If I clench my jaw and it gives me hollow cheeks should I train my masseter muscles?

[Jus_Kev]

Also should I do it with gum or jaw trainers?

 

[Deleted member 291046]

Also should I do it with gum or jaw trainers?

No.

 

[mohito]

Training the masseters can increase bigonial width regardless of the initial bone formation, but the hypertrophic effect is minimal. Chewing gums does't really work since it can't provide continuous tension