text: why are my front teeth kind of see-through? my two top front teeth are kind of see-through at the bottom, anyone know why? is this due to erosion of the enamel? i had braces when i was younger, and the back of my front teeth sat on top of the brackets on my lower teeth when my mouth was closed - could this have caused the problem? do you have stomach acid problems (acid reflux)?  my mother just had to have her teeth bonded on the bottom b/c they're eroding from her bad acid reflux.  bulimia can cause that too.