An ultrasonic back suction-integrated tooth cleaner includes a tooth cleaner host and a tooth cleaner handle. The tooth cleaner host includes a pipeline structure inside. Head ends of a water supply pipeline and a back suction pipeline both extend out of a housing of the tooth cleaner host and are connected to a tail end of the tooth cleaner handle. In the present invention, a back suction pipeline is added to an existing tooth cleaner host, so that the host is adapted to an integral tooth cleaner handle with a back suction function. A flow rate in the water supply pipeline is regulated by using an electromagnetic valve, so that a requirement for accurately controlling a water output volume is satisfied. The tooth cleaner handle is ingeniously designed with a back suction pipeline inside the existing ultrasonic handle, so that an aerosol is effectively controlled during ultrasonic tooth cleaning.

The present invention relates to a dental device for shaping and simultaneous flushing and suction of a tooth root canal, a head of a dental device for shaping and simultaneous flushing and suction a tooth root canal by shaping the tooth root canal and a hollow endodontic file for shaping and simultaneous flushing and suction a tooth root canal by shaping the tooth root canal.

The present disclosure relates to a pumping assembly, a piston pump and an oral irrigator. The pumping assembly includes: a cylinder, cavities providing therein with at least two cavities with different inner diameters; a piston mechanism successively extending through the at least two cavities, the piston mechanism being in slidable cooperation with walls of the cavities, and a gap being formed between a sidewall of part of the piston mechanism and the walls of the cavities; and a drive mechanism connected to the piston mechanism, the drive mechanism being configured to drive the piston mechanism to move.

The present disclosure relates to a pumping assembly, a piston pump and an oral irrigator. The pumping assembly includes: a cylinder, cavities providing therein with at least two cavities with different inner diameters; a piston mechanism successively extending through the at least two cavities, the piston mechanism being in slidable cooperation with walls of the cavities, and a gap being formed between a sidewall of part of the piston mechanism and the walls of the cavities; and a drive mechanism connected to the piston mechanism, the drive mechanism being configured to drive the piston mechanism to move.

A dental mouthpiece is provided that may be attached to a high-suction dental adapter for the purpose of assisting the dental staff during dental procedures through chair-side, hands-free suction, and isolation. Such a mouthpiece may include a main body portion, a cheek retractor portion, and a suction connector portion. In some embodiments, the main body portion, cheek retractor portion, and suction connector portion (and sub-portions thereof) may be molded in one piece, preferably by injection molding. In an exemplary embodiment, the mouthpiece may be made of a material that is flexible, translucent, conducive to injection molding, high heat-resistant, and autoclavable. Such a material may include silicone. Because the mouthpiece may be made of a high heat-resistant and autoclavable material, such a mouthpiece may be reusable.

A visual tooth cleaning, grinding and polishing instrument includes a host, an oral observation instrument and a cleaning and polishing tool. The host can drive the cleaning and polishing tool and supply a power source and a control system for an illuminating system, an observation system and the oral observation instrument. A picture shot by a camera of the observation system can be transmitted to a display of the observation system in time, so as to achieve the purposes of cleaning the teeth while observing a process of cleaning the dental calculus, dental plaque and pigmentation on the surface of the teeth with the cleaning and polishing tool and the cleaning effect instantly on a mobile phone, thereby effectively cleaning, grinding and polishing the teeth. A flusher or an electric toothbrush head or other interdental cleaning tools may also be mounted on the host or the oral observation instrument.

The composition for bone regeneration, comprises a) a first phase (3) comprising a plurality of cross-linked hydrogel chunks (1) having a mean diameter of less than 1000 μm and incorporating an amount of mineral particles (2); and b) a second phase (4) comprising a physiologically-compatible aqueous liquid acting as a carrier for the chunks; the chunks being embedded in the second phase (4). The mineral particles (2) have a mean diameter of less than 10 μm and the amount of the mineral particles (2) is less than 20 weight-% of the first phase.

The composition for bone regeneration, comprises a) a first phase (3) comprising a plurality of cross-linked hydrogel chunks (1) having a mean diameter of less than 1000 μm and incorporating an amount of mineral particles (2); and b) a second phase (4) comprising a physiologically-compatible aqueous liquid acting as a carrier for the chunks; the chunks being embedded in the second phase (4). The mineral particles (2) have a mean diameter of less than 10 μm and the amount of the mineral particles (2) is less than 20 weight-% of the first phase.

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.

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.