I've had dreams about teeth falling out too. I know think I know what they mean. It's about your health: a natural diet, natural products. But one thing in particular: poisons!
You probably have mercury silver dental fillings. Mercury is the most powerful poison in the world! See
www.mercuryexposure.org
Years ago I didn't trust dentists, but never looked after my health either. I should have changed my lifestyle to a more natural one, changed my diet, my toothpaste to one made of 100% natural ingredients(fluoride is another poison), then used crystals to repair my spiriual, emotional & physical health(eg. amazonite repairs tooth decay, fluorite repairs tooth enamel/pain).
Oils are important: coconut oil(from Asian food shops) can repair the body, diseases, tooth decay, dry skin/lips. Extra virgin olive oil is a vital oil as it has omega 9 oils. Flax seed oil has omega 3 oils.
Natural herbs are vital too eg. garlic, cinnamon, ginger, cayenne pepper.. (from Asian food shops). See
www.homeherbs.com for extensive info about what each herb does for health.
I should have changed my drinks too: Jasmine & parsley tea is wonderful for detoxifying & heavenly in taste. I now have an undersink water filter(see my page
www.waterfilter.co.nr).
I know realize that our health is the no. 1 most important thing, especially as affects how much psychic ability/healing we have.
Your spirit guides/guardian angels who you interact with in dreams(you may or may not remember these) will have been concerned about your health as it affects your psychic ability, and how much self-control you have.