A recent clinical cross-sectional study by Özkan Karasu et al. evaluated salivary 8-OHdG, MDA, SOD, and GPx in peri-implantitis, peri-mucositis, and healthy groups—reporting significantly higher MDA, 8-OHdG, and SOD, with lower GPx in peri-implantitis [2]. Here, SOD1 is linked to mucositis.