Is it okay to just brush your teeth without changing your toothbrush?

　　Just brush your teeth without changing your toothbrush

　　The purpose of brushing your teeth is to clean your mouth. Oral hygiene is very important. Many people just brush their teeth but never change their toothbrush. This is wrong.

　　Toothbrushes are often in a moist state, and the gaps between toothbrush bristles are the best breeding ground for bacteria and viruses to reside and breed. They can easily invade the human body through people's swallowing habits when brushing their teeth, or from damaged oral mucosa. It is best to replace your toothbrush every month.