Please help me help my mother save her teeth!

My mother is only 53 years young and has lost her right limb at age 50 due to diabetes. She will be celebrating a 54th birthday on July 16 of this year and I want to do something for her that she so desparately needs.  SMy moms is in good spirits and has the kind of drive and ambition that even I, at 36 dont have.  However; my mother is suffering with her teeth and has been now for the past six months. After having an exam last week, I was informed that my mom would have to undergo a dental procedure that would cost nearly 6500.00.  I am not sure if this is a realistic estimate, but Ido plan to do research to find out what other options are available.  The unfortunate thing is, that my mom is in nursing home and has been feeling really depressed for the past few weeks, and after telling her that I did not have the funds to pay for the procedure (I am umemployed...praying and searching faithfully for a full job) she became very angry due to the pain she has been enduring.  My mother thinks that  Idont care about her or her health which is not true at all, I am just in a very broke state right now and dont have the funds to cover those expenses.  She does receive Medicare, however;  they wont cover the expenses......therefore, I am desperate to find a dentist  or anyone who knows of anyone who can help my mom in her time of need.  She is a dear sweet lady and I just want to let her know that I love her and that I want to make her feel like her good old self again...........well as least as much as possible.  I found this site today and I was searching for information, so if anyone has any information to help my mother who or others with disabilities and limited help and income, I would be most grateful.

Peace & Blessings,

Chriss