So what you're saying is, the dental industry is ripe for disruption by someone who can set up a fancy office and hire a half competent nurse? Come on, YCombinator, do your thing.

Nope the regulation is too strict. You either must be a dentist or a hygienist to do any sort of dental work and there are strict limits on what a hygienist can do. To avoid regulation you must have an actual dentist doing everything. Now, the robot angle may open something up. There is already innovation in the manner you are thinking, but it's private equity basically buying the cheapest / worst dentist they can and scheduling them to do like 60 fillings a day in a different location each day of the week. Obviously the goal is extracting the most profit though. They will push all the most expensive procedures that non-dentist can do like periodontal debridement and measuring the gums etc.