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Updated: Jan 12, 2026
Author Spotlight: 3D Movement Assessment of Maxillary Posterior Teeth in Clear Aligner Treatment
Published on: February 23, 2024
Accuracy of Tooth Movement Using in-Office-Produced 3D-Printed Aligners
M Aarti Rajambigai1, Pragnya Banotu2, M P Kavya3
1Department of Prosthodontics, Rajas Dental College and Hospital, Tirunelveli, Tamil Nadu, India.
Objective:
To assess the accuracy of tooth movements with aligners produced in the office.
Materials And Methods:
Seventeen patients (8 males, 9 females) were treated orthodontically with aligners produced using a Phrozen Sonic XL 4K 2022 3D printer and Tera Harz TC-85DAC resin. Tooth movements were planned on OnyxCeph® software, and accuracy was checked by digital scanning and 3D analysis.
Results:
The maximum mean accuracy rate was for the transverse dimension (98.5%). There were no significant differences between planned and actual movements (P > 0.05). Most discrepancies were for mandibular canines (1.70°), while the minimum for maxillary canines was (0.80°).
Conclusion:
In-office aligners exhibit high accuracy, especially in transverse dimensions, with successful execution of planned movements.
