Which teeth to use to develop masseter when chewing hard gum?

[Sceriff06]

Hi guys, I've read several theories about masseter hypertophy, but I wanted to know if any theories are supported by evidence.

Is it true that to develop masseters and shorten the midface you have to chew mainly with front teeth?

Or is it better to chew with all your teeth equally?

 

[2marc1]

premorals and incisors

 

[Sceriff06]

premorals and incisors

Can you also explain why?