(((((Sally)))))
I can sooo relate. Living alone with a disability really is the pits.

My townhome is on one floor except for the basement where I have a chairlift like you with a scooter downstairs. The basement is a walk-out to the patio and back yard so I need the scooter for that. However, here on the main floor, there is no way out with my powerchair. The front door has one step down to the porch and another to the ground. The garage is two steps down and lately I need someone to help bend my legs to get in the car and only drive into town, 1/2 mile.
After crawling around on the floor for an hour after a fall last year, I broke down and bought a Life Alert. Those commercials used to seem so funny -- "I've fallen and I can't get up!" -- until it happened to me. I wear mine as a bracelet instead of around my neck.
With the help of two friends who grocery shop, clean the house, do outside chores, etc., I'm still getting by. I do have to pay them though. Cherie's link for the groceries is interesting, have to check it out!! But I never go anywhere and only see my "kids" occasionally.
For me, the depression of isolation is becoming a battle, not really scared, just lonely. It's time for a different AD here. And yes, as others have mentioned, when we're feeling extra weak and fragile due to another physical problem like your teeth situation, it really throws us for a loop.
Thank goodness for this board and others for the "human contact" we all need. Sometimes I'm too weak and tired to post, but can at least read.
I know you'll make the right decision for yourself -- you're stronger than you think!! We can do this!!!!! Just wanted to add my support and love, knowing we're all in this "leaky boat" together!
Love and hugs!!!