Dear learning, I am so sorry to hear of your Dad's diagnosis and upcoming surgery. It is hard on all of you to deal with, I know. If you will go to the main OCF site and type in "mandible" in the search section, you will come up with some good information about this type of cancer. If you go through the OCF forum search (top of this page) you will pull up some information and posts from members who have gone through this operation and can tell you first hand how they did!
You will all get through this, honest!
I am glad you found this forum, it has really helped me get a handle on what's going on with this cancer, and I am sure it will help you too.
Best wishes,
Andrea