There is another appliance called the dynasplint. Im not very familiar with it but think its similar to the therabyte.

If you can get back in a routine with the popsicle sticks again your jaw opening will immediately improve. You have to be dedicated which isnt always easy. There are way more excuses not to do the exercises than there are to do them (at least for me). When doing the popsicle sticks, are you inserting another one in the middle of the pack of sticks? You should be doing it on each side. At least thats how my physical therapist showed me, not in the front. I went thru heck years ago with radiation damage to my teeth making them so loose I thought they would just fall out when I was talking. I hope you have better luck than I did with keeping yours.

Veneers are kinda like paneling for your teeth. They are made of a very thin material that is bonded directly onto your teeth. Im not sure if the tooth has to be filed down first. Dentures are the whole upper or lower teeth or sometimes just a partial of it. As far as dentures go, molds would have to be made in order to get them. The molds are big, much too large for someone struggling with trismus. Thats one of the main reasons why I have been unable to get them.

Best wishes with your dental issues!