In a patent application recently released to the public, it appears that Colgate may be planning to develop toothbrushes that have flavour-releasing or sensory-stimulating chemicals embedded at the back of the toothbrush head.
The patent abstract reads:
“The present invention pertains to an oral care implement, such as a toothbrush, including a sensory material that invokes a selective sensory response when in contact with the tissues and surfaces of a mouth of a user.” You can check out the document here
The sensory-stimulating chemicals that have been mentioned in the patent will provide either a hot, tingling sensation or a cooling effect while brushing. For example, capsaicin, a substance found in chili peppers, could provide the user with a burning sensation- perhaps not something everyone would enjoy. For a cool, fresh sensation a toothbrush containing menthol might be your preference.
Other chemicals mentioned were flavourings such as vanilla, cooling chemicals like menthol, potentially-calming chamomile or even caffeine.
One wonders whether they will also be developing toothpastes to complement the flavours and sensations!