A vibrating toothbrush and an eccentric shaft are proposed. The vibrating toothbrush includes a head in which bristles are planted, and a handle from which a head coupler protrudes, the head being detachably coupled to the head coupler. The toothbrush includes an electric motor accommodated in the handle to generate rotating force; and an eccentric shaft rotatably connected to the electric motor, at least a portion thereof being eccentric to generate vibration and thereby transmit vibration to the head coupler. The eccentric shaft includes a motor fixing part connected to the electric motor; an eccentric weight configured to be offset from a rotation center of the electric motor; and a rotating shaft formed of a metal material, and connecting the motor fixing part and the eccentric weight.

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.

The present disclosure generally relates to oral care systems and devices. An oral care system includes a container defining an interior portion. The container includes a repository provided within the interior portion and configured to hold a fluid, and a barrier configured to maintain the fluid separate from the interior portion. The barrier is configured to be breached to expose the interior portion to the fluid. The system further includes a tube configured to slide in the interior portion of the container. The tube includes a distal end configured to breach the barrier when the tube is moved in a direction of the fluid in the repository.

A self-righting toothbrush includes a head section mounting a set of frontwardly extending bristles and a tail section having a rearwardly extending lateral asymmetry. A medial section has a pivot surface that allows the toothbrush to pivot and roll on a horizontal support surface. The head and tail sections have respective centers of mass. In a non-bristles up position, one or both of the head and tail section centers of mass are spaced from a vertical plane that includes a pivot point where the pivot surface contacts the support surface and is perpendicular to a toothbrush rolling direction. Due to a moment imbalance dominated by the tail section center of mass, a rotational moment induces the toothbrush to pivot about the neutral pivot axis to a bristles up position in which both centers of mass are aligned in the vertical plane.

An oral care system comprising: a. an electrical motor b. a base assembly comprising: i. an elongated base-assembly main body defining an elongate axis; and/or ii. a battery or a battery compartment optionally including electrical contacts for a battery, the battery and/or the battery compartment being electrically wired to the electrical motor; and c. a head assembly is disclosed herein. Methods and kits are also disclosed.

A system and method for treating a surface of a user’s body part, including: obtaining target surface condition information from a user’s body part surface using one or more condition sensors taken from a group consisting of: an optical sensor and a bio-sensor; classifying the target surface condition information using a machine learning classifier to determine an initial target surface condition classification; obtaining treatment progress information using a combination of motion sensor data and surface condition information from the one or more condition sensors; and classifying the treatment progress information using a machine learning classifier to determine a progress classification for treating the initial target surface condition classification.

A dental hygiene device such as an interdental brush includes a handle, a brush head having bristles extending therefrom, and a neck portion extending between the brush head and the handle. The neck portion of the dental hygiene device is configured to provide two modes of operation, a first cleaning mode of operation wherein the brush head contacts the teeth at a first pressure for a given application pressure, and a second cleaning mode of operation wherein the brush head contacts the teeth at a second pressure, greater than the first pressure, for the same given application pressure.

A dental hygiene device such as an interdental brush includes a handle, a brush head having bristles extending therefrom, and a neck portion extending between the brush head and the handle. The neck portion of the dental hygiene device is configured to provide two modes of operation, a first cleaning mode of operation wherein the brush head contacts the teeth at a first pressure for a given application pressure, and a second cleaning mode of operation wherein the brush head contacts the teeth at a second pressure, greater than the first pressure, for the same given application pressure.

Provided is a protection device and a grooming device for pets, in the field of storage articles. The protection devices includes: a mounting case, a protection cover, and a fixing structure. The mounting case is provided with a sliding space extending though two opposite ends thereof for mounting a working assembly. The protection cover is slidably connected to the sliding space. The fixing structure is connected with the mounting case and is used for fixing the protection cover as the protection cover slides to cover the working assembly. When the protection device is not in use, users may hold the mounting case and change the working state of the fixing structure to drive the protection cover to move and cover the working assembly, so that the working assembly is stored to avoid safety issues caused by the exposed working assembly, thereby improving the practicability of the protection device.

An oral care system includes an oral care implement and motion tracking attachment configured to allow tracking of the implement during an oral care activity such as tooth brushing. The oral care implement may include a handle and head. The tracking attachment is coupled to the implement and comprises colored tracking markers detectable by a programmable visual-based motion tracking unit. The tracking attachment in one configuration may comprise a housing with plural insertable tracking colored wedges. In another configuration, a colored tracking portion colored panels and optional colored neck band may be formed on or attached to the oral care implement. Both the tracking attachment and tracking portion embodiments as applicable facilitate tracking at least one of a position, orientation, movement, and the like of the oral care implement to which it is attached. The tracking attachment may be non-electric in nature without any onboard electronics in some embodiments.