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An investigation of the microstructure and mechanical properties of dental zirconia manufactured by digital light processing 3D printing / 华西口腔医学杂志
West China Journal of Stomatology ; (6): 576-581, 2021.
Article in English | WPRIM | ID: wpr-921377
ABSTRACT
OBJECTIVES@#This study was performed to investigate the microstructure and mechanical properties of dental zirconia manufactured by digital light processing (DLP) 3D printing and the clinical application prospects of this material.@*METHODS@#The experiment (DLP) group was zirconia manufactured by DLP 3D printing, and the control (MILL) group was milled zirconia. The density, grain size, and phase composition were measured to study the microstructure. Flexural strength was measured by using three-point bending tests, while Vickers hardness was determined through a Vickers hardness tester. Fracture toughness was tested using the single-edge V-notched beam method.@*RESULTS@#Zirconia density of the DLP group was (6.019 8±0.021 3) g·cm@*CONCLUSIONS@#Zirconia manufactured by DLP 3D printing had microstructure and mechanical properties similar to those of the milled zirconia. Only the flexural strength and the Vickers hardness of the experimental zirconia were slightly lower than those of the milled zirconia. Therefore, DLP-manufactured zirconia has a promising future for clinical use.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Zirconium / Materials Testing / Dental Porcelain / Printing, Three-Dimensional Language: English Journal: West China Journal of Stomatology Year: 2021 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Zirconium / Materials Testing / Dental Porcelain / Printing, Three-Dimensional Language: English Journal: West China Journal of Stomatology Year: 2021 Type: Article