Earl - Sorry you have all this going on. I do think a second opinion would be a good idea. Also, check out the Arizona School of Dentistry & Oral Health. They might have a program that would work for you.
www.atsudental.com/home
AZ doesn't have the best healthcare system. AHCCCS/Medicaid will only cover dental and vision costs for children. It doesn't do it for adults. Heck, why would a single parent need their vision and teeth. LOL. j/k
I also know that some clinics offer free/reduced cost for dental care around the state.
Good luck!!!