738results about "Teeth filling" patented technology

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.

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.

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.

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.

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 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.

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.

The invention relates to an intelligent control method and system for an internal cooling wet preparation nickel-titanium root canal treatment file, and solves the problems that traditional control is difficult to adapt to treatment requirements of root canals in different forms, excessive or insufficient cutting is likely to occur, and complications such as root canal wall lateral penetration and instrument breakage are caused. The method comprises the following steps: iteratively optimizing a root canal preparation strategy through a multi-target reward function by taking pressure, temperature, cleaning effect and anatomical characteristics as state spaces and taking a filing tool rotating speed, a motion mode and flushing fluid flow as action spaces, and generating a parameter combination comprising the optimal rotating speed, the optimal motion mode and the optimal flushing fluid flow; the parameter combination is output to a control system to drive the nickel-titanium root canal treatment file to execute corresponding operation, a safety threshold value is dynamically corrected according to the treatment stage and anatomical characteristics, and when the parameters deviate from the threshold value, early warning is triggered and compensation is executed. The method has the advantages that multi-parameter intelligent regulation and control are achieved, and the safety and effectiveness of root canal therapy are improved.

A depth stop for a drilling tool to form a hole of predetermined depth. The depth stop includes an interface portion that couples directly to the shank of the osteotome via interlocking spur and groove features. The interface has a cap flange and a tapered skirt. The underside of the cap flange establishes a reference surface for a tubular key that slides onto the tapered skirt and is held there by friction. The skirt is formed with a relief directly under the cap flange to facilitate haptic confirmation of proper connection. Elongated irrigation windows in the key expose a domed transition on the osteotome, thereby facilitating irrigation. The depth stop can be used, optionally, with an alignment jig designed with a precision guide bushing. The guide bushing is semi-cylindrical and terminates with an internal abutment step against which the lower end of the key engages at full depth.

A cartridge assembly includes a collapsible cartridge having a film cartridge wall and an outlet, the film wall bounding a chamber, the chamber extending along a longitudinal axis of the cartridge. The collapsible cartridge further includes a first end having a head part with the outlet for dispensing material being formed at the head part, a support sleeve including a rigid sleeve wall forming a receiving area to receive the collapsible cartridge. The support sleeve includes first and second ends and a support sleeve axis extending therebetween, two half shells connectable with one another to form the support sleeve and the receiving area therebetween, or, the support sleeve includes a connector to releasably fix the collapsible cartridge inside a respective receiving area of the support sleeve.

The present invention relates to diagnostic intraoral scanning and tracking. The present invention relates to methods and apparatus for acquiring, using, and displaying a three-dimensional (3D) volume model of a patient's dental arch. The 3D volume model may include surface information (e.g., color) as well as information about internal structures (e.g., near-infrared (Near-IR) transparency values ​​of internal structures including enamel and dentin).

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.

There is disclosed a standardized system for the preparation of an area of a tooth for fitting a dental veneer, and the subsequent installation of the dental veneer onto the tooth, in the prepared area. The system uses a grinding oscillating tip, which is specific for a prefabricated or stock veneer, the prefabricated or stock veneer corresponding to the shape of grinding tip (the tip has the shape of the prefabricated or stock veneer).

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.

The present disclosure discusses techniques and systems for separating dental models (101) from a thermoformed film (1001). A separation system can include a separator unit with one or more separator rods (1303) extending from the separator unit. The separator rods can fit within channels formed within the dental model and can be used to pull the dental model apart from a thermoplastic film that is thermoformed over the dental model.

The invention belongs to the field of dental restoration digitalization, and particularly relates to an anterior tooth layered resin filling restoration method based on the guidance of a digital guide plate. Comprising the following steps: S1, obtaining a three-dimensional digital model of an abutment tooth preparation body; s2, generating a digital model of the dentin form of the defect part layer by layer by using oral cavity computer-aided design software; s3, completing the design of the enamel layer form on the digital model of the dentin form of the last layer of tooth defect part; s4, cover shell type guide plates covering adjacent teeth of the defective teeth are designed, and the cover shell type guide plates are numbered; s5, performing 3D printing on each layer of model and the guide plate, and checking the in-place condition of the guide plate; and S6, filling corresponding dentin resin and enamel resin in each stage of guide plate, resetting the guide plate filled with the resin to the oral dentition, and completing layered resin filling through illumination curing. According to the method, the process is optimized, the operation is simplified, and the operation precision is ensured by fully utilizing the advantages of the digital technology.

Customized temporary veneers. The customized temporary veneers are configured to be temporarily attached to a target region of an individual's dental arch and include a plurality of tooth-covering regions, at least one joining region, and a gum-proximate region. Each tooth-covering region includes a corresponding vestibular region configured to at least partially cover a vestibular surface of a corresponding tooth of the dental arch. The at least one joining region operatively attaches a pair of adjacent tooth-covering regions to one another. The gum-proximate region extends from the plurality of tooth-covering regions and is configured to extend at least partially between the plurality of tooth-covering regions and a gum of the individual's dental arch. The corresponding vestibular region defines a vestibular region thickness, and the gum-proximate region tapers from the vestibular region thickness to a gum-proximate edge that defines a gum-proximate edge thickness.

Described herein are intraoral scanning apparatuses comprising visible light and near-infrared (near-IR) light images from a patient's dentition. These apparatuses may display a 3D model of the patient's dental arch and a plurality of images of the patient's dental arch taken from different angles and positions relative to the patient's dental arch, and may both generate and display a two-dimensional (2D) image based on a relative angle and position between the indicator relative to the 3D model of the patient's dental arch.

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 present application describes fibre-reinforced dental composites (FRCs), processes for producing, and uses of, the fibre-reinforced dental composites. More particularly, the fibre-reinforced dental 5 composites described herein comprise a polymerisable resin and from about 0.5% to about 25% w / w of fibres having a diameter of from about 3 µm to about 9 µm and a length of from about 60 µm to about 2 mm.

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.

To provide a thio-urethane (meth)acrylate compound that enables imparting flexural strength to a cured product.SOLUTION: A thio-urethane (meth)acrylate compound comprising two linkages represented by formula (X), two urethane linkages, and two (meth)acryloyl groups, wherein in formula (X), the two * each indicate a bonding site.SELECTED DRAWING: None

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.

To provide a method and a device for acquiring, using and displaying a three-dimensional (3D) volumetric model of a patient's dental arch.SOLUTION: There are provided a method and a device for acquiring, using and displaying information of teeth including information extracted from a three-dimensional (3D) volumetric model of a patient's dental arch. The three-dimensional (3D) volumetric model of the patient's dental arch may include surface (for example, color) information, and information on an inner structure (for example, a near infrared transparency value of the inner structure containing enamel and dentin).SELECTED DRAWING: Figure 1A

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.