Almost 2 weeks after botox injection for masseter - protrusion.

Botox takes two full weeks to kick in.  You may need more units injected.  Follow up with your provider.

It can sometimes take a series of Botox for masseter reduction. Radiofrequency treatments can help improve results. I recommend getting a formal evaluation with an expert. Best, Dr. Emer

Thank you for your question. It may be possible that you need additional Botox to further weaken the muscles. I recommend having a follow up with your injector for evaluation and treatment. Best of Luck!

Thank you for your question. It may be possible that you need additional Botox to further weaken the muscles. I recommend having a follow up with your injector for evaluation and treatment. Best of Luck!

Having performed this procedure many times and had it performed on myself ( I love the results!), I will tell you with a large, strong muscle like the masseter, touch ups are usually necessary when your provider first starts treating you. Why?
It is more efficient and cost effective for me to use a predetermined amount botox, placed in the muscle, document where it was placed and then observe the results. I can then customize an injection map just for you. When you return for follow-up after two weeks, additional botox can be placed, as needed, and documented. The resulting "treatment map" stays in your chart and can be exactly repeated when you are due for more.  A "tidal wave" approach or placing large amounts of botox everywhere to try to avoid touch ups is wasteful, costly and above all, dangerous! As long as you continue with the same doctor, your customized treatment map will be your guide for safe, comfortable and effective botox treatment for your masseters.
Good Luck! Dr. Ebner

If the whole of your muscle has been treated adequately, clenching your teeth should not give visible movement here. The muscle does require higher than normal amounts of drug and so you may well need further treatment.
Good Luck,
Richard Price

Thanks for sharing your question. It is possible that you need additional Botox to further weaken the muscle. Alternatively, the injector may have placed the Botox too superficial and so the deep component of the muscle has still not been weakened and that is what you are seeing when you clench. You would need additional Botox injection to the deep component of the muscle in this case. Hope this helps. Good luck.

As mentioned by my colleague previously Botox injection into masseter muscle is done to reduce their bulk and enhance tapered face appearance. Two weeks is too early to see the difference, plus it takes two or three times repeating the injection within certain time interval.   

The Botox won't make the masseter muscle "disappear". It will simply make it not as prominent. If you aren't happy with your results, see your surgeon to discuss. 

If you feel that your muscle tone has not decreased 2 weeks after your injection you should contact the injecting physician and follow up with him/her.  It is possible that the amount of Botox injected was not quite enough to taper your jaw line to your satisfaction.
Good Luck!