Actually nationally women made up 38% of enrollees 10 years ago. Whether Baylor, the school that he went to, was ahead of the curve or not I don't know. But a 62/38% difference I wouldn't call dominating the gender makeup by males.
You women need to calm down! (My wife would kill me if she knew I wrote that!) No one is bashing your intellect or abilities. The reality is that when you go to the dentist office, you see women in the front office, a woman that takes your x-rays, a woman that cleans your teeth, and usually a male dentist at the end. (That's more a factor of more males actively practicing then an unequal gender ratio) A lot of women at some point choose to do something a whole lot harder, not to mention more important, in raising a family and so they scale back their work. It's great that more women are getting that opportunity.
The truth however is that the 9/1 (or whatever it is) female to male dental hygienist ration has a lot more to do with the stereotype than the 6/4 male to female dental school ratio 10 years ago.
