all CDCA participating states. 02121/2015 Anterior Restorative Fail Less than 75 05/03/2015 Anterior Restorative Pass 75 or greater 02109/2015 Diagnostic Skills Examination Fail Less than 75 04/08/2015 Diagnostic Skills Examination Pass 75 or greater 10/22/2014 Endodontic Pass 75 or greater 02121/2015 Periodonta