My dog's tooth came out?

My dogs tooth just came out! It was one of the two largest ones on the top. It wasn't rotted or bleeding or anything. I just found it on the groun because she spat it out. She isn't in pain or anything. But she has a habit of chomping her teeth really hard when she gets excited. Would that cause it? Should we call the vet? I'm not sure yet if she's had trouble eating because this was just a few minutes ago.