Reply To: cant close the mouth

I think the problem is two fold. First the number of polygons around the mouth is very dense, and that makes it very difficult to move a huge chunk of the mesh without causing a mess. And the very structure of the mouth is not the same, your is flatter, while the original one has the jaw more prominent, making the jaw easier to pivot for the closing and opening. What I suggest is to move it and make a mess out of it and then in sculpt mode try to soften it and smooth it.

Original:

Doran: