man I must just be dumb or slow. i try to do that and scale and the proportions are all messed up ..gosh i must be dumb ...still trying though ...I just do one side and it looks horrible. Maybe picking wrong vertix and then other side same way . I go in side view it is hard to see what is adjusted .

also is there a way to select all of vertix on jaw. Lower jaw is not good in size at all. Any way to change overall size ? I am trying to select all vertixs but not succedding ...trying to hold shift and do it