A toothbrush is an essential oral hygiene tool in daily life, but not everyone knows how to properly care for it. Some people use their toothbrushes for years without replacing them, others store them in a sealed container after brushing, and even share a single toothbrush between two or three people. These toothbrush usage habits not only fail to clean the mouth but can actually become a source of oral bacteria.
Proper toothbrush care is as follows:
Rinse thoroughly with clean water after use to remove any remaining toothpaste and food debris. Shake thoroughly and place the toothbrush head upward in a tumbler in a dry, well-ventilated area. A damp toothbrush is a breeding ground for bacteria. Researchers have found that toothbrushes from both healthy and ill individuals can harbor significant bacterial growth after just one month of use. Unclean toothbrushes not only cause gingivitis but can also be a source of infection for various diseases.
Toothbrushes are often made of nylon, which can easily deform when heated. Therefore, they should not be washed in high-temperature water or sterilized by boiling. A single toothbrush shouldn't be used for long periods of time. It should generally be replaced quarterly, or if the bristles become curled or split, to prevent them from irritating the gums.
Adhere to the principle of one toothbrush per person to prevent cross-transmission of infectious diseases.