I think it's fine to explore your options, but given that you "need" ortho research to match, I would say if you have any interest in it to just see if you could jump on a project with someone just to get your foot in the door and meet some people. This kind of stuff will be even more important since (I'm assuming) step will be P/F for you. Applying to the ultra-competitive specialties is definitely easier when you're playing the long game.