Other Meanings of Teeth Dreams. Lying: It is a common belief to dream of teeth falling out that it means you are lying or have been lied to. This is especially true if you dream of false teeth, but not always the case in every dream.Again, it is very important to think about the context of the dream!n this post, we'll do our best to explain the different meanings of teeth in dreams, and how you can use these dream interpretations to help you unlock the meaning of your dreams.