关键词: 可降解金属, 引导骨再生, 骨修复, 生物材料

Abstract: Guided bone regeneration（GBR）is a critical technique for addressing bone repair challenges such as alveolar bone defects. Biodegradable metallic materials have emerged as a research focus in the GBR field due to their unique mechanical properties and degradability. This article systematically elaborates on the structure and properties of biodegradable metallic materials，including the physicochemical characteristics of magnesium-based，zinc-based，and iron-based alloys. It provides an in-depth analysis of their mechanisms in GBR，covering aspects such as space maintenance and their influence on signaling pathways. The application forms of these materials in GBR，including barrier membranes and bone implants，are introduced，along with current research status and clinical progress. Furthermore，the challenges currently faced are analyzed，and future development directions are proposed，with the aim of providing references for further research and application of biodegradable metallic materials in GBR.

Key words: degradable metals, guided bone regeneration, bone repair, biomaterials