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

The shape of the brush head is generally square and diamond. The square brush head can effectively clean every surface of the teeth. The diamond-shaped brush head has a sharper tip than the square design, making it easier to clean deeply into the oral cavity. Toothbrushes can clean teeth with any sh

Purpose: To analyze the related factors that affect the hardness of the bristles, to compare the plaque removal effects of toothbrushes with different hardness and different materials, to study the effect of toothbrushes on the brushing effect, and to guide residents to choose suitable toothbrushes