I looked it up and it's apparently from Egypt, the teeth were donated by someone else and wired into this person's mouth.
I still think it would hurt to wire them in
This appears to be copper... Which wasn't discovered until about 2-3000 years ago let alone fine tuned into a workable thread wiring.... So I'm calling bullshit...
Dang, brothers got an OG grille. Bet the ladies were impressed. Bet he had a really cool nickname, something like thugtalica. Look at how the dentist carved the bone into a smooth cresent. Wish my dentist had done the same for my denture. I've got a bone spike that fucked-up an otherwise fine job.
I still think it would hurt to wire them in