Pathogenic bacteria in oral cavity

Pathogenic bacteria in the oral cavity refers collectively to bacterial species capable of causing oral diseases such as dental caries, gingivitis, and periodontitis. This group includes Gram-positive and Gram-negative bacteria, notably *Streptococcus mutans* and *Lactobacillus spp.* (cariogenic), and *Porphyromonas gingivalis*, *Treponema denticola*, *Tannerella forsythia*, *Fusobacterium nucleatum*, *Aggregatibacter actinomycetemcomitans*, and others associated with periodontal disease[1][3][7]. These bacteria interact with oral surfaces to form biofilms (plaque), produce acids and proteolytic enzymes that degrade host tissues, evade the immune system, and can develop antibiotic resistance[2][3][5]. Treatments target these bacteria with antibiotics, antiseptics, or probiotics, though antibiotic resistance and disruption of beneficial oral microbiota remain important safety concerns[2][3]. Clinical and molecular biomarkers can monitor their presence and the status of oral disease[1][3]. Because this entry refers to a whole group of organisms rather than a specific molecule, gene, or protein, it does not meet the criteria for a canonical molecular target, and is best considered a placeholder or umbrella term.

Other names

Oral pathogenic bacteriapathogenic oral microbiotaoral pathogensperiodontal pathogens

Inhibition of bacterial cell wall synthesis; inhibition of protein synthesis; disruption of bacterial biofilm; alteration of bacterial metabolism; and immune modulation via anti-inflammatory or anti-bacterial activity.