Accuracy of orthodontic models prototyped for clear aligners therapy: A 3D imaging analysis comparing different market segments 3D printing protocols

Venezia, Pietro; Ronsivalle, Vincenzo; Rustico, Lorenzo; Barbato, Ersilia; Leonardi, Rosalia; Giudice, Antonino Lo

doi:10.1016/j.jdent.2022.104212

Cited by 47 publications

(45 citation statements)

References 22 publications

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“…This was proved by previous studies that suggested that the maximum tooth movement per aligner ranged from 0.25 to 0.30 mm. Consequently, 3D printers must generate dental models with accuracy errors below this range to fabricate orthodontic aligners [ 34 , 38 , 39 , 40 ]. Taking this into account, the printed models from either DLP or LCD 3D printers will definitely result in the fabrication of an accurate appliance.…”

Section: Discussionmentioning

confidence: 99%

Comparison in Terms of Accuracy between DLP and LCD Printing Technology for Dental Model Printing

et al. 2022

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Background: The aim of this study is to evaluate the accuracy of a Liquid Crystal Display (LCD) 3D printer compared to a Direct Light Processing (DLP) 3D printer for dental model printing. Methods: Two different printers in terms of 3D printing technology were used in this study. One was a DLP 3D printer and one an LCD 3D printer. The accuracy of the printers was evaluated in terms of trueness and precision. Ten STL reference files were used for this study. For trueness, each STL file was printed once with each 3D printer. For precision, one randomly chosen STL file was printed 10 times with each 3D printer. Afterward, the models were scanned with a model scanner, and reverse engineering software was used for the STL comparisons. Results: In terms of trueness, the comparison between the LCD 3D printer and DLP 3D printer was statistically significant, with a p-value = 0.004. For precision, the comparison between the LCD 3D printer and the DLP 3D printer was statistically significant, with a p-value = 0.011. Conclusions: The DLP 3D printer is more accurate in terms of dental model printing than the LCD 3D printer. However, both DLP and LCD printers can accurately be used to print dental models for the fabrication of orthodontic appliances.

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Section: Discussionmentioning

confidence: 99%

Comparison in Terms of Accuracy between DLP and LCD Printing Technology for Dental Model Printing

et al. 2022

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“…The idea of using sensor systems to control the 3D-force-moment of orthodontic brackets was quite exciting, but it has not yet been put to the test of telemetric energy and data transfer [ 37 ]. A study of similar methodology, but albeit a different objective, was carried out by Venezia et al [ 38 ], where the clinicians aimed to evaluate the accuracy of orthodontic models for the production of clear aligners generated with four 3D printers featuring different technologies and belonging to different market segments. They observed that the accuracy of orthodontic models generated for clear aligners can be influenced by different technologies/market segments of the 3D printers used.…”

Section: Discussionmentioning

confidence: 99%

Future of Orthodontics—A Systematic Review and Meta-Analysis on the Emerging Trends in This Field

Alam

Abutayyem

Kanwal³

et al. 2023

JCM

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Technology is rapidly evolving in the modern world, and the accompanying developments due to its influence are shaping each and every aspect of our life, with the field of orthodontics being no exception. This systematic review and meta-analysis aimed to examine such trends in orthodontics and hypothesize which ones would emerge and continue in the near future. After a thorough search of online journals using keywords such as “3D printing,” “Aligners,” “Artificial intelligence,” “Future trends,” “Orthodontics,” and “Teleorthodontics” across databases of PubMed-MEDLINE, Web of Science, Cochrane, and Scopus, a total of 634 papers were initially recovered. Technological advancements in 3D printing, Computer-aided design and Computer-aided manufacturing (CAD/CAM), biopolymers and Teleorthodontics were the most important categories of development seen across the 17 studies that we selected for our review. All the investigations selected for this systematic review depicted aspects of orthodontics that were influenced by rapid technological changes and could potentially become mainstream in the coming times. However, caution was sought to be observed in the usage/adoption of some of these trends, with social media usage amongst both patients as well as orthodontists being a prime example of this.

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“…The examination of the DC/TMD-Axis II helps in the evaluation of the extent of persistent pain, the presence of depression and somatization among individuals with TMD. 33,34 The utilisation of psychosocial assessments, particularly the Axis II of DC-TMD, is a crucial part of the modern biopsychosocial methodology used for the evaluation of pain. 33 However, this instrument has not been used in previous studies with a similar population as ours.…”

Section: Discussionmentioning

confidence: 99%

“…Nonetheless, the existing literature regarding the impact of intermaxillary elastic employment on the TMJ in adult patients is limited, and no research has been conducted on the effects of clear aligner treatment on the TMJ. The examination of the DC/TMD—Axis II helps in the evaluation of the extent of persistent pain, the presence of depression and somatization among individuals with TMD 33,34 . The utilisation of psychosocial assessments, particularly the Axis II of DC‐TMD, is a crucial part of the modern biopsychosocial methodology used for the evaluation of pain 33 .…”

Section: Discussionmentioning

confidence: 99%

Prevalence of temporomandibular disorders in clear aligner patients using orthodontic intermaxillary elastics assessed with diagnostic criteria for temporomandibular disorders (DC/TMD) axis II evaluation: A cross‐sectional study

Uzunçıbuk,

Marrapodi,

Meto

et al. 2023

J of Oral Rehabilitation

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BackgroundThe objective of this investigation is to assess the relationship between the utilisation of orthodontic intermaxillary elastics and temporomandibular disorder (TMD) symptoms in clear aligner patients and to examine the correlation between the elastic usage time with the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD)—Axis II Evaluation Forms.MethodsThis study was carried out on a total of 40 clear aligner patients using intermaxillary elastics in the experimental group and 30 clear aligner patients who did not use any intermaxillary elastics in the control group. The data were evaluated using the Mann–Whitney U, chi‐square, Fisher's exact chi‐square, and Fisher Freeman Halton exact chi‐square tests.ResultsThe characteristic pain intensity, mastication, mobility, communication, global and PHQ‐9 scores of the experimental group were significantly higher than those of the control group (p < .05). The characteristic pain intensity score, interference score and chronic pain grade score of patients using Class III elastics were statistically significantly higher than those of patients using Class II elastics (p < .05). Patients who used elastics for less than 6 months had statistically significantly higher PHQ‐9 scores than those who used elastics for more than 6 months (p < .05).ConclusionsOrthodontic treatment may affect occlusion, bite force and jaw movement, which may cause or worsen TMD symptoms, and the DC/TMD questionnaires can determine if orthodontic patients acquire TMD by assessing their psychosocial state and pain‐related problems.

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Accuracy of orthodontic models prototyped for clear aligners therapy: A 3D imaging analysis comparing different market segments 3D printing protocols

Cited by 47 publications

References 22 publications

Comparison in Terms of Accuracy between DLP and LCD Printing Technology for Dental Model Printing

Comparison in Terms of Accuracy between DLP and LCD Printing Technology for Dental Model Printing

Future of Orthodontics—A Systematic Review and Meta-Analysis on the Emerging Trends in This Field

Prevalence of temporomandibular disorders in clear aligner patients using orthodontic intermaxillary elastics assessed with diagnostic criteria for temporomandibular disorders (DC/TMD) axis II evaluation: A cross‐sectional study

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