Teeth wont move

This dinos’ teeth won’t move with the jaw. But after weight painted they did move with the meta rig, but still doesnt move to the control rig.
What do i do now?
Why is it happening anyway? are body and teeth separated meshes? if yes, can i combine them into one mesh?

https://drive.google.com/drive/folders/17RHPGvQj7jk8MEdJTB4etb2nFC5xrUCi?usp=sharing

Probably you’re using rigify, and probably, the teeth bone is non-deforming. You’re intended to bone parent your teeth to the teeth bone rather than armature deforming them (which, yes, relies on the teeth being a separate object.)

If you want, you can find the teeth bone and enable “deform” on it in properties/bone/deform, although such changes probably won’t survive re-generation of the rig from the meta-rig, if that’s important to you.