Composite powder design strategy enabling vat photopolymerization 3D printing of lithium disilicate glassceramics with high precision,strength,and antibacterial propertiesOA
Lithium disilicate glass-ceramic is a widely used dental restoration material valued for its aesthetic semitranslucency,high strength,and excellent biocompatibility.Vat photopolymerization,a form of three-dimensional(3D)printing,presents a transformative alternative to the conventional powder sintering and machining of this material,offering significant improvements in production efficiency and material utilization.However,3D printing lithium disilicate glassceramics is challenging,primarily due to severe light scattering caused by their high transparency,which compromises printing accuracy.This study proposes a functional composite powder design strategy that incorporates carbon and zinc oxide powders into a lithium disilicate matrix based on light scattering principles.Through optical simulations and experimental validation,the composition was rationally optimized to produce functional dental prostheses with high precision,strength,and antibacterial properties.Carbon confines light scattering via its high extinction coefficient,and zinc oxide secures an adequate curing depth via its high refractive index,synergistically ensuring high precision.This work lays a foundation for advancing the 3D printing and clinical application of functional lithium disilicate glass-ceramics.
Fan Zhang;Yujun Zhang;Junfeng Kang;Shouren Wang;Zhen Xiao;Xiuli Fu;Gaoqi Wang
Shandong Key Laboratory of Surface Engineering and Intelligent Equipment for Key Metal Components,School of Mechanical Engineering,University of Jinan,Jinan 250022,ChinaDepartment of Prosthodontics,School and Hospital of Stomatology,Cheeloo College of Medicine,Shandong University,Jinan 250012,ChinaSchool of Materials Science and Engineering,University of Jinan,Jinan 250002,ChinaShandong Key Laboratory of Surface Engineering and Intelligent Equipment for Key Metal Components,School of Mechanical Engineering,University of Jinan,Jinan 250022,ChinaShandong Key Laboratory of Surface Engineering and Intelligent Equipment for Key Metal Components,School of Mechanical Engineering,University of Jinan,Jinan 250022,ChinaShandong Key Laboratory of Surface Engineering and Intelligent Equipment for Key Metal Components,School of Mechanical Engineering,University of Jinan,Jinan 250022,ChinaShandong Key Laboratory of Surface Engineering and Intelligent Equipment for Key Metal Components,School of Mechanical Engineering,University of Jinan,Jinan 250022,China
医药卫生
lithium disilicate glass-ceramicforming accuracymechanical propertiesantibacterial propertydigital light processing
《Journal of Advanced Ceramics》 2026 (3)
P.141-154,14
supported by the National Natural Science Foundation of China(Nos.52475263 and 52175408)Shandong Higher Education Youth Innovation and Technology Support Program(No.2023KJ110)University of Jinan Disciplinary Cross-Convergence Construction Project 2024(No.XKJC-202406)Taishan Scholar Engineering Special Funding(2022-2027).
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