No problem.
If you apply to at least several programs, I'm fairly certain that with those scores even if your part 1 was a little low, you would make the interview list at some. Let me put it this way--I've known some people with worse scores than that who get into ortho. Obviously some programs are more competitive than others, and some favor their own grads. If the dental school that you graduated from has an ortho program, definitely apply there since they already know you. Although I am not certain, I heard UNC favors their own graduates and that it's tough for anyone else to get in. MUSC's ortho program (where I went to dental school) takes an even mix of own-grads and out-of-state grads. WVU (where I am in ortho residency right now) is pretty fair as well. Spending a little bit more money to apply to a few more places is a drop in the bucket compared to the career option about to unfold in front of you. As I was once told by a college professor, "The only way to have a good idea is to have a lot of ideas."
Good luck!
Mike