Any time there's an injury of any kind, speculation about the severity of the injury and possible recovery time makes the rounds at 100 miles per hour. Reliable Akus took the initiative to dig into the corners of the Internet and emerged with something worthwhile.
It's a detailed writeup about jaw injuries written back in November 2011 around the time Patrick Eaves blocked a shot with his face.
The point of contact comes nowhere close to Crosby's, relatively speaking. And Eaves' injury required his jaw being wired shut, while Crosby's not facing that kind of torture.