If you have any concerns contact your injector. You are more than welcome to contact the clinic any time following an injection to discuss your concerns. The injector is familiar with the injections administered and is the best person to assess. All the Best.
Botox applied to the masseter muscles works very well in adults with bruxism. It's effects last 3-5 months and some patients even report that they don't find the need to use their custom mouthguards during this time period.