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目的：对比分析纤维桩和铸造金属桩核在大面积牙体缺损修复中的作用。方法：随机将60例大面积牙体缺损患者划分为研究组和对照组，研究组采用纤维桩进行修复，对照组采用铸造金属桩核进行修复，对比分析两组临床效果。结果：研究组患者桩核冠脱落、桩核折断、根折、牙龈炎症等情况明显优于对照组（P＜0.05）。结论：相比于金属桩核，纤维桩修复大面积牙体缺损的临床效果更加显著，临床推广应用价值大。“,”Objective: comparative analysis of fiber post and cast metal post-and-core in large tooth defect repair. Methods: 60 cases of large tooth defect randomly choose were divided into study group and control group. The study group was treated with fiber post restoration and the control group was done with cast metal post-and-core, then comparative analysis of clinical effects was carried out. Results: the fracture of post-and-core and root canal, the fal off of the post and gingivitis in the study group were better than those in the control group (P < 0.05). Conclusion: compared to cast metal post-and-core, the clinical effect of fiber post in restoration of large tooth defect is more significant. The clinical application value of fiber post is larger.