Scientists worldwide have conducted research to explain the impact of L. reuteri strains on various facets of oral health. Their investigations have studied its efficacy in reducing inflammation, augmenting the production of antimicrobial agents, fortifying the mucosal barrier, diminishing bleeding upon probing, and establishing positive clinical implications in the context of peri-implant mucositis and implantitis. These findings underscore the contributions of L. reuteri to oral health and signify its potential as a valuable intervention in dental care.