In answer to your question about the costs, I can tell you what this dentist charges. Some may charge more and some less. I choose this one b/c of the years of experience and the aggressive way that cavitations are treated the first time so the need for a second surgery is not necessary.
Cavitation evaluation (2 hours): $495
Hair analysis testing: $41
Full set of X-rays: not sure but covered by my insurance cavitation surgery cost per site: $1,500
You asked about crowns. This dentist does not believe in using crowns as they allow bacteria to get trapped against the tooth and can lead to cavitations over time.
Let me know if you have any other questions. If you would like the name of the dentist I saw who is located in the Northeast, let me know and I will send the contact info to your inbox.