ArticleScientific reports2022
Thermo-mechanical properties of 3D printed photocurable shape memory resin for clear aligners.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07273435 (Comparison of Predicted and Achieved Crown Movements in Adult Spacing Cases Treated With 3D Direct-printed Aligners), which is not on this map. Cited by 79 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Comparison of Predicted and Achieved Crown Movements in Adult Spacing Cases Treated With 3D Direct-printed Aligners: A Prospective Clinical Trial
Who cites it
79 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Ageing effects on chemical, physical, mechanical, and morphological properties of clear aligners - a systematic review.Progress in orthodontics · 2026Pooled it
- Accuracy of three-dimensionally printed retainers and aligners : A systematic review.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026Pooled it
- Torque expression in directly printed and thermoformed clear aligners: a controlled in vitro biomechanical comparison of power ridge effects.Progress in orthodontics · 2026Article
- Impact of Different Cleaning Protocols on the Optical and Morphological Properties of 3D-Printed Aligners After In Vitro Aging.European journal of dentistry · 2026Article
- Flexural Stiffness and Force Retention of Six 3D-Printed Thermoplastics for Orthodontic Appliances: An In Vitro Screening Study.Dentistry journal · 2026Article
- Comparative evaluation of physicochemical, mechanical, and biological properties of biodegradable poly(lactic acid) (PLA) and commercial aligner materials.Dental materials : official publication of the Academy of Dental Materials · 2026Article
- Biocompatibility of a novel directly printed orthodontic aligner at variable material thicknesses.Scientific reports · 2026Article
- Direct-printed aligners in orthodontics: Integrating digital design, materials science, and clinical biomechanics.Korean journal of orthodontics · 2026Review
- Static and Dynamic Mechanical Properties of 3D-Printable Aligner Resins: An In Vitro Study with FTIR Chemical Characterization.Journal of functional biomaterials · 2026Article
- Review
- Force systems of direct printed and thermoformed aligners with different trimlines during rotational movements: an in vitro analysis.Progress in orthodontics · 2026Article
- Biomechanical force profiles and force decrease of direct printed versus thermoformed aligners with different trimlines: an in vitro analysis.Progress in orthodontics · 2026Article
- Micro-CT evaluation of aligner fit and thickness in 3D-printed and thermoformed aligners: Differences in relation to inner-surface offset design and tooth regions.Korean journal of orthodontics · 2026Article
- Article
- Dimensional behaviors of direct-printed versus thermoformed clear retainers in relation to changes of inter-piece occlusal contact distribution measured by T-scan after intraoral aging: a prospective clinical study.Progress in orthodontics · 2026Article
- How stable are SLA-printed orthodontic models: a 6-month in vitro evaluation.The Angle orthodontist · 2026Article
- Next-Generation Orthodontics: Functional Resins, Biomechanics, Biocompatibility, and Current Clinical Reality of Direct 3D-Printed Aligners.Journal of functional biomaterials · 2026Review
- Fit analysis of 3D-printed versus thermoformed clear aligners for labial tooth movement using micro-CT: an in vitro study.Scientific reports · 2026Article
- Mechanical properties of thermoformed and direct-printed aligner materials after immersion in 37 °C water: a 14-day in vitro study.Scientific reports · 2026Article
- Review
19 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To overcome the limitations of the conventional vacuum thermoforming manufacturing method, direct 3D printing of clear aligners has been developed. The present study investigated the thermo-mechanical and viscoelastic properties of a photocurable resin TC-85, which is a new material for the direct 3D printed clear aligners, comparing to a conventional thermoplastic material polyethylene terephthalate glycol. Dynamic mechanical analysis was performed to analyse the mechanical behaviours of the two materials at 37 °C and 80 °C, respectively. Furthermore, the shape memory property of the two materials was evaluated using a U-shape bending test, and the shape recovery ratio for 60 min at 37 °C was calculated. The results indicate that TC-85 can constantly apply a light force to the teeth when used for the 3D printed clear aligners, owing to its flexibility and viscoelastic properties. In addition, it is expected that the force decay induced by repeated insertion of the clear aligners will be reduced and a constant orthodontic force will be maintained. Furthermore, its geometric stability at high temperatures and the shape memory properties provide advantages for the clinical application.
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