Periodontal Diseases and Oral Microbial Dynamics
Summary
Periodontal diseases comprise a spectrum of inflammatory conditions that affect the gingiva and supporting structures of the teeth. Initiated by the formation of polymicrobial biofilms on the tooth surface, these disorders range from reversible gingivitis to destructive periodontitis, characterised by connective tissue breakdown and alveolar bone loss. The transition from health to disease hinges on a delicate equilibrium between the resident oral microbiota and the host immune response. In health, symbiotic microbial communities aid in maintaining tissue homeostasis and barrier function. Environmental stresses, immunological perturbations or systemic factors such as diabetes and malnutrition can disrupt this balance, leading to dysbiosis—a state of microbial imbalance associated with pathogenic species overgrowth. Contemporary research emphasises the dynamic nature of subgingival ecosystems, where interspecies interactions, metabolic cross-feeding and virulence factor expression shape disease progression. Technological advances, particularly in high-throughput sequencing and metagenomics, have unveiled previously unrecognised taxa and functional pathways implicated in periodontal breakdown. These insights not only deepen understanding of pathogenesis but also support the development of targeted diagnostics, personalised antimicrobial therapies and novel host-modulation strategies. Collectively, multidisciplinary efforts are refining our capacity to predict disease risk, monitor treatment responses and promote oral and systemic health on a global scale.
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Periodontal Diseases and Oral Microbial Dynamics publication trend
The graph below shows the total number of articles in periodontal diseases and oral microbial dynamics across all publications each year (not limited to Nature Index journals).
Technical terms
Biofilm: A complex, surface-attached community of microorganisms embedded in a self-produced matrix.
Microbiota: The assemblage of microorganisms, including bacteria, fungi and viruses, inhabiting a defined environment such as the oral cavity.
Dysbiosis: A disruption in the normal balance of microbial communities associated with disease states.
16S rRNA gene amplicon sequencing: A molecular method for profiling bacterial communities by targeting conserved regions of the small subunit ribosomal RNA gene.
Nanozyme: A nanomaterial with enzyme-like catalytic activity used to modulate microbial populations or degrade biofilms.
References
- The potential use of nanozymes as an antibacterial agents in oral infection, periodontitis, and peri-implantitis. Journal of Nanobiotechnology (2024).
- Optimal 16S rRNA gene amplicon sequencing analysis for oral microbiota to avoid the potential bias introduced by trimming length, primer, and database. Microbiology Spectrum (2024).
- Necrotizing periodontal disease in a nutritionally deficient patient: A case report. Frontiers in Dental Medicine (2022).
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