Written Examination

The Written Examination is a comprehensive exam that assesses the examinee's knowledge of basic sciences and clinical concepts based on criterion-referenced testing. Examinees will be measured against the skill and knowledge represented by each test item. The difficulty of each item for the minimally-competent examinee is the basis for setting the Criterion Standard, one that is represented as an absolute standard on a Benchmark Scale updated every five years.  The ABO Written Examination is administered at Scantron Testing Centers located in the U.S. and Canada.


Eligibility Requirements:


1. Applicant must have graduated or be currently enrolled in an advanced specialty education program in orthodontics and dentofacial orthopedics in the United States or Canada, accredited by the Commission on Dental Accreditation (CODA). The requirements for such program are described in "Standard 4" in the link below.


An orthodontic resident must have completed a minimum of eighteen (18) months of his/her program by the written examination date to be eligible to take this exam.


2. Alternatively, applicant may apply if they are in an approved "Advanced Standing" program described in "Standard 5" in the link below.


CODA Accreditation Standards for Advanced Specialty Education Programs in Orthodontics and Dentofacial Orthopedics


Listing of CODA Accredited Advanced Specialty Education Program in Orthodontics and Dentofacial Orthopedics