Dr. Halstrom, I don't know what the percentage is, but many people have insurance. You have the dental work done, you give them your insurance information, and the insurance company knows what dental work has been performed before you even leave the office. They know all about what you just did.
I am assured that all of you protect the information you have, but then the insurance company has information on the work you've just done. I don't know whether there are restrictions on the insurance company or whether you're concerned about that.