STUDY OF THE GEOMETRIC ACCURACY IN THE MANUFACTURING OF ORTHODONTIC APPLIANCES

Language: BGPages: 76–82

Veselina Dukova

Department of Materials Science and Technolgy “Angel Kanchev” Univesity of Ruse

E-mail: vdukova@uni-ruse.bg

Assoc. Prof. Roussi Minev

Department of Materials Science and Technolgy “Angel Kanchev” Univesity of Ruse

ORCID: 0000-0002-5945-044X

E-mail: rus@uni-ruse.bg

Assist. Prof. Emil Yankov

Department of Materials Science and Technolgy “Angel Kanchev” Univesity of Ruse

ORCID: 0000-0002-4886-7055

E-mail: eyankov@uni-ruse.bg

Abstract: The report presents the results of a study of the geometric accuracy of orthodontic aligners manufactured using digital technology (scanning and 3D printing). The study is performed using the coordinate grid method. A specific test peace was designed with the help of which deviations from nominal dimensions were assessed. The influence of the inclination angle, as a basic technological parameter on accuracy, was established. The results show good comparability with the required accuracy for the devices manufactured using conventional methods (e.g. thermoforming).

Keywords: orthodontic appliances, aligners, 3D printing

REFERENCES

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