Jun-Jie Su, Xin-Yang Li, Zi-Mo Liu, Jia-Min Wu, Cui Huang, Chen-Min Yao, Xiao-Yan Zhang, Xiu-Mei Wang, Yu-Sheng Shi
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Mechanical and biological properties of zirconia crowns prepared by digital light processing
Zirconia (ZrO2) ceramics have been extensively used for dental restorations, but the biocompatibility and mechanical properties of three-dimensional (3D)-printed zirconia materials have not been thoroughly validated yet. In this study, we employed digital light processing (DLP) technology to fabricate zirconia ceramic crowns. The variation in sintering temperature resulted in alterations in phase composition and microstructure. The ceramics exhibited high average relative density, compressive strength, and Vickers hardness values at 1500°C (97.33%, 1812.61 MPa, and 12.55 GPa, respectively). Meanwhile, the zirconia ceramics sintered at 1500°C showed a maximum flexural strength of 411.33 MPa. In addition, the DLP-printed zirconia materials demonstrated satisfactory biocompatibility, with a cell viability of 93.35% after 7 days. No significant inflammatory response or cell deformation was detected (p = .51). The ceramics had no adverse effect on cell adhesion or growth at the initial stages. The results indicate that DLP technology-fabricated zirconia crowns have favorable mechanical properties and biocompatibility.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
Characterization of compositions, structures, defects, and properties along with new methods [...]
Mechanisms, Theory, Modeling, and Simulation[...]
JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
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