Dreams about teeth and losing teeth are common. Often the dream is troubling, although it does not contain the same fear or anxiety as a nightmare. In the dream, the teeth often are a concern only to the dreamer. Other characters in the dream either do not notice, or do not care, about the loose teeth.
A 19-year-old woman reports: I am in the bedroom combing my hair. A guy comes in and asks me if I am in a relationship. I say no. Then, he asks me out on a date. I say yes. He is about to kiss me and I ask him to hold that thought for a second. I go to freshen up a bit. When I wipe my mouth, my teeth begin falling out! Every one I touch falls out. No bleeding, just empty spaces in my mouth. I go back out of the bathroom, concerned, but the guy doesn't notice. Meanwhile, I'm a wreck.
In waking life, the woman reports feeling conflicted about ending a relationship with a man. She would like to renew it. Potential embarrassment is preventing her from doing so.
Dreams of losing teeth are often dreams of embarrassment or potentially embarrassing situations. The parallel waking experience could be summed up in the phrase "losing face" publicly.
Other possible teeth-loss dreams may come from physical sensations such as grinding your teeth or having particularly sensitive teeth.
Do your teeth get knocked out or do they fall out for no apparent reason?