Wendl, Thomas and Wendl, Brigitte and Proff, Peter (2025) An analysis of initial force and moment delivery of different aligner materials. BIOMEDICAL ENGINEERING-BIOMEDIZINISCHE TECHNIK, 70 (3). pp. 259-267. ISSN 0013-5585, 1862-278X
Full text not available from this repository. (Request a copy)Abstract
Objectives The aim of this study was to clarify the applied initial forces and moments by different aligners of various materials and manufacturing methods.Methods The finite-element-method was used to analyze the forces and moments generated by the aligners on a maloccluded tooth. Plaster models of dental arches with a mesiorotated tooth 11 were fabricated, digitized and virtually analyzed. Four types of aligners with various layer thicknesses were selected: two splints with novel shape memory properties: a printable aligner made of the resin Tera Harz TC-85 DAC (Graphy Inc., South Korea) and a self-manufactured aligner consisting of the components polypropylene carbonate and thermoplastic polyurethane. The other two aligners were conventional, thermoformable aligners: CA (R) Pro Clear Aligner (Scheu Dental GmbH, Germany) and Erkodur-al (Erkodent Erich Kopp GmbH, Germany).Results The force and moment analyses showed that the thermoformable CA (R) Pro Clear Aligner exhibited the highest values. The thermoformed Erkodur-al aligner showed the lowest force loads for all layer thicknesses. The Graphy printed splint showed similar results compared to Erkodur-al at layer thicknesses of 0.40 mm and 0.50 mm.Conclusions To avoid periodontal overloading, aligners with lower force and moment delivery should be chosen for this type of tooth movement.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CENTRAL INCISOR; TOOTH MOVEMENT; DEROTATION; shape-memory; force; moment; single-multilayer; aligner; finite-element-method |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Kieferorthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 Jun 2026 06:11 |
| Last Modified: | 10 Jun 2026 06:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/66015 |
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