Toothbrush

A manual toothbrush comprising an elongate handle with a head at one end of the handle, the head and handle defining a toothbrush longitudinal direction, oral hygiene elements extending from a surface of the head in a bristle direction transverse to this longitudinal direction, wherein;

• the oral hygiene elements comprise;
• bristle filaments disposed in tufts having a circular envelope, the tufts being arranged in polygons with a tuft at each apex of the polygon, the polygons being nested together in at least one nest of polygons, plural nests of polygons being arranged sequentially longitudinally on the surface of the head, the surface comprising a surface region proximal to the handle and a surface region distal from the handle the proximal and distal surface regions forming an angle less than 180° between them, two nests being located respectively on the proximal and distal surface regions;
• wherein the length of the bristle filaments varies with longitudinal distance, increasing in length to rounded peaks in the centre of each nest, and decreasing in length to the edge of each nest, giving troughs in between the peaks;
• and wherein the tufts have a cross-section dimension of 0.5-1.1 mm.