Abstract: A toothbrush head having a bristle surface with tufts of bristles extending therefrom comprising: first tufts of a mixture of co-extruded bristles and unitary bristles located adjacent to the distal end of the bristle surface; second tufts comprising a mixture of co-extruded bristles and unitary bristles located adjacent to the proximal end of the bristle surface; third tufts comprising tapered bristles located adjacent to the widthways opposite sides of the bristle surface; and fourth tufts comprising a mixture of co-extruded bristles and tapered bristles longer than the co-extruded bristles located as a cluster of fourth tufts widthways between the third tufts and longitudinally between the first and second tufts.

Abstract: A manual toothbrush having oral hygiene elements arranged in polygons with an oral hygiene element at each apex, and having plural polygons nested within each other. The oral hygiene elements may be bristles, which may be of two different types, or elastomer elements and may contain tooth-polishing additive. The toothbrush head surface may be flat or may have its region distal from the handle angled up.

Abstract: A toothbrush head with bristles comprising tapered and non-tapered bristles, in which the non-tapered bristles extend to two different lengths from the face, being a first greater length LN1 and a second shorter length LN2. In a preferred embodiment non-tapered bristles are combined with tapered bristles in tufts which are inclined in opposite directions away from and towards the grip handle.

Abstract: A toothbrush head in which oral hygiene parts, in particular toothbrush bristles, are set in a flexible pad. Typically the pad is made of a thermoplastic elastomer or a polyurethane gel material. The pad is supported on support parts which are connected to the toothbrush handle in various ways, for example arms or a web structure.

Abstract: A replaceable head part for an electric powered toothbrush comprising an elongate sleeve including a flexible portion, and containing a longitudinal drive shaft rotatable in oscillatory rotary motion. The drive shaft has a spherical bearing part received in a cavity in the sleeve. The head part incorporates a transmission system to convert the rotation of the head drive shaft into rotation of the bristle carrier comprising an eccentric pin extending from the head drive shaft to move the bristle carrier in oscillatory rotary motion, and having a spherical pin bearing part received in a receiving cavity in the bristle carrier.

Abstract: An oral care composition is described for use in the treatment or alleviation of the symptoms of dry mouth comprising polyvinyl pyrrolidone (PVP) or a derivative thereof, an anionic mucoadhesive polymer and an orally acceptable carrier or excipient.

Abstract: A toothbrush wherein longitudinally between its neck region and the grip handle is a an undulating region of transverse limbs integrally linked by folds with troughs between the limbs, the troughs containing a thermoplastic elastomer material bonded to the plastic material of said limbs with a ShoreA hardness of 60-70. Specific structures and dimensions of limbs and folds are disclosed.

Abstract: A toothbrush wherein longitudinally between its neck region and the grip handle is a an undulating region of transverse limbs integrally linked by folds with troughs between the limbs, the troughs containing a thermoplastic elastomer material bonded to the plastic material of said limbs with a ShoreA hardness of 60-70. Specific structures and dimensions of limbs and folds are disclosed.

Abstract: A toothbrush with a cleaning zone with bristles, and with a deformable element by which the cleaning zone can be adapted to the shape of the tooth surface by the cleaning force, where the deformable element comprises flexible wings tapering in a wedge shape toward the cleaning zone and with guide elements between them, at least one of the wings and/or guide element is made of a compressible elastic material.

Abstract: A toothbrush head having a bristle carrier, and bristles held in bristle holders, the bristle holders being connected to the bristle carrier by resilient connectors which cause the holders to move resiliently as brushing pressure is applied to the bristles and also cause the bristle holders to rotate. A suitable form of connector follows a conical surface between the bristle holder and bristle carrier.

Abstract: A replaceable head part for an electric powered toothbrush comprising an elongate sleeve including a flexible portion, and containing a longitudinal drive shaft rotatable in oscillatory rotary motion. The drive shaft has a spherical bearing part received in a cavity in the sleeve. The head part incorporates a transmission system to convert the rotation of the head drive shaft into rotation of the bristle carrier comprising an eccentric pin extending from the head drive shaft to move the bristle carrier in oscillatory rotary motion, and having a spherical pin bearing part received in a receiving cavity in the bristle carrier.

Abstract: A toothbrush head comprising a flexible bristle carrier such as an elastomer or gel pad or flexibly linked segments, on which bristles are mounted, with a support which supports the carrier at its base near the handle and at the opposite tip part, leaving the carrier unsupported thereby in a region longitudinally between these parts, the carrier being flexible such that it can deform under the forces of toothbrushing so that both its longitudinal and widthways sections become distorted. Preferably the support is also flexible.

Abstract: A toothbrush in which at least some of the bristles are linked together at their ends proximate to the head by a web in the toothbrush head, with a pad of a resilient elastomeric material adjacent to the web. When pressure is applied to the bristles this pressure is communicated to the web, and the web bears upon the pad, and communicates the pressure to the pad of elastomeric material. By the toothbrush excessive pressure between the teeth and the bristles during toothbrushing may be relieved.

Abstract: A toothbrush head in which the fixed ends of the bristles are embedded in a mass of a polyurethane gel material incorporated in the head. Typical nylon materials as used for toothbrush bristles are found to bind with polyurethane gels so that advantageously holders for the bristles need not be used. A moulding process is also provided for making the toothbrush head.