An oral care process which includes initiating a first operational sequence which includes generating an electric potential between a first sacrificial electrode and a second sacrificial electrode, the electric potential in the first operational sequence beginning with one of a first polarity and a second polarity, stopping the first operational sequence, and commencing a second operational sequence which includes generating the electric potential between the first sacrificial electrode and the second sacrificial electrode. The electric potential in the second operational sequence may begin with the other of the first polarity and the second polarity. The electric potential may be alternated between the first polarity and the second polarity at predetermined intervals during at least one of the first operational sequence and the second operational sequence.

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.

The present invention relates to an electrochemical device for releasing ions, comprising an electrical circuit comprising a first electrode and a second electrode adapted for providing a galvanic cell when the electrodes are exposed to a fluid constituting an electrolyte, and a boost converter adapted for amplifying a potential generated between the first and the second electrode. The electrical circuit further comprises a third electrode connected with an output side of the boost converter, wherein the second and the third electrode constitutes an electrolytic cell powered by the galvanic cell when the electrodes are exposed to a fluid. The present invention further relates to devices, such as a toothbrush or a shaver, adapted for being used in connection with a fluid, comprising such electrochemical device for releasing ions.

Disclosed is a new method, and a system, for increasing the pH of a composition applied on teeth and/or gums. The composition is gelable under the influence of a pH change. The pH change typically is a pH increase in the event of a direct pH-triggered gelation. The pH change typically is a pH decrease in the event of gelation induced by ions, such as calcium ions, released from a pH-sensitive carrier. The device comprises a dispensing unit for the composition, a distal end of which is adapted to apply said substance onto teeth or gums. The device further comprises an electrode system comprising first and second electrodes, the first electrode being adapted to be held against the composition at a location at or near teeth or gums, and the second electrode being adapted to be held against the composition at a location away from teeth or gums, The electrode system is adapted so as to provide an electrical potential difference of 1.5 to 10 Volt between the electrodes.

An oral care device may include: a body including a head; a plurality of teeth cleaning elements extending from the head; a first sacrificial electrode on the head; a second sacrificial electrode on the head and spaced apart from the first sacrificial electrode; a power source; and a controller configured to alternate between an ON state and an OFF state, wherein: in the ON state the controller operably couples the power source to the first and second sacrificial electrodes to create an electric potential between the first sacrificial electrode and the second sacrificial electrode, the electric potential having one of a first polarity and a second polarity, and for each successive transition from the OFF state to the ON state, the controller is configured to alternate between the first polarity and the second polarity.

A root volume nozzle for a hair dryer is equipped at a blow nozzle part of a dryer to increase a volume of the root part of hair. The root volume nozzle may be freely separated from the blow nozzle part to make hair volume while drying the hair, and provide anions to the hair using an anion paint.

The disclosure provides an ionic toothbrush having an elongated body that may be configured to have a one-piece design, or alternatively one or more components of the ionic toothbrush may be removable and/or replaceable. In some embodiments, the present disclosure provides an ionic toothbrush which includes a handle portion, a brush head portion including a plurality of bristle tufts; and an electrical circuit configured to transmit a negative electrical charge through at least a portion of the brush head, wherein the electrical circuit includes one or more sections of conductive resin present on an outer surface of one or both of the handle portion and the brush head portion.

A hair care device (B) comprises an ion generator (I), and a grounding protrusion protruding from the hair care device (B). When the hair care device comprises a sensor (MP), and ancillary elements (AE, G) for guiding hair to or along the sensor (MP), the grounding protrusion advantageously includes at least one of the ancillary elements (AE, G).

A toothbrush includes a handle, a head at a distal end of the handle comprising a bristle plate, a hole extending through the bristle plate, a plurality of bristles at least partially disposed in the hole and extending from the hole in a direction away from the head, and a reservoir in fluid communication with the hole. Fluid in the reservoir enters the tuft holes and is wicked out of the head of the toothbrushes by capillaries formed between the bristles.

An oral care process which includes initiating a first operational sequence which includes generating an electric potential between a first sacrificial electrode and a second sacrificial electrode, the electric potential in the first operational sequence beginning with one of a first polarity and a second polarity, stopping the first operational sequence, and commencing a second operational sequence which includes generating the electric potential between the first sacrificial electrode and the second sacrificial electrode. The electric potential in the second operational sequence may begin with the other of the first polarity and the second polarity. The electric potential may be alternated between the first polarity and the second polarity at predetermined intervals during at least one of the first operational sequence and the second operational sequence.