ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2025
Effect of printing orientation on mechanical properties of 3D-printed orthodontic aligners.
Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The trial behind it
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Who cites it
9 citing papers in PubMed.
- Article
- Flexural Stiffness and Force Retention of Six 3D-Printed Thermoplastics for Orthodontic Appliances: An In Vitro Screening Study.Dentistry journal · 2026Article
- Static and Dynamic Mechanical Properties of 3D-Printable Aligner Resins: An In Vitro Study with FTIR Chemical Characterization.Journal of functional biomaterials · 2026Article
- How stable are SLA-printed orthodontic models: a 6-month in vitro evaluation.The Angle orthodontist · 2026Article
- 3D-printed sustainable biocomposites via valorization of biomass: focus on challenges and their future perspectives.Environmental science and pollution research international · 2025Review
- Systematic review and meta analysis of mechanical properties of 3D printed denture bases compared to milled and conventional materials.Scientific reports · 2025Article
- Influence of Printing Orientation on Surface Roughness and Gloss of 3D Printed Resins for Orthodontic Devices.Materials (Basel, Switzerland) · 2025Article
- Preclinical evaluation of 3D-Printed orthodontic aligners using an electro-typodont model.Frontiers in bioengineering and biotechnology · 2025Article
- 4D-Printed Smart Materials in Clear Aligner Fabrication: A Comprehensive Review :.Galen medical journal · 2025Review
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study was to assess differences in the fundamental mechanical properties of resin-made three-dimensional (3D) printed orthodontic aligners according to the printing orientation.
methodsTwenty resin 3D-printed dumbbell-shaped specimens and 20 orthodontic aligners were fabricated and postcured in nitrogen. Half of the specimens and aligners were built in horizontal (H), the other half in vertical (V) directions. The dumbbell-shaped specimens were loaded in a tensile testing machine, while parts of the aligners were embedded in acrylic resin, ground, polished, and then underwent instrumented indentation testing (IIT). Mechanical properties that were assessed included the yield strength (YS), breaking strength (BS), plastic strain (ε), Martens hardness (HM), indentation modulus (E
resultsNo significant differences were found between specimens or aligners printed either in a horizontal or a vertical direction (P > 0.05 in all instances). Overall, the 3D-printed aligners showed acceptable mechanical propertied in terms of YS (mean 19.2 MPa; standard deviation [SD] 1.7 MPa), BS (mean 19.6 MPa; SD 1.2 MPa), ε (mean 77%; SD 11%), HM (median 89.0 N/mm
conclusionPrinting direction seemed to have no effect on the mechanical properties of 3D-printed resin aligners, which are promising for orthodontic use.
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