Need for dental care due to MS

I was diagnosed with Multiple Sclerosis in 2004 and could not afford the medications required to control the disease, so I enrolled in a 4-year study of investigational medications. As part of the study I was given a series of drugs, which include a number of cancer medications that nearly destroyed my immune system, and ultimately lead to massive tooth decay and dental root resorption (my body is eating away at the roots of my teeth).  Over the past few years I have spent thousands of dollars trying to fight this battle, but the money is gone and I still need tens of thousands of dollars in dental work.  Currently I am living with a number of abscesses that must be treated quickly before they take a greater toll on my overall health.  I am rapidly losing all my teeth and the dental surgeon says that I need to have extensive bone and dental implants.  I'm a single father raising a 10-year-old little boy and his needs come before mine. Without help there is no way I can afford to have this vital dental work done. It is difficult for me to ask for help, but I feel I am out of options and any little bit is very appreciated.