Toothbrush head e.g. hand toothbrush head, has boundary radius fitted to outer lower edge of basic rods of toothbrush head and/or to outer edge of base plate of driven toothbrush head of electrical toothbrush

摘要

The head has bristle tips and/or bristle cluster tips, which are inclined together, and bristle bundles (4) forming an internal angle (3) on the head in a group arrangement. A boundary radius (9) is fitted to an outer lower edge of basic rods of the hand toothbrush head and/or to an outer edge of a base plate of a driven toothbrush head of an electrical toothbrush. A V-shaped cavity (18) is formed between the basic rods of the hand toothbrush head.