A well known problem? An article saying "Some parents have limited knowledge concerning their children's OHRQoL.", a new york times article, a psychology today article and a tvtropes page? This is extremly light evidence. You can defend anything with a vaguely related study and a few press articles.
I don't personally believe in learning about anything from HN, only of things, so at this point if you want to know more I recommend talking to a pediatrician, as I'm not an expert and may (unintentionally) mislead, misdirect, or misinterpret.
Maybe it's not well known! Maybe it's extremely rare! Maybe I've got biases! Who knows, I certainly wouldn't. You have no idea what my qualifications are, what my expertise is, and generally there are no social consequences for me spouting nonsense, so there are not a lot of good reasons to listen to whatever my argument may be, right or wrong.
