I would say there is quite a bit of psychology in terms of dealing with patients and other people in an intimate setting (being a foot away from someone's face constantly). But they are very different fields. If doing something because it is too "intense" will deter you then definitely should consider something easier. Dental School is all what you make it. If you can handle stress/deadlines well, use your hands and be able to talk to people then dental school will be fine. I was in the army for 4 years and deployed to Afghanistan for a year where I was mortared every other day. Project deadlines and exams don't bother me one bit lol.