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VACUUM ›› 2025, Vol. 62 ›› Issue (3): 58-64.doi: 10.13385/j.cnki.vacuum.2025.03.11

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A Novel Plasma Treatment System for Simulating Hydrophilic Modification of Zirconia Implant Surfaces

CAI Jianing1, YU Deping1, GONG Xiaofei2, XUE Jiaqing1, ZHANG Jiacheng1, ZHENG Zheng2, CHEN Wenchuan2,3   

  1. 1. School of Mechanical Engineering, Sichuan University, Chengdu 610065, China;
    2. State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China;
    3. Jinjiang Out-patient Section, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2024-12-15 Online:2025-05-25 Published:2025-05-23

Abstract: Zirconia implants are increasingly being used in dental implant surgery owing to their excellent biological and aesthetic properties. To further improve the osseointegration and success rate of zirconia implants, a plasma treatment system for simulating hydrophilic modification of complex shaped zirconia implant surfaces was proposed. The system utilizes nano silver wires to prepare an external transparent electrode as the coaxial dielectric barrier for discharge. The zirconia implant is placed above the axis electrode in the low-voltage chamber, which can significantly improve the surface hydrophilicity of the implant after treatment within one minute. The reliability and effectiveness of the system were verified through experiments, and the optimal processing parameters were determined. When the implantation treatment time is about 60 s, the absolute air pressure is below 3 kPa, and the power output voltage is 7 kV, the zirconia implant shows the best hydrophilicity.

Key words: plasma, hydrophilic modification, implant, zirconia

CLC Number:  TH787

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