30 results about "Tooth site" patented technology

A tooth implant is used to replace a front tooth which has been lost or extracted. The implant comprises an anchoring part which is provided with an outer thread and which is applied in a recess formed in the jaw bone at the site of the lost or extracted tooth, a spacer sleeve part intended to extend through the gum of the jaw bone, and a prepared or preparable part which adjoins the spacer sleeve part and is intended to support a dental crown, for example. The anchoring part, the spacer sleeve part and the prepared or preparable part are arranged in one piece, the configuration and direction of the prepared or preparable part being substantially adapted or adaptable to the anatomy of the lost or extracted tooth, for example to the inner arc-shaped surface, and to the direction of said tooth. The one-piece implant affords a rapid and less traumatic replacement function compared to previously used three-part bridges.

A reshapable retention device for insertion at a dental site and contact with adjacent dental surfaces, for the controlled delivery to the dental site of at least one material having a predetermined intraoral activity. The retention device comprises at least one matrix containing the material. The retention device is adapted for physically affixing at the dental site for at least a predetermined time period correlated to the delivery of a predetermined portion of the at least one matrix to the dental site in a controlled single, bi or multiphase pattern. The retention device comprises a first configuration in which the overall dimensions of the retention device are larger than at least one dimension of the dental site. The first configuration is reshapable to a second configuration in which at least one dimension of the retention device is reduced to enable physically affixing the retention device at the dental site. In the second configuration the retention device comprises a predetermined shape having contours for affixing at the dental surfaces.

The present invention relates to a device for scanning a split-cast model, said split-cast model covering the area of a plurality of tooth sites and comprising a plurality of model parts, said device comprising: an optical scanning system (2) for one or for a plurality of split-cast models having a scanning area (3) with a width between 5 mm and 100 mm, the scanning system being adapted to be used for acquiring first data from a survey scan covering a plurality of model parts and second data from an individual scan covering only one model part, said first and second data representing the model with different / identical resolutions and / or different / identical completeness, a memory means for storing at least said first and second data, means for 3D matching said first and second data, a base plate, and further comprising a holding device for a split-cast model and / or individual model parts, which is adapted to be arranged on said base plate. In addition, the present invention relates to a device for scanning a split-cast model comprising a plurality of model parts, said device comprising a scanning system (2) for scanning the split-cast model, including a scanning area and a holding device (33) which is capable of holding a split-cast model as well as a model part. Furthermore, the present invention relates to a scanning device with a loading unit.

An oral cavity cleaning device comprises a machine shell (1), the whole machine shell (1) is of a box body structure with openings formed in the two ends, an end cover (2) matched with the machine shell (1) in a covering and buckling mode is arranged at one end of the machine shell (1), and a driving device and an oral cavity cleaning device are installed in the machine shell (1); the driving device comprises a motor (3) and a swing seat (7) driven by the motor (3), a crank (4) is mounted on a power output shaft of the motor (3), and a shaft rod (5) capable of being rotationally connected andmatched with the crank (4) is mounted at the end of the crank (4) in the radial direction. The device is convenient to operate, the cleaning and nursing operation of the coated tongue and the tooth part can be completed at a time, and the overall nursing efficiency is greatly improved.

The invention relates to the technical field of oral health and sanitation, and discloses a three-brush combined rotating type toothbrush head, which comprises brush heads, a protective cover and a transmission device. The brush head is cylindrical, bristles are arranged on the cylindrical surface of the brush head, and rotating shafts are arranged at the two ends of the brush head. Wherein the three brush heads are respectively a top brush, a left side brush and a right side brush, the axes of the brush heads are parallel to one another, and the three brush heads are arranged in a delta shape; the protective cover is a U-shaped curved surface; three pairs of shaft sleeves are arranged at two ends of the protective cover and correspond to the rotating shafts of the three brush heads respectively; a left brush and a right brush are arranged at the opening of the protective cover; a top brush is arranged at the bottom of the protective cover; a connector is arranged at the end of the rotating shaft at the bottom of the top brush, and a transmission device is arranged among the three brush heads. The toothbrush head has the advantages that the arrangement mode of the bristles meets the ergonomic requirements of the teeth, the gingiva is not damaged, the joint part of the gingiva and the teeth is uniformly stressed, bruising grooves are not formed, three surfaces of the teeth are simultaneously cleaned, the force of each bristle contacting the teeth is stable, the contact is comfortable, and the cleaning efficiency is high.

The invention relates to the technical field of medical instruments, in particular to a radio frequency treatment guide plate for trigeminal nerve treatment, and aims to overcome the defects that in the prior art, the puncture direction and depth are determined by means of anatomical mark points of a human body, the accuracy is poor, the effect is unstable, complications are prone to occurring, and a patient is injured to a certain extent due to repeated fluoroscopy during an operation. According to the technical key points, the equipment comprises an occlusion plate which is arranged in a semicircular shape and corresponds to the tooth part of a patient in shape for occlusion and fixation to realize positioning; a positioning column provided with a positioning hole, wherein the positioning hole corresponds to the position of the nose tip of the patient so as to detect the positioning accuracy; an injection channel which is located on one side of the occlusion plate and is 20-30 mm away from the mouth corner, wherein the injection channel has the approach direction reaching the skull base oval hole and is used for enabling the injection needle to reach the trigeminal ganglion through guiding puncture of the injection channel; and a connecting part, wherein one end of the connecting part is connected with the injection channel, and the other end is connected with the joint part of the occlusion plate and the positioning column, so that the whole treatment guide plate is integrally formed.

A method for site-specific detection and early diagnosis of periodontal disease using periodontal pocket fluid biomarkers is disclosed.

The invention discloses a guide plate positioner of an implant surgery. The positioner comprises a 'pentagram' positioning faceplate. The faceplate is used as a body which is connected with five connecting rods. An included angle between every two neighboring connecting rods in the five connecting rods is 72 degrees. The tail end of each connecting rod in the five connecting rods is provided witha measuring scale. The dimensions of the measuring scales are different. The connecting rods are carved with dimension numerical values corresponding to the measuring scales. The positioner is mainlyused for accurately positioning the implant position of neighboring tooth sites of an underjaw alveolar bone by an oral implantology doctor in the clinic implant surgery process at any time, accurately implanting the implant, and providing the site support for the later implant restoration beauty and function.

The invention provides a tooth preparation undercut detection device. The tooth preparation undercut detection device comprises a horizontal guide rod, a left arm, a right arm, a slider, a positioningblock, a measuring pin and a positioning pin. One end of the left arm is movably connected with the slider through a connector, the other end of the left arm is connected with an end of the right arm, the other end of the right arm is connected with the positioning block, the positioning block is fixed to one end of the horizontal guide rod, the other end of the horizontal guide rod is movably passed through the slider, the lateral side of the slider is provided with a limiting block, the limiting block is provided with a through hole, the measuring pin is passed through the through hole, anda top plate of the slider is provided with an elastic limiting rod and a rigid limiting rod. The tooth preparation undercut detection device has the advantages that taking a mold to duplicate a modelis not required, time is saved, whether a preparation has an undercut can be quickly detected, and the device is suitable for any tooth site and can be extended to any position with operational spacelimited, such as a posterior tooth; ink marking on the measuring pin enables the position of the undercut in a tooth to be detected and marked, and indicating can be achieved during continual tooth preparation.

The invention provides a lifting structure. The lifting structure comprises a column piece and a connecting device connected to the column piece in sliding and matched manners. The connecting device comprises a body and a locking assembly arranged on the body. The locking assembly comprises a pin frame, a triggering piece, a transmission connecting piece, a buckling piece and a rack arranged on the column piece. The pin frame is arranged on the body. The triggering piece is connected with the pin frame in a matched manner. The transmission connecting piece is connected to the buckling piece. One end of the buckling piece is provided with a buckling portion. After the triggering piece is stressed, the triggering piece can move and push the transmission connecting piece to move, so that the buckling piece is driven to move, and then the buckling portion of the buckling piece is inserted into the space between two adjacent tooth sites of the rack.

A reshapable retention device for insertion at a dental site and contact with adjacent dental surfaces, for the controlled delivery to the dental site of at least one material having a predetermined intraoral activity. The retention device comprises at least one matrix containing the material. The retention device is adapted for physically affixing at the dental site for at least a predetermined time period correlated to the delivery of a predetermined portion of the at least one matrix to the dental site in a controlled single, bi or multiphase pattern. The retention device comprises a first configuration in which the overall dimensions of the retention device are larger than at least one dimension of the dental site. The first configuration is reshapable to a second configuration in which at least one dimension of the retention device is reduced to enable physically affixing the retention device at the dental site. In the second configuration the retention device comprises a predetermined shape having contours for affixing at the dental surfaces.

The invention relates to a dental X-ray machine system based on a multi-shaft electric mechanical arm, and belongs to the technical field of medical instruments. The dental X-ray machine system comprises a patient seat, a running rail, an X-ray host, a display, a sensor, a mechanical arm, a bulb head, a camera and a sensor shooting support, wherein the mechanical arm corresponding to a patient seat is connected to the X-ray host; the bulb head is arranged at the tail end of the mechanical arm; the camera is connected on the bulb head; the sensor shooting support is arranged at the tail end ofthe mechanical arm; the sensor shooting support is provided with a bulb head aligner and the sensor; and the sensor and the camera are connected with the display. According to the invention, the support frame of the dental X-ray machine system is changed into the mechanical arm, so that the problem of manual alignment is solved, and operation flow is simplified. A dentist can more conveniently andaccurately shoot images of tooth parts, can conveniently know conditions of teeth, and thus provides more treatment schemes.

A method of referencing historical scan data during an intraoral scan session includes receiving, by a processing device, a plurality of intraoral images of a dental part during the intraoral scan session; determining, by the processing device, that a first intraoral image of the plurality of intraoral images does not satisfy a registration criterion relative to any other intraoral image of the plurality of intraoral images; determining, by the processing device, a historical template of the presence of the tooth part, the historical template being a virtual model of the tooth part generated from additional intraoral images taken during a previous intraoral scanning session; and registering, by the processing device, a first intra-oral image of the plurality of intra-oral images to one or more remaining intra-oral images of the plurality of intra-oral images in a three-dimensional space according to the historical template, the first intra-oral image being associated with a first region of the tooth part, the first region being non-overlapping with a second region of the tooth part, the second region is associated with one or more remaining intraoral images. By adopting the scheme of the invention, the intraoral scanning efficiency and accuracy can be improved.

The invention discloses a novel jaw plate with self-formed teeth. The novel jaw plate comprises a jaw plate body, wherein the working surfaces of the jaw plate are planes; wear-resistant reinforcing bodies are embedded in the jaw plate body corresponding to the working surfaces; and the positions of the wear-resistant reinforcing bodies corresponds to the tooth top positions of the working surfaces of an original jaw plate. The thicknesses of the two wear working surfaces of the jaw plate are set to be the largest thickness of teeth of a normal jaw plate in advance, so that the effective wearvolumes of the wear working surfaces of the jaw plate are increased. Then, the wear-resistant reinforcing bodies are embedded in the tooth parts of the two flat wear working surfaces of the jaw plate,and the wear resistance difference between a jaw plate substrate and the wear-resistant reinforcing bodies is utilized to enable the substrate at the tooth bottom of the original jaw plate to sink due to wear when the jaw plate works normally. The tooth top part of the original jaw plate is slightly worn and sunken due to high wear resistance of the wear-resistant reinforcing bodies, so that thetooth bottom and the tooth top of the jaw plate are gradually formed along with the prolonging of the working time of the jaw plate, and the service life of the jaw plate is prolonged.

A surgical device for identification of a surgical site of interest, such as a craniofacial or dental site (root apex of an identified tooth), and a method for using the device is provided. The device includes a perimeter bar and a plurality of intermediate cross bars arranged in a grid structure. The device can be used during a surgical procedure requiring enhanced precision, such as during an endodontic surgical procedure, by positioning the device next to a patient's tooth and capturing a CBCT image, the CBCT image being used to identify a drilling location. The device can be repositioned alongside the patient's tooth, and used to identify an accurate drilling position.

In a method of generating a virtual 3D model of a dental site, scan data comprising a plurality of images of a dental site is received during an intraoral scan. An analysis of an image is performed. A representation of a foreign object possibly with known properties is identified in the image based on the analysis. A virtual 3D model of the dental site is generated based on the plurality of images. The image and / or the virtual 3D model of the dental site is modified by adding additional data about the foreign object to or removing data for the foreign object from the intraoral image and / or the virtual 3D model. If the image is modified, it may be modified prior to generation of the virtual 3D model, and the virtual 3D model may be generated using the modified image.

A surgical device for identification of a surgical site of interest, such as a craniofacial or dental site (root apex of an identified tooth), and a method for using the device is provided. The device includes a perimeter bar and a plurality of intermediate cross bars arranged in a grid structure. The device can be used during a surgical procedure requiring enhanced precision, such as during an endodontic surgical procedure, by positioning the device next to a patient's tooth and capturing a CBCT image, the CBCT image being used to identify a drilling location. The device can be repositioned alongside the patient's tooth, and used to identify an accurate drilling position.

Methods and systems for marking and / or correcting edge lines and / or other features of a dental part are described. In one example, a three-dimensional model of a dental part is generated from intraoral scan data of the dental part, the three-dimensional model including a representation of a preliminary tooth. An image of the prepared tooth is received or generated, the image including the height map. Data from an image is processed using a trained machine learning model that has been trained to identify edge lines of a prepared tooth, where the trained machine learning model outputs a probability map that includes, for each pixel in the image, a probability that the pixel depicts an edge line. The three-dimensional model of the tooth part is then updated by marking edge lines on the representation of the prepared tooth based on the probabilistic map.

The invention provides a preparation method for a composite jaw plate of a jaw crusher. The preparation method comprises the following steps: (1) preparing a casting mould; (2) placing a profiling reinforcement body containing ceramic particles at the position, corresponding to a worn area of a jaw plate, of the casting mould; (3) pouring molten high manganese steel or alloy steel into the casting mould, cleaning the solidified and cooled molten steel, and removing a casting head and burrs to obtain a composite jaw plate, wherein the matrix of the jaw plate is made of high manganese steel or alloy steel, and ceramic particles are composited in dental parts of a seriously impacted and worn area of the jaw plate; (4) performing heat treatment on the composite jaw plate. In order to overcome the defects of low wear resistance and non-uniform wear in the conventional jaw plate made of a single material, the composite jaw plate is prepared; the ceramic particles are composited in the dental parts of the seriously impacted and worn area of the jaw plate, and the substrate of the composite jaw plate is made of excellent-toughness high manganese steel or alloy steel, and subjected to the heat treatment, so that the coordination and unity of high toughness and wear resistance of the jaw plate can be realized, and the uniform wear of the jaw plate can be guaranteed; the wear resistance of the composite jaw plate is 2-4 times of that of a single substrate.

The invention discloses a full-automatic tooth welding machine. The machine is characterized in that a saw blade on a feeding frame assembly is taken out through a blade loading and unloading mechanical arm assembly and installed on a transverse movement saw blade suction disc assembly, the transverse movement saw blade suction disc assembly transversely moves to the position below a longitudinalblade pressing mechanism, a saw blade rotation driving device arranged on the transverse movement saw blade suction disc assembly drives the saw blade to be rotated by a set angle, a positioning mechanism limits saw blade tooth sites, a transverse blade pressing mechanism fixes the saw blade in the transverse direction, a saw blade bracket mechanism and the longitudinal blade pressing mechanism fix the saw blade in the longitudinal direction, and a rear positioning mechanism is reset; and meanwhile, a sorting disc mechanism feeds alloy tool bits to a conveying mechanism to be sorted, qualifiedalloy tool bits are clamped by a conveying clamp mechanism to be conveyed to the position below a dispensing mechanism for dispensing, the conveying clamp mechanism feeds dispensed alloy tool bits into a saw blade welding position to be reset, a welding wire conveying mechanism conveys welding wires, and a welding mechanism welds the alloy tool bit to the saw blade. The full-automatic tooth welding machine is simple in structure, convenient and fast to operate and high in automation degree.

The invention provides a lifting structure. The lifting structure comprises a column piece and a connecting device connected to the column piece in sliding and matched manners. The connecting device comprises a body and a locking assembly arranged on the body. The locking assembly comprises a pin frame, a triggering piece, a transmission connecting piece, a buckling piece and a rack arranged on the column piece. The pin frame is arranged on the body. The triggering piece is connected with the pin frame in a matched manner. The transmission connecting piece is connected to the buckling piece. One end of the buckling piece is provided with a buckling portion. After the triggering piece is stressed, the triggering piece can move and push the transmission connecting piece to move, so that the buckling piece is driven to move, and then the buckling portion of the buckling piece is inserted into the space between two adjacent tooth sites of the rack.

The invention relates to the technical field of stroke treatment, and discloses an intravenous thrombolysis system for one-stop multi-mode image stroke treatment, which comprises a sickbed, a tooth wrapping module and a bleeding condition detection module, the tooth wrapping module comprises an upper tooth socket, a lower tooth socket and two connecting soft blocks symmetrically fixed between the upper tooth socket and the lower tooth socket, and the upper tooth socket and the lower tooth socket wrap upper teeth and lower teeth of a patient respectively. Saliva generated in the oral cavity of a patient and blood exuded from the tooth part can flow into the upper tooth socket and the lower tooth socket respectively, and mixed liquid of the saliva and the blood exuded from the tooth part can permeate into the outer test strip along the guide test strip roll, so that the guide test strip roll and the outer test strip slowly become a red-doped state; a caregiver can know the bleeding condition of the tooth part of the patient by scanning the face of the patient, so that medical staff can treat the patient in time to ensure the safety of the patient in the intravenous thrombolysis process.