"According to the Royal College of Dental Surgeons of Ontario, the dentist had to report Ms. Lopez under the auspices of the Child and Family Services Act." 

But the previous dentist didn't  do his basic due diligence - he could have called the mother if concerned. Instead, he did that for a bureaucratic reason; unless CFS is entrusted to foot the bill, it should stay out of it. And the poor  mother has a record cast in stone with CAS instead having it expunged  after having found it was based erroneous information about milk teeth. If it is based on patently incorrect information, it should not be kept in the file albeit with a note. Its crazy. Thanks for CBC to bringing it to the public.

Ideally that mother must seek legal advice, but she may not be able to afford it. What a mess for nothing!