Assessing the contribution of anaerobic microflora of the tongue to oral malodor

Article Abstract:

Some types of bacteria that colonize the tongue may break down proteins into the foul-smelling sulfur compounds that cause bad breath. Researchers performed oral exams, assessed odor, and took bacterial samples from the tongues of 16 people with bad breath. One week later, the patients began a seven-day treatment regimen that included brushing and rinsing with the antibacterial mouthwash, chlorhexidine gluconate (Peridex). Bad breath was more severe in patients who had strong tongue odor, deep grooves in the tongue, tongue coating, and tongue bacteria that produce sulfur compounds. Periodontal disease was not related to bad breath. After treatment, patients had a significantly lower average level of sulfur compounds, bad breath, and tongue odor. Bad breath disappeared in all patients and only one had noticeable tongue odor. Total bacterial counts decreased by 74% and the numbers of bacteria that produce sulfur compounds decreased in plaque and on the tongue.

Health aspects, Anaerobic bacteria, Tongue

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Identification of oral bacterial species associated with halitosis

Article Abstract:

Tongue bacteria from eight adults with halitosis and five control subjects were analyzed to determine the types of bacteria present only in people with halitosis. Thirty-two species, including 13 noncultivable species, were present only in subjects with halitosis, with Solobacterium moorei present in all eight subjects with halitosis.

Usage, Bacteria, Identification and classification, Polymerase chain reaction, Clinical report

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'Lab on a chip' probes cells for common sign of oral cancer

Article Abstract:

The first fully automated all-in -one test, otherwise known as lab on a chip, that can be programmed to probe cells taken from the mouth to find a common sign of cancer have been engineered by scientists. The test can accurately measure levels of epidermal growth factor receptor on three different types of oral cancer cells.

Diagnosis, Measurement, Cancer, Epidermal growth factor receptors

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