that's the prices where medical tourism is worth it. I know people that have flown to mexico for teeth and india for hips and both say it's really great if you do your research you'll save a fortune.
Its a for-profit medical service, they don't want to help you they want to make money. According to wiki "In June 2012, a PBS series entitled Dollars and Dentists produced by Frontline in partnership with the Center for Public Integrity described Aspen Dental's business model as one where dental services are advertised at steep discounts, but where patients were subsequently overcharged or given unnecessary treatments" so I wouldn't touch them with a ten foot pole
I had a good experience with implants, but you need to know what you’re getting yourself into. It’s a big chain, and they make money on volume. You’re not going to get the same level of individual care.