The invention relates to a
toothbrush head and a use principle thereof. The
toothbrush head comprises a body and a
brush part arranged at the end of the body, the
brush part comprises a plurality of first
bristle clusters and a plurality of second
bristle clusters, the first
bristle clusters are arranged in a U shape to form a U-shaped bristle
cluster group, and the plurality of second bristle clusters are arranged in the U-shaped bristle
cluster group and are arranged along the direction of a
brush handle to form a linear bristle
cluster group; the height of the first bristle clusters is greater than that of the second bristle clusters; the upper side of the U-shaped bristle cluster group and the linear bristle cluster group achieve the positioning and supporting of the brush part respectively, so that the moving direction of the brush part is effectively limited, the brush part cannot move longitudinally during transverse
tooth brushing, and the brush part is perfectly matched with key essentials required in the
Babbitt's
tooth brushing method. Therefore, the use of the
toothbrush head is convenient and labor-saving, the cleaning effect on the surface of the whole dental crown and the whole slit between teeth is greatly improved, the cleaning range is expanded, and meanwhile,
gingival sulcus and
gingival margin can be effectively and accurately cleaned.