Dimensional Accuracy and Final Density Measurement of One-, Three-, and Eight-Unit Fixed Dental Frameworks Based on Co-Cr, Manufactured by Using Conventional, Additive and Subtractive Technologies

Authors

  • Andrea Sinčák Konečná Stomatological clinic, Department of Conservative and Prosthetic dentistry, University Hospital of L.Pasteur, Tr.SNP č.1, 04011 Košice, Slovakia
  • Viktória Rajťúková Department of Biomedical Engineering and Measurement, Faculty of Mechanical Engineering, Technical University of Košice, 040 01 Košice, Slovakia
  • Alena Findrik Balogová Department of Biomedical Engineering and Measurement, Faculty of Mechanical Engineering, Technical University of Košice, 040 01 Košice, Slovakia
  • Ľuboš Chromý Department of Biomedical Engineering and Measurement, Faculty of Mechanical Engineering, Technical University of Košice, 040 01 Košice, Slovakia
  • Gabriela Ižaríková Department of Applied Mathematics and Informatics, Faculty of Mechanical Engineering, Technical University of Košice, 040 01 Košice, Slovakia
  • Radovan Hudák Department of Biomedical Engineering and Measurement, Faculty of Mechanical Engineering, Technical University of Košice, 040 01 Košice, Slovakia

Keywords:

3D printing, Additive technologies, Co-Cr alloys

Abstract

For the aim of this study, 90 fixed metal frameworks based on Co-Cr were made by using conventional lost vax technique, additive 3D printing done by Selective Laser melting (SLM) technique and subtractive manufacturing using CNC milling. Constructions were produced by the Ceramill Motion 2 milling machine (Amann Girrbach) and Mlab Cusing R 3D printer (GE Additive). Samples were made as one-, three- and eight-unit frameworks based on existing clinical cases. Initial stl. model was built up on a scanned plaster model of three clinical cases by ZirconZahn Modellier software. Evaluation of dimensional accuracy was made by comparison of initial stl. model with a scan of manufactured framework and analyzed by measurement software.  Density measurements were made by helium (He) based gas pycnometry.  Gained data was statistically analyzed by using T-test and F-test for technologies comparison and non-parametric form of ANOVA: Kruskal Wallis was applied in density evaluation of all samples.

References

. K. Torabi, E. Farjood, and S. Hamedani. “Rapid Prototyping Technologies and their Applications in Prosthodontics, a Review of Literature.” J. Dent., 6:1–9, 2015.

. K. Quante, K. Ludwig, and M. Kern. “Marginal and internal fit of metal-ceramic crowns fabricated with a new laser melting technology.” Dent. Mater, 24:1311–1315, 2008.

. M. S. Jacobs and A. S. Windeler. “An investigation of dental luting cement solubility as a function of the marginal gap.” J. Prosthet. Dent., 65:436–442, 1997.

. O. Schaefer, H. Kuepper, G. A. Thompson, G. Cachovan, A. F. Hefti and A. Guentsch. “Effect of CNC-milling on the marginal and internal fit of dental ceramics: A pilot study.” Dent. Mater., 29:851–858, 2013.

. J. T. Colpani, M. Borba, and Á. Della Bona. “Evaluation of marginal and internal fit of ceramic crown copings.” Dent. Mater., 29:174–180, 2013.

. J. A. Sorensen. “A standardized method for determination of crown margin fidelity.” J. Prosthet. Dent., 64:18–24, 1990.

. C. Grenade, A. Mainjot and A. Vanheusden. “Fit of single tooth zirconia copings: comparison between various manufacturing processes.” J. Prosthet. Dent., 105:249–255, 2011.

. N. A. Dolgov, T. Dikova, D. Dzhendov, D. Pavlova and M. Simovb. “Mechanical properties of dental Co-Cr alloys fabricated via Casting and SLM.” Mat. Sci. Non-Equilibrium Phase Transform, 2:3–7, 2016.

. “Concept laser, dental machines. Internet: www.concept-laser.de/en/industry/dental/machines.html, Jan. 01, 2021.

. A. Gribach. “Ceramill Motion 2: Milling machines. Internet: www.amanngirrbach.com/en/products/production-cam/ceramill-motion-2, Sep. 09, 2021.

. G. Bosch, A. Ender, A. Mehl. “A 3-dimensional accuracy analysis of chairside CAD/CAM milling processes.” The J. of Prost. Dent., 112(6): 1425-1431, 2014.

. E. J. Bae, I. D. Jeong, W. C. Kim, et al. “A comparative study of additive and subtractive manufacturing for dental restoration.” J. Prost. Dent., 118:187-193, 2017.

. A. Örtorp, et al. “The fit of cobalt–chromium three-unit fixed dental prostheses fabricated with four different techniques: A comparative in vitro study.” Dent. Mat., 27(4): 356-363, 2011.

. H. Nesse, D. M. Ulstein, M. M. Vaage, M. Øilo. “Internal and marginal fit of cobalt-chromium fixed dental prostheses fabricated with 3 different techniques.” J. Prost. Dent., 114(5):686-92, 2015.

. R. Mejia, S. M. Tobon. “Marginal fit of metal ceramic restorations subjected to a standardized post soldering technique.” J. of Prost. Dent., 83:535-9, 2000.

. P. Limkangwalmongkol, G. J. Chiche, M. B. Blatz. “Precision of fit of two margin designs for metal – Ceramic crowns.” J. of Prost., 16:233-7, 2007.

. D. Petteno, G. Schierano, F. Bassi, et al. “Comparison of marginal fit of three different metal - ceramic systems: an in vitro study.” Inter. J. of Prost., 5:405-8, 2000.

. Y. Ucar, T. Akova, M. S. Akyli, et al. “Internal fit evaluation of crowns prepared using a new dental crown fabrication technique: laser-sintered Co-Cr crowns.” J. of Prost. Dent., 102: 253-9, 2009.

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Published

2022-08-28

How to Cite

Andrea Sinčák Konečná, Viktória Rajťúková, Alena Findrik Balogová, Ľuboš Chromý, Gabriela Ižaríková, & Radovan Hudák. (2022). Dimensional Accuracy and Final Density Measurement of One-, Three-, and Eight-Unit Fixed Dental Frameworks Based on Co-Cr, Manufactured by Using Conventional, Additive and Subtractive Technologies. American Scientific Research Journal for Engineering, Technology, and Sciences, 89(1), 169–183. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/7829

Issue

Vol. 89 No. 1 (2022)

Section

Articles

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