it won't hurt teeth as in it won't mess up the enamel (as long as your enamel is strong). BUT if you swallow it, it's very irritating to the throat and will most likely cause a vomitting episode.
-i've had poems i've written be published in poetry collections 3 separate times
-i can read & write hangul (probably not a cool flex on here, but no one i've met in person could)