Let me preface this by saying my dad raped me and my mom supported him in it and encouraged him to do it. In real life. I don't really talk to either of them anymore. This may help the interpretation.

I was at my (irl deceased) grandmother's house with my sister and my mom. I had a filling come out of my back tooth and there was a gaping hole. It hurt to chew. I tole my mom and she refused to let me go to the dentist in Arizona (where my grandma's house was) or go home to california, which is what I wanted. I told her I was an adult and I could get there on my own if I had to, which she didn't believe. I said "I'm 26 and if you don't start treating me like an adult, this will be the last time you, me and grandma are all here together!"

WTF? I keep having all these dreams that I'm an adult, but living with my mom, being treated like a child and my teeth are always broken. I go to my mom for help and she won't help me? Thoughts?

First of all, I'm very sorry about what has happened to you in your past.

Dreaming about teeth is very common in dreams.

In waking life, the condition of your teeth can reflect your overall physical health, so dreams about teeth can be a message about your physical, emotional or mental health.

I think the dream might have to do with your mother supporting what your dad did to you. In your dream, you have a problem with your tooth and your mother refuses to let you go do the dentist. That's like what happened in real life - your dad raped you and your mother refused to acknowledge that there was a problem.

I think that in the dream when you tell your mother to start treating you like an adult, it's really your unconscious mind telling yourself that you should grow up and get over something that happened to you in your childhood.

What were your grandmother and sister like to you when you were a child and these things were happening? That would help to explain their presence in the dream.

It's very common for people who have had traumatic childhood experiences to have dreams about it when they are adults. It is part of post-traumatic stress. If dreams like these are disturbing you a lot, you can seek counseling to deal with post-traumatic stress.