Urgent care dentistry is s great idea. Ppl can easily wait weeks for an appointment at their normal dentist. The idea of paying a royalty and having an existing office cover all other facets significantly cuts down on cost. As for mobile, I? know of someone who is a hygienist, she packs up a special suitcase on wheels filled with everything she’d have in the office and goes to YOU to clean, take X rates etc, works in NYC, get $400-$700 per visit!