Simoned2, Thank you for an excellent question. Botox can be used for various areas of the face off-label including in the masseter for teeth grinding. "Off label" usage refers a physician using an FDA approved medication for a purpose the FDA has not specifically approved it for. Insurance will not typically cover "off-label" use of Botox. I hope you find that helpful. I would recommend consulting a facial plastic specialist to discuss your concerns. All my best! Dr. Elizabeth "This answer has been solicited without seeing this patient and cannot be held as true medical advice, but only opinion. Seek in-person treatment with a trained medical professional for appropriate care."