Numbness and Swelling Post-chin Implant, Neck Lift, and Lower Facelift

The numbness you are experiencing is likely related to the chin implant placed by you surgeon. Either the nerve was damaged at the time of the implant placement or the implant is resting on the the nerve. This is more likely if you had a large implant placed or if the implant was placed through the mouth as opposed to under the chin. My recommendation would be to have the implant removed to see if the nerve settles down. If it doesn't, then it means the nerve was disrupted at the time of the initial surgery. You can have the implant replaced months later if you choose. Best of luck.
Dr. Amir Karam

The reason your right lower lip and chin are numb is because there is a nerve that exits the jaw bone that provides sensation to those areas right were the chin implant wings are placed.

When this nerve is stretched by the procedure or implant itself the nerve in most case recovers in a short period of time. I am concerned however that it has been a year and the nerve has not recovered yet. This could imply a more serious compression injury to the nerve. In rare cases it could even mean the nerve was cut during surgery.

It is best you sit down with your surgeon and see if they think removing or re-positioning the implant could possibly help the nerve function improve.