I think you definitely can prove a point,if you apply.The best way to do it is go individually to each program website ,email them and enquire over the fone if they take foriegn grads and in the past has any foriegn grads made it there and if so ,can you speak to them etc.Usually they are helpful and would tell you everything,but just to be defensive make sure of some places that are looking for just the appln fees and not you.Though,I personally do not know anybody foriegn grad in Ortho programs,I do know that there is one in Indianapolis that took a foriegn grad,and another one in minnesota.The rarity of of such a thing happening has to be verified too.