Effect of Printing Direction on the Accuracy of 3D-Printed Dentures Using Stereolithography Technology.
Tamaki Hada,Manabu Kanazawa,Maiko Iwaki,Toshio Arakida,Yumika Soeda,Awutsadaporn Katheng,Ryosuke Otake,Shunsuke Minakuchi +7 more
TLDR
The highest trueness and precision and the most favorable surface adaptation occurred when the printing direction was 45°; therefore, this may be the most effective direction for manufacturing SLA 3D-printed dentures.Abstract:
This study evaluated the effects of the differences in the printing directions of stereolithography (SLA) three-dimensional (3D)-printed dentures on accuracy (trueness and precision). The maxillary denture was designed using computer-aided design (CAD) software with an STL file (master data) as the output. Three different printing directions (0°, 45°, and 90°) were used. Photopolymer resin was 3D-printed (n = 6/group). After scanning all dentures, the scanning data were saved/output as STL files (experimental data). For trueness, the experimental data were superimposed on the master data sets. For precision, the experimental data were selected from six dentures with three different printing directions and superimposed. The root mean square error (RMSE) and color map data were obtained using a deviation analysis. The averages of the RMSE values of trueness and precision at 0°, 45°, and 90° were statistically compared. The RMSE of trueness and precision were lowest at 45°, followed by 90°; the highest occurred at 0°. The RMSE of trueness and precision were significantly different among all printing directions (p < 0.05). The highest trueness and precision and the most favorable surface adaptation occurred when the printing direction was 45°; therefore, this may be the most effective direction for manufacturing SLA 3D-printed dentures.read more
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3D and 4D printing in dentistry and maxillofacial surgery: Printing techniques, materials, and applications.
Danial Khorsandi,Amir Fahimipour,Payam Abasian,Sepehr Sadeghpour Saber,Mahla Seyedi,Sonya Ghanavati,Amir Ahmad,Andrea Amoretti De Stephanis,Fatemeh Taghavinezhaddilami,Anna Leonova,Reza Mohammadinejad,Majid Shabani,Barbara Mazzolai,Virgilio Mattoli,Franklin R. Tay,Pooyan Makvandi +15 more
TL;DR: A review of 3D and 4D printing technologies available for use in dentistry can be found in this paper, together with a critique on the materials available for 3D/4D printing.
Journal ArticleDOI
Stereolithography vs. Direct Light Processing for Rapid Manufacturing of Complete Denture Bases: An In Vitro Accuracy Analysis.
Alexey Unkovskiy,Alexey Unkovskiy,Franziska Schmidt,Florian Beuer,Ping Li,Sebastian Spintzyk,Pablo Kraemer Fernandez +6 more
TL;DR: In this paper, 15 denture bases were printed with stereolithography and direct light processing (DLP) methods using three build angles: 0°, 45° and 90°, and the differences between 3D datasets were measured using the root mean square (RMS) value for trueness and precision.
Journal ArticleDOI
CAD-CAM complete denture resins: an evaluation of biocompatibility, mechanical properties, and surface characteristics.
Murali Srinivasan,Nicole Kalberer,Porawit Kamnoedboon,Mustapha Mekki,Stéphane Durual,Mutlu Özcan,Frauke Müller +6 more
TL;DR: In this article, the authors evaluated the biocompatibility, mechanical properties, and surface roughness of CAD-CAM milled and rapidly-prototyped/3D-printed resins used for manufacturing complete dentures.
Journal ArticleDOI
CAD-CAM Removable Complete Dentures: A systematic review and meta-analysis of trueness of fit, biocompatibility, mechanical properties, surface characteristics, color stability, time-cost analysis, clinical and patient-reported outcomes
Murali Srinivasan,Porawit Kamnoedboon,Gerald McKenna,Lea Angst,Martin Schimmel,Mutlu Özcan,Frauke Müller +6 more
TL;DR: In this paper, the authors compared CAD-CAM (milled/3D-printed) CDs with conventional CDs and concluded that 3D-printed CDs offer a number of improved mechanical/surface properties and are not inferior when compared to conventional CDs.
Journal ArticleDOI
3D Printing of Oil Paintings Based on Material Jetting and Its Reduction of Staircase Effect.
TL;DR: The final results show that photogrammetric models of oil paintings can be printed vividly by UV-curable color polymers, and that the proposed reverse-sequence printing method can significantly improve the staircase effect based on visual assessment and color difference.
References
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