Toothbrushes are dry waste. Dry waste refers to other domestic waste except recyclable materials, hazardous waste and wet waste. Dry waste mainly includes lunch boxes, napkins, wet paper towels, toilet paper, plastic bags, food packaging bags, heavily polluted paper, cigarette butts, diapers, disposable cups, big bones, shells, flower pots, etc. The requirement for dry waste placement is to drain the water as much as possible, and the domestic waste of difficult to identify categories shall be put into the dry waste container.
As long as the toothbrush is used for a period of time, a large number of bacteria will grow and reproduce, including Candida albicans, hemolytic streptococcus, pneumococcus, etc. These bacteria will directly invade the human digestive tract and respiratory tract through the oral cavity, which may cause enteritis and lung infection. At the same time, if they enter the human blood through the damaged oral mucosa, they will cause serious blood diseases. Therefore, after using the toothbrush at ordinary times, in addition to keeping the toothbrush as dry as possible, it is best to often expose the toothbrush to the sun for disinfection. The place where the toothbrush and toothpaste are usually stored should be ventilated and dry, otherwise bacteria and other harmful microorganisms will breed.
The renewal frequency of toothbrush should be between one month and two months. The tooth cavity is clean and the wear is small. As for the toothbrush, there is another saying that the toothbrush needs to be changed every three months. The basis of this statement is that after using for a period of time, the bristles of the toothbrush will curl and damage, so the cleaning ability of the old toothbrush will become worse and can not well protect the health and hygiene of the teeth. The three-month time limit is based on the damage of most people's toothbrushes.