Could fillers help my asymmetrical jaw? (photo)

there are a lot of options for you, but you will need an in person consultation.  It is hard to tell if your masseter (the chewing muscle) is larger on one side than the other.  Botox can correct this.  If it is a structural issue, then fillers such as Radiesse or Voluma and/or surgical procedures like implants or jaw reshaping are options.  There are many possibilities, but likely no one treatment will cure this without a formal proper evaluation.  Best, Dr. Emer.

Obviously a consultation with a board-certified plastic surgeon would be in order but I think you have three options that jump out at me.  First, fillers would be an option but you would probably need a fair amount of filler and they don't last very long.  You would need to replenish them from time to time.  Second, you might get Botox injections into the masseter muscle on the opposite side, assuming that it is prominent.  This would have the effect of making the fuller side of your face more lean.  Finally, there are actually implants that can be inserted into that area of the jaw to give it better definition.  This would require a surgery to insert them but the result would be permanent.

Asymmetry of the mandible or maxillary is usually corrected by orthographic surgery especially when associated with malocclusion. Small irregularities could be helped by fillers but this is only a temporary fix. 

You appear to have a congenital ma fibulae asymmetry as opposed to muscle or salivary flange imbalance. Skeletal problems are best corrected with implants. I believe that is you best option. Implants are not necessarily permanent. Facial implants can be removed easier than fillers. Unfortunately many surgeons have no experience with them. Patients' surgical options are frequently limited by their surgeon's skill set which then influences their advice to patients.

Absolutely I would recommend Juvederm's VOLUMA 1 or 2 syringes should do the trick . Be sure you use expert filler doctor...