Health expenditures in 2007 totaled $2.2 trillion and absorbed 16.2 percent of the gross domestic product. Should we be concerned about the amount of the gross domestic product that is absorbed by the health sector? Why or why not? Also, how might increasing access to oral health care ultimately reduce the expenditures spent on healthcare and in the emergency room? What steps need to be taken to keep emergency rooms cost effective and efficient places to receive care?