应用单克隆抗体免疫组织化学方法，对正常牙髓及不同病变牙髓中巨噬细胞进行了定性、定量分析，发现正常牙髓中存在少量巨噬细胞，分布于牙髓基质中；炎症性牙髓中巨噬细胞明显增加，该细胞在可逆性牙髓炎、慢性牙髓炎、慢性牙髓炎急性发作时数量无明显差异。结果表明：巨噬细胞在牙髓病变中发挥免疫调节和吞噬消化双重作用。 The use of monoclonal antibody immunohistochemistry, normal pulp and different diseased pulp macrophages were qualitative and quantitative analysis found that there are a small number of normal dental pulp macrophages, distributed in the pulp matrix; inflammatory teeth Macrophages in the medulla significantly increased, the number of cells in the reversible pulpitis, chronic pulpitis, acute episodes of chronic pulpitis no significant difference. The results showed that macrophages play a dual role in immune regulation and phagocytosis in dental pulp lesions.