Abstract
BACKGROUND: Proteinuria is elevated protein in the urine possibly progressing to glomerular sclerosis, which was frequently observed in chronic kidney disease (CKD), diabetes, preeclampsia, etc. Previous studies have revealed that periodontitis and these diseases share common risk factors, so a study is necessary to discuss the potential relationship between periodontitis and proteinuria. For the moment, there are no reports that are concerned about the correlation between periodontitis and proteinuria. MATERIAL AND METHODS: We searched PubMed for studies associated with periodontitis and proteinuria published before March 2025. RESULTS: Existing evidence showed that periodontitis might increase the risk of proteinuria, as periodontal pathogens and periodontal inflammatory reactions were proven to injure the glomerulus and renal tubules contributing to the progression of proteinuria. On the other way, proteinuria might affect systemic inflammation and bone metabolism to increase the risk of periodontitis. CONCLUSIONS: This article reviews the relationship between periodontitis and proteinuria, reveals their predictable potential for chronic kidney injury, and makes recommendations for the treatment of periodontitis and proteinuria.