13 results about "Endodontic files" patented technology

The present invention relates to dentistry, and particularly, to a rotary endodontic finishing file used for root canal treatment. The endodontic finishing file comprises a shank for inserting in an endodontic motor handpiece, and a core of twisted metal braids secured in the shank, the said core being provided with an outer braid made of wire wound over the core. The length of the braid is less than the length of the core. At the braid-free end of the core, a brush of the core braids is formed. The winding of the wire of the outer braid is made in four layers, the winding of the first and third layers is made in the direction from the shank to the brush without a gap between the adjacent coils in each layer, the winding of the second and fourth layers is made in the opposite direction.

The present invention relates to a device for driving an endodontic file head of an endodontic device and for operating a remote pump, the device comprising:a gear for the connection with the endodontic file head;a drive shaft for rotating the gear and for rotating at least one magnet;a first cylindrical element surrounding the drive shaft;a rotatable magnet holding means surrounding the first cylindrical element;at least one magnet fixed in the rotatable magnet holding means;a coil surrounding the rotatable magnet holding means;a second cylindrical element surrounding the coil;a central processing unit;an inner encoder on the central processing unit for measuring the velocity of the drive shaft;a transmitter;an antenna for sending a signal to a remote pump; andat least one sleeve interlinked with the drive shaft for moving the drive shaft by a motorized power handle.

INSTRUMENTED ENDODONTIC FILE FOR DETERMINING ANATOMICAL DATA The present invention relates to a device for endodontic treatment of a root canal (11), comprising: - an instrumented file (20) including a passive zone (22) and an active zone (21), the active zone (21) being configured to provide position data by electromagnetic or optical radiation, - acquisition means (30) including a sensor (31), and configured to acquire position data within a system defined by the root canal (11) and the acquisition means (30), and - a treatment unit (40) connected to the acquisition means (30), and the treatment unit (40) is configured to process the position data of the active zone (21) within the system, in order to determine an anatomical datum of the root canal (11). Abstract figure: Fig. 4

A dental post kit is provided. The dental post kit includes at least one post having a first section and a second section, where the first section has a first opening, and the second section has a second opening covered by a thin shell. An internal central canal extends from the first opening to the second opening. A stopper is mounted on the at least one post and is located between the first section and the second section. At least one endodontic file is included in the kit. The at least one endodontic file is configured to be inserted into the internal central canal through the first opening and to pass through the second opening by puncturing the thin shell covering.

The application particularly relates to an adaptive dental pulp file, comprising: a mounting seat configured to be detachably connected with a rotating end of an electric rotating tool; a gum cleaning shaft comprising a shaft body and a first gum cleaning part made of a flexible material, one end of the shaft body being connected with an end face of one end of the mounting seat, and one end of the first gum cleaning part being connected with the other end of the shaft body; the first gum cleaning part comprising: a cluster of first gum cleaning hairs coaxially arranged with the shaft body; from the direction of the mounting seat to the direction of the first gum cleaning part, the cross-sectional area of the first gum cleaning hairs gradually decreases until the end of the first gum cleaning hairs away from the mounting seat is in a pointed structure; and a guide spring connected with the mounting seat and sleeved on the gum cleaning shaft; the adaptive dental pulp file is configured to rotate at a speed of 8000 RPM to 12000 RPM to facilitate the first gum cleaning hairs to clean the dental pulp in the root canal.

The invention particularly relates to a self-adaptive dental pulp file, which comprises a mounting seat, which is configured to be detachably connected with a rotating end of an electric rotating tool; the glue removing shaft comprises a shaft body part and a first glue removing part made of a flexible material, one end of the shaft body part is connected with the end face of one end of the mounting seat, and one end of the first glue removing part is connected with the other end of the shaft body part; the first glue cleaning part comprises a cluster of first glue cleaning hairs which are coaxially arranged with the shaft body part; from the direction of the mounting seat to the direction of the first glue cleaning part, the cross sectional area of the first glue cleaning hair is gradually reduced until one end, far away from the mounting seat, of the first glue cleaning hair is of a sharp structure; one end of the guide spring is connected with the mounting seat, and the glue cleaning shaft is sleeved with the guide spring; the self-adaptive dental pulp file is configured at the rotating speed of 8000 RPM to 12000 RPM so as to promote the first gutta-percha cleaning hair to clean the gutta-percha in the root canal.

ENDODONTIC FILE FOR HIGH-SPEED ROTATION The invention relates to an endodontic file (1) equipped with a blade (14) having at least one cutting lip (13) which has: - a cutting face (Fs), delimited by the cutting lip (13) and configured to come against tissues to be removed from a root canal when the instrument is driven in a rotation in the direction (R); - a clearance face (Fd), delimited by the cutting lip (13), and opposite to the cutting face (Fs); - the cutting lip (13) having a negative cutting angle (c) and a clearance angle (a) greater than or equal to 0, measured in the direction (R). According to the invention: - a cutting angle (b) is between 95° and 150°, and a ratio between the surface area of ​​the blade (So) and the surface area of ​​a circumscribed circle (Se) of the blade is between 40% and 65%. Abstract figure: Fig. 2

A working length measuring endodontic file system (10) comprises an endodontic file (11) having a stopper (22) moveable along a shaft (12), and a distance measurement circuit (24) which automatically determines a distance from the handle (20) to the stopper (22). The endodontic working length is then determined by subtracting this distance and the thickness of the stopper (22) from the length of the shaft (12). The handle-to-stopper distance may be measured using any known approach, such radiated signal rangefinding (e.g., laser, lidar, radar, or ultrasonic); inductive distance sensing; linear magnetic encoding; mechanical linkage coupled to, e.g., rheostat or measuring wheel encoder; resistance measurement; and the like. In one aspect, a camera (25) and image recognition software calculate the handle-to-stopper distance.

In some embodiments, the current invention relates to a method and / or system for using a standard dental handpiece for endodontic cleaning. For example, a dental adapter is disclosed having a fitting for a standard dental handpiece, a torque limiter and / or a mount for an endodontic file. For example, the adapter may be single use and / or multi use. In some embodiments, the mount includes the torque limiter. For example, an endodontic file may be connected to the mount with a friction fitting that allows rotation of the file with respect to the mount at high torque. Optionally the mount is positioned eccentrically with respect to the fitting.

The invention relates to an endodontic file set for root canal preparation comprising at least two files (1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8) each with a tool (10.1, 10.2, 10.3, 10.4, 10.5, 10.6, 10.7, 10.8) extending in a longitudinal direction (12) and a shaft (2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8) receiving the tool and formed for inserting the file into a receptacle of a dental instrument. - wherein all tools of the file set have a conical working part (15) of any type with at least one cutting edge (21) and a different determining diameter (d3), - wherein the determining diameter of the tools is in a range of 0.06 to 0.564 mm and - wherein the amount of a difference in actual bending stiffness and / or the amount of a difference in actual torsional strength between at least individual tools of the file set is less than the amount of a difference in maximum bending stiffness and / or minimum torsional strength for these tools, as determined from the standard specifications, wherein, to adjust the actual bending stiffness and / or the actual torsional stiffness of each tool, its material, its heat treatment during manufacture and / or its cross-section are adapted with respect to a cross-sectional shape and / or cross-sectional area, and wherein the tools of the file set differ with respect to at least two of these three adjustment parameters.

Endodontic lubricant compositions are disclosed for use in RCT in vivo improve endodontic file longevity. Methods of using the compositions, kits containing the compositions, and manufacturing processes to create the compositions are also disclosed.