Analysis of the thickness of 3-dimensional-printed orthodontic aligners

Edelmann, Alexander R.; English, Jeryl D.; Chen, Stephen J.; Kasper, F. Kurtis

doi:10.1016/j.ajodo.2020.07.029

Cited by 43 publications

(51 citation statements)

References 11 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A previous study described that the over-penetrance of light in 3D printing with transparent materials can induce overbuilding 24 . In addition, although the liquid resin on the surface of the specimens was mechanically removed after 3D printing, residual resin that remained was polymerized during the post-curing process 18 , which could result in a thicker specimen.…”

Section: Discussionmentioning

confidence: 99%

“…However, only few studies evaluate the physical and mechanical properties of the materials used for 3D printing. There is no known material that can be 3D printed while fulfilling biocompatibility, translucency, and appropriate mechanical properties 10 , 18 , 19 . Recently, a 3D printable biocompatible material that was approved by the Korea Food and Drug Administration (KFDA) and European Commission (EC) has been developed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermo-mechanical properties of 3D printed photocurable shape memory resin for clear aligners

Lee

Kim

et al. 2022

Sci Rep

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermo-mechanical properties of 3D printed photocurable shape memory resin for clear aligners

Lee

Kim

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…3D printing represents a complex method in controlling the thickness of dental aligners and subsequently the exerted force. Edelmann et al reported an increase of overall thickness than the corresponding design file, especially with LT clear resins [ 32 ]. The results obtained in the study showed that the 3D printing workflow did not precisely realize the designed thickness with clear material and it may produce deleterious effects of clinical utility of aligners.…”

Section: Main Textmentioning

confidence: 99%

Direct 3D Printing of Clear Orthodontic Aligners: Current State and Future Possibilities

et al. 2021

View full text Add to dashboard Cite

The recent introduction of three-dimensional (3D) printing is revolutionizing dentistry and is even being applied to orthodontic treatment of malocclusion. Clear, personalized, removable aligners are a suitable alternative to conventional orthodontic appliances, offering a more comfortable and efficient solution for patients. Including improved oral hygiene and aesthetics during treatment. Contemporarily, clear aligners are produced by a thermoforming process using various types of thermoplastic materials. The thermoforming procedure alters the properties of the material, and the intraoral environment further modifies the properties of a clear aligner, affecting overall performance of the material. Direct 3D printing offers the creation of highly precise clear aligners with soft edges, digitally designed and identically reproduced for an entire set of treatment aligners; offering a better fit, higher efficacy, and reproducibility. Despite the known benefits of 3D printing and the popularity of its dental applications, very limited technical and clinical data are available in the literature about directly printed clear aligners. The present article discusses the advantages of 3D printed aligners in comparison to thermoformed ones, describes the current state of the art, including a discussion of the possible road blocks that exist such as a current lack of approved and marketed materials and limited existence of aligner specific software. The present review suggests the suitability of 3D direct printed aligners is superior to that of thermoformed manufactured aligners because of the prior’s increased accuracy, load resistance, and lower deformation. It is an overall more stable way to produce an aligner where submillimeter movements can make a difference in treatment outcome. Direct 3D printing represents a complex method to control the thickness of the aligner and therefore has a better ability to control the force vectors that are used to produce tooth movement. There is currently no other approved material on the market that can do this. The conclusion of this article is that we encourage further in vitro and in vivo studies to test these new technologies and materials.

show abstract

“…In mid-2018 (EnvisionTEC Inc., Dearborn, MI, USA) reported the business arrival of E-Ortholign, an imaginative element for the immediate additive manufactured detachable clips [1]. Notwithstanding, this unmistakable tar is expressed as a microporous, compactly steady, adaptable, and solid material for the immediate additive manufacturing of what is referred to in endodontics as a "first aligner"-a follower that is utilized after an endodontist eliminates a customer's sections will gives grip to teeth, set up initially the care is finished with a progression of expectedly made thermoformable aligners [1,14]. These days, there is no promoted and endorsed photopolymerizable sap appropriate for the immediate printing of tooth plain clips yet an expanding interest in the field of endodontics is occurring, particularly for the improvement of ensured biocompatible saps [15].…”

Section: Biomedical Materials For Orthodonticsmentioning

confidence: 99%

A critique on Materials for Orthodontic Aligners through sustainable Manufacturing

Kilaru¹

2021

E3S Web Conf.

View full text Add to dashboard Cite

Materials will play an important role in any manufacturing sector. Additive manufacturing is the one of the most Emerging Manufacturing technology which is adding a sustainable dimension to Human life by using bio medical dental aligners in orthodontics. The new presentation of Sustainable manufacturing is upsetting endodontist, furthermore, it is in any event, it is applied to dental treatment of poor alignment of teeth and jaws. Exact, customized, Detachable aligners are an appropriate option in contrast to ordinary orthodontic machines, offering a more agreeable furthermore, and productive answer for patients Simultaneously, Detachable Clips are created by a thermoset’s interaction utilizing different sorts of thermoset elements. The Elastomer system modifies the Characteristics of the element, and the intra oral climate moreover changes the characteristic of an unmistakable clip, influencing execution of the element. The current audit recommends the appropriateness of Additive manufactured aligners is better than that of thermoset made aligners due to earlier expanded precision, load obstruction, and lower twisting. It is a general steadier approach to produce an aligner where sub millimetre developments can have an effect in treatment result. Direct 3D printing addresses an intricate strategy to command the density of the aligner and in this manner has superior capacity to command the power angle that are utilized to create teeth development. There is presently no other endorsed material available that can make this.

show abstract

Analysis of the thickness of 3-dimensional-printed orthodontic aligners

Cited by 43 publications

References 11 publications

Thermo-mechanical properties of 3D printed photocurable shape memory resin for clear aligners

Thermo-mechanical properties of 3D printed photocurable shape memory resin for clear aligners

Direct 3D Printing of Clear Orthodontic Aligners: Current State and Future Possibilities

A critique on Materials for Orthodontic Aligners through sustainable Manufacturing

Contact Info

Product

Resources

About