I plan to have a hygentist or two and will only do hygiene occassionally myself, but I did shadow a dentist a couple of times several years ago that ran a large office (10 operatories between 2 detnists) and they had no hygentists. They had probably about 8 dental assistants that set up and prepped each patient and they would run (literally) between patients. It was a crazy office, but they made a ton of money. They were both super fast and efficient and they said that hygentists cost too much and were too slow. It was hectic and not the kind of practice I want to run, but it was interesting to see. For most of us, I think having a hygentist or two is the way to go, but you can certainly still be successful if you decide to do the hygiene work yourself.