Sorry for your pain and troubles, hopefully it will resolve soon!
A short water fast of two days permanently resolved tooth pain I had after getting a filling close to the nerve.
I found testimonial in this and other videos helpful but keep in mind that 30BaD guidelines promotes no more than 3 days of water fasting on your own and only with supervision after that:
"Water only fasting in cases of acute illness or injury"
30BaD does not allow the promotion of unsupervised water only fasting for more than 3 days. Suggesting otherwise is dangerous to the health of our members and will not be supported here.
"While fasting for a day or two is rarely a problem if you are healthy, "it can be quite dangerous if you are not already eating a healthy diet, or if you’ve got liver or kidney problems, any kind of compromised immune system functioning, or are on medication -- even Tylenol," says Fuhrman, a family physician in Flemington, N.J..
As for helpful recommendations to help your long term health for teeth, you may find the tips in the 30BaD welcome wagon helpful: http://www.30bananasaday.com/profiles/blogs/30bad-banana-wagon-tour
To sum up- keep your fat intake at around 10% or below, eat daily greens in abundance, watch out for starches and oxalates, and eat enough calories.
I found this blog helpful for oral hygiene tips: http://health101.org/art_blog_dental_issues.htm
Clove oil put onto the tooth can help relieve pain temporarily.
Hope this helps!
You can try clover oil- 1 or 2 drops on a cotton and then put it on the tooth - it helps me immediately when nothing else helped.
Maybe you are deficient in calcium and that's why yogurt and cheese helped. I guess calcium because yougurt and cheese have almost no magnesium. One cup of nettle tea infusion is around 500mg of calcium. A good source of magnesium as well.
Addtionally, I took care of an elderly man 2 years but stopped to improve my bones and body function, I think time around him caused my bone pain.
It seems stress depleted your body of minerals like magnesium and calcium. Unfortunately you probably can not get enough minerals from plants because the soil is depleted in most countries - probably supplements are a good idea.