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The purpose of the study is to analyze the possibilities of using modern digital technologies of 3D scanning, modeling and printing in personalized planning of orthodontic treatment and forecasting its results.
Materials and methods: 120 patients with various dental anomalies participated in the study. All patients underwent 3D scanning of the dentition using the intraoral scanner iTero (Align Technology, USA), CBCT on the Galileos device (Sirona, Germany) and 3D photogrammetry of the face using the Facial Scan system (3Shape, Denmark). The 3D data obtained were integrated into the OrthoCAD software (Align Technology, USA) for digital modeling and simulation of tooth movement. On the basis of digital models, individualized braces and aligners were designed and manufactured using 3D printing using Dental SG (Formlabs, USA) and SmartTrack (Align Technology, USA) materials. The positioning accuracy of the braces was assessed by comparing their coordinates on a digital model and in the patient's oral cavity using an iTero 3D scanner. The effectiveness of treatment was determined by achieving the final results corresponding to the initial digital plan.
Results: The average accuracy of braces positioning was 97.5±0.8%, which is 24.3% higher compared to traditional methods (p<0.001). The duration of treatment in the group using digital protocols was on average 29.4±5.2% less than in the control group (p<0.01). Full compliance of the final treatment results with the initial digital plan was observed in 94.2% of cases, which is 19.7% higher compared to the traditional approach (p<0.01).
Keywords:3D scanning, 3D printing, digital orthodontics, aligners, individualized braces, intraoral scanner, CBCT, 3D photogrammetry of the face, digital modeling, virtual simulation
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