Cetylpyridinium chloride
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Cetylpyridinium is a compound used to reduce plaque and gingivitis, as well as whiten teeth.
Cetylpyridinium is a compound used to reduce plaque and gingivitis, as well as whiten teeth.
When incorporated into mouthwashes, toothpastes, lozenges, or mouth sprays, cetylpyridinium chloride is expected to elicit a mechanism of action that decreases new dental plaque growth, decreases or removes existing dental plaque, diminishes the growth of pathogenic bacteria, and inhibits the production of virulence factors . Cetylpyridinium chloride is a quaternary ammonium compound that demonstrates a broad spectrum anti-bacterial activity . It possesses a cationic surface active agent surfactant which can absorb readily to oral surfaces . The molecules of this agent have both hydrophilic and hydrophobic groups . In action, the positively charged hydrophilic region of cetylpyridinium chloride molecules enables the compound to interact with microbial cell surfaces and even integrate into the bacterial cytoplasmic membrane . Consequently, there is a resultant disruption of bacterial membrane integrity causing a leakage of bacterial cytoplasmic components, interference with cellular metabolism, inhibition of cell growth, and ultimately - cell death . Moreover, cetylpyridinium chloride can also inhibit the synthesis of insoluble glucan by streptococcal glucosyltransferase, adsorb to pellicle-covered enamel, and inhibit co-adhesion of bacteria, and bind streptococcus mutans biofilms . This ability of cetylpyridinium chloride to be able to adsorb to pellicle covered enamel imparts substantivity to the compound molecules - that is retention in the mouth and continued antimicrobial activity for a period of time after rinsing . Taking these mechanisms into consideration, cetylpyridinium chloride may be considered an active ingredient that is effective in the treatment and prevention of bacterial or fungal disorders of the oropharyngeal cavity .
Typically employed as the cetylpyridinium chloride salt, this compound is commonly used as an active ingredient in various over-the-counter mouthwashes, toothpastes, lozenges, and mouth sprays where it is generally indicated for antiseptic actions, gingivitis and plaque prevention, as well as action or prevention against some other oropharyngeal bacterial infections .
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