Aspen Dental is a chain of nearly 350 offices in 22 states managed by a company owned by a private-equity firm. It is part of a fast-growing industry of corporate dental practices, many of which specialize in serving people who cannot afford to go to the dentist, a group many dentists ignore.

By marketing to people who haven’t seen a dentist in years, Aspen Dental often gives new patients treatment plans costing thousands of dollars. The Center for Public Integrity (CPI) and FRONTLINE spent months examining Aspen Dental and found that the same business model that makes Aspen Dental accessible to people short on cash can also lock people into debt and has led to complaints of patients being overcharged or given unnecessary treatments.

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Access the full story here. (Also includes 53.41 min video clip on the state of dental care in America and rise of corporate dental chains)