Microbiological Characterization of Oral Pathogens

Microbiological characterisation of oral pathogens encompasses the identification, phenotypic profiling and molecular analysis of microorganisms that inhabit the human oral cavity and contribute to dental caries, periodontitis and systemic infections. Researchers employ a combination of culture-based methods, advanced microscopy, selective media and molecular techniques such as quantitative polymerase chain reaction (qPCR) and 16S rRNA gene sequencing to delineate species composition, virulence factors and antimicrobial resistance profiles. Emphasis is placed on anaerobic bacteria, which often dominate subgingival biofilms and drive inflammatory processes. Contemporary studies reveal dynamic shifts in microbial communities in response to age, orthodontic appliances and host factors, underscoring the intricate ecology of oral biofilms. Understanding these shifts has practical applications in diagnostics, risk stratification and the development of targeted therapeutics, such as precision antimicrobials and probiotic interventions. This field holds global significance, as oral pathogens not only impact dental health but also act as reservoirs for systemic dissemination, linking periodontal disease with cardiovascular, metabolic and respiratory conditions.

Research from Nature Portfolio

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Microbiological Characterization of Oral Pathogens publication trend

The graph below shows the total number of articles in microbiological characterization of oral pathogens across all publications each year (not limited to Nature Index journals).

Technical terms

Anaerobic bacterium: A microorganism that thrives in environments devoid of oxygen.

qPCR (quantitative polymerase chain reaction): A technique to amplify and quantify specific DNA sequences in real time.

Subgingival plaque: A complex microbial biofilm located below the gum line within periodontal pockets.

Biofilm: A structured community of microorganisms embedded in a self-produced extracellular matrix adherent to surfaces.

16S rRNA gene sequencing: A molecular method for bacterial identification by sequencing a conserved ribosomal RNA gene fragment.

References

1. Prevalence of Oral Pathogen Slackia exigua among Clinical Orthodontic and Non-Orthodontic Saliva Samples. Microorganisms (2023).
2. Screening for Selenomonas noxia in a Pediatric and Adolescent Patient Population Reveals Differential Oral Prevalence across Age Groups. International Journal of Environmental Research and Public Health (2024).
3. Comparative Evaluation of Mogibacterium timidum in the Subgingival Plaque of Periodontally Healthy and Chronic Periodontitis Patients: A Real-Time Polymerase Chain Reaction (PCR) Study. Cureus (2024).