What does everyone do with boar or warthog tusks to prevent splitting?

[thriller]

Candle wax, or normal silicone.
All ok.

I also have one pair of tusks, never filled with anything, and in good shape for all these years. I wonder if filling is really necessary?

Some survive and some don’t. None of my filled sets have split, but about half of my unfilled ones have over time

 

[grand veneur]

Just ask in Mycenae how they did it. After all, fairly well-preserved over 3000 years old boar tusk helmets were found in the graves.

Boar's tusk helmet - Wikipedia

en.wikipedia.org

 

[Tamboti]

Nothing. I do have many tusks from European wildboer, african bushpig and warthog, up to app. 40 years old. No tusk ever split. Have no idea what other people do in order to have them split.