Predicting orthodontic root movements with the dental monitoring system: A preliminary study

Authors

• Jae Hyun Park, Arizona School of Dentistry and Oral Health
• Megan Do, Arizona School of Dentistry and Oral Health
• Hae Jin Han, Arizona School of Dentistry and Oral Health
• R. Curtis Bay, Arizona School of Health Sciences
• Mohamed Bayome, Graphy Inc.
• Xingzhong John Zhang, Arizona School of Dentistry and Oral Health

Document Type

Article

Publication Title

Seminars in Orthodontics

Abstract

Introduction The purpose of this study was to evaluate the accuracy of the Dental Monitoring™ (DM) technology in predicting root movements based on crown movements and to validate this accuracy using Materialise 3-Matic software. Methods Records of 20 patients, taken at the onset (T0) and after 6 months of orthodontic treatment (T1), were used to generate the DM three-dimensional stereolithography (DMSTL) models, merged from iTero and cone-beam computed tomography scans at T0 and T1, and the SmartSTL 3D Merged Model, merged from DM scan and DMSTL at T1. The surface deviations between SmartSTL(T1) and DMSTL(T1) on maxillary and mandibular arches, and the displacements of five points on the roots of the maxillary and mandibular central incisors, canines, and second premolars, were measured from the superimposed models. SPSS Statistics version 30 was used to perform statistical analyses, with an alpha level of 0.05 set for statistical significance. Results The mean surface deviations between SmartSTL(T1) and DMSTL(T1) were 0.053 ± 0.014 mm and 0.050 ± 0.008 mm on the maxillary and mandibular arches, respectively. The average root movements of Point 1 (root apex) ranged from 0.823 mm to 1.249 mm between the DMSTL (T0) and the SmartSTL(T1), and 0.992 to 1.802 mm using 3-Matic. The overall average difference between the DM and 3-Matic methods was -0.294 ± 1.851 mm, without a statistically significant difference. The displacement values of the root apices on the selected teeth between the SmartSTL(T1) and DMSTL(T1) ranged from 0.194 to 0.454 mm. Conclusion These results suggest that the developed SmartSTL(T1) model may reliably predict root movements greater than 0.50 mm with the current DM technology. With the required improvements, such as high-quality DM scans and AI-assisted refinement, this root-monitoring technology is anticipated to be integrated into routine orthodontic monitoring.

First Page

675

Last Page

683

DOI

10.1053/j.sodo.2025.10.013

Publication Date

8-1-2026

Recommended Citation

Park, Jae Hyun; Do, Megan; Han, Hae Jin; Bay, R. Curtis; Bayome, Mohamed; and Zhang, Xingzhong John, "Predicting orthodontic root movements with the dental monitoring system: A preliminary study" (2026). ASDOH Faculty Publications. 529.
https://scholarworks.atsu.edu/asdoh-faculty/529