A contour-adjustable toothbrush is a device that provides a more thorough brushing experience while eliminating the need to remove the device from the mouth during brushing. A first brushing assembly and a second brushing assembly are slidably engaged into a housing handle that may be grasped by the user. The first brushing assembly and the second brushing assembly each include a flexible brush head with a concave surface. The concave surface of the first brushing assembly is oriented away from the concave surface of the second brushing assembly, enabling the first brushing assembly and the second brushing assembly to clean the upper teeth and lower teeth simultaneously. The first brushing assembly and the second brushing assembly are independently adjustable in order to adjust the length of the device. An electronic variant of the device includes a power supply and at least one actuator.

The present disclosure provides a brushhead for an power toothbrush detachably attached to a handle of the power toothbrush, the handle including a vibrating drive shaft, the brushhead comprising: a main body defining a receiving cavity which is configured to receive at least a portion of the vibrating driving shaft, the main body including a cavity wall substantially surrounding the receiving cavity and an end connected to the handle, with an opening which is defined in the end of the main body in air communication with the receiving cavity, so that the vibrating driving shaft is capable of being inserted into the receiving cavity through the opening; and an engaging assembly mounted in a side wall of the main body, the engaging assembly comprising an elastic member, which is made by metal material; wherein, a recess is defined in the outer surface of the side wall, the elastic member is deformably received in the recess, the elastic member is elastically deformed by force provided from the vibrating drive shaft when the brushhead is attached to the handle of the power toothbrush.

Provided is a light irradiated toothbrush, in which light sources, irradiating light having mutually different wavelengths, are arranged in alternation at the bottom of waveguide bristles so that light of different wavelengths give rise to constructive interference which strengthens the intensity of the irradiated light, and the height of the light sources are varied on the basis of the wavelength of the light irradiated therefrom so as to effectively transmit light of short wavelengths to the waveguide bristles, and light having mutually different wavelengths are transmitted by means of the waveguide bristles, thereby effectively transmitting the light to the mouth of a user.

The present invention relates to a toothbrush and, more particularly, to a toothbrush produced by providing soft bristles on a side of a solid bar and capable of easily and simultaneously cleaning a total of six surfaces, e.g., upper and lower flat surfaces, upper left and upper right side surfaces, and lower left and lower right side surfaces, of teeth based on a simple user operation of grasping the toothbrush with a hand.

An oral care implement including a handle and an oral care refill head. The handle has a gripping portion, an engagement component coupled to a distal end of the gripping portion, and a stem. The engagement component includes a plate portion and a first engagement feature. The stem extends through an opening in the engagement component and protrudes from the plate portion. The oral care refill head includes an oral care treatment portion and a sleeve portion. The sleeve portion has an inner surface that defines a sleeve cavity having a cavity axis and a second engagement feature. When the oral care refill head is detachably coupled to the handle, the first and second engagement features mate with one another to at least one of: (1) position the oral care refill head and the handle in an operational alignment; and (2) lock the oral care refill head to the handle.

A dental tool can include a handpiece with a working tip. The working tip can be driven by the handpiece to oscillate. The oscillations have a rate of less than 500 cycles per second, in order to reduce or eliminate the generation of aerosols created by oscillation of the working tip. The working tip can include a set of teeth to remove calculus, stains, or plaque from a tooth surface, or can include an abrasive surface or coating, or a prophy cup.

An oral care device is disclosed. The oral care device includes a housing being at least partly formed of an electrically isolating material; a capacitor having a first electrode and a second electrode, the first and second electrodes being electrically isolated by the electrically isolating material of the housing such that they are not exposed to an outside environment of the oral care device; and a processor unit being electrically connected to the first and second electrodes. The processor unit is arranged such that during operation of the oral care device it determines a capacitance (x) of the capacitor in order to determine whether the oral care device is within a user's oral cavity or not.

An electric toothbrush apparatus including an electric toothbrush handle and a cap coupled thereto for protecting tooth cleaning elements and a user actuatable switch. The electric toothbrush apparatus includes an electric toothbrush handle extending along a handle axis. The electric toothbrush handle comprises a handle portion comprising user actuatable input means, a power source, and a motion inducing assembly. A cap is detachably coupled to the electric toothbrush handle. The cap comprises a tubular sidewall forming a cavity about a cap axis and a protective member axially extending from a bottom edge of the tubular sidewall in a cantilevered manner so as to overly the user actuatable input means to prevent accidental actuation thereof.

The present disclosure is directed to methods and apparatus for monitoring bone characteristics for various conditions such as osteoporosis and/or periodontitis. In various embodiments, a dental hygiene appliance (100) may include: a handle (102) adapted to be held by a user; a tool (106) secured to the handle to perform a dental hygiene-related task; emitter(s) (114A, 116, 360A) mounted on the dental hygiene appliance to emit wave(s) (252, 362) towards a mandible (250, 350) of the user; sensor(s) (114B, 116, 360B) mounted on the dental hygiene appliance to detect wave(s) (254, 364) propagating away from the mandible, wherein the detected wave(s) originate from or are caused by the emitted wave(s); and a controller (108) communicatively coupled with the emitter(s) and the sensor(s). The controller may: receive, from the sensor(s), signal(s) indicative of the detected waves; and determine, based on the signal(s), bone characteristic(s) of the user.

An oral hygiene device in the form of a toothbrush 10 comprises a handle section 12, a cartridge 14 containing a cleaning composition held under gas pressure, an actuating mechanism 16 and a head section 18. The cartridge has a discharge opening at a front end thereof, which includes a control valve 26 comprising a valve stem 27. The actuating mechanism 16 includes a plunger 40 and a lever formation 38 which acts on the plunger. The lever formation is acted upon by a hand-operated actuating button 58 for dispensing the plunger rearwardly for depressing the valve stem 27 for releasing cleaning composition from the cartridge causing the cleaning composition to be conveyed under gas pressure along passage 48 of the valve stem and into passages 46, 32, 37 and 29 where it is discharged via opening 31 at a distal end of the head section 18 onto bristles 28.