1643results about "Teeth capping" patented technology

A stop for use with an electric drill bit, the stop having at least one threaded sleeve for positioning the stop relative to a surface into which the drill bit will extend. The stop may have both an inner and an outer sleeve. The sleeves are mounted coaxially, one inside the other about the drill bit. One of the sleeves, preferably the inner sleeve, provides coarse adjustment of the position of the shoulder relative to the tip of the bit, while the other, preferably the outer sleeve, provides fine adjustment of the position of the shoulder relative to the top of the bit.

A dental mouthpiece is provided that may be attached to a high-suction dental adapter for the purpose of assisting the dental staff during dental procedures through chair-side, hands-free suction, and isolation. Such a mouthpiece may comprise a main body portion, a cheek retractor portion, and a suction connector portion. In an embodiment, the main body portion, cheek retractor portion, and suction connector portion may be molded in one piece, preferably by injection molding. The main body portion has an anterior wall inside the curve and a posterior wall outside the curve, and an at least one connector connecting the anterior wall and the posterior wall. The main body portion has an anterior intervening wall and the posterior intervening wall in between the anterior and posterior walls. The anterior intervening wall and the posterior intervening walls have alternating crests and troughs.

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.

The dental mouthpiece has a curved shape and includes a main body portion located at the center of the curve and having a first end and a second end, a suction connector portion connected to the first end, and a lip hook portion connected to the second end. The main body portion includes a front wall on the inside of the curve and a rear wall on the outside of the curve. The front and rear walls define an interior space. At least one connector connects the front wall to the rear wall. At least one front intermediate wall extends from the front wall partially toward the rear wall. At least one rear intermediate wall extends from the rear wall partially toward the front wall. The at least one front intermediate wall and the at least one rear intermediate wall each have alternating peaks and valleys.

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 dental mouthpiece is provided that may be attached to a high-suction dental adapter for the purpose of assisting the dental staff during dental procedures through chair-side, hands-free suction, and isolation. Such a mouthpiece may comprise a main body portion, a cheek retractor portion, and a suction connector portion. In an embodiment, the main body portion, cheek retractor portion, and suction connector portion may be molded in one piece, preferably by injection molding. The main body portion has an anterior wall inside the curve and a posterior wall outside the curve, and an at least one connector connecting the anterior wall and the posterior wall. The main body portion has an anterior intervening wall and the posterior intervening wall in between the anterior and posterior walls. The anterior intervening wall and the posterior intervening walls have alternating crests and troughs.

An intraoral device for dental isolation and fluid evacuation is disclosed. The device includes a first flap and a second flap positioned adjacent to the first flap to form an evacuation chamber, the second flap including a plurality of peaks and troughs forming a waveform shape at a first edge and a second edge of the second flap, the plurality of peaks and troughs forming a plurality of channels in fluid communication with the evacuation chamber; and an evacuation source connection portion including an opening that is in fluid communication with the evacuation chamber and configured to facilitate fluid evacuation when the evacuation source connection portion is attached to an external vacuum suction device, wherein an interior second flap surface is configured to touch an interior first flap surface at the plurality of troughs at least when suction is applied by the external vacuum suction device.

An orthodontic bracket and archform system that uses friction-free mechanics are disclosed. The archform can have a male fastener that can be retained within an orthodontic bracket. The orthodontic bracket can have varying locking mechanism, such as deflectable tabs, springs, locking pins, and others, that can cooperate with features of the male fastener to prevent sliding between the archform and the bracket.

A method for collecting usage data of an endodontic instrument. The method includes the following steps: acquiring data relating to the shape of a root canal to be treated; at regular intervals, acquiring data relating to the working depth of the instrument in the root canal; at regular intervals, acquiring data relating to the stress undergone by the instrument during work; and producing a database linking each data item acquired.

Image acquisition device comprising: - a support (12); - a dental retractor (14) fixed to the support and defining a retractor opening (24); and - means for fixing an image acquisition device to the support in a position in which the acquisition device is oriented to receive an image of the retractor opening.

The invention discloses a root canal filling needle head and a root canal filling device, the needle head comprises a needle tube and a handle body, the needle tube is provided with a far end and a near end connected with the handle body, the needle tube is provided with a flow channel penetrating through the far end and the near end, and the needle tube is provided with a guide reinforcing tube; the filling device comprises a pressure generator and the root canal filling needle, and the pressure generator provides positive pressure or negative pressure for the interior of the needle tube flow channel. The guide reinforcing tube is arranged on the needle tube to increase hardness, so that the needle tube can be inserted into the tail end of the bent root canal more smoothly; the root canal is vacuumized by utilizing the needle head, so that the whole root canal can be filled with a root canal sealing agent, and the probability of underfilling or overfilling is reduced; by arranging the pressure detection device, the pressure in the needle tube can be maintained at a set value through negative feedback adjustment, bubbles generated during root canal filling are effectively reduced, the needle tube is prevented from being blocked, and the filling effect is improved.

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 invention provides an enamel veneering repair material and a preparation method thereof, and belongs to the technical field of ceramic forming products. In order to further improve the attaching property of a tooth veneering material, reduce the amount of abraded tooth tissues and reduce the risks of ceramic collapse and falling off. Zirconium oxide, aluminum oxide, hydroxyapatite, silica dimethylsilylate, silicon dioxide, fluorapatite, magnesium oxide, thermosetting acrylic resin, aluminum hydroxide gel, a silane coupling agent, polyvinyl alcohol, sodium phytate and the like are adopted as raw materials, all the components are matched according to a certain proportion, and a special technology is adopted for preparing the tooth patch. While good biocompatibility, high hardness and wear resistance are ensured, the adhesion can be further improved, the removal amount of tooth tissues by grinding is reduced, the risks of ceramic collapse and falling are reduced, the service life is prolonged, and better use experience is provided.

Methods and apparatuses for taking, using and displaying three-dimensional (3D) volumetric models of a patient's dental arch. A 3D volumetric model may include surface (e.g., color) information as well as information on internal structure, such as near-infrared (near-IR) transparency values for internal structures including enamel and dentin.

An intraoral assembly for endoscopy, including a bite bar, including a tubular section including a first end and a second end, a first flange arranged at the first end having an indentation therein, a second flange arranged at the second end, and a first through-hole, and a tongue restraint, including, a proximal end, a distal end, a top surface, a bottom surface, a first side, a second side, and a hole extending from the proximal end to a location proximate the distal end, wherein the bite bar is adjustably and removably connectable to the tongue restraint. The tongue restraint having a pair of protrusions arranged in each of a pair of a channels. The tongue restraint having an extension arranged to be seated within the indentation of the bite bar.

A custom tool for forming a dental restoration in a mouth of a patient includes a one-piece mold body providing for a customized fit with at least one tooth of the patient, the one-piece mold body including an occlusal portion forming an occlusal surface corresponding with an occlusal surface of the tooth, a mesial proximal portion forming a mesial proximal surface corresponding with a mesial proximal surface of the tooth, and a distal proximal portion forming a distal proximal surface corresponding with a distal proximal surface of the tooth. The mold body is configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of the tooth. The occlusal portion, the mesial proximal portion, and the distal proximal portion are based on three-dimensional scan data of the mouth of the patient.

A dispensing system includes a dispensing outlet, a cartridge, a connector and a plug element arranged within the connector and at the cartridge. The connector is arranged at the cartridge and the dispensing outlet is separate from the connector and the cartridge and is lockable to the cartridge by a rotation of the connector into a position of use. A rotation of the connector into the position of use brings about an axial movement of the plug element relative to the cartridge and to the dispensing outlet.

The invention relates to the field of root canal therapy, in particular to a root canal therapy doctor preparation process optimization system and method and a storage product. Working data of a motor of the root canal device in a first time period are obtained, the first time period comprises N time nodes, and N is a natural number larger than or equal to 1; wear data of the file needle assembly at each time node is obtained; and acquiring medical data of the treatment progress of the root canal at each time node. And integrating the working data, the wear data and the medical data to generate an operation optimization suggestion. According to the working data of the motor and the abrasion data of the filing needle, the operation habit and tendency of a doctor in the treatment process can be known, and meanwhile, improvement suggestions are given according to comparison of the operation tendency of the doctor and standard parameters. Furthermore, in combination with the recovery condition of the patient in the medical data, the optimal operation suggestion is given according to the treatment habit of the doctor, the optimal balance between the operation and the treatment effect is sought, and the risk of needle filing instrument separation is reduced.

There is provided a method comprising: detecting and / or segmenting a dental-related anatomical structure of a subject from a dental 3D imaging model, wherein the dental-related anatomical structure includes a target for injection of anesthesia by a dental syringe, accessing sequential frames of an oral cavity of a subject captured by an image sensor during a dental session of the subject, presenting within a GUI, at least one fused frame depicting a merger of the sequential frames and the segmentation of the dental-related anatomical structure of the subject registered to the sequential frames, wherein the dental-related anatomical structure is depicted on the sequential frames at a location indicating the target for injection, and dynamically updating the location of the dental-related anatomical structure depicted on the sequential frames according to dynamic adaptation of a pose of the image sensor.

A dental mouthpiece is provided that may be attached to a high-suction dental adapter for the purpose of assisting the dental staff during dental procedures through chair-side, hands-free suction, and isolation. Such a mouthpiece may comprise a main body portion, a cheek retractor portion, and a suction connector portion. In an embodiment, the main body portion, cheek retractor portion, and suction connector portion may be molded in one piece, preferably by injection molding. The main body portion has an anterior wall inside the curve and a posterior wall outside the curve, and an at least one connector connecting the anterior wall and the posterior wall. The main body portion has an anterior intervening wall and the posterior intervening wall in between the anterior and posterior walls. The anterior intervening wall and the posterior intervening walls have alternating crests and troughs.

A hardenable (e.g. dental) compositions is described comprising an encapsulated material. The encapsulated material comprises a basic core material and an inorganic shell material having certain viscosity criteria. Also described are dispensing devices and kits are described comprising a hardenable (e.g. dental) composition comprising a liquid material and an encapsulated material wherein the encapsulated material comprises a basic core material and an inorganic shell material comprising a metal oxide surrounding the core. The dispensing devices and kits can facilitate the methods of applying the hardenable composition. The hardenable or hardened (e.g. cured) composition can provide various technical effects such as a delayed release of a basic core material, a delayed increase in basicity, promoting remineralization of a tooth or bone structure, and increasing the average alkaline phosphatase (ALP) activity of pulp cells. In some embodiments, the composition is a dental (e.g. sealant) composition for application to a tooth structure.

The present invention relates to an improved packaging for peptides that need to be dissolved before application, for example, self-assembling peptides such as P11-4. In particular, the present invention provides a blister packaging that can be both conveniently used and more cheaply produced than previous packaging, as well as use thereof in application of the peptide, e.g., in treatment of subsurface caries lesions.

The light curing machine comprises a handle shell, a light guide rod, a control circuit board, a power source assembly, a light source assembly and a shading assembly, the control circuit board, the power source assembly and the light source assembly are all arranged in the handle shell, the light guide rod is detachably connected with the handle shell, and the shading assembly comprises a miniature air pump and an annular shading air bag. The micro air pump is arranged in the handle shell, the annular shading air bag sleeves the light guide rod, the side wall of the light guide rod is provided with an inflation and deflation channel communicated with the annular shading air bag, the micro air pump is communicated with the inflation and deflation channel, the side walls of the upper end and the lower end of the handle shell are provided with air inlet grilles, and the power supply assembly, the light source assembly and the micro air pump are all electrically connected with the control circuit board. Through cooperative use of the micro air pump and the annular shading air bag, the annular shading air bag is unfolded for shading after being inflated, the sight of a doctor is not affected when the annular shading air bag is contracted on the light guide bar before being inflated, the working efficiency is improved, the heat dissipation effect of the light curing machine is good, and the service life can be prolonged.

The invention discloses a duplex adjacent surface forming sheet system, which belongs to the field of oral cavity medical instruments and comprises a first forming sheet and a second forming sheet, the fixing ring is used for clamping the two sides between the first forming piece and the second forming piece which are attached to ensure that the first forming piece and the second forming piece are attached to teeth; a hollow groove is formed in the middle of the second forming sheet, and a positioning connecting structure connected with the second forming sheet is arranged on the first forming sheet; the positioning connecting structure comprises mounting holes which are symmetrically formed in the two sides of the middle of the first forming piece and matched with the two ends of the second forming piece. By means of the design, the two forming pieces can be overlaid at the same time, and perfect wrapping of the adjacent faces of the two teeth and accurate recovery of the contact are achieved. In addition, the gap between the two adjacent faces can be integrally planned through the mode, and many defects caused by respective filling in a traditional mode are overcome, for example, the problems that filling of the other adjacent face hole is hindered due to the fact that one filling body is too large, and food is impacted due to deviation of a contact area are solved.

An expansion-type root canal filling medical instrument combination based on tooth root tip biological sealing, and a use. The medical instrument comprises a sealant composition and a titanium material root canal obturating point; the sealant composition is composed of a liquid agent, component-A powder, and component-B powder that are isolated from each other before use, the component-A powder comprises 75%-95% of tricalcium silicate and 5%-25% of β-tricalcium phosphate, and the component-B powder is composed of 45%-55% of nano zirconium dioxide, 44.7%-52% of calcium hydroxide, and 0.3%-3% of calcium oxide; the surface of a root canal section (1) of the titanium material root canal obturating point is provided with a thread (102) tending to be horizontal, and a thread groove of the root canal obturating point is used for being filled with a prepared sealant; the surface of a dental crown section (2) is provided with a retention groove section. The medical instrument combination solves the problems of root canal treatment failure or poor long-term effect and the like caused by volume shrinkage after existing sealants and gutta percha points are filled, and can realize high-safety, high-biocompability, high-quality and high-density root canal filling.

The present invention is a dental material carrier and a dispenser gun thereof configured to mark the amount of a dental material used or remained in the dental material carrier. The dental material carrier comprises a body with opaque scratchable colored markings and to be pre-loaded with a predetermined amount of a dental filling material. The dispenser gun having a housing configured to receive the dental material carrier and a piston with an extended metal bar attached to the piston. The metal bar having a pin to scratch the markings on the dental material carrier. In one embodiment the dispenser gun further has a locking mechanism to provide a one way advancement of the piston and lock the piston at the point of usage of the dental material used inside the carrier. In another embodiment the marking element is an O-ring.

Disclosed herein are systems and methods for eradicating biofilms by killing bacteria within the biofilm, degrading the matrix, and removing biofilm debris. The disclosed subject matter provides techniques for administering a suspension of H2O2 and iron oxide nanoparticles to substantially eradicate bacteria within the biofilm matrix, degrading the biofilm matrix, actuating the iron oxide nanoparticles to assemble into a biohybrid robot suitable for removing biofilm debris, and powering the biohybrid robot to remove biofilm debris from accessible or enclosed surfaces. In some embodiments, the disclosed subject matter includes embedding iron oxide nanoparticles in a hydrogel to form a soft robotic structure, administering the soft robotic structure to a biofilm-covered site, and magnetizing the soft robotic structure to substantially eradicate bacteria within the biofilm matrix, degrading the biofilm matrix, and removing biofilm debris from enclosed surfaces.

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 invention discloses a dental implant fixator, and particularly relates to the technical field of dentistry, the dental implant fixator comprises an implant, an abutment and a connecting screw, the top of the implant is provided with a hexagonal hole, the abutment comprises a base body, the bottom of the base body is fixedly provided with a hexagonal block, the bottom of the hexagonal block is inserted into the hexagonal hole, and the connecting screw is connected with the hexagonal hole. And the connecting screw penetrates through the abutment and is in threaded connection with the implant. According to the dental implant fixator disclosed by the invention, the implant and the abutment are locked together in the mounting process of the connecting screw through the arranged anti-falling device, the implant and the abutment are prevented from loosening under the dual locking matching of the anti-falling component of the connecting screw, and meanwhile, the implant and the abutment are prevented from loosening due to the loosening of the connecting screw. The anti-loosening assembly is arranged outside the connecting screw, and the tooth socket matched with the anti-loosening assembly is arranged inside the implant, so that the connecting screw is prevented from loosening, and the connection stability between the abutment and the implant is further ensured.

The invention relates to the technical field of medical data processing, and comprises a big data driven oral treatment planning system, which comprises a tooth form data acquisition module, a microcrack identification module, an occlusion stress data processing module, a restoration form optimization module and a customized treatment recommendation module. According to the method, the reliability of micro-crack identification is improved by acquiring the tooth surface morphology point cloud data, accurately depicting micro details of the tooth surface morphology and screening areas with violent curvature change and continuous space, the areas with large local stress are identified by analyzing the stress conditions of tooth tip staggered contact points in different occlusion states, and the accuracy of micro-crack identification is improved. The contact point form of the local abnormal stress area is adjusted, the long-term stability of the restoration is optimized, the adaptability of a restoration material and tooth tissue under different stress conditions is analyzed, whether the restoration form meets the long-term stress balance requirement or not is comprehensively judged, and the long-term stability and occlusion adaptability of the restoration are ensured.