A method for manufacturing a brushing part including the following steps: providing the support, pierced with through-holes, passing through the channel formed by the support; forming the tuft of bristles, by assembling a plurality of bristles by one end opposite the free end, so as to form a base of the tuft, so that a diameter of a section of the tuft, in a plane transverse to a direction of extension of the tuft, is greater than a diameter of a through-hole; merging the ends forming the base of the at least one tuft so that an extension of the merged zone in a direction transverse to the direction of extension of the at least one tuft is greater than an extension of the base in the transverse direction before the merging step; inserting the one tuft by force into one of the holes of the channel of the support, depositing glue and filling with resin.

The various embodiments described herein include methods, devices, and systems for customizing dental care. In one aspect, a personalized dental care device includes a first customized mouthpiece including a top cleaning tray and a bottom cleaning tray, each customized based at least in part on an electronic 3-D dental model of a respective user's mouth. The personalized dental care device includes one or more power mechanisms, configured to couple with the first customized mouthpiece, and to transmit energy to at least one cleaning tray of the first customized mouthpiece. The personalized dental care device is configured to be operated in a plurality of modes. Each respective mode of the plurality of modes is associated with a different method for providing oral care.

An oral care appliance and a method of controlling pressure in the oral care appliance are disclosed. The pressure inside a mouthpiece of the oral care appliance is controlled by an actuator. The actuator is triggered when a targeted threshold value of an operational characteristic is reached. Automatic control of the pressure in the mouthpiece enhances both cleaning efficiency and user comfort.

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.

An oral cavity treatment device including a power component and a tray component that are detachably coupled together. The power component may include a housing having a cavity and a power source located therein. The tray component may include a tooth receiving channel and may have a first electrode and a second electrode located on opposite sides of the tooth receiving channel. The tray component may be detachably coupled to the power component in: (1) a first configuration whereby the first electrode is operably coupled to a positive terminal of the power source and the second electrode is operably coupled to a negative terminal of the power source; and (2) a second configuration whereby the first electrode is operably coupled to the negative terminal of the power source and the second electrode is operably coupled to the positive terminal of the power source.

A system is provided. The system comprises an image projection device (6) configured to project display information; a wearable or hand-held device (100) which when worn is subjected to spatial movement; and a compensation element (7) configured to adjust the image projection device (6) based on the spatial movement such that the movement of the wearable or hand-held device (100) is compensated for during projection of the display information by the image projection device (6). Further, a method of spatially stabilizing display information projected by an image projection device (6) upon operation of a wearable or hand-held device is provided.

The various embodiments described herein include methods, devices, and systems for customizing dental care. In one aspect, a dental care device is customized for a particular user, including: (1) a support plate having: (a) a first portion configured to be inserted into a mouth; and (b) an attachment mechanism configured to attach the dental care device to a drive assembly; and (2) an elastomer (elastic polymer) portion enclosing the first portion of the plate, the elastomer portion including a plurality of cleaning tips and shaped in accordance with dental details of the particular user.

Described herein are systems and methods for providing personalized oral care. A system for oral care comprises an oral insert. The oral insert is sized and shaped according to a user's oral cavity, and has a plurality of fluid nozzles and an effluence conduit to channel fluid out of the user's oral cavity. Pressurized fluid provided through the nozzles are directed to, for example, the interproximal spaces between the user's teeth. In some variations, a system comprises an oral insert and an elastomeric substrate that is attached to the oral insert. In some variations, the elastomeric substrate comprises a textured surface vibrates and/or mechanically agitates and/or translates along the surface of the user's teeth. In some variations, a system for oral care comprises a microbiome collection chamber. Some variations comprise dental shim devices that are used for acquiring oral structure data and alignment between the upper and lower arches.