Identification of immune-related lncRNAs in periodontitis reveals regulation network of gene-lncRNA-pathway-immunocyte

•A pipeline for identifying immune-related lncRNAs in periodontitis was developed.•The connections between the immune-related lncRNAs and periodontitis features were investigated.•A comprehensive immunocytes infiltration landscape of periodontitis was illustrated.•Two distinct immune subtypes of periodontitis with different immune characteristics and gene expression pattern were identified.