Experimental flow of this study. A) Inducing macrophages towards M1 and M2 phenotypes; B) Dissecting the multifaceted effects of M1 and M2 macrophages from the aspect of metal soft tissue integration; C) Analyzing different regulatory effects of macrophage-derived immune microenvironments on human gingival fibroblasts on titanium surfaces: a) the cell adhesion behaviors alterations and their potential mechanisms were evaluated using enrichment analysis, cell adhesion assay, RT–qPCR, immunofluorescence, and correlation analysis; b) the fiber synthesis function of fibroblasts and their potential mechanisms were evaluated using enrichment analysis, Sirius red staining, RT–qPCR, immunofluorescence, and correlation analysis; c) the tissue contraction function of fibroblasts and their potential mechanisms were evaluated using enrichment analysis, collagen gel assay, RT–qPCR, immunofluorescence, and correlation analysis; d) the immune regulatory function of fibroblasts and their potential mechanisms were evaluated using enrichment analysis, RT–qPCR, and correlation analysis.