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Since bacteria that normally reside in the oral cavity cause mouth infections, proper dental hygiene can prevent most cases of infection. As such, mouth infections are more common in populations with poor access to dental care (homeless, uninsured, etc.) or populations with health-related behaviors that damage one's teeth and oral mucosa ...
The host's immune system controls the bacterial colonization of the mouth and prevents local infection of tissues. A dynamic equilibrium exists notably between the bacteria of dental plaque and the host's immune system, enabling the plaque to stay behind in the mouth when other biofilms are washed away. [19]
In fact, bacteria linked to oral infections have been found in the brain fluid of people with brain infections, and P. gingivalis has been detected in the brains of Alzheimer’s patients.
Ludwig's angina (Latin: Angina ludovici) is a type of severe cellulitis involving the floor of the mouth [2] and is often caused by bacterial sources. [1] Early in the infection, the floor of the mouth raises due to swelling, leading to difficulty swallowing saliva. As a result, patients may present with drooling and difficulty speaking. [3]
Pericoronal infection is normally caused by a mixture of bacterial species present in the mouth, such as Streptococci and particularly various anaerobic species. [11] [13] This can result in abscess formation. Left untreated, the abscess can spontaneously drain into the mouth from beneath the operculum.
These bacteria are facultative anaerobes, and made up of non-motile and non-sporing cocci (round cells) that are catalase negative. It is a commensal and commonly inhabits the human mouth, throat, and upper respiratory tract, as part of the oral microbiota.
Researchers have examined the impact a common bacteria can have on head and neck cancers. Common mouth bacteria found to ‘melt’ certain cancers in ‘surprising’ discovery Skip to main content
However, there are some remedies used in the treatment of oral bacterial infection, in conjunction with mechanical cleaning. These include fluoride, which has a direct inhibitory effect on the enolase enzyme, as well as chlorhexidine, which works presumably by interfering with bacterial adherence.
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