The present invention relates to a fluid based tooth cleaning system (10) comprising a holdable body (20), a fluid delivery unit (30), at least one sensor (40) and a control unit (50). The holdable body is configured to be coupled to a head (60). The fluid delivery unit (30) is configured to be coupled to a nozzle (80) configured to emit fluid, and the nozzle (80) is comprised within the head (60). The at least one sensor (40) is configured to provide information, including velocity information, relating to the head (60) with respect to a user's teeth. The at least one sensor (40) is configured to provide the information to the control unit (50). The control unit (50) is configured utilize the information to enable the fluid delivery unit (30) to emit fluid from the nozzle (80) onto the user's teeth.

The invention relates to an oral cleaning system (100) for cleaning teeth with a combination of brushing and interdental liquid cleaning. The oral cleaning system (100) comprises a cleaning head (200) as well as a support unit (300) having a fluid reservoir (350) for containing a fluid (110). The cleaning head (200) comprises a brush (240) for brushing the teeth, and an orifice (250) for emitting a part of the fluid (110) for interdental liquid cleaning. A first fluid channel (210) guides the fluid from the fluid reservoir to a hydraulic motor (230) driving the brush (240), and to the orifice (250). The cleaning head (200) further comprises a second fluid channel (220) configured for transporting at least a part of the fluid (110) back from the hydraulic motor (230) to the fluid reservoir (350) of the support unit (300).

An interdental brush device comprising an interdental brush including a working part and a connector; a delivery component including a guide head, a sliding mechanism including a sliding block and an interdental brush connecting mechanism, and a housing; the interdental brush comprises a working part with fiber or a protrusion and a connector; the interdental brush is positioned within a bended tube, and the connector of the interdental brush is detachably coupled to the interdental brush connecting mechanism such that lateral movement of the sliding mechanism drives the working part of the interdental brush to slide within the bended tube, the protrusion is made of elastic polymer material, and the connector and the protrusion are formed into a whole; and the sliding mechanism is configured to make the working part of the interdental brush extend from the outlet of the bended tube at the end of the guide head.

An interdental brush device comprising an interdental brush including a working part and a connector; a delivery component including a guide head, a sliding mechanism including a sliding block and an interdental brush connecting mechanism, and a housing; the interdental brush comprises a working part with fiber or a protrusion and a connector; the interdental brush is positioned within a bended tube, and the connector of the interdental brush is detachably coupled to the interdental brush connecting mechanism such that lateral movement of the sliding mechanism drives the working part of the interdental brush to slide within the bended tube, the protrusion is made of elastic polymer material, and the connector and the protrusion are formed into a whole; and the sliding mechanism is configured to make the working part of the interdental brush extend from the outlet of the bended tube at the end of the guide head.

A device for cleaning interdental spaces includes a housing that forms a handle. The device also includes a brush holder for holding an interdental brush, and a drive device which is configured to generate rotational and translational movement of the brush holder and/or of an interdental brush held in the brush holder.

A retractable built-in interdental brush includes a built-in interdental brush, a retractable mechanism, and a handle. The built-in interdental brush is connected to the retractable mechanism. By driving the retractable mechanism, the built-in interdental brush can be driven to extend from the handle to clean a gap between teeth. After use, the built-in interdental brush retracts into an accommodation space of the handle through the retractable mechanism, so that the handle can form a compact instrument box, which is very convenient to carry. An end surface of a delivery device of the built-in interdental brush is an inclined surface and is at an angle β to an axial direction of the retractable built-in interdental brush is, where the angle β is less than 90°.

A retractable built-in interdental brush includes a built-in interdental brush, a retractable mechanism, and a handle. The built-in interdental brush is connected to the retractable mechanism. By driving the retractable mechanism, the built-in interdental brush can be driven to extend from the handle to clean a gap between teeth. After use, the built-in interdental brush retracts into an accommodation space of the handle through the retractable mechanism, so that the handle can form a compact instrument box, which is very convenient to carry. An end surface of a delivery device of the built-in interdental brush is an inclined surface and is at an angle β to an axial direction of the retractable built-in interdental brush is, where the angle β is less than 90°.

An interdental cleaner has a gripping portion (3) and a cleaning portion (4) formed by an elongate body made from a thermoplastic material. The cleaning portion (4) has a coating made of a self-adhesive, heat-vulcanized rubber material forming peripheral, flexible brush members (6).

Some embodiments of the present invention provide a novel, twisted-in-wire type interproximal brush equipped with yarn strands. According to some embodiments, the yarn strands may be formed of nylon filament having compression memory characteristics.

Provided is an interdental cleaning tool that can be smoothly inserted between back teeth. An interdental cleaning tool according to the present invention includes: a cleaning tool body that is made of a synthetic resin, and includes a grip portion that is capable of being gripped with fingers of a user and a shaft portion that extends in one direction from the grip portion; and a cleaning portion configured to clean between teeth, covering a leading end of the shaft portion, and made of an elastomer, wherein (angle b)/(angle a) is 0.82 or more, where the angle a is a rotational angle (degrees) when a torque value A is measured, the torque value A being a maximum torque value (N.Math.cm) when the grip portion is rotated at a rotational speed of 10 rpm about a position located 6 mm away from a leading end of the cleaning portion, and the angle b is a rotational angle (degrees) when a torque value B is measured, the torque value B being a maximum torque value (N.Math.cm) when the grip portion is rotated at a rotational speed of 10 rpm about a position located 10 mm away from the leading end of the cleaning portion.