Does anyone know how to add a sharp teeth on their model? (for Manuka in this case)

[Ayumi]

Hii, i would like to add something like this on my Manuka avatar but i have no idea how, can someone help me?

[Hiraeth]

"mouth_yaeba_L / R" these 2 blendshapes from manuka can do.
Selestia has the same blendshapes too, but if the author didnt make the blendshape idk then.

[Ayumi]

oh thank you so much! somehow i just couldn't find it xd