Masseter muscle surgery pros and cons? 1) Will muscle rebound to the ori size after the surgery if I still grind my teeth?

2) Is there difficulties in chewing/nerves damage/saggy facial appearance? I have a hypertrophic masséter muscle, partly due to genetic & teeth grinding. I have tried using Botox to keep my muscle size at bay for the past 5-6 years & my masséter muscle is kind of immune to it. Botox effect only last for a month. In the fourth week, I can feel the muscle is very active again. I did doubt on the doctors skill but I have tried 3-4 certified doctors but it's still the same. Tried Botox and XEOMIN.

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