Maxwell Furr, MD

You're right-the scar will need more time to mature before you decide to undergo an invasive treatment to correct it.  In the meantime, the most important consideration is sun avoidance.  Silicone gel products can be effective, as they are felt to maintain hydration of the healing scar by creating a negatively (-) charged surface condition, which draws water to the surface.  You can also try using a silicone sheeting (cimeosil, etc) which is felt do do the same thing (and the sheeting is reusable).  Since the scar appears to be reddened, conservative IPL treatments can help while you are healing.

 

Things that work in your favor are the irregular nature of the scar, and it also seems as though the surgeon who performed the repair did a good job at aligning the edges well.  Give it a little time and then discuss with your Plastic Surgeon in a few months.  Options will range from dermabrasion to laser resurfacing to surgical revision.  

Botox, Dysport, and filler injections are invasive medical procedures. As such, it is necessary that the professional performing the injections is experienced and trained properly.  While many nurse injectors may fulfill these qualities, board certification by the Plastic Surgery or Facial Plastic Surgery boards is a clear indicator of both proper training and experience.  Also, although adverse reactions or complications from these procedures are infrequent, a board certified physician is best qualified to immediately identify and properly treat them if they occur.  

While injections are certainly a viable alternative to chin implant augmentation, you should be evaluated for your dental malocclusion (overbite) prior to either.  If there is a functional bite problem present, then orthognathic surgery (to correct your bite) may correct both issues with one procedure.  Once that evaluation has been completed, if you wish to proceed only with chin augmentation for cosmetic reasons then either an implant or injections can be considered.  In addition to the extent of augmentation possible with injections (likely less augmentation than an implant), you should consider the need for repeat injections at regular intervals for as long as you wish to have your chin augmented. Cost will also be a concern with this method, as you will easily exceed the cost of an implant procedure within the first 10 years of injections.  Good luck with your decision!

Since nerve function can return as late as 12-18 months after the initial injury, It would be wise to continue to wait prior to embarking on surgical correction.  However, in the meantime, Botox/Dysport treatment to the opposite side can be of some help.  Also, judicious use of fillers to the area around the eyebrow can provide a small amount of eyebrow elevation, which can further help with symmetry and will not affect the nerve's recovery.  Good luck, and I wish you a speedy recovery!

While general anesthesia is preferable when performing surgery of longer duration or that is more invasive, chin augmentation alone is a great procedure to perform under local anesthesia or under conscious sedation ("twilight anesthesia").  The most uncomfortable part of the procedure will be the injection of the local anesthetic, but that discomfort will only last a few minutes at most.  The method of anesthesia would not be expected to affect the outcome or healing process, or post-procedure discomfort.  Good luck with you decision!