I didn't ask but I think piezosurgery only affects how the bone is cut. The whole purpose of it is to not damage soft tissue around it. There's one surgeon who makes smaller incisions so less muscle may be affected. Muscle relaxants sound like a prudent precaution. Bruxism must be very common in jaw surgery patients in general. I would add that treating sleep apnea may also help, as it causes a lot of bruxism too. That's a bit of a challenge since you can't use CPAP for a long time afterwards, at least 6mo I'd say. My surgery had better work, otherwise I don't know how I'll make it to that point or what impact it'll have on my ability to heal. I can't even get through a single night without the machine. The headaches and other problems are just awful, enough to wake me up several times a night.