Yea it’s like people that bring in their dead ancestors teeth, no one wants to buy an old tooth and certainly not one with $5 worth of gold in it.
[1] https://thegoldcenter.com/how-much-gold-is-in-a-dental-crown... [2] https://www.macrotrends.net/1333/historical-gold-prices-100-...
These people buy millions per day in gold, I’m sure if it was profitable they wouldn’t turn it away.
You can try it though, go to all the gold stores in your area and tell them you’ll buy all the teeth they bring in.