So they'd just confess to you, 'hey I'm undercover for the pharmaceutical cartel', right?
You obviously aren't aware of the pressure those FDA goons can bring to bear--and not just you. I'm guessing they were trying their darnedest to be oh so helpful as possible. Somebody's life depended on it.
Look at the amount of money the dental industry stands to slice right off the top (and middle) of some sucker's income times however many they can con into doing it.
If it was a free procedure, it's probably legit, but if there's lots of money involved, don't trust their info any further than you can pull the words off your screen and throw them.
The cartel owns the natural heath venue too, so you can be all natural and still be quite the cartel flunkie--there are a bunch right on Curezone, if you have any doubt.