Despite dentistry becoming regulated, unlicensed dentists still practiced, often offering inferior services, prompting some to call for their prosecution.
According to a newspaper report in 1910, many of these dentists were immigrants whose home countries did not regulate dentistry as stringently as did the United States.
In Paris in 2003, 23 unlicensed dentists who practiced out of cafes and grocery stores were arrested.
[5] In 1998, a man was arrested in Van Nuys, California for operating an unlicensed dental practice out of the back of a toy store in a strip mall.
Most countries in the developed world have laws preventing the unlicensed practice of dentistry.