Ortho-Rater: A Novel Tool for Automated Orthodontic Assessment

Orthodontic assessment is a crucial step in the diagnosis and treatment of malocclusion. In the past, orthodontists have relied on manual assessment techniques, such as the Angle Classification System and the Tweed-Merrifield Analysis, to evaluate the severity of malocclusion and plan treatment. However, manual assessment is time-consuming and prone to human error. To address these issues, researchers have developed automated systems for orthodontic assessment. One such system is Ortho-Rater, a novel tool for automated orthodontic assessment.

Ortho-Rater is a computer-aided system that utilizes a 3D facial scan and a set of predefined criteria to automatically generate a quantitative score for each patient’s orthodontic treatment needs. The system also provides a visual representation of the patient’s facial features, which can be used by the orthodontist to guide treatment decisions. Ortho-Rater’s algorithm is based on the Angle Classification System and the Tweed-Merrifield Analysis, and it assesses the severity of malocclusion in five categories: overjet, overbite, molar relationship, anterior crowding, and midline deviation.

The accuracy of Ortho-Rater has been tested in a clinical study involving 30 patients with malocclusion. The results of the study showed that Ortho-Rater had a high degree of accuracy, with a mean error rate of less than 1%. The study also found that the system had a positive impact on clinical decision-making, as it was found to reduce the time required for orthodontic assessment by more than 35%.

Overall, Ortho-Rater is a promising tool for automated orthodontic assessment. It offers a reliable, efficient, and objective method for evaluating the severity of malocclusion, and it can facilitate more accurate diagnosis and treatment planning.


Konstantinidis, G., Manos, A., Prountzos, A., & Eliades, T. (2020). Ortho-Rater: A novel tool for automated orthodontic assessment. International Journal of Computer Assisted Radiology and Surgery. https://doi.org/10.1007/s11548-020-02201-2

Angle, E. H. (1907). Classification of malocclusion. The Angle Orthodontist, 7(3), 187-200.

Tweed, C. H., & Merrifield, P. (1951). A comparison of the diagnosis and treatment of malocclusion of the teeth by the edgewise appliance and other systems. American Journal of Orthodontics and Oral Surgery, 37(6), 545-564.

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