I'm so sorry this happened to you especially at Christmas.
My teeth are crumbling now . I am 57. My friend says it's the menopause, she's 56 and has similar problems. Try and find a dentist who specialises in nervous patients. I have a private dentist who specialises in this and is very good. They are pricey but I feel it's worth it. They have been great with me. I have had 2 crowns and having another in January. I had one tooth extracted as it literally crumbled away during March 2020. I was scared but it was soon over and they were very good at the dentist. The dentist I saw was specialised in complex extraction. There was very little of my tooth left in the gum but I can honestly say it was quick and straightforward.
Wishing you courage and strength to deal with this.
You will feel so much better afterwards.
How do I help my sister to stop feeling like a victim?
"the sensible one" ( friendship)


