Using the Immune System for Effective Periodontal and Caries Management

The immune system plays a critical, albeit complex, role in oral health, mediating the host response to microbial challenges that lead to prevalent diseases like periodontal disease and dental caries. While essential for protection, immune responses, particularly chronic inflammation, can paradoxically contribute significantly to tissue destruction. This comprehensive review uniquely integrates recent advances in oral immunology with clinical applications, providing novel insights into immunomodulatory therapeutic strategies that distinguish it from previous reviews by emphasizing translational approaches and personalized immunogenetic-based interventions. This review synthesizes current understanding of the intricate interplay between the oral microbiome, innate and adaptive immunity, and the pathogenesis of periodontal disease and caries. We investigate how key immune cells (neutrophils, macrophages, and lymphocytes) and mediators (cytokines and chemokines) orchestrate responses that can lead to alveolar bone loss and enamel demineralization. Saliva's crucial role in modulating oral immunity is also highlighted. The clinical significance of this work lies in its potential to guide evidence-based immunomodulatory treatments, improve patient outcomes through personalized therapeutic approaches, and reduce the systemic health burden associated with chronic oral inflammatory diseases. By dissecting these immunological mechanisms, this article is aimed at underscoring the potential for developing novel, targeted immunomodulatory strategies-including vaccines, host modulation therapies, and personalized approaches based on immunogenetics-for more effective prevention and management of these common oral diseases, ultimately promoting better oral and systemic health.