Chlorhexidine is another example of a non-specific antimicrobial agent.[1] It acts by disrupting bacterial deposition and plaque formation on the teeth, further assisting in reducing gingivitis.[20] Chlorhexidine can also reduce the amount of pre-existing plaque.[3] Chlorhexidine is generally found on products such as dental chews or oral rinses and may not be suitable for use in a long-term diet as prolonged use may lead to staining of the teeth and tongue, and change the taste of the food.[12]