head for a powered toothbrush, powered toothbrush and teeth brushing method

摘要

"HEAD FOR A DRIVED TOOTH BRUSH, DRIVED TOOTH BRUSH AND TOOTH BRUSHING METHOD". Toothbrush heads, e.g., for electric toothbrushes are presented. Toothbrush heads include a support member and a plurality of bristles or tufts of bristles extending from the support member, at least some of the bristles or tufts of bristles having different heights, the bristles being distributed such that their heights symmetrical, in a non-transportable mirror image symmetry, around two symmetry planes.