The present invention provides a mouthpiece for a vibratory tooth cleaning device for simultaneously cleaning several, preferably all, of a user's teeth, comprising a holder and a silicone casing substantially completely surrounding the holder. In addition, a vibratory tooth cleaning device and a manufacturing method for a silicone casing and mouthpiece are provided.

An oral care device may include: a body including a head; a plurality of teeth cleaning elements extending from the head; a first electrode on the head; a second electrode on the head and spaced apart from the first electrode, wherein at least one of the first and second electrodes is a sacrificial electrode; a power source; and a controller configured to operably couple the power source to the first and second electrodes to create an electric potential between the first and second electrodes so that ions are released from the sacrificial electrode during a brushing session; wherein the controller is configured to change a magnitude of the electric potential the brushing session ends.

An electric toothbrush includes a handle provided with a liquid feeding port, a toothbrush head connected to the handle and provided with a liquid discharging port communicated to the liquid feeding port through a liquid transfer passageway, a pumping mechanism disposed at the liquid transfer passageway and used for providing a pumping force for the liquid transfer passageway so as to transfer liquid from the liquid feeding port to the liquid discharging port and spray the liquid, and a transmission mechanism disposed on the handle and connected to the toothbrush head to drive the toothbrush head have a reciprocating motion relative to the handle.

An electric toothbrush includes a handle provided with a liquid feeding port, a toothbrush head connected to the handle and provided with a liquid discharging port communicated to the liquid feeding port through a liquid transfer passageway, a pumping mechanism disposed at the liquid transfer passageway and used for providing a pumping force for the liquid transfer passageway so as to transfer liquid from the liquid feeding port to the liquid discharging port and spray the liquid, and a transmission mechanism disposed on the handle and connected to the toothbrush head to drive the toothbrush head have a reciprocating motion relative to the handle.

Disclosed is an electric toothbrush, comprising: a handle; a drive element provided in the handle, an output shaft of the drive element extending out of the handle; a brush head disposed at one end of the output shaft remote from the handle and connected to the output shaft; and a stress triggering element and a stress detecting element, which are oppositely provided on surfaces of the output shaft; wherein the stress triggering element is configured for producing stress concentration at the position where the stress triggering element is located when the output shaft motions; and the stress detecting element is configured for detecting the stress at the position where the stress triggering element is located, thereby obtaining a pressure corresponding to the stress, the electric toothbrush as provided offers a simple structure for pressure detection.

Disclosed is an electric toothbrush, comprising: a handle; a drive element provided in the handle, an output shaft of the drive element extending out of the handle; a brush head disposed at one end of the output shaft remote from the handle and connected to the output shaft; and a stress triggering element and a stress detecting element, which are oppositely provided on surfaces of the output shaft; wherein the stress triggering element is configured for producing stress concentration at the position where the stress triggering element is located when the output shaft motions; and the stress detecting element is configured for detecting the stress at the position where the stress triggering element is located, thereby obtaining a pressure corresponding to the stress, the electric toothbrush as provided offers a simple structure for pressure detection.

This application relates to method of manufacturing a pressure chamber of a dental mouthpiece; to a method of manufacturing a dental mouthpiece and pressure chamber; to a mouthpiece manufactured with these methods, provided with these methods; to J-/U-shaped dental mouthpiece; and to systems comprising said mouthpieces. The method of manufacturing a pressure chamber joins a frame part and a flexible wall part by over-moulding. The method of manufacturing a mouthpiece starts with an essentially flat member comprising pressure chambers, and is folded and bended into a J-shaped or U-shaped trough configuration. The J-/U-shaped mouthpiece may comprise a multiple of trough sections and be flexible to ride along a dental arch and has its handle coupling at the anterior end of the mouthpiece.

A head unit configured to couple to a handle of an electric toothbrush, wherein the handle generates vibrational energy transferred to the head unit, the head unit including a proximal end and a distal end; a base adjacent to the proximal end, an exterior wall extending from the proximal end to the distal end, wherein the exterior wall encases a plurality of hollow chambers, wherein each of the plurality of hollow chambers are separated from one another by a scaffold, wherein the scaffold connects to the exterior wall; and a non-symmetrical bulb positioned at the distal end, wherein the non-symmetrical bulb includes a left half and a right half that are interlocked together by way of interlocking notches.

A toothbrush (10) includes a brush assembly (16) with at least three bristle arrangements (12), each having opposing inwardly-directed bristles (122, 124, 126) for simultaneously contacting facial and lingual surfaces (52, 54), and preferably also occlusal surfaces (56) of the teeth (50). Flexible linkages (14), interconnecting the bristle arrangements (12), maintain a relative spacing between the bristle arrangements (12) while allowing variation of an effective curvature of the brush assembly (16) such that the bristle arrangements (12) can ride along, and conform to a non-uniform curvature of, the arch of teeth. The toothbrush (IO) preferably also includes an actuation mechanism (22) for generating to-and-fro motion of the brush assembly (16) along the arch of teeth, most preferably combined with a more rapid small-amplitude oscillatory motion.

A powered toothbrush includes a handle, a power source disposed in the handle, a head including a cavity disposed at a distal end of the handle, an electrically conducting element disposed in the cavity and electrically connected to the power source, and a movable cleaning element connected to the head and movable relative to the cavity. The movable cleaning element includes a tooth cleaning support member, a tooth cleaning element mounted on the support member, and a ferromagnetic member. Application of an electrical current to the electrically conducting element generates a magnetic field at the electrically conducting element. The magnetic field selectively at least one of attracts and repels the ferromagnetic member to move the movable cleaning element relative to the electrically conducting element.