Hello, I am 17 and I haven't been to a dentist in about 11 years. I have been trying to go but something comes up and I think i am afraid to be judged by how they look. I have been drinking tea and i think that is why my teeth are yellow. I brush everyday and thy don't change. I stopped drinking tea. My relatives say it can be genetic. I now have some enamel coming off some of my front teeth. It is hardly noticeable because it is close to the top of the teeth. Please help.