牙 材 新 知 DIGITAL & DENTISTRY 牙科用Co-Cr合金的崭新时代 作者:黄俊嘉 关于作者 黄俊嘉 中台科技大学牙体技术暨材料研究所毕业 牙体技术师国考 通过 参考文献 [1] Katti, Kalpana S. Biomaterials in total joint replacement. Colloids and Surfaces B: Biointerfaces 2004; 39: 133-142. [2] Sinnett-Jones, PE, Wharton, JA, and Wood, RJK. Micro-abrasion–corrosion of a CoCrMo alloy in simulated artificial hip joint environments. Wear 2005; 259: 898-909. [3] Sun, D, et al. Microabrasion–corrosion of cast CoCrMo alloy in simulated body fluids. Tribology International 2009; 42: 99-110. [4] Kurosu, Shingo, Nomura, Naoyuki, and Chiba, Akihiko. Effect of sigma phase in Co- 29Cr-6Mo alloy on corrosion behavior in saline solution. Materials transactions 2006; 47: 1961-1964. [5] Mori, Manami, Yamanaka, Kenta, and Chiba, Akihiko. Cold-rolling behavior of biomedical Ni-free Co–Cr–Mo alloys: Role of strain-induced ε martensite and its intersecting phenomena. journal of the mechanical behavior of biomedical materials 2016; 55: 201-214. [6] Béreš, M, et al. Mechanical and phase transformation behaviour of biomedical Co-Cr- Mo alloy fabricated by direct metal laser sintering. Materials Science and Engineering: A 2018; 714: 36-42. [7] Al Jabbari, Youssef S. Physico-mechanical properties and prosthodontic applications of Co-Cr dental alloys: a review of the literature. The journal of advanced prosthodontics 2014; 6: 138-145. [8] Zhu, ZG, et al. Compositional dependence of phase formation and mechanical properties in three CoCrFeNi-(Mn/Al/Cu) high entropy alloys. Intermetallics 2016; 79: 1-11. [9] Williams, RJ, et al. Use of CAD/CAM technology to fabricate a removable partial denture framework. Journal of Prosthetic Dentistry 2006; 96: 96-99. [10] Kim, Hae Ri, et al. Microstructures and mechanical properties of Co-Cr dental alloys fabricated by three CAD/CAM-based processing techniques. Materials 2016; 9: 596. [11] Wang, Hongmei, et al. Evaluation of metal-ceramic bond characteristics of three dental Co-Cr alloys prepared with different fabrication techniques. The Journal of prosthetic dentistry 2016; 116: 916-923. 42 digital & dentistry 4/2018 Co-Cr合金作为牙科临床应 用最普及的补缀合金之一,是因具 有优异的生物相容性,良好机械强 度、耐腐蚀性与耐磨耗性等特质 [1-3],更重要的是在价格上的较 低成本以及制成技术上容易达成! 在 传 统 C o - C r 合 金 之 补 缀 物 制 成 技 术 是 采 用 精 密 铸 造( 脱 蜡 法 )所 获 得 ,而 此 法 正 是 牙 科 修 复 最 倚 赖 之 制 程。 时至今日,已有许多研究报告 指出铸造并非最佳的义齿修复加工 方式,除却操作者个人技术外,比如: 金属收缩、熔炼过程不均和晶粒尺寸 大等缺陷存在。而且当铸造Co-Cr合