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1994 JADA: Many new graduates were having difficulty making a successful transition to dental practice because of high levels of failure of the licensure exams. “Failures ranging from 50% to more than 80% were noted at certain exam sites.”
1995 JADA: “more than 1,000 of 1995 dental graduates failed their initial licensing test.”
1996–2000 ADA hosted a series of meetings on the subject of dental clinical licensure examinations.
March 1997 12–point Agenda for Change which was developed and accepted by the ADA, ADEA, AADE and ASDA
2003 New York PGY–1. The state of New York adopts law to allow the option of completing a residency program of at least one year in length (PGY–1) in an accredited postdoctoral program in lieu of the clinical licensure examination as a pathway to licensure in the state.*
2003 ADA HOD amended its Policy on Dental licensure and Guidelines on Dental Licensure to state that the clinical examination requirement for initial licensure could be met by successful completion of a postdoctoral program in general dentistry or in an ADA recognized, at least one year in length.
April 2004 ADA Council on Dental Education and Licensure endorsed the concept that a dental student who has graduated from an accredited program should be able to take a single clinical examination that would have national acceptance.
June 2004 American Association of Dental Examiners passed a resolution calling for the development of a national uniform dental clinical examination administered by state and regional testing agencies.
Oct 2004 ADA HOD approved Res. 23H-2004, directing the appointment of a National Clinical Licensing Examination Consensus Committee to advance the development of a common national examination.
2005 American Board of Dental Examiners (ADEX) established which is responsible for the ongoing development of the American Dental Licensing Examinations (ADLEX), a national exam that is available for use by individual state and regional testing agencies on behalf of their member states.
July 2005 The Council of Interstate Testing Agencies (CITA) was formed—making it the first testing agency to be formed since the original four regional dental examination agencies were founded between 1969–1976.

Completion of residency program mandated in NY. The state of New York no longer requires clinical examinations as a pathway to licensure.*

2007 California (advanced general dentistry only), Connecticut, Minnesota and also offer the option of PGY–1.*
2008 Washington offers a PGY–1 option.*
2009 CRDTS withdraws from ADEX in June; begins to administer its own examination
2009 The ADA House of Delegates refers Resolution 26S–1, to study a potential NBDE Part III exam to the Board of Trustees work group
2009 In June, Minnesota announced that it will administer the Canadian Objective Structured Clinical Examination (OSCE) to graduates of the University of Minnesota and accept the results for licensure. California is in the process of investigating the use of a hybrid portfolio examination.*
 2010 California signed Assembly Bill 1524 to allow a dental school-based portfolio examination process in September.
 2010 As a follow-up to resolution 26H-2009, the 2010 House adopted Resolution 42H-2010, which initiates a Request for Proposal process for development of a portfolio-style exam for licensure purposes. A new workgroup was formed with multi-agency representation to oversee the RFP process.

*Disclaimer: We are providing information here that may not be accurate or complete when you view it; you should not rely on this summary but check with the state licensing authorities to get complete and up-to-date information. Please visit the American Association of Dental Boards for current state licensure requirements and information.