It's important to note that using the same toothbrush over a period of time can lead to a buildup of bacteria, which may include harmful strains like Candida albicans, Streptococcus hemolyticus, and pneumococcus. These bacteria can enter the body through the mouth and cause infections in the digestive and respiratory systems. Additionally, if the oral mucosa is damaged, these bacteria can enter the bloodstream and cause serious blood diseases. This is why it's crucial to keep your toothbrush as dry as possible after use and expose it to sunlight for disinfection. It's also important to store your toothbrush and toothpaste in a well-ventilated and dry area to prevent the growth of harmful microbes. Finally, it's recommended that you replace your toothbrush every one to two months to avoid bacterial buildup.