The CRFDA is a written exam and does not contain a practicum part.  The educational requirements for Level II contain significant number of didactic, lab, and clinical hours towards practical experience.  There is no way that by completing ONLY the CRFDA exam would a dental assistant be competent enough to execute the duties under Level II. However the CRFDA exam could be used towards the credential requirement prior to entering a Level II educational program.  The board may want to consider this option.