32 results about "Endodontic therapy" patented technology

Examples of apparatus, methods, and compositions for endodontic treatments are described. The apparatus can include a fluid platform configured to substantially retain fluid in a tooth chamber during treatment. The fluid platform can help maintain fluid circulation in the tooth chamber as fluid flows into and out of the tooth chamber. The apparatus can also include a pressure wave generator configured to generate acoustic waves that can be used for cleaning root canals and tooth surfaces in the tooth chamber. Examples of pressure wave generators include a liquid jet, an electromagnetic energy delivery device, and an ultrasonic device. The fluid can include antiseptic or antibacterial solutions to assist in tooth cleaning. The fluid may be degassed to have a reduced dissolved gas content (compared to non-degassed fluids used in endodontic treatments), which may improve the effectiveness of the pressure wave generation or the cleaning.

Examples of apparatus, methods, and compositions for endodontic treatments are described. The apparatus can include a fluid platform configured to substantially retain fluid in a tooth chamber during treatment. The fluid platform can help maintain fluid circulation in the tooth chamber as fluid flows into and out of the tooth chamber. The apparatus can also include a pressure wave generator configured to generate acoustic waves that can be used for cleaning root canals and tooth surfaces in the tooth chamber. Examples of pressure wave generators include a liquid jet, an electromagnetic energy delivery device, and an ultrasonic device. The fluid can include antiseptic or antibacterial solutions to assist in tooth cleaning. The fluid may be degassed to have a reduced dissolved gas content (compared to non-degassed fluids used in endodontic treatments), which may improve the effectiveness of the pressure wave generation or the cleaning.

A handpiece for endodontic practice, which is devised to drive a root canal instrument and includes: a control unit which runs a computer program, and a measuring element for measuring mechanical stresses experienced by the instrument, the measuring element is connected to the control unit. The computer program being configured to compare the mechanical stresses experienced by the instrument with respect to a predefined threshold, the predefined threshold preferably being a threshold permissible by the instrument. The mechanical stresses are at least axial stresses, and depending on the comparison between the axial stresses experienced by the instrument and the threshold: the computer program is programmed to adapt the driving of the instrument, and / or the handpiece including a warning element, and the computer program is programmed to activate the warning element.

A method of endodontic therapy with improved disinfection and ablation characteristics may feature the use of an alcohol or polyol-based indocyanine green (ICG) solution with a laser system that emits a wavelength within the maximal absorption range of ICG. By matching the dye and laser output, radiant energy use is maximized for efficient ablation and disinfection of treated tissues. Also, the use of an alcohol or polyol as a solvent for the ICG solution increases the inherent disinfection qualities of the solution itself. In one embodiment, the prepared canal is flooded with the ICG solution and the laser activates with the laser fiber inserted into the solution. In an alternate embodiment, the solution is mostly removed prior to activation of the laser, but only after necrotic tissue has been stained.

The invention belongs to the field of tooth and dental pulp, and particularly relates to a tooth and dental pulp treatment whole-process simulation tooth and jaw model which comprises an upper jaw model, an upper jaw base, an upper jaw joint, a lower jaw model, a lower jaw base, a lower jaw joint, a connecting device, a neck joint and a tail fixing device. The lower jaw model comprises a lower jaw shell, a movable fine adjustment module and extracted teeth; the lower jaw shell is filled with a gel material capable of absorbing water; the movable fine adjustment module is a detachable fine adjustment module. The device can quickly fix and replace human isolated teeth, also can restore the adjacency relation of the isolated teeth, the periodontal microenvironment and the moist conductive environment around the tooth root, can highly simulate the physiological conditions of the isolated teeth in dentition and jaw bone, is suitable for various teaching trainings such as tooth pulp disease microscopic root canal treatment, tooth restoration, microscopic root apex surgery and the like, and has a wide application prospect. And the application scene is greatly widened.

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.

Apparatuses and methods are provided for displaying the position of a dental file during endodontic treatment. Data showing the morphology of a tooth is obtained. In one embodiment, the data is X-ray image data. A three-dimensional representation of the dental file positioned in the tooth is generated, and a length that the dental file extends from an upper surface of the tooth is determined from the three-dimensional representation. A representation of the dental file is provided in the image of the tooth obtained from the data showing the tooth morphology, with the representation of the dental file being depicted such that a part of the representation of the dental file extends from the upper surface of the tooth in proportion to the length that the dental file extends from the upper surface of the tooth as determined from the three-dimensional representation and such that a remaining part of the representation of the dental file extends into the tooth, with a part of the remaining part of the representation of the dental file being positioned in the root of the tooth in the image. The image of tooth and representation of the dental file may be displayed.

A method of endodontic therapy with improved disinfection and ablation characteristics may feature the use of an alcohol or polyol-based indocyanine green (ICG) solution with a laser system that emits a wavelength within the maximal absorption range of ICG. By matching the dye and laser output, radiant energy use is maximized for efficient ablation and disinfection of treated tissues. Also, the use of an alcohol or polyol as a solvent for the ICG solution increases the inherent disinfection qualities of the solution itself. In one embodiment, the prepared canal is flooded with the ICG solution and the laser activates with the laser fiber inserted into the solution. In an alternate embodiment, the solution is mostly removed prior to activation of the laser, but only after necrotic tissue has been stained.

The utility model relates to the technical field of medical instruments, and discloses a tooth and pulp aspirator, the tooth and pulp aspirator comprises an aspiration mechanism, a collection mechanism and a transmission mechanism, an equipment shell provides structural support for the whole aspirator and protects internal components, a fixing seat is used for installing and fixing a waste collection tank to ensure the stability of the waste collection tank, and the transmission mechanism is used for transmission of the waste collection tank. The pressure gauge displays the current operation pressure to ensure the treatment safety, the storage battery supplies power to the equipment, so that the equipment can work without an external power supply, the use flexibility of the equipment is improved, and the pressure pump generates necessary suction force to carry out effective suction operation. According to the tooth and dental pulp aspirator, the advanced pressure pump and the fine pressure adjusting system are adopted, a doctor is allowed to accurately control the aspiration force according to treatment requirements, and due to the configuration, liquid and fragments in a dental pulp cavity can be rapidly and effectively cleared away during dental pulp treatment, the treatment efficiency is improved, and the treatment cost is reduced. Meanwhile, unnecessary discomfort to the patient is reduced.

The utility model discloses a dental pulp treatment device for oral medicine, which comprises a needle cylinder, a rubber piston is slidably connected to the inner wall of the needle cylinder, a piston rod is fixedly connected to the outer wall of the rubber piston, a pressing block is fixedly connected to one end of the piston rod, and two thumb buckles are fixedly connected to the outer wall of the needle cylinder. A round sleeve is fixedly connected to the outer wall of the needle cylinder, a rotating mechanism is arranged on the outer wall of the round sleeve, and a quantifying mechanism is arranged on the outer wall of the needle cylinder. The round sleeve, the transfer block, the butt joint pipe, the cylinder and the driving rod are arranged, the driving rod enables the needle head to rotate, the needle head is aligned with a root canal in a tooth, and follow-up dosing is facilitated; through the arrangement of the scale groove, the circular ring, the T-shaped block and the rectangular block, the rectangular block is blocked and cannot move after making contact with the circular ring, the purpose of quantitative drug delivery is achieved, and the situation that drugs are too appropriate or pushed insufficiently during pushing is avoided.

The demand for biocompatible dental materials has increased significantly, particularly in vital pulp therapy, due to the need for materials that promote tissue regeneration and long-term success. This invention introduces a novel Nanocarbon Platelets-Enhanced Portland Cement Composite that combines the well-established properties of Portland cement with the advanced mechanical and biological characteristics of graphene oxide nanocarbon platelets. This composite is designed to serve as both a restorative material and an agent for vital pulp therapy. The integration of graphene oxide nanocarbon platelets enhances the composite's mechanical properties while maintaining superior biocompatibility. This ensures the material supports cell viability and proliferation, crucial for successful tissue integration and regeneration. The unique formulation also improves the sealing ability of the cement, providing exceptional protection against bacterial infiltration and aiding in the preservation of dental structures. This invention aims to address the limitations of existing Portland cement-based materials, such as weak mechanical properties and potential cytotoxicity, by offering a more robust and biocompatible alternative. The composite is developed with a specific focus on dental applications, ensuring it meets the demands of modern restorative and endodontic procedures. The Nanocarbon Platelets-Enhanced Portland Cement Composite offers a cost-effective solution that can be easily integrated into existing clinical practices. Its development represents a significant advancement in materials science, with potential applications beyond dentistry, such as in orthopedic and craniofacial reconstruction. This composite sets a new standard for dental materials by combining mechanical strength, biocompatibility, and ease of use, promising improved outcomes for both patients and practitioners.

The invention relates to a composition, in particular to a swellable composition, for use in a process of treating a disorder in the oral cavity of a mammal. The composition comprises a guanidinyl-containing polymer, carrageenan, filler and a paste-forming component. During the process an active substance for treating the disorder is applied to and absorbed by the composition. The composition can be used for various purposes, including treating calculus, treating periodontitis, treating tissue lesions and for endodontic treatments.

In embodiments of a method for visually guided access cavity preparation, the method makes use of a 2D image of a phantom implant matching a desired access cavity path to a pulp chamber of a tooth anatomy, the phantom implant being non-tapered along its length and having a diameter no greater than 1.0 mm. The phantom implant is overlaid over a 2D or 3D image of the tooth anatomy and drilling of the access cavity path is monitored using a visual display that compares the drilled access cavity path to the desired access cavity path.

A needle assembly for endodontic procedure apparatus and a method of forming an endodontic needle are disclosed. The needle assembly comprises a connector for removably coupling the needle assembly to a handpiece, a body portion extending from the connector and providing a fluid conduit; and a polymer needle extending axially from a proximal end at the body portion to a distal tip. The tip has at least one opening, the needle has a lumen extending therethrough to define a fluid passageway from the fluid conduit of the body to the at least one opening. The needle may have a conical shape. The method may comprise providing a cylindrical preform of a first length and a first diameter and forming the cylindrical preform into a conical needle which tapers inwardly along its length.

A dental mirror with a reference point that includes an adjustable fixed mirror and reference point for endodontic treatment. This tool is attached to the bow of a tooth clamp by a clip and is removable. It enables a practitioners to hold a handpiece with one hand and the suction with the other. Practitioners will have an indirect view of the upper teeth using the mirror that is attached to the bow of the clamp. They can use the reference point if there is no clear point of reference for example in a badly decayed tooth or unclear reference point like in an inclined remaining tooth structure.

A method for warning of an instrument break risk during an endodontic treatment. The method includes the following steps: acquiring the shape of a root canal to be treated; identifying a risk zone, on the basis of complexities in the shape of the canal, such as bends or bifurcations in the canal; in real-time, acquiring a working depth of the instrument; determining the position of the instrument within the canal, and issuing a warning when the instrument reaches the risk zone.

The present disclosure relates to a delivery apparatus for endodontic procedures. The invention also relates to a dental apparatus and methods. In one aspect there is provided a delivery system for delivery of a fluid into a root canal. The system comprises a syringe (10) containing the fluid and a needle assembly (50) comprising a needle (55) extending axially from a proximal end at a body portion to a distal tip. The tip has at least one opening, the needle has a lumen extending through the needle to define a fluid passageway from an inlet at the proximal end to the at least one opening. The tip has an external diameter of no more than 300µm and a wall thickness of less than 50 µm. The needle is formed from a material having a tensile modulus of at least 1GPa. The fluid may be a high viscosity fluid.

The present disclosure relates to an endodontic treatment device (100) made of a shape memory alloy and having a working part (110). The working member (110) has a working profile comprising a substantially straight root tip segment (120) and an intermediate segment (130). The intermediate segment (130) is composed of a first curved portion (131) having a first peak (A1) and a second curved portion (132) having a second peak (A2) larger than the first peak (A1). The apical envelope (125) of the apical segment (120) forms an apical cone angle (alpha) with respect to the longitudinal axis (101). The intermediate envelope (135) of the intermediate segment (130) tangent to the first peak (A1) and the second peak (A2) forms an intermediate angle (alpha) with respect to the longitudinal axis (101), the root angle (beta) being smaller than the intermediate angle (beta).

This invention belongs to the field of endodontics, specifically relating to a simulated dental jaw model for the entire process of endodontic treatment. It includes a maxillary model, a maxillary base, a maxillary joint, a mandibular model, a mandibular base, a mandibular joint, a connecting device, a cervical joint, and a tail fixation device. The mandibular model includes a mandibular shell, a movable micro-adjustment module, and an extracted tooth. The mandibular shell is filled with a water-absorbing gel-like material. The movable micro-adjustment module is detachable. This invention allows for the rapid fixation and replacement of extracted human teeth, and can also recreate the adjacent relationships, periodontal microenvironment, and moist conductive environment around the tooth root. It can highly simulate the physiological conditions of extracted teeth within the dentition and jawbone, and is suitable for various teaching and training programs in endodontic microsurgery, dental restoration, and microsurgical root canal treatment, greatly expanding its application scenarios.

Methods of regenerating vital tooth tissue in situ after endodontic therapy include introducing a hydrogel scaffold into a root canal of a tooth in a patient after native pulp has been removed from the root canal. The hydrogel scaffold may comprise a sponge scaffold, and can be acellular. The hydrogel scaffold can contain chemotactic, angiogenic, neurogenic, and / or immunomodulatory biofactors that cause infiltration of endogenous cells from the patient into the root canal. Alternatively, such biofactors / drugs can be administered to the patient separately from the hydrogel scaffold. The hydrogel scaffold can fill the periapical space of an abscessed root.

An apex locator attachment for connection to an apex locator for measurement of the position of the length of a root canal during endodontic treatment. A shape, structure and dimensions of the attachment are configured to maximize the ease of use of the attachment and to enable mechanical and electrical coupling of a dental instrument to an apex locator while allowing the apex locator attachment to be easily cleaned, disinfected and autoclaved.

Disclosed herein is a dental device for delivering fluid continuously while activated in an endodontic application. The dental device includes a hollow needle having a tip end and a connector portion; and a handle. One end of the handle is configured to be affixed to the connector portion of the hollow needle. The opposite end of the handle is capable of being attached to an endodontic handpiece or a sonic agitator for the activation. The connector portion includes at least one tube connector that is an integral part of the connector portion of the hollow needle or a plurality of openings on the connector portion to accommodate the hollow needle to a connector. The connector is a modular fluid delivery connector which is removable from the needle such that it can be reused.

FIELD: dentistry.SUBSTANCE: intended for practicing manual endodontic treatment skills in students to improve the effectiveness of treating diseases of the periapical tissues of teeth. A phantom simulation model of a tooth with external root resorption is used, which includes a 3D-printed model of a tooth with a root canal having a hemispherical expansion at the root apex. In this case, the phantom simulation model of the tooth is made of transparent or radiopaque photopolymer resin, has a length of 30 mm with a red-colored canal system of 15 mm in length. In this case, the transparent model of the affected tooth is intended for the initial level of manual skill, and the opaque radiopaque model of the affected tooth is intended for the process of training in endodontic root canal treatment, where quality control of treatment and filling of root canals is possible only by radiographic method. In this case, the root apex has a size of No. 80 according to ISO, and the hemispherical expansion at the root apex of the tooth model, simulating a chronic lesion of the periapical tissues of the tooth, has a diameter of 8 mm. In this case, using Blue Sky Bio software, a three-dimensional image of the affected tooth is extracted from the patient's cone-beam computed tomography (CBCT) scan in DICOM format, then, using artificial intelligence algorithms in Blender software, the model is corrected, virtually modeling a tooth with a root cyst and external resorption. After this, the model is imported into STL format, 1.9 ml of resin is collected for subsequent slicing and 3D printing, and the walls of the root canal system of the resulting model are painted red with Funtodo photopolymer resin.EFFECT: inventions, by simulating endodontic treatment training conditions that are as close as possible to real conditions, namely, an apical plug in the area of the wide apex of a tooth root during inflammatory external resorption or after apical resection, allow for the practice of existing variations of endodontic treatment, and also minimize the time costs for model production.3 cl, 14 dwg, 1 ex

Provided herein are compositions and kits including trichloroacetic acid, and methods of using the same for debridement during endodontic treatment.

The present invention provides a structured, biologically based clinical method for mitigating symptomatic pulpal conditions and preventing unnecessary endodontic treatment. Targeted at teeth with vital pulps and reversible inflammation, the protocol combines selective caries removal, pulp protection using calcium hydroxide or MTA, a sedative zinc oxide-eugenol base, and provisional sealing with moisture-setting cement. The method includes diagnostic, therapeutic, and follow-up steps, with one-week, one-month, and three-month evaluations to assess healing. If symptoms persist, root canal therapy is initiated; if asymptomatic, definitive restoration is performed. Annual monitoring ensures long-term pulpal stability. This reproducible approach prioritizes pain control, infection management, pulp preservation, and tooth longevity. It provides an evidence-based alternative to conventional endodontics, reducing overtreatment while supporting functional and biological integrity of the dental organ.

The invention relates to the technical field of root canal treatment, in particular to an automatic dental pulp treatment robot which comprises a main machine and an auxiliary positioning crown mechanism used in cooperation with the main machine. The host comprises a power supply module, a control module, a root canal flushing module, a root canal drying module, an observation module and a root canal filling module; the auxiliary positioning crown mechanism comprises an input interface, an output interface, an observation module fixing hole, a rubber plug and a tooth fitting curved surface. According to the device, root canal treatment can be automatically completed, manpower resources are liberated, erbium laser in a sealed environment is used for activating washing liquid to conduct root canal cleaning and chemical disinfection, infected tissue and microorganisms left in the root canal can be thoroughly removed, root canal filling is conducted in a negative pressure pumping mode through a vacuum pump and a fluid paste filling mode, and the working efficiency is greatly improved. Three-dimensional filling of the fluid material can be achieved according to various anatomical forms of root canals, and the treatment effect can be comprehensively improved.

The invention relates to the technical field of oral medicine, in particular to a dental pulp treatment device for the oral medicine, which comprises an oral cavity opening assembly for opening the oral cavity of a patient, the oral cavity opening assembly comprises a lower support rod, one end of the lower support rod is hinged with an upper support rod, and both the lower support rod and the upper support rod are provided with chutes; a sliding block is in sliding fit in the sliding groove of the lower supporting rod, a nut seat is in sliding fit in the sliding groove of the upper supporting rod, a screw is in threaded fit in the nut seat, one end of the screw is rotationally matched with the upper supporting rod, and the other end of the screw penetrates through the upper supporting rod and is coaxially and fixedly connected with a hand screwing piece; one end, far away from the upper supporting rod, of the first connecting rod is hinged to the sliding block in the sliding groove of the lower supporting rod; one end, far away from the nut seat, of the second connecting rod is hinged to one end, far away from the upper supporting rod, of the first connecting rod; an upper tooth support and a lower tooth support are fixedly connected to one side wall of the upper supporting rod and one side wall of the lower supporting rod respectively. The oral cavity expanding device can adjust the oral cavity expanding amplitude and state in real time.

【Solution means】 A method for endodontic therapy with improved disinfection and cauterization characteristics is characterized by the combined use of an alcohol or polyol-based indocyanine green (ICG) solution (14) and a laser system (20) that emits a wavelength (24) within the maximum absorption range of indocyanine green (ICG). By adapting the output of the dye and the laser, the utilization of radiant energy is maximized, enabling efficient cauterization and disinfection of the treatment tissue. Furthermore, by using alcohol or polyol as the solvent for the indocyanine green (ICG) solution, the inherent disinfection properties of the solution itself are improved. In one embodiment, an indocyanine green (ICG) solution is injected into the adjusted root canal (14), and the fiber laser is operated with its tip inserted into the solution. In an alternative embodiment, most of the solution is removed before the operation of the laser, but such removal is performed only after the necrotic tissue (16) is stained.

The present invention relates to a nickel titanium (Ni-Ti) file for use in all fields of dentistry, including root canal therapy (endodontic applications), and in patient treatment procedures associated with root canal therapy. The Ni-Ti file is designed to remove filling residues, pulp and other residual materials from the root canal during pulp treatment.