorist from getting a gun and killing innocents. As professionals, we must be individually vigilant and monitor ourselves and continue to always do our best to be our best...and, I think the overwhelming majority of us make that effort day in and day out in our practices, with our patients, and in our communities.