558results 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.

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.

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.

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.

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.

An apparatus for treating a tooth or gum tissue is disclosed. The apparatus can include a tooth cap for supporting a treatment device during a treatment procedure. The tooth cap can comprise a platform to support the treatment device. The platform can include an access port to provide a portion of the treatment device with access to a treatment region of the tooth or gum tissue. The tooth cap can also include a wall coupled with and angled relative to the platform, the wall configured to be attached to the tooth or gum tissue during treatment.

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.

Methods and kits of materials and supplies for restoring teeth by an injection molding process and / or mold overlays in situ in a patient's mouth so as to correct the imperfect teeth of the patient's dentition. The imperfect teeth are corrected by applying restoration materials using a mold of a corrected model of the patients dentition placed over the imperfect teeth. Adjacent teeth may be covered with a polymer release material prior to injection molding of teeth to be corrected, such that the teeth to be corrected have at least one tooth between them draped with the polymer release material to provide a space adjacent to each of the corrected teeth. The corrected teeth are then covered with the polymer release material in a second round of treatment and restoration material is applied to one or more previously covered teeth to provide a first layer which simulates the dentin layer of teeth. Thereafter a simulated enamel layer is applied over the dentin layer using one or more alternating molds and yet another simulated incisal layer is applied over the enamel layer using one or more alternating molds employing the techniques described.

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.

Devices, systems and methods for dental arch expansion. A polymeric shell including teeth receiving cavities may be shaped to impart an arch expansion force onto a first tooth of one or more teeth to move the one or more teeth from a first position a first distance from a midline of the arch to a second position a second distance from the midline of the arch, the second distance being greater than the first distance. An occlusal feature extending outward from an occlusal wall of a tooth receiving cavity may be configured to contact an outer occlusal surface of an opposing appliance to impart an anti-tipping force onto the first tooth. The anti-tipping force may be of a magnitude and direction to counteract a tipping moment generated at least in part due to the arch expansion force.

Wire attachment dental appliances. A shell may be shaped to receive teeth of a dentition. The shell may include an attachment material reservoir that is configured to accept an attachment material therein. A wire attachment member may be configured to be secured to the shell. The attachment material reservoir and the wire attachment member may be aligned along an arch line of the shell in a manner that allows a wire to simultaneously pass through the attachment material reservoir and engage with the wire attachment member.

The invention discloses a tongue blocking device for mouth rehabilitation based on the mouth rehabilitation department, and relates to the technical field of mouth rehabilitation, the tongue blocking device comprises a bearing plate, a connecting rod is welded to the outer side face of the bearing plate, an adjusting mechanism is arranged at the end, away from the bearing plate, of the connecting rod, and the adjusting mechanism is used for adjusting the extrusion force on the mouth. By arranging the adjusting mechanism, after the bearing plate is placed on the jaw of a patient, the effect of positioning the device in the oral cavity of the patient can be achieved by starting the adjusting mechanism, a circulation mechanism is arranged at the end, away from the bearing plate, of the connecting rod and used for changing the circulation mode of liquid, and the circulation mechanism comprises a middle pipe. The middle pipe is welded to the end, away from the bearing plate, of the connecting rod, and communicating pipes symmetrically penetrate through the outer side face of the middle pipe, so that the tongue of a patient is blocked during oral rehabilitation.

A method for aligning a digital 3D model of a pair of dental arches, including a mandible and a maxilla, to produce an occlusion. The method estimates representative planes for the mandible and maxilla of the 3D model and transforms the model so that the representative planes are aligned with their respective coordinate systems and represented in a horizontal view. The method also transforms the model so that the mandible and maxilla are aligned with the same coordinate system and represented in a front view. The digital 3D model is then occluded so that the mandible is in occlusion with the maxilla or within a near-occlusal distance. The digital model of the occluded pair of dental arches can also be translated or rotated so that it is displayed centered in the front view.

The utility model discloses a horizontal clamping screw retention type loose tooth fixing device, which comprises a lip-cheek side splint, a lingual palatal side splint and a retention screw, the lip-cheek side splint and the lingual palatal side splint respectively comprise a tooth fitting part and a retention part, the lip-cheek side splint and the lingual palatal side splint are respectively clamped on the inner side and the outer side of a tooth, and the retention screw is fixed on the lip-cheek side splint and the lingual palatal side splint. The opposite surfaces of the tooth fitting part are respectively matched with the lip buccal surface and the tongue palate surface of the tooth in shape, and the retention part is embedded in the tooth gap or the tail end of a dental arch and is fixedly connected through a retention screw. The dental implant can be used at the early stage of tooth loosening, and dentition defects can be repaired in time without affecting subsequent periodontal treatment.

The working tooth to be treated is prepared in the patient's mouth. A guide device is fastened onto the tooth to fix its position. A cutting device inserted into the guide device is moved, so that the flange of the cutting device slides along a slot extending within the guide device and makes contact with it, and the tool of the cutting device removes a portion of the working tooth, thereby forming the prepared surface of the working tooth. The tool includes a portion with a curved profile in the plane containing the axis of the tool, so that the working tooth is rounded by its tool portion. The cutting device and guide device are removed from the patient's mouth. A dental alignment device is fastened onto multiple teeth, including the working tooth, so that the prepared surface and the dental alignment device face each other.

The utility model discloses a temperature sensing structure of a hot melting gutta-percha gun, which comprises a gutta-percha filling barrel, a gutta-percha filling barrel fixing seat and a temperature sensor, one end of the gutta-percha filling barrel is detachably connected with the gutta-percha filling barrel fixing seat, and a heating coil is sleeved on the outer wall of the gutta-percha filling barrel when the temperature sensing structure is used; the temperature sensor is connected with the glue filling barrel and senses the temperature of the glue filling barrel in real time. According to the temperature sensing structure, the glue containing barrel and the temperature sensor are designed to be separable, the temperature sensor senses the temperature of the glue containing barrel through the elastic piece with good thermal conductivity, and the temperature can be sensitively, rapidly and accurately monitored; and due to the plug-in design of the glue filling barrel and the glue filling barrel fixing seat, the glue filling barrel is more convenient to disassemble, and the temperature sensing effect is not influenced.

The invention relates to a two-part dental sealant, a method of application with a syringe device, and a kit. Specifically, the present invention provides a method of administering a two-part dental sealant, the method comprising providing a syringe device (1) comprising a cartridge (10) comprising a first chamber and a second chamber. The first chamber comprises a first portion of a dental sealant comprising a (meth) acrylate resin and an oxidation curing agent. The second chamber comprises a second portion of the dental sealant comprising a (meth) acrylate resin and a reducing curing agent that reacts with the oxidizing curing agent of the first chamber. The first portion and / or the second portion of the dental sealant further comprise a single component or components that neutralize acids and promote remineralization. The syringe device comprises a dispensing nozzle (17) comprising a static mixer and an outlet at one end of the cartridge and a plunger (20) at the opposite end of the cartridge. A kit for storing and applying a dental sealant is also described.

The present invention relates to a method and a system for manufacturing a retaining wire (11), said retaining wire (11) having a shape which is folded along the lingual surface of a set of teeth (12). To this end, a wire that is made of a shape-memory material and has a rectangular cross-section comprising a plurality of braided strands is assembled in the groove of a mould, said groove defining said folded shape. The shape-memory material is then activated.

A needle assembly for an endodontic apparatus, comprising: a head for removably coupling the needle assembly to a handpiece; and a needle extending from the head at a proximal end to a distal tip, a lumen of the needle extending to an opening at the tip to deliver fluid into a root canal, wherein the needle tip is positionable within a portion of the root canal; and the lumen has a diameter to enable fluid to be delivered at a delivery pressure in excess of a threshold cavitation pressure, wherein delivery of fluid through the needle at a delivery pressure in excess of a threshold cavitation pressure into the root canal generates a backflow in the root canal that facilitates forming of a cloud of inertial cavitation within the fluid in the root canal forward of the needle tip.

Method for electronically indicating a concentration of an irrigation solution in a root canal (RC) of a tooth (T), using a device able to be electrically connected to an endodontic instrument engaged in the canal and to a labial electrode, and including a screen to display the progression of the instrument in said canal relatively to a critical apical point of reference such as the cemento-dentinal junction (CDJ), said device being furthermore able to measure, in the vicinity of said point of reference, by conductimetry, a concentration of an electrolyte irrigation solution injected into the root canal.

The invention relates to an assistance system (10) for assembling a retaining device (1), the retaining device (1) comprising: - at least two plates (4), - at least one retaining element (6); the guide (11) comprising at least two guide surfaces (12), each guide surface being shaped to be at least partially complementary to a single plate (4), the guide (11) further comprising at least one guide mark (13) for the retaining element (6), the guide surfaces (12) and the guide mark (13) being positioned relative to one another in a predetermined manner, in order to be at least partially complementary to the retaining device (1) in a retaining configuration.

The utility model relates to the technical field of pit and fissure sealing agent smearing, and particularly discloses a pit and fissure sealing agent extrusion coating device which comprises a main body, the main body is arranged to be a hollow cylindrical shell, and friction blocks are continuously arranged on the surface of the main body; a sliding rod is embedded in one side of the surface of the body, one side of the sliding rod is inserted into the body and connected with a rubber block, and one side of the sliding rod is connected with a connecting block. According to the extrusion coating device for the pit and ditch sealing agent, the plugging block and the connecting rope are arranged, the plugging block is pulled outwards so that the plugging block can be taken out from the interior of the feeding port, at the moment, the pit and ditch sealing agent can be added according to the discharging port, feeding of the pit and ditch sealing agent is facilitated, and the use convenience of the device is improved; when the friction block extrudes the pit and groove sealing agent, the pit and groove sealing agent flows to the outlet pipe more smoothly, residues of the sealing agent in the main body are reduced, the utilization rate of the sealing agent is increased, and waste is avoided.

The invention provides a preparation method of a high-flexibility TiNi alloy wire, and belongs to the technical field of alloy materials. According to the method, a cold drawing-straightening annealing-aging heat treatment mode is adopted, B2-to-B19'martensite phase transformation can be fully inhibited, and only B2R phase one-step phase transformation occurs in the cooling and heating processes. The R phase serves as a martensite phase in the TiNi alloy, the elasticity modulus of the R phase is smaller than that of a B2 parent phase and that of a B19'martensite phase, the nucleation process is avoided through the nanometer domain structure, and the R phase directly grows up under the action of external stress. Therefore, by constructing the R-phase nano domain structure, the deformation behavior of the TiNi alloy can be changed, the TiNi alloy wire with high flexibility and appropriate elasticity modulus is obtained, the TiNi alloy wire is suitable for the required medical environment such as the field of tooth orthodontics, heating is not needed in the operation gap in the use process, and the clinical operation process can be simplified.

Embodiments of this disclosure provide a staging assembly (10) for negative pressure, multi-canal irrigation of a root canal system followed by obturation. The staging assembly may be part of a kit that includes a plurality of catheters (50) sized for insertion into the root canal system. To hold the catheter in its proper position in the canal, the catheter may include a stop (37) and the staging assembly may include a corresponding stop hold (36). The distal end (51) of the catheter can be positioned 2 mm to 5 mm from the terminus end of the root canal. The staging assembly is then sealed, creating a closed system. Irrigating solution is vacuum-drawn out the ends of the catheters and debris is evacuated through a vacuum port of the staging assembly. During irrigation, no hands on time is required by the clinician. After irrigation, vacuum is reversed to dry the canal. Obturation occurs through the vacuum.

The present invention provides a snoring and sleep apnea prevention device (1) for preventing snoring and sleep apnea, comprising: a preventive device body (10) extending forward and backward, with a front end portion sandwiched between a user's upper teeth (2) and lower teeth (3) and a rear end portion extending rearward along the user's tongue (6); an upper teeth stopper jaw (20) provided on the top surface of the front end portion of the preventive device body (10) and protruding upward so as to block the user's upper teeth (2) from protruding forward; a lower teeth guide inclined portion (30) provided on the bottom surface of the front end portion of the preventive device body (10) and inclined upward as it moves forward so as to protrude further forward than the upper teeth (2) caught on the upper teeth stopper jaw (20) when the user's lower teeth (3) bite the bottom surface of the preventive device body (10); and a stopper wing (50) extended forward of the upper teeth stopper jaw (20) so as to hook on the user's lips (4, 5).

Oral appliances, their components, and methods of their use for oral mapping and hygiene are disclosed. One method of using an oral appliance, comprises using a tool while the tool is at least partially within the oral cavity of a living creature; moving the tool, with a motion generator comprised of at least one linear and / or rotary motion-producing device; retrieving a map from machine-readable memory; and processing, with nonhuman processing circuitry, the map to generate control signals for controlling movement of the motion generator; and the processing circuitry using the map to control the motion generator to move the tool within the oral cavity so that the tool performs one of the functions of: cleaning, inspecting, scanning, imaging, dispensing, repairing, and surgery of anatomical features of the oral cavity.

The present invention relates to a dental article (10) comprising: an applicator (20) having a compartment (30) having an inner surface (31) with a structured surface area comprising a recess (32), a piston assembly (40) movably located in the compartment (30), and a dispensing section (50) located at a distal end of the compartment, the piston assembly comprises a piston main body (41); a lubricant composition (60) located at least in the recesses of the structured surface area (32); a dental material (70) in contact with the lubricant composition (60) is located in the compartment.