I was a sociology major...took the bare minimum of science classes (2 bio, 2 gen chem, 2 orgo, 2 physics, 1 biochem, 1 multivariable calc, 1 stats...that's it), but I also did 800 hours of chemistry research (in addition to 1200 hours of social research). I got into a few of the most competitive dental schools.
For me, spending my undergrad education on biomedical science classes would be a waste of an opportunity. I don't need a professor to teach me undergrad-level anatomy & physio...I bought a textbook and studied it on my own. I think any reasonably intelligent person can do that. No one needs to take advanced coursework to be prepared for dental school. If the school is any good, the dental professors should be teaching it anyway; otherwise, the coursework would be listed as prerequisite. I think you should only major in a science if you are particularly passionate for it, you want to do advanced biomedical bench research, or you are a slow learner and you want to spend your credit studying the same thing twice. If you major in a science only because you think that is what everyone else does, you risk lowering your science GPA on unnecessary coursework.
Most everywhere else in the world, students matriculate into dental school immediately after graduating from their equivalent of high school. They don't take nearly as much time as we do studying pure science and art. Yet, in a number of those countries (e.g. France, Germany), dentists are just as competent in applied sciences as we are. Therefore, I think American dentistry will continue to be the most innovative when professionals bring new types of skills and knowledge to the field. Companies like Google and Facebook recently have been hiring more people with liberal arts and business backgrounds than with tech/engineering backgrounds because they see that that the future of their industry depends on this side of their operations. The same goes for American dentistry. We continue to make great scientific discoveries and technological developments, but the future of our profession depends on economics, politics, business strategy, etc. more than it ever has before. This should be obvious. I got a degree in social research as a duty to my future profession.
Anyway, to answer your question,
@GoodOne456 , it was easy to major sociology and take all of the required science courses. (I mean, it's sociology....) I could have taken at least 4 more science courses without affecting my major, but I chose not to because I thought that learning science by doing physical & quantum chemistry research outside of classes would be a more efficient use of my time. I used the opening in my schedule to study philosophy.
