American Board of Orthodontics · 2026 Written Examination Study Guide, revision 07.02.2025, with current online Examination Specifications checked on 2026-10-17. No separate effective date is stated for the online specifications. The workbook label 'American Board of Orthodontics (ABO) Certification' describes the broader certification pathway; these materials cover its Written Examination component.

This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.

• ABO — Become Certified
• ABO — Written Examination
• ABO — Examination Specifications
• ABO Written Examination Study Guide 2026
• ABO Scenario-Based Clinical Examination Study Guide 2026
• ABO Written Examination Reading List 2027
• Osteocyte regulation of orthodontic force-mediated tooth movement via RANKL expression
• MedlinePlus Genetics — RUNX2 gene
• MedlinePlus Genetics — Cleidocranial dysplasia
• MedlinePlus Genetics — Achondroplasia
• PTH1R Mutants Found in Patients with Primary Failure of Tooth Eruption Disrupt G-Protein Signaling
• CDC — Best Practices for Dental Handpieces
• CDC — Standard Precautions
• NIDCR — Cleft Lip & Palate
• NIDCR — Sjögren's Disease
• ADA — X-Rays/Radiographs
• NIDCR — TMD
• CDC Field Epidemiology Manual — Designing and Conducting Analytic Studies in the Field
• CDC Field Epidemiology Manual — Analyzing and Interpreting Data
• CDC — Updated Guidelines for Evaluating Public Health Surveillance Systems
• CDC — Diagnostic Sensitivity and Specificity for Clinical Laboratory Testing
• NIST — What are confidence intervals?
• EFP — Periodontitis: Guidance for clinicians
• ADA — Fluoride: Topical and Systemic Supplements
• ADA — Types of Consent
• AAPD — Management of the Developing Dentition and Occlusion in Pediatric Dentistry
• OpenStax University Physics — Torque
• MIT OpenCourseWare — Elastic Properties of Materials
• ABO — Cephalometric Review, revision 3.14.2025
• ABO — Cast/Radiograph Evaluation Reference
• Evaluation of root resorption in relation to two orthodontic treatment regimes: A clinical experimental study
• The super-elastic property of the Japanese NiTi alloy wire for use in orthodontics
• Post-treatment stability after 5 years of retention with vacuum-formed and bonded retainers—a randomized controlled trial
• ADA — Caries Risk Assessment and Management
• AAPD — Use of Local Anesthesia for Pediatric Dental Patients
• AHA — Part 7: Adult Basic Life Support, 2025 Guidelines
• Anchorage reinforcement with miniscrews and molar blocks in adolescents: A randomized controlled trial
• Relationship between cervical vertebral maturation and mandibular growth
• Single implants in the upper incisor region and their relationship to the adjacent teeth: An 8-year follow-up study
• ABO — Downloads and Resources
• ABO — Grading System for Dental Casts and Panoramic Radiographs