Can anyone tell me what my recurring dream means?

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Ever since I can remember I have had a recurring dream and it has always made me wonder what it means. The dream itself isn't recurring, it's the theme that always stays the same. In these dreams, I always lose a tooth. Sometimes it is because I got into a fight or car accident and the tooth is knocked out. Other tiimes I'm like a little kid with a loose tooth and it just comes out. Sometimes the tooth is just rotten and rots away. Anyone have a clue what this means?