Don't be ridiculous. Don't take it unless you really enjoy it. It's not going to help you in dental school. Take the courses you like and that are interesting, not the ones you think will help you in your graduate program. You'll get plently of class time in dental school where they teach you everything you need to know... it's really not that difficult. You'll only get one chance (that's in college) to take random interesting courses that you won't get an opportunity to re-visit as you begin to specialize more and more. Plus, it never hurts to take a class that will bump up your GPA.