remember what you still have control over.
1) your essays
2) letters of rec.
3) your class rank
4) GRE (for some schools)
You need to go and ask the person "can you write me a very positive letter of rec?" If they can't move on. Find someone who will make you shine, sit down and talk to them and give them a copy of your CV so they will know what to write about you. (hopefully they will let you read it, all mine did)
Keep your class rank up!!!! Often many people will decide that they don't want to specialize or after they match they will stop killing themselves for grades, so you can move up a few spots, especially if you don't get in the first time. For example I was #5 in my class and then after I matched I stopped killing myself and just did enough to get out (I got my first ever C and some Bs) so I'm sure I dropped out of the top 10%.
Also, take advantage of your universities writing center to help w/ your essay. They are typically staffed by English grad students who have helped with essays and resume's many times before.
Study for the GRE and kill it!
Also, have a backup plan, do you want to do ortho so bad you would do a GPR and then reapply? If so, you need to apply to some GPRs. I have two friends who when that route and got in the second time. They networked and showed interest in programs during their GPR and they got in. I think that if you truly show interest and explain how bad you want to do ortho, you'll eventually get in.
Lastly, apply to MANY, MANY schools....remember it only takes one. I had pretty good stats and applied to 23 schools, interviewed at 9, and matched at my number 6 choice....(a unique experience, most match at their number 1 or 2), but even though it sucks you need to give 110% because there are others who will give 109%.
Also, your best shot is at your home school, so start kissing some butt, see if you can get your face down in the ortho clinic. Go and talk to the program director about how much you love the program, how much you want to stay, what you should do to make yourself a great candidate. Go again to show him your list of schools and see if he has recommendations. Etc.
Good luck, I know it sucks, I feel for you!