When using electric toothbrushes, many people are more concerned about replacing the brush head. Originally, buying a good toothbrush is to keep the oral cavity clean and strong teeth. However, if the brush head is not replaced in time, the bristles often carry a large amount of bacteria, which adversely affects oral health. How often is the electric toothbrush replaced?

　　Regarding the replacement frequency of electric toothbrush heads, the earliest statement is that it should be replaced within 3 months. It is also recommended by most dentists, because most people use the toothbrush for about 3 months, and the bristles are bent and worn due to prolonged use, which greatly reduces the brushing effect. At this time, the brush head needs to be replaced in time. Of course, there are some cases. For example, some people brush their teeth too hard and the toothbrush wears quickly. It may take 1-2 months to replace the toothbrush.

　　One thing we do every day is to clean the mouth with a toothbrush. The purpose is nothing more than removing plaque. In this regard, whether it is an electric toothbrush or a manual toothbrush, it can be done as long as the brushing method is correct. In fact, the cleaning effect is directly proportional to the brushing time, and the scientific brushing time is at least about 2 minutes. If this cannot be guaranteed, then the electric toothbrush has an advantage over the manual toothbrush in cleaning results.

　　The size of the brush head varies from person to person, but it is generally recommended to choose a small brush head. Although the toothbrush with a large head has a large coverage, you can brush a few more teeth with one brush, saving time and effort, but if the brush head is too large, there is not enough flexibility, and some dead ends such as the back side of the teeth are difficult to brush. On the contrary, the compact brush head is much more flexible to use, and can be easily brushed into the innermost part of the mouth to clean the mouth in 360 °.

　　When the user selects an electric toothbrush, in addition to the function of the machine itself, the brush head is also a major factor in the user's purchase and selection. Because the oral cavity is a weak area of ​​the human body, it is generally recommended to choose soft bristles. One is that it can easily penetrate the gingival sulcus and the gap between teeth to achieve the effect of cleaning the teeth. The second is not too soft because the effect of too soft bristles on the teeth. not too good. Third, although a hard-bristled toothbrush feels "clean" when brushed, it is easy to scratch teeth and gums. So when you buy an electric toothbrush, you can press your bristles with your fingers. If your fingers are irritating, it means that they are too hard. It is not recommended to buy.