Provides average annual expenses for dental practices, percentage of gross income for each associated expense, data for categories of dentists such as independent, solo and non-solo, and data for both general practitioners and specialists. Volumes available for 1994, 1997, 2000, 2003, 2006, and 2008. This is a downloadable report, which is also available free of charge to ADA members at www. ada. org/freereports.