The invention discloses a water toothpick, which includes a high-pressure gas generator, a water tank, a valve, a nozzle assembly and a water supply, wherein the high-pressure gas generator is communicated with the nozzle assembly, the valve is arranged between the high-pressure gas generator and the nozzle assembly, and the water supply is respectively communicated with the water tank and the nozzle assembly, so as to convey water in the water tank to the nozzle assembly. When the water toothpick is used, the high-pressure gas generator transmits generated high-pressure gas to the valve, and after a certain amount of water is stored in the nozzle assembly, the valve is opened, and the high-pressure gas at the valve is instantaneously discharged into the nozzle assembly, mixed with the water in the nozzle assembly to form compressed vapor, and then sprayed out from the nozzle assembly to complete one cleaning action.

Disclosed is a portable teeth cleaning apparatus, which implements, through a pump in a teeth cleaner, a function of supplementing a teeth cleaning liquid from a connecting seat connected to the teeth cleaner. Therefore, it is no longer necessary to connect the teeth cleaner to a teeth cleaning liquid source through a connecting hose during teeth cleaning, and liquid leakage is avoided during liquid supplement. Further, a seating/unseating status and whether a liquid reservoir is filled up are detected automatically, and a controller controls on/off and switching of a series of valves, thereby implementing automatic liquid supplement of the teeth cleaner.

An air/water dental syringe includes a hand-piece, a coupler, and a tip that is releasably coupled with the hand-piece. The coupler includes a collar that releasably engages the hand-piece, and a cap that releasably engages the collar. The cap includes a body having a first end, a second end, and a cavity located between the first end and the second end, such that when the cap engages the collar, the collar extends into the cavity through the first end. The cap also includes a receiver located at the second end of the body. The tip includes a tube, and a post mounted to the tube. The tube has a first end that extends extend through the cap and the collar of the coupler and releasably engages the hand-piece, and a second end operable to dispense air/water from the tip. The post extends away from the first end of the tube and is sized and configured to extend into the cap's receiver to prevent the tip from rotating relative to the hand-piece.

Provided is a dual spray nozzle tip assembly having a geometry that is split into several sub components to enable robust manufacturing and assembly of the resulting nozzle. The nozzle tip assembly is configured to be attached to a device configured to provide a pressurized fluid and gas therefrom. The nozzle tip assembly comprising an elongated body defining a fluid lumen and at least one gas lumen between a distal end and a proximal end. The elongated body including at least an attachment profile, a straight portion, and an outlet region. The outlet region defines a shear nozzle in communication with the fluid lumen and at least one gas outlet in communication with the at least one gas lumen, the outlet region is configured to direct pressurized gas from the at least one gas outlet and to produce a desired spray pattern from the shear nozzle.

A dermal treatment handpiece has a body with proximal and distal ends, a jet spray delivery head formed at the distal end of the body and connected to sources of a liquid suspension of a therapeutic agent and of a pressurized gas for a selectable combined supply thereof to the jet spray delivery head. The jet spray delivery head has a base formed at the distal end of the body, a localized environmental jet spray isolation chamber extending from the base to a distal exit port, a nozzle extending into the isolation chamber from the base, connected to a combined inflow of the liquid suspension and the pressurized gas, and one or more tubes mounted within the nozzle for receiving the combined inflow, each tube having a delivery tip extending into the isolation chamber for emitting a high pressure, high velocity jet spray along a delivery axis in response to receiving the combined inflow.

A method of converting an air/water dental syringe of the type having a syringe body and an autoclavable dental tip and lacking illumination into a converted air/water dental syringe adapted to be used with a disposable dental tip different from the autoclavable dental tip and with illumination capabilities includes using a conversion kit having a retainer body and a self-contained module. The syringe body is attached to a proximal end of the retainer body through a proximal opening for providing air and water. A proximal end is inserted into a distal opening of the retainer body. The self-contained module includes a light-emitting diode (LED), a battery powering the LED, and a switch to turn the LED ON and OFF. Light emitted from the LED provides illumination through a light opening on an outer surface of the retainer body generally towards a distal end of the disposable dental tip.

Systems and methods for mixing an oral care formulation base with one or more oral care additives in-situ. In one aspect, the invention can be a method of making an oral care formulation for consumer use, the method comprising: a) providing a first dose of an oral care formulation base to an oral cavity of a test subject; b) dispensing one or more oral care additives to the oral cavity in accordance with a first dispensing regimen during the performance of step a), the one or more oral care additives mixing with the first dose of the oral care formulation base in-situ within the oral cavity of the test subject; c) obtaining feedback regarding effects experienced by the test subject during the performance of step b); and d) creating the oral care formulation for consumer use based, at least in part, on the feedback of step c).

An oral cleaning system for communicating a status of a handheld oral cleaning device (10) to a docking station (100). The handheld oral cleaning device includes a controller (70) configured to generate a unique charging cycle for each of a plurality of different charging states. The docking station (100) is configured to receive the handheld oral cleaning device, and includes a secondary charging induction coil configured to detect the unique charging cycle for each of the plurality of different charging periods. The docking station further includes a visual indicator (120) configured to indicate, based on the detected charging cycle, one of the plurality of different charging states of the handheld oral cleaning device.

A dental handpiece system includes a dental handpiece for operating a dental burr and providing a stream of water to the dental burr for cooling a tooth being acted upon by the dental burr. The dental handpiece further includes a flush water port for providing a flush water stream that is directed away from the dental burr to allow the dentist to flush a work site in a patient's mouth. The dental handpiece can also include an air outlet for providing a stream of air that is also not directed to the dental burr and that can be used to dry other dental instruments as well as work sites in the patient's mouth.

A water control valve includes a valve body defining a valve body internal cavity, a first air inlet passageway in communication with the valve body internal cavity, a first water outlet passageway in communication with the valve body internal cavity, and a water inlet passageway. The water control valve further includes a valve cartridge removably coupled to the valve body. The valve cartridge is sized to fit at least partially within the valve body internal cavity. The valve cartridge defines a second air inlet passageway and a second water outlet passageway. The first air inlet passageway is aligned with the second air inlet passageway and the first water outlet passageway is aligned with the second water outlet passageway when the valve cartridge is coupled to the valve body.