Abstract: A toothbrush having a handle portion and a neck portion connecting the handle portion with a head. The head has a brushing side and a rear side. The brushing side includes a plurality of bristle tufts for cleaning the teeth. The tufts are attachable in the head through tufting apertures, with each tufting aperture being assigned a blind-end hole having sidewalls and a bottom. The cross-sectional area of the head between a first bottom and the rear side differing from a cross-sectional area of the head between a second bottom and the rear side. The first bottom and the second bottom are arranged in the head in such a way that the minimum distance between the first bottom and the rear side as well as the minimum distance between the second bottom and the rear side are each in the range of between about 0.5 and about 2.5 mm.

Abstract: The invention relates to a device for dental and/or oral care, especially a toothbrush, comprising a preferably rod-shaped tool support to which a cleaning tool, especially a bristle field, can be fastened. The tool support is configured as a composite body that comprises an enveloping body from a first material, preferably plastic material, and a functional body from a second material, preferably metal, which is embedded in the enveloping body. The dental and/or oral care device is characterized in that the functional body is configured in at least some sections thereof as a trelliswork girder frame that has longitudinal girders substantially extending in the longitudinal direction of the tool support and a plurality of cross-girders. The enveloping body is especially transparent so that the functional body is visible through the enveloping body.

Abstract: The invention relates to a device for dental and/or oral care, especially a tooth brush, comprising a preferably rod-shaped tool support to which a cleaning tool, especially a bristle field, can be fastened. The tool support is configured as a composite body that comprises an enveloping body from a first material, preferably plastic material, and a functional body from a second material, preferably metal, which is embedded in the enveloping body. The dental and/or oral care device is characterized in that the functional body is configured in at least some sections thereof as a trelliswork girder frame that has longitudinal girders substantially extending in the longitudinal direction of the tool support and a plurality of cross-girders. The enveloping body is especially transparent so that the functional body is visible through the enveloping body.

Abstract: Toothbrushes are provided which have various features that may include one or more tooth cleaning elements having a variety of shapes and sizes, one or more gum treating elements having a variety of shapes and sizes, and/or one or more soft tissue/tongue treating elements having a variety of shapes and sizes.

Abstract: Stackable long-term storage container especially for radioactive waste comprises especially convoluted lid and bottom pieces to facilitate stacking. The lid is convoluted providing an annular projection which serves to allow grabbing of the lid and, together therewith, the drum. The floor has a rim which extends axially away from the floor and then is bent over upward toward the drum with drainage openings provided at the bottom edge. A resilient jacket is disposed around the bottom edge and surrounds the rim to prevent direct contact between the drums and scratching during stacking. A fiberglass reinforced plastic insert inside the drum protects the inner wall from damage. The special shape of the drum prevents causes for corrosion under all operating conditions of the drum, especially during very rough handling of the drum during filling, transport and storage.