David

Here is the link to OCF's discussion of trismus. Trismus-OCF the home test for Trismus is to open your mouth and try to put all three of your middle fingers (index, middle, ring) into your mouth between your teeth. If you cannot do it super easy, you have trismus. Even the three fingers are just the bare minimum for not having trismus.(about 35mm) It creeps up slowly but surely in the weeks after radiation if you do not do the exercises faithfully.
I beat it the first time around but this surgery nailed me although I am making progress with the Therabite (went from 12 mm to 28 mm)
Charm