Toothbrush is the main tool for people to maintain oral hygiene. There are many types and brands of toothbrushes on the market. What kind of toothbrush is more suitable? This should be considered from the following aspects:The size of the toothbrush head: According to the regulations of the American

It is recommended to replace the toothbrush every three months to make the tooth cavity clean and less abraded. Regarding toothbrushes, there is another saying that is often mentioned: "Replace every 3 months." This statement is based on the fact that after a period of use, the toothbrush bristles w