Jaw problems after extensive radiation treatment

What surgery your sister having?

I see you are having trouble with trismus which many of us on here do. I was just wondering have you been with a speech therapist to try to alleviate this?

If you search this "surgery for trismus" on the internet you will get lots of results to read. Below is an example--

Managing Trismus After Treatment for Head and Neck Cancer

https://www.mskcc.org/cancer-care/patient-education/trismus

This information will help you manage trismus (lockjaw) after treatment for head and neck cancer. Trismus is when you have trouble opening your mouth fully.

I think if you know your situation and work closely with your care team they can direct you to the best path to take on this. Also, keep in mind that sometimes getting a second opinion is a good option that way you are getting more professional input on your case.

And lastly, you may want to start a new topic and it would get more attention on the forum.

Wishing You the Best

Take care, God Bless-Russ