Do you think my smile will return after chin liposuction? (Photo)

This can be typical after chin liposuction and should improve as swelling resolves. If you remain concerned, I recommend following up with your surgeon. Hope this helps.

During the first 7-14 days the effect on the marginal mandibular nerve can be seen with partial or total paralysis of the lower lip.  The nerve should rebound in time and will heal in most cases. In many instances the decreased lip movement is simply due to swelling (edema) of the soft tissue and nerve itself.  This is a relatively uncommon occurrence but a known risk to crevice-facial liposuction. 

I hope that this resolves for you soon!