Hi @pauley Welcome to the head and neck cancer group. We are all very active except perhaps this specific discussion. If you search on Ameloblastoma there is currently a discussion concerning the surgery to replace a faulty mandible.
Usually with osteoradionecrosis, when it comes to the jaw or mandible as I understand it, the bone dissolves which can lead to an easy fracture. Of course once that happens, it likely will never heal and should be replaced as soon as possible.
What is your status now? Are you getting help and what kind of help?