There are many theories about what teeth represent in a dream. Teeth can represent smiling and therefore could represent happiness or joy. They may also represent your sense of financial stability. Another meaning of teeth is communication. If your teeth fall out in your dream, consider if you’ve been having difficulty communicating with someone, if you’re having concerns about your financial stability (i.e. when your teeth which are normally a constant stable part of your body fall out, you are losing your sense of security and stability), or if something in your waking life has affected your happiness in a negative way (like losing your ability to smile/show your pearly whites).