The exercises, splints, should be done the first few months, if they are going to help. There is a similar device called Dynasplint. Other than that, there is not much help. Electrical stimulation is somewhat helpful, and surgery to the jaw joint area, which can increase the mouth range of motion, but due to the wide field of radiation to other adjacent areas, fibrosis, it's not that helpful. There is a visual measurement with mouth range of motion, maybe by WHO, I forget, that breaks down in levels, stages or degrees. That's why the surgeon, anesthesiologist asks you to open your mouth pre surgery, to see if they may need to inter-bate you while awake, put a temporary trach in sometimes, and just missed the trach lady surgery, but did inter-bate while awake, but give you a sedative, and was knocked out just from that. Good luck.