Wisdom tooth broke completely out and now nerve ending is dangling, please help?

See an Oral Surgeon. Take some otc pain medication if necessary and see an oral surgeon as soon as possible to remove the tooth before you even have a bigger problem.
Visit your dentist. Sometimes wisdom teeth are valuable asset when healthy and properly aligned, but more often, they are misaligned and require removal. The removal of wisdom teeth is one of the most common procedures.. See your dentist for evaluation and x-rays.