Teeth falling out is one of the most frequently reported dream images, and it's rarely about actual dental health -- it tends to surface around anxiety, a fear of aging, or a sense that you're about to lose control over how others see you. The intensity of the dream usually tracks how urgent that underlying worry feels, not how bad the outcome will be.
The biggest difficulty with mankind today is that our knowledge has increased so much faster than our wisdom. (Frank Whitmore)