Abstract:

Titanium and titanium alloy are the predominant materials for dental implants. However, in long-term applications, they are associated with issues such as the release of titanium particles, potential induction of immune responses, and aesthetic drawbacks. Zirconia implants, by contrast, present a promising alternative due to their tooth-like color, excellent mechanical properties, and high biocompatibility, and have gradually been applied in clinical practice. Currently, most zirconia implants adopt a one-piece design. With the advancements in processing and material science, newly developed two-piece zirconia implants offer greater restorative flexibility and a broader range of indications compared to one-piece zirconia implants. This paper reviews relevant domestic and international literature and summarizes the current research on the mechanical properties, biological properties, and clinical outcomes of two-piece zirconia implants, aiming to provide a reference for clinicians.

Key words: zirconia, implant, two-piece implant

摘要：

钛及钛合金是目前牙科种植的主流材料，但在长期应用中发现其存在钛粒子释放、可能引发机体免疫反应及美学效果欠佳等问题。相比之下，氧化锆种植体凭借出色的美学性能、优良的机械性能和生物相容性，有望替代纯钛和钛合金种植体，并逐渐应用于临床。目前氧化锆种植体多采用一段式设计，但随着加工技术和材料研发的进步，新研发的两段式氧化锆种植体展现出更高的修复灵活性和更广泛的适应证。本文综合国内外相关文献，就两段式氧化锆种植体的机械性能、生物性能及临床效果方面作一综述，以期为临床医生提供参考。

关键词: 氧化锆, 种植体, 两段式种植体