Practise Orthodontic Assisting (OA) with a short sample and answer explanations. These are independent learning materials, not official exam questions or a pass prediction.
Exam outline and official sources
Dental Assisting National Board (DANB) · DANB Orthodontic Assisting Exam Outline and References, effective July 1, 2022, currently linked from DANB's OA examination page when reviewed on October 13, 2026. The workbook label 'Certified Dental Assistant - Orthodontic Assisting (OA)' combines separate credential terminology: OA belongs to Certified Orthodontic Assistant (COA) certification, while CDA comprises GC, RHS and ICE. This material covers the verified OA component examination and preserves the assigned canonical slug.
This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.
- Orthodontic Assisting | DANB
- Apply for Exams | DANB
- Orthodontic Assisting Exam Outline and References
- 2026 COA Application Packet
- 2026 Candidate Handbook
- Orthodontic Glossary: Braces & Dental Terms Defined | AAO
- Overjet vs. Overbite | Invisalign
- Orthodontic Elastics: Are They For You? | AAO
- Types of Consent | American Dental Association
- X-Rays/Radiographs | American Dental Association
- ADA and AAOMR Patient Selection for Dental Radiography and Cone-Beam Computed Tomography: Clinical Recommendations
- Living with Braces: Food, Oral Hygiene, & Care Tips | AAO
- Orthodontic Adhesives and Primers | Solventum
- What Is an Orthodontic Emergency? | AAO
- How to Take a Dental Impression – FAQs | Zhermack
- Red Cross Guidelines | American Red Cross
- Standard Precautions | CDC
- Oral Hygiene Tips During Orthodontic Treatment | AAO
- How to Clean and Care for Your Retainer: A Complete Guide | AAO
- Uses and Disclosures for Treatment, Payment, and Health Care Operations | HHS
- Anxiety | MouthHealthy, American Dental Association
- Fluoride: Topical and Systemic Supplements | American Dental Association
- Informed Consent/Refusal | American Dental Association
Orthodontic Assisting (OA)
Start with 20 free questions, then review the explanations and any topics you missed.
An orthodontic record describes the upper incisors as 5 mm ahead of the lower incisors horizontally, with 2 mm of vertical overlap. Which term describes the 5 mm measurement?
Orthodontic Assisting (OA)
Flashcards
I. Evaluation
A.2.c — Tooth surfaces
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