Bifidobacterium dentium

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Bifidobacterium dentium is a species of bacteria in the genus of Bifidobacterium, branched anaerobic bacteria from the Bifidobacteriaceae family.

B. dentium is a source of anaerobic infections, and is also tracked in polluted water to trace the source of fecal contamination. Scientists have shown that "B. dentium" can cause tooth decay in humans. Due to its high tolerance of the acidic environments reachable by the human mouth (pH 4.5), "B. Dentium" can sustain growth in the oral cavities, cause harm to the teeth, and break down sugar carbohydrates.[1]

B. dentium has been identified by researchers at Baylor College of Medicine and Texas Children's Hospital as producing a neurotransmitter that may play a role in preventing or treating inflammatory bowel diseases such as Crohn's disease.[2]


  1. ^ "The Bifidobacterium Dentium Bd1 Genome Sequence Reflects Its Genetic Adaptation to the Human Oral Cavity." PLOS Genetics:. N.p., n.d. Web. 02 June 2014.
  2. ^ Medical News Today, "Potential Link Between Intestinal Bacteria And Inflammation." 19 JUN 2012. Accessed online June 22, 2012 at