Liz, I respectfully disagree. While it may not feel like a victory, it truly is. This practitioner will never make that mistake again, which is all you could have acheived in any event. You have a solid foundation for your civil suit -- the fact that he did not permanently lose his license is immaterial. As others have said, no result could undo what has been done or bring Robin back. You have raised awareness and saved untold lives, both through the result in this case and the publicity that has been generated. People reading it will be more aware of their own symptoms, and dentists reading the results will be more careful.
You won, hands down. Good job.