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.

A tracking attachment for an oral care implement that includes a housing and a tracking unit configured to track position, orientation, or movement of the oral care implement. The housing may define a receiving cavity that is configured to receive a portion of the oral care implement. The housing may include a first housing portion having an inner surface that defines a first portion of the receiving cavity that is open at both of the first and second ends of the first housing portion and a second housing portion that mates with the first housing portion to detachably couple the second housing portion to the first housing portion. The second housing portion may have an inner surface that defines a second portion of the receiving cavity that is open at the second end of the second housing portion.

A handwashing device that provides an incentive for proper handwashing is presented. The handwashing device contains a housing, a brush layer, a processing unit, an activation element, an indicator element, and a timer switch. The housing is positioned within the brush layer. The processing unit is positioned within the housing. The processing unit, the activation element, the indicator element, and the timer switch are electronically connected to the processing unit. In the preferred embodiment, the housing may take the form of a rigid and waterproof electronics enclosure that houses the electronic components that constitutes the handwashing device. Additionally, the housing serves as a mounting implement for the brush layer to attach along where the brush layer conforms to the shape of the housing. In the preferred embodiment, the housing is constructed out of a light permeable material, such as, but not limited to translucent polycarbonate, or any other suitable material.

Provided is an oral care product comprising an effective amount of a soluble orally acceptable sulfate, e.g., sodium or potassium bisulfate, in a buffered, electrically conductive medium, which product is useful in a method for in situ production of per sulfate (S.sub.2O.sub.8.sup.2−), and methods of making and using the same, for example for whitening the teeth.

The invention provides for an oral treatment unit, or an assembly of a plurality of oral treatment units, for confining an electromagnetic field having a frequency in the range of 100 kHz to 300 MHz and adapted to be inserted into an oral cavity, which may form part of an oral cleaning device in combination with a base unit, including a first cleaning element coupled to the oral treatment unit. The oral treatment unit further includes a material structure coupled to the oral treatment unit adapted to receive an initial electromagnetic field and output a focused electromagnetic field, wherein the material structure has a passive electromagnetic field focusing function, which focuses the received initial electromagnetic field in the near-field region of the material structure. A further aspect of the invention provides for an oral treatment unit, or an assembly of a plurality of oral treatment units, for confining and modulating an electromagnetic field having a frequency in the range of 1 MHz to 300 GHz and adapted to be inserted into the mouth, which may form part of an oral cleaning device in combination with a base unit, including a first cleaning element coupled to the oral treatment unit. The oral treatment unit further comprises an electromagnetic field focusing element adapted to receive an electromagnetic field having an initial frequency and output a focused electromagnetic field. The electromagnetic field focusing element comprises a first material structure having a first passive electromagnetic field focusing function, which confines the modulated electromagnetic field at a given distance from the first material structure by performing one or more of: an attenuation rate control function in the near-field region of the first material structure; or a propagation direction modification function on the electromagnetic field. The electromagnetic field focusing element has a modulation function that modulates the confined electromagnetic field, thereby generating a modulated electromagnetic field.

An oral cleaning unit, e.g. a head for an oral cleaning and/or treatment device, includes electrodes for generating an RF field for providing an oral cleaning and/or treatment function. The unit includes at least a first and second protruding structure, which protrude in a same general direction away from a base or support structure. Each comprises one or more electrodes. The protruding structures are arranged facing one another and separated by a space or gap which is configured so as to be able to receive a tooth pushed or inserted therein between the first and second protruding structures, and with the protruding structures extending on either side of the tooth, i.e. straddling the tooth. This allows the RF electrodes comprised by the protruding structures to reach to a location at least part way down side faces of the tooth, closer to interproximal spaces, enabling interproximal spaces to be better cleaned, and optionally also to be sensed using RF energy/fields interacting with dental features, when the electrodes are suitably driven by an RF signal.

An oral care device (8) for use in aiding delivery of a substance for an oral treatment purpose within the mouth. The device comprises a field generator (16) which is adapted to generate a field (20) for exerting a force on particles (20) susceptible to the field to guide movement of the particles to a desired location. When operated in the mouth, this allows oral treatment particles to be quickly, safely and efficiently distributed within the mouth to the correct locations for performing the oral treatment function.

The invention provides for an oral treatment unit, or an assembly of a plurality of oral treatment units, for confining an electromagnetic field having a frequency in the range of 100 kHz to 300 MHz and adapted to be inserted into an oral cavity, which may form part of an oral cleaning device in combination with a base unit, including a first cleaning element coupled to the oral treatment unit. The oral treatment unit further includes a material structure coupled to the oral treatment unit adapted to receive an initial electromagnetic field and output a focused electromagnetic field, wherein the material structure has a passive electromagnetic field focusing function, which focuses the received initial electromagnetic field in the near-field region of the material structure. A further aspect of the invention provides for an oral treatment unit, or an assembly of a plurality of oral treatment units, for confining and modulating an electromagnetic field having a frequency in the range of 1 MHz to 300 GHz and adapted to be inserted into the mouth, which may form part of an oral cleaning device in combination with a base unit, including a first cleaning element coupled to the oral treatment unit. The oral treatment unit further comprises an electromagnetic field focusing element adapted to receive an electromagnetic field having an initial frequency and output a focused electromagnetic field. The electromagnetic field focusing element comprises a first material structure having a first passive electromagnetic field focusing function, which confines the modulated electromagnetic field at a given distance from the first material structure by performing one or more of: an attenuation rate control function in the near-field region of the first material structure; or a propagation direction modification function on the electromagnetic field. The electromagnetic field focusing element has a modulation function that modulates the confined electromagnetic field, thereby generating a modulated electromagnetic field.

An oral cleaning system provides motivating feedback to a user before brushing and includes: a power toothbrush (10); one or more sensors (26) on or within the toothbrush; a processor (30) within the toothbrush configured to process sensor information obtained from the one or more sensors during a first brushing session of a user; and a feedback system (40) on or within the toothbrush responsive to the processor and configured to communicate brushing information to the user at a time subsequent to the first brushing session but before a second brushing session of the user.

A head health care device and a head care system are provided. The head health care device includes: a body; a plurality of sensing components provided and projected on an outer surface of the body, in which each sensing component is configured to sense head information of a user; and a plurality of health care components provided and projected on the outer surface of the body, in which the health care components are configured to perform health care operations on a head of the user according to a control signal.