Avista Capital Partners has announced it has acquired Spear Education.

Spear, based in Scottsdale, Ariz., is dental education provider. Founded in 2007, the company’s content includes on-demand videos, annual hands-on workshops and study club modules.

Avista, based in New York, makes control buyout investments in middle market healthcare companies. Founded in 2005, the firm focuses on the following healthcare subsectors: pharmaceuticals, medical devices, outsourced pharmaceutical services, distribution and consumer-driven healthcare.

Terms of the acquisition were not disclosed.