1. Evidence based medicine: what it is and what it isn't;Sackett;BMJ,1996
2. American Dental Association. ADA Policy on Evidence-based Dentistry. Available at: http://www.ada.org/prof/resources/positions/statements/evidencebased.asp. Accessed June 16, 2008.
3. Resolved: that a fifth year of dental education be a requirement. Remarks for the affirmative;Morris;J Dent Educ,1982
4. Views of practicing dentists regarding a mandatory fifth year of training;Lefever;J Dent Educ,2003
5. New York Education Department, Office of Professions. Licensure requirement. Available at: http://www.op.nysed.gov/dentlic.htm. Accessed July 15, 2008.