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.

A device for dispensing a dental material includes a nozzle head, a hand piece and a locking mechanism for locking the nozzle head and the hand piece. The locking mechanism includes a snap connection and a screw connection. The locking mechanism is operable between a locked position in which the snap connection is engaged for retaining the nozzle head and the hand piece with each other and in which the screw connection is disengaged; and a secured position in which the snap connection is disengaged and in which the screw connection is engaged for retaining the nozzle head and the hand piece with each other; and a released position in which the snap connection and the screw connection are disengaged.

A pre-charged prophy angle having a (a) housing that includes a paste chamber, a rotatable head, a drive shaft, and a tube defining in part the paste chamber, the housing and paste chamber configured such that paste within the paste chamber can be dispensed without contacting the drive shaft; (b) a cup secured to the rotatable head, and (c) a paste dispensing assembly having a plunger movably secured to a push rod configured to reciprocally move linearly within the housing, the plunger including a clip for gripping the push rod such that linear movement of the push rod in a first direction causes the plunger to move in the first direction, while the clip precludes movement of the plunger in a second direction when the push rod in directed in the second direction.

A quick stop drilling tool for use with a medical or dental treatment device includes a drilling tool having a body extending between a connection end and a working end and having a longitudinal extension along a longitudinal axis of the drilling tool. The drilling tool has a hollow outer shell in which a probe is held that can be moved along the longitudinal axis so that a part of the probe can be moved out of the shell through an opening. The probe is designed as an elongated pin, and its first end facing the connection end is held in the interior of the hollow outer shell. An electromagnetic sensor for detecting relative movement between the shell and the probe is arranged along the longitudinal extension of the body. The drilling tool has a channel for a treatment fluid extending along the longitudinal axis.

A dental treatment system can include a console, a tooth coupler, and an interface member that provides at least one of fluidic, electrical, mechanical, and data communication between the tooth coupler and the console. The tooth coupler (which may comprise a handpiece or a treatment cap) can act as a working end of the system to administer a suitable treatment procedure, such as a cleaning procedure, an obturation procedure, a restoration procedure, etc. The tooth coupler can removably engage the interface member such that the clinician can easily engage and disengage the tooth coupler and interface member.

A tool for interproximal reduction includes a handpiece and a substantially solid disk-shaped member. The hand tool has a motor coupled to a coupling member. The handpiece is for creating oscillating motion in an oscillation range of 90 degrees or less. The disk-shaped member has a front face and a rear face and defines two or more segments that are different from one another. Each segment has different properties comprising one or more of perforations, cutting surfaces, and abrasives. The disk-shaped member has a centrally disposed aperture for coupling to the handpiece with the coupling member. The properties only partially cover one or more of the front or rear face of the disk. The handpiece is configured to permit a user to position their fingers directly adjacent the dish-shaped member during operation of the handpiece.

A system for producing a powder-gas jet for performing a dental treatment, wherein the system is configured for being connected to a dentist chair by a connection, wherein the connection of the system to the dentist chair allows the system to be fed by a pressurized gas flow, the system comprising a compressed gas circuit configured to direct the pressurized gas flow into a powder-gas-mixing chamber to form a gas-powder mixture, the system being wherein the compressed gas circuit comprises at least a pressure regulation device having an inlet and an outlet, the regulation device being configured to provide the pressurized gas flow with a pressure at its outlet that is independent of the pressure of the gas flow at its inlet, when it is fed by the pressurized gas flow.