An apparatus for endodontic treatment, comprising: a nozzle connected to a fluid source comprising: a tip small enough to be inserted into a pulp chamber of a tooth; an inner geometry which forms a flow parameters including non-axial flow direction of nozzle fluid flowing through the inner geometry such that discharge fluid discharged from the inner geometry increase rotation of root canal fluid within a root canal sufficiently to remove tissue from the root canal.

An oral irrigator has a removable reservoir defining a reservoir cavity, a base unit housing a motor and a pump, and a handle for directing fluid flow from the pump removably connected to the base unit and fluidly coupled to the pump by a hose. The handle has a housing defining a slot formed in an outer wall of the housing. The slot is bounded by two opposing walls spaced apart from each other and a transverse wall at a terminal interior end of the opposing walls. The outer wall of the housing is open to the slot at lateral sides of the two opposing walls and at a base end of the opposing walls opposite the transverse wall.

An apparatus for endodontic treatment, comprising: a nozzle connected to a fluid source comprising: a tip small enough to be inserted into a pulp chamber of a tooth; an inner geometry which forms a flow parameters including non-axial flow direction of nozzle fluid flowing through the inner geometry such that discharge fluid discharged from the inner geometry increase rotation of root canal fluid within a root canal sufficiently to remove tissue from the root canal.

An oral care system that provides a beneficial effect to an oral cavity of a mammal by using a liquid effective for providing the beneficial effect, where the system includes means for directing the liquid onto a plurality of surfaces of the oral cavity, means for providing the liquid to the means for directing the liquid onto the surfaces of the oral cavity, means for providing reciprocation of the liquid over the plurality of surfaces under conditions effective to provide the beneficial effect; and a reservoir for containing the liquid.

An oral irrigator system having an ergonomic casing with a pliable nozzle assembly, and coupled to a detachable and refillable fluid reservoir. The ergonomic casing contains a power source and a pump mechanism. The detachable nozzle head delivers a pulsating jet of fluid with adjustable speed into the oropharyngeal cavity. When the system is turned on, the rechargeable battery activates the diaphragm pump to draw fluid from the reservoir using a fluid pipe and delivers the fluid to the tip of the nozzle head.

An apparatus for cleaning the oral cavity comprises: a body including insertion slots into which the teeth of a user can be inserted, a plurality of injection holes and a plurality of aspiration holes formed on the inner wall of the insertion slots; a feeding tube for supplying cleaning liquid to the plurality of injection holes; a discharge tube through which the cleaning liquid is externally discharged via the plurality of aspiration holes; and a switching member for switching the direction of injection and the direction of aspiration of the cleaning liquid, wherein the body includes a first inner space which communicates with the plurality of injection holes, and a second inner space which communicates with the plurality of aspiration holes.

An oral care system includes a fluid reservoir, a check intake valve, and a pump configured to cause fluid to be provided from fluid reservoir to an oral insert of the oral care system via the check intake valve. The fluid reservoir includes one or more fluid flow disrupters.

An oral care system includes a fluid reservoir, a check intake valve, and a pump configured to cause fluid to be provided from fluid reservoir to an oral insert of the oral care system via the check intake valve. The fluid reservoir includes one or more fluid flow disrupters.

Systems and methods for using a liquid jet apparatus for dental treatments are disclosed. In one implementation, the liquid jet apparatus may include a handpiece configured to deliver a high velocity liquid jet to a desired location in the mouth of a patient. The handpiece may include a positioning member having a channel through or along which the jet can propagate. The positioning member may have a distal end portion configured to be at least partially disposed in a pulp cavity, canal space, or opening in the tooth under treatment. During operation, the jet may impact an impingement surface of the distal end portion of the positioning member and be deflected as a spray through one or more openings in the distal end portion. The liquid jet apparatus may be used for root canal treatments.

Systems and methods for using a liquid jet apparatus for dental treatments are disclosed. In one implementation, the liquid jet apparatus may include a handpiece configured to deliver a high velocity liquid jet to a desired location in the mouth of a patient. The handpiece may include a positioning member having a channel through or along which the jet can propagate. The positioning member may have a distal end portion configured to be at least partially disposed in a pulp cavity, canal space, or opening in the tooth under treatment. During operation, the jet may impact an impingement surface of the distal end portion of the positioning member and be deflected as a spray through one or more openings in the distal end portion. The liquid jet apparatus may be used for root canal treatments.