I am a recent DDS grad working on my MPH (full-time) this year while working (very part-time). My MPH will be in Health Policy and Management and I get this question all the time: what exactly is public health and what are you going to do with it?
Without writing a novel, I have found my new knowledge of public health and our healthcare system very valuable as a healthcare practicioner. I learn about how policies are made, what politics affect policies, what management of a healthcare organization (big or small) entails, and that there is much more that going into providing healthcare to and protecting the health of our population than just what a dentist/physician does one-on-one with his/her patients.
I do not spend all day learning about "poor people." We use (somewhat incorrectly) the term public health when describing FQHCs, Medicaid clinics, the like, whereas public health really isn't out there for *treatment* of disease, but moreso prevention and protection for all. We deal with air quality, water quality, zonings for grocery stores in certain neighborhoods, injury prevention, and when dealing with dentistry--water fluoridation, school-based prevention programs like mouthrinse/sealants, getting coke machines out of schools, and surveillance of the disease levels within our states. This is only a small summary of what you will learn in a brief overview year of doing an MPH. I am so glad I am doing it.
So how am I going to use it? I plan to specialize in pedo, and after that--either do academics, public health administration, or enter a group practice. I want to be a dentist as long as physically possible, and it never hurts to have this broadened perspective about our healthcare system and delivery. I find it making a difference in treating patients...while I still work one-on-one with patients, I see that there is a larger picture in the mix. With an MPH, I have lots of opportunities open to me in the future. Sure, I can become a dental director of something, work on writing grants, or I can just be an awesome public-health-minded dentist! I like researching and answering oral health epidemiological questions, dealing with health policy issues (such as Medicaid/SCHIP as one example), and trying to find solutions to improve access-to-care, so that dental/oral health care can be provided (even at just a basic level) to all, so that infections aren't being treated in the emergency room, costing the healthcare system thousands of unnecessary dollars.
OK this turned into a novel, but I am happy to answer any more questions. I know Arizona places an emphasis on the core courses of public health (epidemiology, health behavior, environmental health, biostatistics, health policy), but I wish all dental students were exposed to more of these things in dental school. Perhaps less biochem hours and more public health...?