What does it mean when you dream of teeth falling in your hands?

This dream seems to express your fear of being out of control and without influence. The meaning of the car accident depends on whether you or the friend was driving the car, because the driver is in control. Then losing teeth symbolizes a loss of power, strength and potency, much like "a toothless lion." Together, the two images present an expression of losing control and being left powerless and ineffective.