Practise Certified Dental Technician (CDT) Written Specialty Examination — Orthodontics 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

National Board for Certification in Dental Laboratory Technology (NBC) · CDT Examination Handbook and Application, revised March 1, 2026; Orthodontics written specialty outline, printed pages 26–27, corresponding to PDF pages 27–28 when counted from one in the document opened for this repair. This revision date is not identified as a separate blueprint effective date. The assigned workbook label maps to the CDT Orthodontics specialty and abbreviates the issuer's name by omitting 'Laboratory'; the canonical slug is preserved.

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

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Certified Dental Technician (CDT) Written Specialty Examination — Orthodontics

Start with 20 free questions, then review the explanations and any topics you missed.

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A case description states that the lower teeth and jaw are positioned posteriorly relative to the upper teeth and jaw, with the upper incisors projecting forward. Which classification best matches this sagittal relationship?

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