I'm considering a chin implant removal after 2 months, will the sensation come back?

Temporary sensation loss after chin implant placement is possible and generally resolves with time. The implant should not be palpable through the mouth. Considering the fact that you still have sensation loss and you are concerned about the implant position, I would recommend a CT of the implant to assess the implant position. In some cases, the implant can migrate and needs to be re-positioned. Follow-up with your surgeon and express your concerns.  

It is impossible to know for certain if your sensation would return on the right side after removing your 2 year old chin implant.  If the nerve had been damaged during placement of the implant, then it is possible that the sensation might not return.  If the implant is just causing some irritation to the nerve, then it is likely that the sensation would return after removing the implant.  

If the nerve is stretched by the size of the implant, you may be able to recover function by having the implant removed.

If the loss of sensation is due to compression of the mental nerve by the implant you have a good chance of having sensory return. The sooner the implant is either removed or repositioned the better. If there is any question about where the implant is sitting a 3D CT scan of the lower jaw can make that determination and eliminate any guessing.  

Maybe.  It depends on whether the nerve injury was caused by the original procedure, or is being stretched by the implant.  If the implant is actively irritating the implant, then removal is likely to improve your symptoms.

 Hi, I have performed many facial shaping procedures, including Chin Augmentation with dermal fillers or silastic chin implants, for over 30 years.  When the chin is weak, this creates an imbalance making the nose appear larger, the mid face top heavy, the lower face looks short, de-emphasizes the lips and allows early formation of a "double chin".  Numbness at 2 months following chin implant placement through a small incision under the chin is quite rare in the hands of an expert facial shaping surgeon.  Have this conversation with you chin implant surgeon.  If the mental nerve was injured or damaged during the procedure, numbness can continue to improve for up to 2 years following the surgery.  At this point there is no want to tell if that will occur.  Removing the implant can be done carefully, again by an experienced chin implant surgeon, which is very unlikely to cause any further damage to the nerve but will not resolve the numbness either.
 Proper placement of a silastic chin implant adds forward projection to the chin thereby creating harmony and balance to the lower face.  Using the same incision, liposuction can be performed to reduce the fat and further shape the neck.  Excess skin, from below the chin, can also be removed through the same incision.  
 I have found that placement of a silastic chin implant, through a small curved incision under the chin (also allows excess skin removal) to be very safe, quick, highly effective and far less invasive than a sliding genioplasty (requires extensive tissue dissection, bone cuts and placement of metal screws and plates to secure the cut segments of bone).  I perform chin implant surgery in 30 minutes or less, often using a local anesthetic alone. 
Hope this helps.

Whether or not you remove the implant, there is a very good chance the sensation will return to normal in 6-8 months. But it sounds like you might need a revision if you keep the implant, you should not be able to feel it through your gums. 

Dear Casanovanoir, If your chin implant is out of place and is causing pressure on the nerve then removing the implant is the best solution and likely the nerve can recover to its normal function. Best regards, Michael V. Elam, M.D.