you seriously question it's relevance to what a you think a dentist does, you actually do end up using as you begin to experience what a dentist actually does Asking any person from the street if they would prefer a dentist that did well in his classes, or someone that just skimped on by, I'm sure they would prefer the A student. It would probably also scare a patient that you would rather not put that much effort into your dental education. If you are a 100% sure you are not interested in specializing like I was you should do the following. Study just enough to know the information in the meaningless classes like biochem to pass the class and pass boards (still a grip of studying), but dont kill yourself like most people. Take time to enjoy your family or personal time and dental school wont be as bad for you as most of your classmates. Also since you are going to be a GP make sure you get a good clinical experience by doing extra cases and assisting in the residency programs available at your school in your spare time, this is a great way to expand your knowledge and get a feel for the scope you would like to practice. There is a tone of GPR programs and grades dont matter for 99% of these programs. This is what I did and dental school was not that bad for me. I learned alot clinical wise at my