Can Botox in the jawline permanently change your face?

had botox in my jaw.It was like 3 little Injections from 1 second. So don't know how much that is. But know after 2,5 weeks, i cant laugh like the way before, my mouth corner is down. When i smile also my nasolabial is different.now my question is, as for i know it will last for 4 months. Can it change my face permanently? Because know I'm moving my mouth different and my theory is: maybe because of the different moving for the next couple of 4 months it may can change the whole area permanent?