If there is any vomitus, go for an x-ray. She should pass it though (my dogs have eaten things that make me hang my head in shame), but if she becomes lethargic or starts vomiting, it has to be removed surgically.
If your dog ever swallows anything thats safe to bring back up again, you can give her 5-10mls of hydrogen peroxide orally. This will make her vomit her stomach content. This should never
be done with bones or anything sharp that could tear on the way back up. It will cause major problems.