No: You can't change the shape of your jaw by chewing gum.
Answered 6/26/2014
3.9k views
Yes, it is possible: Masseter muscle hypertrophy could be caused by excessive gum chewing. The treatment is a Botox injections every 3 month. See your dentist for more information.
Answered 6/27/2014
3.9k views
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