Really, you don't have to get an x-ray immediatly. If the bone was hit ... what are you doing to do anyway? X-rays won't show soft tissue damage if a tendon or ligament was hit.
My gelding had a similar injury (but MUCH worse) back in 2003. Because the injury was worse, it took an entire year to heal. It didn't look very good when it was done. The coronet band was damaged. He had perfect feet before the injury, but then had a turned hoof because the damaged side grew faster than the undamaged side. However, by some miracle, he was 100% sound on it after he healed.
I definitely had to keep a very regular trimming schedule on him. We kept the toe as short as we could to help him break over that bad hoof.
You'll just have to wait and see how your horse heals up. Best of luck.
∞•*˚ Βгįťţαňγ ˚*•∞
It is not enough to know how to ride; one must know how to fall.