YTHDF1 and Peri-Implantitis: To investigate the role of YTHDF1 in peri-implantitis, we retrieved microarray data related to peri-implantitis using the gene expression omnibus (GEO) database and finally obtained GSE33774 microarray data, which showed a significant increase in YTHDF1 expression in peri-implantitis tissue (Figure 1A).