While you aren't stating your opinion on the issue, the possibility of a particular field losing jobs due to some advancement in technology is almost never a va

While you aren't stating your opinion on the issue, the possibility of a particular field losing jobs due to some advancement in technology is almost never a valid reason for restricting that technology. Even if tooth decay happened to no longer be a service dentists needed to provide, the market would adjust the pay and number of dentists accordingly to match the new market. This might suck for dentists over near future, but people would be much better having to no longer worry about tooth decay. Besides, gum disease is a probably a much bigger issue for people's dental health anyway, and that would be just as big a problem after this technology was released.