A method and an apparatus for producing bristle fields for brushes. The bristles are filled into a hole of a mold form by a feed line having an upstream end with an inlet valve and a downstream end with an outlet valve. The method includes steps of forming a bundle of bristles; applying a predefined gas pressure above atmospheric pressure in the feed line the inlet and outlet valves; inserting the bundle into the feed line at an insertion station between the inlet and outlet valves; and maintaining the predefined pressure between said valves; draining off a first volume of gas from the feed line via the outlet valve while feeding a second volume of gas into the feed line via the inlet valve, thereby moving the bundle of bristles in the feed line towards the mold form, wherein the pressure in the feed line upstream and downstream of the bundle of bristles is kept above atmospheric pressure.

Disclosed are a brush head fixture for production of a toothbrush head and a manufacturing method of the toothbrush head. The brush head fixture includes a fixture main body, a bristle accommodating part, a material sealing surface, and one or more positioning holes. The bristle accommodating part is configured for accommodating the free end of implanted bristles in the process of manufacturing the toothbrush head. The material sealing surface is located on one side of the fixture main body away from the bristle accommodating part and configured for preventing the material of the coating layer from entering the bristle accommodating part when forming the coating layer. The positioning hole penetrates through the wall of the fixture main body between the material sealing surface and the bristle accommodating part. The positioning hole is configured for injection molding the retaining part, and also for positioning the retaining part obtained through injection molding.

A mould system for producing a tufted body having a curved outer surface, for example one hemispherical half of a spherical toothbrush head, the mould system comprising a mould form having a receptacle and an annular flange circumscribing an open end of the receptacle and at least one slot formed substantially radially in the flange and extending into a sidewall of the receptacle.

A composite safety toothbrush is disclosed, and in particular, methods for making and forming the composite. The toothbrush apparatus detailed herein employs a composite head made from a rigid inner polymer material and a softer thermoplastic material surrounding the inner material. The softer material provides safety for prison toothbrush applications as well as elderly and patient care where care givers may brush the teeth of a patient. Innovative pin connectors in the inner toothbrush head assist in the composite formation. The toothbrush solution herein further importantly provides for a toothbrush having a flexible handle, also providing safety in a prison environment.

A method of producing a dental arch toothbrush (100), including the steps of detecting (S101) a dental arch shape (101) of a patient; and milling (S102) the dental arch shape (101) out of a disk (103) in which the bristles (105) of the dental arch toothbrush (100) are embedded.

The various embodiments described herein include methods, devices, and systems for customizing dental care. In one aspect, a dental care device is customized for a particular user, including: (1) a support plate having: (a) a first portion configured to be inserted into a mouth; and (b) an attachment mechanism configured to attach the dental care device to a drive assembly; and (2) an elastomer (elastic polymer) portion enclosing the first portion of the plate, the elastomer portion including a plurality of cleaning tips and shaped in accordance with dental details of the particular user.

Disclosed is a brush-like device and related manufacturing method. The device includes at least a handle head portion obtained by way of plastic material moulding on a terminal portion of a metal stem on which bristles of the brush are fixed, the terminal portion of the stem being retained in the moulding position by a through seat of a mould which closes on the stem, and wherein, prior to the moulding of the head portion, it is provided to apply a covering sheath of elastically yieldable material on the terminal portion of the stem, the sheath being of elongate tubular shape having a length of at least 2.5 mm.

A method for manufacturing an interdental cleaning tool is provided that is capable of suppressing molding defects of the interdental cleaning tool. The method for manufacturing an interdental cleaning tool includes: a first step of injecting a base material into primary molds 40, 41 to mold a base material portion 10 including a base section 11 and a shaft section 12 extending from the base section 11; and a second step of injecting a soft material into secondary molds 50, 51, in which the base material portion 10 is placed, from a position corresponding to a middle part 12b of the shaft section 12 located further toward the proximal side than a distal end part 12a to mold a soft portion 20 including a covering section 21 that covers the distal end part 12a of the shaft section 12 and a plurality of projections 22 projecting from the covering section 21, and an extension soft portion 30 that covers the middle part 12b of the shaft section 12 so as to extend the covering section 21 toward the proximal side of the shaft section 12, the extension soft portion 30 not having the projections 22.

An oral care implement comprises a first and a second part. The first part has a carrier plate having a back side and a front side opposite the back side, and at least one cleaning element extending from the front side. The second part has a support plate and at least a portion of a neck, the support plate having a front side and a back side opposite the front side. The back side of the carrier plate is secured to the front side of the support plate by means of a plastic material molded around at least a portion of the back side of the support plate and over at least a portion of the carrier plate to provide a non-detachable connection between the first and the second part.

A brush head (32) including: a supporting portion (42) of a brush neck (40); a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands having a proximal end (23) and a free end (25), wherein each of the plurality of bristle tufts comprises a proximal end head portion (26) melted into a first shape within a mold; and an elastomeric matrix (30) comprising at least a portion of the hard brush neck and the proximal end head portions, wherein the first shape of the proximal end head portion is configured to engage the elastomeric matrix such that the bristle tufts are retained within the elastomeric matrix.