What's your definition of safe?
There are many very old people with different types of fillings so I'm assuming they are all pretty much safe. Probably cheaper to just get it pulled
though.
When their teeth decay we will fill them with metals that will kill their mind and steal their future.

howd you like them teeth! cost is about $30,000 and up..
kinda reminds me of JAws, or the bad guy guy jaws, from an older james bond movie.
wonder how thier gums feel when its 101 degrees outside,
not including the humidity