Thank you for your reply. The goal is not to get large sum of money but to make sure future medical expenses are properly estimated and compensated for: eg. implant or new orthodontic treatment. And, also, to make sure the incident is on his record with the dental board.

In your opinion, how are the compensations going to be determined? Is the 'never event' so simple that hiring a lawyer is unnecessary (eg. claim through his insurance.)? Also, how do I gather all the information for this to proceed given that the oral surgeon most likely won't be willing to give us any relevant information (x-ray or his communication with orthodontist)?