Physical Danger
Chemicals, diseases, and sharp canines...yikes.
What? This? It's just a small needle...wait 'til you hear what's inside it (source).
You might think an oral surgeon's biggest concern would be a patient with an overactive bite, chomping away on your finger. And you might be right. That could hurt. Those gloves aren't meant to be protective. But they are meant to keep you sanitary. If you're not careful, you can contract a virus or infection from one of your patients.
Dental professionals can also face musculoskeletal problems (source) from prolonged periods of sitting. So take a close look at that chair of yours, and consider investing in a more ergonomic chair. You'll have the money to spare.