Preparation of Zinc Oxide Mesocrystal Filler and Its Properties as Dental Composite Resin

【Author】

LIU Yu-Ling;WANG Rui-Li;LI Nan;LIU Mei;ZHANG Qing-Hong

【Institution】

College of Materials Science and Engineering, Donghua University;College of Materials Science and Engineering, Donghua University;College of Materials Science and Engineering, Donghua University;Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University;College of Materials Science and Engineering, Donghua University

【Abstract】

The inorganic filler is the main component of the dental restoration composite resin, which is very important for the properties and functions of composite resin. In this paper, zinc oxide (ZnO) mesocrystal microspheres were prepared from Zn(NO 3)·6H 2O solution in the presence of triethanolamine as the soft template by the hydrothermal method. These microspheres were self-assembled by 37.5 nm ZnO crystallite with good order. ZnO mesocrystal microspheres were modified with γ-methacryloxypropyltrimethoxysilane ( γ-MPS), subsequently mixed with modified SiO 2 microspheres as fillers, and then added to the Bis-GMA/TEGDMA system to prepare the composite resin. Through morphology observation and performance test, it is found that the filler is uniformly dispersed in composite resin. The one filled with 20 wt% ZnO mesocrystals has excellent mechanical properties and wear resistance. The flexural strength and modulus reach 133 MPa and 9.8 GPa, respectively with the volume loss at 1.02 mm 3 after 3 000 times of wearing, which is 88.7% and 90.8% lower than those of the composite resins filled with commercial ZnO microspheres and bare SiO 2, respectively. Moreover, the antibacterial rate of ZnO composite resin against Streptococcus mutans in the oral cavity reaches 99.9%.

【Keywords】

dental composite resin;ZnO mesocrystal;mechanical property;wear resistance;antibacterial property

References

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Total: 21 articles

  • [1] WANG Yu-Zheng 1,2,3,4 , XUE Xiang-Xin 1,2,3,4 , YANG He 1,2,3,4 (1. Institute of Metallurgical Resources and Environmental Engineering, Northeastern University, Shenyang 110819, China; 2. Liaoning Key Laboratory of Metallurgical Resources Recycling Science, Shenyang 110819, China; 3. Liaoning Engineering and Technology Research Center of Boron Resources Comprehensive Utilization, Shenyang 110819, China; 4. Liaoning Provincial Universities Key Laboratory of Boron Resources Ecological Utilization Technology and Boron Materials, Shenyang 110819, China), Preparation and Characterization of Zinc and Cerium Co-doped Titania Nano-materials with Antibacterial Activity, Journal of Inorganic Materials,
  • [2] XIN Chen;QI Xin;ZHU Min;ZHAO Shi-Chang;ZHU Yu-Fang;School of Materials Science and Engineering, University of Shanghai for Science and Technology;Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University;, Hydroxyapatite Whisker-reinforced Composite Scaffolds Through 3D Printing for Bone Repair, Journal of Inorganic Materials,
  • [3] LIANG Bei-lei;LU Yi;LI Yun-cong;LIU Rui-rui;The department of prosthetics, Stomatology Hospital of Xi'an Jiaotong University;, Study on the sustained-release property and the antimicrobial performance of Nano-ZnO modified composite resin, Chinese Journal of Prosthodontics,
  • [4] WANG Meimei;QIN Yan;HAN Hongyu;XIAO Ximei;LIU Jie;FU Jing;Department of Stomatology,The Affiliated Hospital of Qingdao University;, A STUDY ON WEAR RESISTANCE OF NEW ANTIBACTERIAL DENTAL LIGHT-CURED COMPOSITE RESIN, Journal of Precision Medicine,

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