New Bacterial Species Found In Human Mouth

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A new species of oral bacteria has been identified in the oral cavity that can aid researchers in the understanding of tooth decay and gum disease. It may also lead to improved treatments.  A healthy human mouth is inhabited by a large amount of different organisms, which include bacteria, viruses, protozoa, and fungi, of which bacteria are the most numerous (approximately 100 million in every ml of saliva), with more than 600 different species. Approximately 50% of these remain unnamed.

Researchers studied both tumours and healthy mouth tissue and found 3 bacterial strains of Prevotella, which could not be identified. Prevotella species are components of normal human oral microbial flora related to different diseases of the mouth and infections in different areas of the body. The investigators named this species Prevotella histicola (i.e., inhabitant of tissue). It is interesting to researchers that this Prevotella species were found both in normal and tumour tissue in the oral cavity. Thus, confirming previous studies that observed bacteria both in cells and tissues. Researchers need to learn more about oral bacteria in order to have a better understanding dental caries, gum diseases, and other oral diseases.

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