366 results about "Root canal" patented technology

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.

A method treating a root canal in a tooth by introducing into the pulp chamber of a tooth and pulsing a laser light into the fluid reservoir so as to disintegrate pulp within the root canal without generation of any significant heat in said liquid fluid so as to avoid elevating the temperature of any of the dentin, tooth, or other adjacent tissue more than about 5° C.

An endodontic microcannula system for evacuation of root canal contents from a root canal of a patient. The system includes a microcannula for insertion into the root canal, a handpiece for vibrating the microcannula while it is disposed within the root canal, and an irrigation fluid reservoir for supplying irrigation fluid to the root canal, an a vacuum source for drawing the fluid and root canal debris into the microcannula and out of the root canal.

The utility model provides a tooth model kit and a multi-layer root canal therapy practice model. A hard tissue part of a teaching tooth model is made of a colorless transparent printing material, and a soft tissue part of the teaching tooth model is made of a colored printing material. The hard tissue part of the endodontotomy practice model is made of a non-transparent 3D printing material, and the dental pulp part is made of a colored printing material with the color different from that of the hard tissue part. The dental crown part of the root canal therapy practice model is made of a non-transparent printing material, the dental root part is made of a colorless transparent printing material, and the dental pulp part is made of a colorless transparent adhesive body ground printing material. A dental crown part of the multi-layer root canal therapy practice model is made of a non-transparent printing material, a tooth root part is made of a colorless transparent printing material, a semitransparent colored layer with a preset thickness is arranged at the position, close to a dental pulp part, of the tooth root part, and the dental pulp part is made of a colorless transparent adhesive body ground printing material. The tooth model kit provided by the utility model is higher in simulation degree on teeth, and the simulation result is displayed more clearly.

According to one embodiment of the present invention, the present invention can provide a dental model for dental practice, the dental model comprising an upper jaw part and a lower jaw part to which dental models are detachably coupled, the dental models comprising: a single tooth forming a tooth head and a tooth root, a coupling guide protrusion for preventing detachment and guiding the coupling direction when coupled to the tooth fixing block side is formed on the outer surface of the tooth root, and a dental nerve is formed in the interior of the tooth root; a tooth fixing block forming an internal space detachably coupled to the root of the single tooth, the internal space being filled with a conductive adhesive for measuring the length of the root canal; a gingival part in which a plurality of the tooth fixing blocks are assembled in accordance with a tooth arrangement; and a chin strap to which the gingival part and the tooth fixing block are fixed, the chin strap being coupled to the temporomandibular joint on either side of the maxillary part or the mandibular part.

The invention discloses a root canal isthmus 3D printing research model construction method and device, a medium and a product, and relates to the technical field of root canal isthmus printing.The method comprises the steps that root canal original data and prepared root canal data are obtained; the root canal original data are screened various typical form data containing root canal isthmus; obtaining expanded main root canal diameter data according to the prepared root canal data, extracting original tooth root three-dimensional surface data according to the root canal original data, and combining the original tooth root three-dimensional surface data with the expanded main root canal diameter data to obtain a root canal isthmus 3D printing research model. The root canal original data screened out in the application contain all possibilities of the root canal isthmus, and compared with a modular stacking mode in the prior art, a mode of carrying out layer-by-layer modeling by utilizing the root canal original data obtained by scanning in the application can more accurately simulate the shape and size of the real root canal isthmus.

The invention relates to the technical field of digital medical treatment, and discloses a dental three-dimensional identification and model generation method based on CBCT and deep learning, and the method comprises the steps: carrying out the preprocessing of obtained CBCT image data; the preprocessed CBCT image data is segmented, and the segmentation step comprises the substeps that a tooth three-dimensional model, an alveolar bone three-dimensional model and a mandibular neural tube three-dimensional model are obtained by adopting a two-stage cascade deep learning network; based on the tooth three-dimensional model and the alveolar bone three-dimensional model, obtaining a periodontal membrane three-dimensional model through geometric and Boolean operation; a tooth root area in the tooth three-dimensional model is positioned, and a self-adaptive threshold method is adopted for CBCT image data corresponding to the tooth root area, and a root canal three-dimensional model is recognized and generated; based on at least one of the obtained three-dimensional models, a personalized clinical application model is generated, high-precision automatic segmentation of the dental complex anatomical structure is achieved, and a reliable digital model basis is provided for personalized precision medical treatment.

Apparatus and methods for endodontic treatment of teeth provide effective cleaning of organic material (such as pulp and diseased tissue) from the root canal system. In an embodiment, a compressor system generates high pressure liquid (e.g., water) that flows through an orifice to produce a high-velocity collimated jet of liquid. The high-velocity jet is directed toward a surface of a tooth, for example, an exposed dentinal surface, and impingement of the jet onto the surface generates an acoustic wave that propagates throughout the tooth. The acoustic wave effectively detaches organic material from dentinal surfaces and tubules. The detached organic material is flushed from the root canal system by the liquid jet and / or by additional irrigation.

The present disclosure relates to a method, device, equipment and medium for determining operation planning data of teeth. It includes: obtaining a three-dimensional scanning image of a target oral cavity and coordinate data of tooth feature points in the target oral cavity; based on the three-dimensional scanning image, performing pulp opening planning and root canal planning on the tooth to be repaired in the target oral cavity, and obtaining pulp opening planning image data and root canal planning image data of the tooth to be repaired; determining a first mapping relationship between tooth feature points and tooth pixel points according to the coordinate data of tooth feature points and the coordinate data of tooth pixel points contained in the three-dimensional scanning image; obtaining operation planning data of the tooth to be repaired based on the first mapping relationship, pulp opening planning image data and root canal planning image data. Thus, the operation planning data of the tooth to be repaired is determined by using the data at the image level of the target oral cavity and the coordinates of the actual feature points on the tooth, so as to guide the operation tool to accurately remove the infected part of the root canal in the tooth to be repaired based on the operation planning data.

Drilling an infected tooth root canal can leave some infected material behind. Heat delivered from within the tooth can be used to disrupt biofilm, disinfect, and / or seal. A cone-shaped flexible device can be inserted into or toward the root canal. The device can include a heating transducer, such as a DC resistive heating element, or an RF heating transducer that can generate heat in a dielectric or semiconductor or polymer active substrate, with a locus of the heat generation controllable by adjusting a frequency of an electrical input signal driving the heating transducer. Thermally conductive fluid can be introduced into the root canal to help distribute heat from the heating transducer to nearby portions of the root canal for heat disinfecting treatment of infected tissue. The active substrate can be heat-softenable, such as to help seal a target region of the tooth.

The invention discloses a method for post-root canal therapy resin closure retreatment in a medullary cavity, and relates to the technical field of root canal therapy, and the method comprises the following steps: S1, pre-operation sampling; s2, removing the restoration and other materials: removing the restoration on the surface of the dental crown and the resin sealing material in the medullary cavity by using a material removal technology and a tool, wherein the material removal technology and the tool comprise a grinding device with a sensor or a laser technology; s3, re-cleaning and disinfecting the root canal: after cleaning the root canal, using a root canal disinfection drug added with nano-silver particles, and mixing the nano-silver particles with traditional disinfection drugs such as calcium hydroxide paste; s4, filling and re-treating: blending the color of the resin by using a computer color matching technology before filling the medullary cavity; the system further comprises an intelligent design monitoring platform. According to the invention, a grinding device with a sensor or a laser technology is adopted, so that the damage to tooth tissues, especially key parts, is remarkably reduced, and the treatment safety and accuracy are improved.

A root canal cleaning device according to one embodiment of the present invention comprises: an acoustic pressure generating unit that operates in response to the electric input; a handpiece housing that accommodates the acoustic pressure generating unit; a coolant passage formed inside the handpiece housing; a coolant inlet that communicates with the coolant passage formed inside the handpiece housing; and a cleaning solution nozzle formed in the handpiece housing, wherein an ultrasonic acoustic pressure applied to a coolant is transmitted to a cleaning solution by the acoustic pressure generating unit, and vapor bubbles are generated in the cleaning solution by the transmitted ultrasonic acoustic pressure, and target contaminants inside the tooth including the root canal is removed by the action of the vapor bubbles and the cleaning solution on a tooth being treated. The cleaning solution includes a degassed liquid.

1. Name of the product in this design: Root canal measuring instrument (for oral and maxillofacial surgery). 2. Purpose of this design: It is used in a root canal measuring instrument, which is a measuring instrument for oral and maxillofacial surgery. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present invention provides a three-dimensional positioning and guiding device for a root canal treatment pulp opening passage based on laser, comprising a tooth surface positioning component and a pulp opening guiding component, wherein the tooth surface positioning component is arranged on the dentition, the pulp opening guiding component is arranged on the tooth surface positioning component, the tooth surface positioning component comprises a positioning housing, an inner clamping ring and an outer clamping ring, the positioning housing is provided with a positioning guide hole, the outer clamping ring is arranged at the positioning guide hole of the positioning housing, the inner clamping ring is movably connected with the outer clamping ring, and the pulp opening guiding component comprises an X-axis support frame, a Y-axis support frame, an X-axis laser emitter and a Y-axis laser emitter; the device indicates the pulp opening passage through laser, the effect is intuitive and visible, the operation is controllable, and the operation is simple and easy to master. The device can guide more accurate pulp opening, less tooth hard tissue is removed, and the resistance and functionality of the affected tooth are preserved to the greatest extent, thereby extending the service life of the tooth in the oral cavity.

Root Canal Irrigation Pressure Control and Flow Monitoring Device

1. The name of the design product: root canal channel cleaner. 2. The use of the design product: clean the impurities and foreign matter in the root canal during root canal treatment. 3. The design points of the design product: the shape of the product shown in the views in the drawings. 4. The picture or photo that best indicates the design points: perspective view.

There is provided a kit for performing socket shield technique, and methods for using the kit, wherein the kit may include a wheel bur, having a first working surface disc and a second working surface disc configured to smoothen and cut hard tissues of a tooth; one or more trephine burs with stoppers configured to cut a root canal to create a first tooth fragment and a second tooth fragment, wherein each stopper is compatible with each of the one or more trephine burs; a root fragment remover configured to extract the first tooth fragment and stabilize the second tooth fragment; a split end elevator having a v-shaped notch tip configured to remove the first tooth fragment; a cylindrical bur to control the thickness of the second root fragment; and a round bur configured to separate the second root fragment from unwanted fragments.

The present disclosure relates to a dynamic self-adaptive reciprocal motor movement optimized for root canal treatment with endodontic files. A smart motor movement is configured to continuously self-adapt its settings in a smooth manner without sudden drastic motor movement changes. This can be obtained by continuously changing motor parameters in response to instantaneous torque measurements, and also taking into consideration the torque evolution instead of merely reacting to the instantaneous torque imposed on the file.

The utility model discloses a root canal file handle assembling device which comprises a bottom plate, a clamping mechanism is arranged on one side of the top of the bottom plate, a pushing mechanism is arranged on the other side of the top of the bottom plate, and U-shaped grooves are formed in the two sides of the front face and the two sides of the back face of the bottom plate. The clamping mechanism comprises a clamping seat, a trapezoidal block, a first air cylinder, clamping blocks, a roller, an arc-shaped groove, a mounting seat, a mounting groove, a bolt A and a bolt B. The root canal file body is arranged between the two clamping blocks, then the first air cylinder is started, the first air cylinder pushes the trapezoidal block to slide in the clamping seat, and then the trapezoidal block drives the roller to rotate through the slope design of the trapezoidal block; and meanwhile, the clamping blocks rotate, and then the two clamping blocks limit the root canal file body through the arc-shaped grooves, so that the root canal file body can be effectively and conveniently clamped quickly.

The utility model relates to a paste filling needle which comprises a seat body, a stainless steel needle connected with the seat body and a filling piece which is filled at the joint of the seat body and the stainless steel needle in a primary mode, an inner cavity and a channel are dug in the seat body, the inner cavity is communicated with the channel, and the channel penetrates through the seat body. The stainless steel needle partially extends into the channel and completely covers the inner surface of the whole channel, the filling piece is arranged at the tail end of the upper portion of the channel, and the outer diameter of the stainless steel needle is 0.23 mm. According to the paste filling needle provided by the utility model, a gap is formed between the paste filling needle and the inner wall of a root canal hole, so that the internal pressure of the root canal hole can be released in time in the paste injection process, the risk that the paste is overfilled outside a root tip due to overhigh pressure is avoided, and the treatment safety is improved.

ADVANCED ENDODONTIC APPARATUS ENHANCING ROOT CANAL TREATMENT EFFICIENCY

The invention discloses a root canal oscillation negative pressure flushing system and method, and belongs to the technical field of medical instruments. According to the technical scheme, the negative-pressure washing system for root canal oscillation washing comprises a main machine module, a handle module, a negative-pressure washing needle head and a sewage collecting module; the negative pressure flushing needle head is of a dual-channel coaxial structure of a liquid supply channel and a negative pressure back suction channel, the negative pressure flushing needle head is rigidly connected with the handle module, and a vibration conduction assembly is arranged in the handle module; through the integrated design and the dual-channel coaxial structure, the operation process is simplified, the leakage risk is reduced, and it is ensured that liquid supply and negative pressure are synchronous; the liquid medicine is activated in combination with the vibration conduction assembly, the cleaning efficiency is improved, and the device has the advantages of being convenient to operate, reducing leakage risks, ensuring synchronization of liquid supply and negative pressure and improving the cleaning efficiency.

The utility model discloses an emulational resin tooth matched with pulp opening treatment in oral skill examination, which comprises an emulational resin tooth body, the emulational resin tooth body is provided with a plurality of dental pulp walls and a root canal, a dental pulp chamber is enclosed by the plurality of dental pulp walls, the surface of each inner wall of the dental pulp walls is provided with a contour coating, and the root canal is arranged on the outer wall of the dental pulp chamber. The root canal is filled with fluid, and the mouth of the root canal is closed. When the simulated resin tooth is used for an examination, a review teacher can quickly and accurately judge whether an examinee uncovers and uncovers the top wall of the dental pulp or not, check the abrasion conditions of other walls of the dental pulp and determine whether the bottom wall of the dental pulp is perforated or not by directly observing the outline coating; in addition, whether the examinee finds the position of each root canal opening or not can be determined by checking whether fluid overflows from each root canal opening or not, the simulation resin tooth can assist a review teacher to objectively and accurately evaluate the practical operation ability of the examinee, the review difficulty and blindness of the review teacher are reduced, and the review accuracy and efficiency are effectively improved.

1. The name of the design product: root canal measuring instrument. 2. The use of the design product: for stomatological medical instrument, dental root canal measuring instrument. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

A method for determining the optimum relative position of at least one sensor and / or at least one imaging source of an imaging device for at least one intraoral imaging, and for the non-overlapping imaging of at least two tooth root canals. The disclosure also relates to a sensor holder (1) for intraoral imaging including at least one biting device (2) that is insertable into the mouth of a patient, at least one holding device (3) at least indirectly engaged with the biting device (2) for fixing at least one sensor, and at least one centering device (4) for aligning at least one imaging device. The centering device (4) is at least indirectly in operative connection with the biting device (2) via at least one centering device holding portion (5).

The utility model relates to the technical field of deciduous tooth root canal treatment, in particular to a flushing auxiliary instrument for deciduous tooth root canal treatment, which comprises an injection needle body, a cylinder is arranged at the mounting end of the injection needle body, external threads are arranged on the outer surface of the cylinder, and a plug is arranged in the cylinder. The interior of the plug is of a hollow structure and is installed on the inner wall of the injection needle body in a communicated mode, the injection end of the injection needle body is arranged to be an oval pointed end, a plurality of flushing holes are evenly formed in the outer side wall of the oval pointed end, and the installation end of the injection needle body is installed on an externally-connected injector body. According to the utility model, the resistance mood of children can be avoided, a threaded retention syringe or a pluggable retention syringe can be selected according to clinical practice, and meanwhile, the bending angle of the syringe needle body can be adjusted according to different orientations of the root canals of the deciduous molar teeth for pre-bending, so that the flushing efficiency of the root canals in different orientations under non-direct vision is improved.

1. The name of the product of this design: gutta-percha filling pen. 2. Purpose of the product of this design: Used for filling the root canal of teeth with gutta-percha during dental treatment. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design.

The invention relates to the technical field of root canal treatment, in particular to a method, device and control equipment for controlling a root canal file based on dynamic torque, in the process that the root canal file is inserted into a root canal part and makes contact with dentin, real-time torque data generated by resistance in the process that the root canal file makes contact with the dentin are collected, and the real-time torque data are obtained; the method comprises the following steps: acquiring a real-time torque of a root canal part, performing target torque analysis matched with the real-time torque, so that the analyzed target torque meets the cutting requirement of the current dentin of the root canal part, and then controlling a root canal file to cut the dentin based on the analyzed target torque, so that the diameter change of the root canal file adapts to a root canal anatomical structure. The control accuracy of the torque of the root canal file is improved, so that the cutting accuracy, efficiency and safety of dentin are improved, the efficiency, accuracy and safety of root canal treatment are improved, and the user experience is improved. Meanwhile, the damage conditions such as bending and breakage of the root canal file can be reduced, and the service life of the root canal file is prolonged.

The utility model provides a root canal file for animal tooth treatment, and belongs to the technical field of dental medical equipment. The file comprises a file body, a fixing piece and a file handle, one end of the file body is an operating part, and the other end is a mounting end; the end part of the operation part is of a spiral structure; a first bending angle is formed between the operating part and the mounting end; the size of the first bending angle is between 80 degrees and 135 degrees; a clamping part is arranged at one end of the file handle; the fixing piece is mounted on the clamping part; the mounting end is inserted and mounted in the clamping part; an included angle is formed between the extending direction of the operating part and the axis direction of the file handle. The bending design of the file body is particularly suitable for tooth treatment of animals, meanwhile, the file handle fixes and clamps the file bodies of different sizes through the fixing piece, medical staff can conveniently and rapidly replace the file bodies of different sizes according to actual use, and the dental file has good universality.

The utility model relates to the technical field of medical instruments, in particular to a root canal file holder. Comprising a handle end and a fixing assembly, the fixing assembly comprises a fixing sleeve, a movable rod, a fixed clamping sleeve, a movable clamping sleeve, a limiting spring, a shifting ring and a fixing piece, the fixing sleeve is fixedly connected with the handle end, the movable rod is slidably connected with the fixing sleeve and the handle end and penetrates through the fixing sleeve and a cavity, and the fixed clamping sleeve is fixedly connected with the fixing sleeve. The movable clamping sleeve is fixedly connected with the movable rod and located on the outer side wall of the movable rod, the shifting ring is movably connected with the handle end and located in the through groove, the shifting ring is further fixedly connected with the movable rod, the limiting spring is fixedly arranged in the cavity and fixedly connected with the shifting ring, and the fixing piece is arranged on the outer side wall of the handle end and movably connected with the shifting ring. Through the arrangement of the structure, the root canal file can be stably fixed, shaking is prevented, and treatment of the oral cavity of a patient is facilitated.