2Pyle M, Andrieu SC, Chadwick DG, et al. The case for change in dental education[J]. J Dent Educ, 2006, 70(9):921-924.
3World Health Organization. World health statistics 2008[M]. Geneva, Switzerland: World Health Organization, 2008:5.
4Seldin LW, Oversight Committee, American Dental Association Future of Dentistry Report. The future of dentistry: An overview of a new report[J]. J Am Dent Assoc, 2001, 132(12):1667- 1677.