Muscle strain after chin implant?

Before I got a 5mm implant, my chin used to dimple when I closed my mouth but after it didn't dimple at all no matter how much strain I put on my lips. My chin felt tight and muscle felt clumped almost like it was paralyzed (my chin wasn't numb just felt a bit sensitive). It didn't go away after a few mos so I got the implant removed but my chin still feels weird. My doc said that I should wait more but is there any scenario where the muscle or nerve is damaged &results in something like this?