DANB’s Oregon Expended Functions-Orthodontic Assisting Practice Tests (ORXO) Incoming orthodontic assistants need to understand archwire sequencing, bracket positioning terminology, and the clinical reasoning behind force application before tackling ORXO questions. Oregon’s expanded functions scope includes direct patient care tasks? from taking impressions to assisting with appliance adjustments? that demand precision beyond general dental assisting. Familiarity with orthodontic-specific infection control protocols and state regulatory boundaries strengthens performance significantly.
| Exam Name | DANB’s Oregon Expended Functions-Orthodontic Assisting Practice Tests |
| Exam Code | ORXO |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
