I am 27 years old and am interested in possibly pursuing Dentistry. I have been interested in it for a long time, but never pursued it. I don't know if it was because I felt too immature to take on the work load, or just got comfortable in moving up at work. Well I am now interested and had a few questions for you guys. Obviously I have not had any Biology, Chemistry, Physics, etc for a long time. Should I take these classes over again, or just study hard core for the DAT??