Investigation of Ceramic Dental Prostheses Based on ZrSiO4 -Glass Composites Fabricated by Indirect Additive Manufacturing

Cunico, Marlon Wesley Machado

doi:10.18063/ijb.v7i1.315

Cited by 7 publications

(7 citation statements)

References 23 publications

(11 reference statements)

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“…23 Different AM technologies have been employed; these include vat photopolymerization (stereolithography [SLA], digital light processing [DLP]), selective laser sintering (SLS) and selective laser melting (SLM), direct energy deposition, fused deposition modeling (FDM), robocasting, and direct inject printing. [24][25][26][27] Photopolymerizable ceramic suspensions have been developed for manufacturing ceramics by using highly concentrated resin that is loaded with ceramic powder. 28 The liquid resin is selectively solidified through controlled photopolymerization to fabricate homogenous green form, and then post processed to eliminate the photosensitive resin, fuse ceramic particles, and obtain a dense ceramic component.…”

Section: Introductionmentioning

confidence: 99%

“…The American Society for Testing and Materials has defined AM as “a process of joining materials to make objects from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing methodologies” 23 . Different AM technologies have been employed; these include vat photopolymerization (stereolithography [SLA], digital light processing [DLP]), selective laser sintering (SLS) and selective laser melting (SLM), direct energy deposition, fused deposition modeling (FDM), robocasting, and direct inject printing 24–27 . Photopolymerizable ceramic suspensions have been developed for manufacturing ceramics by using highly concentrated resin that is loaded with ceramic powder 28 .…”

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confidence: 99%

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Additive Manufacturing of Dental Ceramics: A Systematic Review and Meta‐Analysis

Hamad

Al-Rashdan

Ayyad

et al. 2022

Journal of Prosthodontics

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The purpose of this systematic review and meta-analysis was to evaluate the effect of using additive manufacturing (AM) for dental ceramic fabrication in comparison with subtractive manufacturing (SM), and to evaluate the effect of the type of AM technology on dental ceramic fabrication. Materials and methods: A search was conducted electronically in MEDLINE (via PubMed), EBSCOhost, Scopus, and Cochran Library databases, and also by other methods (table of contents screening, backward and forward citations, and grey literature search) up to February 12, 2022, to identify records evaluating additive manufacturing of ceramics for dental purposes in comparison with subtractive manufacturing. A minimum of 2 review authors conducted tstudy selection, quality assessment, and data extraction. Quality assessment was performed with Joanna Briggs Institute tool, and the quantitative synthesis was performed with the Comprehensive Meta-Analysis program (CMA, Biostat Inc). Hedges's g for effect size was calculated, with 0.2 as small, 0.5 as medium, and 0.8 as large. Heterogeneity was assessed with I 2 and prediction interval (PI) statistics. Publication bias was investigated with funnel plots and grey literature search. Certainty of evidence was assessed with the Grading of Recommendations: Assessment, Development, and Evaluation (GRADE) tool. Results: A total of 28 studies were included for the qualitative and quantitative synthesis; 11 in vitro studies on accuracy, 1 in vivo study on color, and 16 in vitro studies on physical and mechanical properties. Meta-analysis showed overall higher accuracy for SM compared with AM, with medium effect size (0.679, CI: 0.173 to 1.185, p = 0.009) and also for marginal (g = 1.05, CI: 0.344 to 1.760, p = 0.004), occlusal (g = 2.24, CI: 0.718 to 3.766, p = 0.004), and total (g = 4.544, CI: -0.234 to 9.323, p = 0.062) with large effect size; whereas AM had higher accuracy than SM with small effect size for the external (g = -0.238, CI: -1.215 to 0.739), p = 0.633), and internal (g = -0.403, CI: -1.273 to 0.467, p = 0.364) surfaces. For technology, self-glazed zirconia protocol had the smallest effect size (g = -0.049, CI: -0.878 to 0.78, p = 0.907), followed by stereolithography (g = 0.305, CI: -0.289 to 0.9, p = 0.314), and digital light processing (g = 1.819, CI: 0.662 to 2.976, p = 0.002) technologies. Flexural strength was higher for ceramics made by SM in comparison to AM with large effect size (g = -2.868, CI: -4.371 to -1.365, p < 0.001). Only 1 study reported on color, favoring ceramics made through combined AM and SM. Conclusions: Subtractive manufacturing had better overall accuracy, particularly for the marginal and occlusal areas, higher flexural strength, and more favorable hardness, fracture toughness, porosity, fatigue, and volumetric shrinkage; whereas AM had

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Additive Manufacturing of Dental Ceramics: A Systematic Review and Meta‐Analysis

Hamad

Al-Rashdan

Ayyad

et al. 2022

Journal of Prosthodontics

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“…Direct, machine, and labour cost, were calculated, excluding administrative overhead. The part cost (Cpart) is the sum of these costs [20,41], as shown by eq. 1.…”

Section: Numeric Model Developmentmentioning

confidence: 99%

“…Focusing in dental ceramics and bioceramics, the Shell Sintering Technology (SST) has been introduced to produce porcelain, ceramic, glass ceramic, metal and metal-ceramic materials based on hybrid additive-collapsable casting process [20]. This process generates several benefits, such as the improvement of lead time, reduction of total cost, high variability of materials and improvement of automation.…”

Section: Introductionmentioning

confidence: 99%

An investigation of the financial feasibility and technical differences among Shell Sintering Technology (SST), Subtractive, Casting Manufacturing, and Slurry Vat Photopolymerisation for the fabrication of ceramic dental crowns.

Côcco¹,

Cunico²

2023

Preprint

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The objective of this study was to evaluate the economical effects of manufacturing dental prostheses using five alternative techniques: one subtractive manufacturing known as CAD/CAM casting, vat photopolymerisation casting, two slurry vat photopolymerisation techniques, and shell sintering technology (SST). Deterministic bottom-up economic models were employed for this work, and the inputs used included the cost of the materials, equipment, and labour, as well as the time needed to finish each stage of the porcelain crown manufacture. The results from the CAD/CAM and Vat photopolymerisation casting procedures were classified in the average when total overhead costs were taken into account. With payback periods of 2.9 and 3.2 years and ROI values of about 35% and 31%, respectively, the financial returns are comparable and are, from an economic standpoint, quite acceptable. On the other hand, the Slurry 1 and 2 vat photopolymerisation techniques performed poorly to demonstrate a profit or payback, with negative ROIs of -40 and − 52, respectively, indicating that they are unsuitable for this type of application, though they are useful for other applications that traditional techniques cannot solve. In contrast, SST technology has the most affordable equipment, labour, and material expenses. This has a favourable effect on overall production costs, which are much lower when compared to available methods. All overhead median metrics, such as annual profit (US$ 770100.00), 0.5 years of payback, and an ROI of 187%, displayed especially tempting results, demonstrating that this technique has great performance, low operating costs, and outstanding financial returns. In conclusion, the SST technique has the potential to disrupt the dental prosthesis production sector because of its great economics.

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“…A preference for additive manufactured parts (dental prostheses) comes from the fabrication of complex shapes being limited by space (Cunico, 2021; Park et al , 2014). As a result, both the industrial and health sectors are interested in researching and using AM technologies (Cunico and de Carvalho, 2016).…”

Section: Introductionmentioning

confidence: 99%

Investigation and optimization of hot pressed porcelain dental prostheses production by MSLA application

Cordeiro,

Nuernberg,

Côcco

et al. 2023

RPJ

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Purpose Different technologies may currently be used to produce dental prostheses, such as additive manufacturing and traditional milling. This study aims to evaluate and improve the fabrication process for hot-pressed porcelain dental prostheses and compare the use of masked stereolithography apparatus (MSLA) casting to computer-aided design/computer-aided manufacturing (CAD/CAM) casting. The cost-benefit analysis of producing dental prostheses through various technologies, including additive manufacturing and traditional milling, has not been fully explored. The cost of materials and processes used to produce prostheses varies based on complexity of design and materials used, and long-term effects, such as durability and wear and tear, must be taken into account. Design/methodology/approach Using key elements of part costs and estimation cost models, a multivariable approach was used to evaluate the practicality of the recommended strategy and process improvement. Findings The research found that MSLA casting provides a higher return on investment than CAD/CAM casting, and the optimized production process could be more suitable for the size and annual demand for prostheses. Originality/value Overall, this study highlights the need for a more comprehensive understanding of the cost-benefit analysis of different dental prosthesis production methods and emphasises the importance of evaluating long-term effects on the cost-benefit analysis.

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Investigation of Ceramic Dental Prostheses Based on ZrSiO4 -Glass Composites Fabricated by Indirect Additive Manufacturing

Cited by 7 publications

References 23 publications

Additive Manufacturing of Dental Ceramics: A Systematic Review and Meta‐Analysis

Additive Manufacturing of Dental Ceramics: A Systematic Review and Meta‐Analysis

An investigation of the financial feasibility and technical differences among Shell Sintering Technology (SST), Subtractive, Casting Manufacturing, and Slurry Vat Photopolymerisation for the fabrication of ceramic dental crowns.

Investigation and optimization of hot pressed porcelain dental prostheses production by MSLA application

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