I figure if you want to get into the field of dentistry, which is full of lucrative job opportunities, you can settle on general dentistry as your focus whether you niche yourself out later or not. Or perhaps you want to be a dental assistant. You graduate and start your career much earlier as a dental assistant, but a general dentist is of course a doctor that has had much more experience, much more schooling and is paid much more. If this were my career path, I would choose general dentistry unless I didn't have enough money to finish medical school. Otherwise I'd go for it, at least until I figured it out, but that's me.