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The oral microbiome, mainly comprising bacteria which have developed resistance to the human immune system, has been known to impact the host for its own benefit, as seen with dental cavities. The environment present in the human mouth allows the growth of characteristic microorganisms found there.
The oral microbiota consists of all the microorganisms that exist in the mouth. It is the second largest of the human body and made of various bacteria, viruses, fungi and protozoa. [14] These organisms play an important role in oral and overall health. Anthony Van Leeuwenhoek was the first to view these organisms using a microscope he created ...
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 ...
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
Different areas of the oral cavity present different ecological niches, and each species has specific properties for colonizing different oral sites. S. mutans is most prevalent on the pits and fissures, constituting 39% of the total streptococci in the oral cavity. Fewer S. mutans bacteria are found on the buccal surface (2–9%). [7]
The bacteria is usually only found in the mouth, far from the colon. In the mouth, it’s one of the most common types of disease-causing bacteria , linked to gum disease and plaque buildup.
Oral candidiasis is the most common fungal infection of the mouth, [77] and it also represents the most common opportunistic oral infection in humans. [78] Infections of the mouth occur in about 6% of babies less than a month old. [7] About 20% of those receiving chemotherapy for cancer and 20% of those with AIDS also develop the disease. [7]
Bacteria in a person's mouth convert glucose, fructose, and most commonly sucrose (table sugar) into acids, mainly lactic acid, through a glycolytic process called fermentation. [ 23 ] [ 25 ] If left in contact with the tooth, these acids may cause demineralization, which is the dissolution of its mineral content.