Tyree & D’Angelo Partners, an investment company from Chicago, sells Elite Dental Partners, a provider of non-clinical business principles and support services, to Cressey & Company, a private equity firm. Terms were not disclosed. Merrick Axel, Partner at Cressey, commented, “Cressey is excited to partner with both Management and TDP to continue to build on Elite Dental’s impressive record of growth and success. We look forward to working with a team that puts the dentist and quality clinical care at the forefront of the organization.”