A Novel Electro-Typodont for Measuring the Efficacy of 3D-Printed Orthodontic Aligners

• DOI: 10.20944/preprints202505.1359.v1
• Publication Date: 2025-05-22T00:49:13Z
• Authors: Ammar A. Al Shalabi; Shaima Malik; Hoon Kim; Abdulaziz Alhotan; Tarek M. Elshazly; Ahmed Ghoneima
• Keywords: 3d printed

Objectives: To introduce a novel method—an electric typodont model—to evaluate the efficacy of 3D-printed orthodontic aligners in correcting rotations upper right central incisor (Tooth 11). Materials and Methods: An fitted with heat-activated wax blocks was employed to simulate four severities rotation Tooth 11: 22°, 32°, 42°, 52°. Each setup scanned treatment planned Maestro 3D software produce sequential per angulation. In total, 240 were three thicknesses (0.50 mm, 0.75 1.00 mm). After seating each aligner on typodont, 10-minute heat cycle applied, immediately followed by cooling cycle. Afterward, degree derotation measured protractor against fixed baseline. 11 then reset using rigid guiding stents, procedure repeated five times subgroup ensure reliability. Results: The reliably simulated derotation. By fourth aligner, all thickness groups reduced initial approximately 4–5°, though they differed early-stage performance. 0.50 mm produced larger corrections, particularly between Aligners 1 2, whereas demonstrated more uniform, gradual final stage, converged same minimal residual rotation. Conclusions: is reliable pre-clinical model for simulating aligner-driven tooth movement. Moreover, succeeded effectively anterior incisors at different severities, without attachments.