Evaluation of the accuracy of dental casts manufactured with 3D printing technique in the All-on-4 treatment concept

Tas, Hilin; Demirci, Fatih; Tuzlali, Mesut; Bahçe, Erkan; Avcu, Güler Yildirim

doi:10.4047/jap.2022.14.6.379

Cited by 4 publications

(4 citation statements)

References 42 publications

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“…For example, one study indicated that the light intensity of the post-curing device plays a crucial role in determining the final mechanical properties of 3D-printed dental products, suggesting that more efficient post-curing can be achieved by fine-tuning these parameters [ 19 ]. The review of 3D-printing technologies in dentistry also emphasizes the importance of post-curing in achieving high material utilization and producing complex geometries with high accuracy [ 19 , 20 , 21 ]. However, our results showed an increase of ~ 10% of DC after 45 min of the post-curing process for all kinds of ovens.…”

Section: Discussionmentioning

confidence: 99%

“…An extension of the post-curing time can lead to increased strength, rigidity, and overall durability of the resin parts. This is because prolonged exposure to UV light or heat allows for more thorough polymerization of the resin, providing additional energy to the residual monomers and resulting in a denser cross-linked network within the material [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ] This study revealed a statistically significant variance in DC values between 15 min and 45 min curing intervals ( p = 0.00023), supporting the idea that longer post-curing times result in higher degrees of conversion. However, even with a three-fold increase in time, there was only a minor, less than 5%, improvement in DC.…”

Section: Discussionmentioning

confidence: 99%

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Effect of Different Post-Curing Methods on the Degree of Conversion of 3D-Printed Resin for Models in Dentistry

Kirby,

Pesun,

Nowakowski

et al. 2024

Polymers

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The aim was to investigate the effects of different post-curing units on the chemical properties (degree of conversion) of 3D-printed resins for producing models in dentistry. The goal is to determine whether less-expensive post-curing units can be a viable alternative to the manufacturer’s recommended units. Forty-five samples were fabricated with an LCD printer (Phrozen Sonic Mini, Phrozen 3D, Hsinchu City, Taiwan) using MSLA Dental Modeling Resin (Apply Lab Work, Torrance, CA, USA). These samples were divided randomly into four different groups for post-curing using four distinct curing units: Phrozen Cure V2 (Phrozen 3D, Hsinchu City, Taiwan), a commercial acrylic nail UV LED curing unit (SUNUV, Shenzhen, China), a homemade curing unit created from a readily available UV LED light produced (Shenzhen, China), and the Triad® 2000™ tungsten halogen light source (Dentsply Sirona, York, PA, USA). The degree of conversion was measured with FTIR spectroscopy using a Nicolet 6700 FTIR Spectrometer (Thermo Fisher Scientific, Waltham, MA, USA). Phrozen Cure V2 had the highest overall mean degree of conversion (69.6% with a 45 min curing time). The Triad® 2000 VLC Curing Unit had the lowest mean degree of conversion value at the 15 min interval (66.2%) and the lowest mean degree of conversion at the 45 min interval with the homemade curing unit (68.2%). The type of light-curing unit did not yield statistically significant differences in the degree of conversion values. There was a statistically significant difference in the degree of conversion values between the 15 min and 45 min curing intervals. When comparing individual light-curing units, there was a statistically significant difference in the degree of conversion for the post-curing units between the 15 min and 45 min curing time (p = 0.029).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effect of Different Post-Curing Methods on the Degree of Conversion of 3D-Printed Resin for Models in Dentistry

Kirby,

Pesun,

Nowakowski

et al. 2024

Polymers

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“… 21 22 Therefore, the research on model accuracy has always been a topic interest, even though the research object has been changing. Studies on the printing accuracy of full arch, 4 partial arch, 23 and implant restoration models, 24 and short unit preparations 25 26 have been relatively comprehensive, but there is a lack of research on the accuracy of 3D printed full-arch preparation models using different internal structures of models in different printing systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of internal structures on the accuracy of 3D printed full-arch dentition preparation models in different printing systems

Peng

Yang

et al. 2023

J Adv Prosthodont

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PURPOSE The objective of this study was to investigate how internal structures influence the overall and marginal accuracy of full arch preparations fabricated through additive manufacturing in different printing systems. MATERIALS AND METHODS A full-arch preparation digital model was set up with three internal designs, including solid, hollow, and grid. These were printed using three different resin printers with nine models in each group. After scanning, each data was imported into the 3D data processing software together with the master cast, aligned and trimmed, and then put into the 3D data analysis software again to compare the overall and marginal deviation whose results are expressed using root mean square values and color maps. To evaluate the trueness of the resin model, the test data and reference data were compared, and the precision was evaluated by comparing the test data sets. Color maps were observed for qualitative analysis. Data were statistically analyzed by one-way analysis of variance and Bonferroni method was used for post hoc comparison (α = .05). RESULTS The influence of different internal structures on the accuracy of 3D printed resin models varied significantly ( P < .05). Solid and grid models showed better accuracy, while the hollow model exhibited poor accuracy. The color maps show that the resin models have a tendency to shrink inwards. CONCLUSION The internal structure design influences the accuracy of the 3D printing model, and the effect varies in different printing systems. Irrespective of the kind of printing system, the printing accuracy of hollow model was observed to be worse than those of solid and grid models.

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“…Mathey et al, 2021;Morón-Conejo et al, 2022;Olea-Vielba et al, 2020;Papaspyridakos et al, 2020;Revilla-León et al, 2018;Tas et al, 2022; Table 6). There was one narrative review about the topic(Revilla-León et al, 2020).…”

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confidence: 99%

Current applications of 3D printing in dental implantology: A scoping review mapping the evidence

Pradíes,

Morón‐Conejo,

Martínez‐Rus

et al. 2023

Clinical Oral Implants Res

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ObjectivesThis scoping review aimed to identify the available evidence in the use of 3D printing technology in dental implantology. Due to the broad scope of the subject and its application in implantology, three main areas of focus were identified: (1) customized dental implants, (2) manufacturing workflow for surgical implant guides, and (3) related implant‐supported prostheses factors, which include the metallic primary frameworks, secondary ceramic or polymer superstructures, and 3D implant analog models.Materials and MethodsOnline databases (Medline, Cochrane, Embase, and CINAHL) were used to identify the studies published up to February 2023 in English. Two experienced reviewers performed independently the screening and selection among the 1737 studies identified. The articles evaluated the additive manufacturing (AM) technology, materials, printing, and post‐processing parameters regarding dental implantology.ResultsThe 132 full‐text studies that met the inclusion criteria were examined. Thirteen studies of customized dental implants, 22 studies about the workflow for surgical implant guides, and 30 studies of related implant‐supported prostheses factors were included.Conclusions(1) The clinical evidence about AM titanium and zirconia implants is scarce. Early data on survival rates, osseointegration, and mechanical properties are being reported. (2) 3D printing is a proven manufacturing technology to produce surgical implant guides. Adherence to the manufacturer's instructions is crucial and the best accuracy was achieved using MultiJet printer. (3) The quality of 3D printed prosthetic structures and superstructures is improving remarkably, especially on metallic alloys. However, better marginal fit and mechanical properties can be achieved with milling technology for metals and ceramics.

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Evaluation of the accuracy of dental casts manufactured with 3D printing technique in the All-on-4 treatment concept

Cited by 4 publications

References 42 publications

Effect of Different Post-Curing Methods on the Degree of Conversion of 3D-Printed Resin for Models in Dentistry

Effect of Different Post-Curing Methods on the Degree of Conversion of 3D-Printed Resin for Models in Dentistry

Effect of internal structures on the accuracy of 3D printed full-arch dentition preparation models in different printing systems

Current applications of 3D printing in dental implantology: A scoping review mapping the evidence

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