15 results about "TOOTH SIZE" patented technology

The invention discloses an orthodontic digital intelligent diagnosis method, and relates to the technical field of orthodontics. The method is applied to an oral cavity digital diagnosis system, and comprises the following steps: acquiring oral scanning data of a target patient, and generating an oral cavity three-dimensional model; extracting state information of a plurality of teeth from the oral cavity three-dimensional model, wherein the state information comprises tooth sizes, displacement distances and torsion angles; performing symptom analysis on the state information of the plurality of teeth, and determining a plurality of reference tooth models from the state information; and generating an oral initial diagnosis report of the target patient based on the plurality of reference tooth models. By implementing the technical scheme provided by the invention, the problem that the reference value of an orthodontic initial diagnosis report is relatively low is solved.

The utility model discloses a multipurpose measuring scale for dental diagnosis and treatment, which comprises a measuring scale body and a sliding component, the measuring scale body comprises a horizontal scale, a Y-shaped fork, a side arm and a side stick, the Y-shaped fork is fixed at the upper end of the horizontal scale, and the sliding component comprises a measuring scale sliding block and a sliding block locking screw. The measuring scale sliding block comprises a measuring scale sliding block component A, a measuring scale sliding block component B, a measuring scale sliding block component M and a sliding block assembling screw. The multifunctional measuring device is a single multifunctional measuring device for measuring the length and width of a dental arch, the occlusion horizontal plane of a false tooth, the vertical suction distance, the size of the tooth, the size of an interdental space and the like, and plays an important role in the diagnosis and treatment processes of complete false teeth, immediate false teeth, movable partial false teeth, complete reconstruction, implant support false teeth or fixed complete dental arch repair; the novel multifunctional measuring scale is used for replacing various traditional measuring tools, so that the tool types in dental diagnosis and treatment are greatly simplified.

The utility model relates to the field of loaders, in particular to a shovel tooth clamping tool of a loader. The technical problems that according to an existing clamping tool, due to the fact that the sizes of form relieved teeth are different, the form relieved teeth are prone to shaking or shifting in the installation process through a mismatched hydraulic system, the operation precision and safety are reduced, adaptive equipment needs to be frequently replaced for auxiliary installation when the hydraulic systems with the different form relieved tooth sizes are installed, the complexity of the systems is increased, and the work efficiency is high are solved. And the installation efficiency is reduced. According to the technical scheme, the clamping tool for the bucket teeth of the loading machine comprises a bucket, a clamping installation assembly, a fixing assembly and an auxiliary assembly; the filling plate is used for filling and fitting the shapes and the sizes of the relieved teeth according to the relieved teeth of different thicknesses and sizes, it is ensured that the clamping tool is tightly matched with the relieved teeth, shaking or sliding caused by unstable clamping in the operation process is reduced, the filling plate can play a buffering role, direct pressure and friction to the relieved teeth in the clamping process are reduced, and the clamping efficiency is improved. And the damage risk of the shovel teeth is reduced.

The utility model discloses a soft zipper which comprises a flexible belt and a plurality of zipper teeth, and each zipper tooth is provided with a tooth base, a meshing tooth table, a tooth neck and a tooth head. The two sides of the tooth base are connected with the flexible belt, the tooth neck and the tooth head respectively, the width of the tooth base and the tooth head is larger than that of the tooth neck, and the tooth base and the tooth neck are in smooth transition to form a tooth shoulder; the front side wall and the rear side wall of the tooth neck protrude outwards to form two meshing tooth tables, the meshing tooth tables extend and protrude outwards from the front side wall and the rear side wall of the tooth base, and the side walls, away from the tooth neck, of the two meshing tooth tables are parallel to the vertical face in the length direction. The thickness of the meshed tooth table is smaller than the thickness of the tooth base, the thickness of the tooth neck and the thickness of the tooth head, a biting table groove is formed in the end face of the tooth head, and the proportion of the thickness to the length of a single zipper tooth is 60-76: 100. The proportion well balances the relationship between the size and the mechanical property of the zipper teeth.

The invention discloses a large and small tooth surface local deformation identification system and method based on image processing, and belongs to the technical field of tooth surface local deformation identification. A large and small tooth surface local deformation identification system based on image processing comprises an image acquisition module used for acquiring local image data of a large and small tooth surface from front and side angles in real time, an image analysis module used for performing multi-category integration on images, screening high-quality images, performing noise reduction and enhancement processing and graying the images, and a large and small tooth surface local deformation identification module used for identifying the large and small tooth surface local deformation. And then gear contour key points are extracted to establish an absolute coordinate system, the image processing module compares a received image with original accurate image data to obtain qualified and unqualified image data, and the information output module transmits the qualified and unqualified image data to a display device. According to the large and small tooth surface local deformation recognition system based on image processing, the tooth size and tooth surface local deformation can be quickly recognized in mass production through the system.

The pair of adjustable dental forceps comprises a first forceps body and a second forceps body, the middle positions of the first forceps body and the second forceps body are hinged, and the tail ends of the first forceps body and the second forceps body form an operating end; the pliers further comprise pliers heads, the pliers heads are installed at the head positions of the first pliers body and the second pliers body in a telescopic rotating mode, and each pliers head can be stretched relative to the pliers body or the working angle can be adjusted; and the spacing-adjustable contact head is arranged on the contact surface of the forceps head and the teeth, and the contact surface is adjusted according to the size of the teeth. According to the utility model, the clamping area of the forceps head can be adjusted according to the width of teeth, and the angle and extension length of the forceps head relative to the forceps body can be adjusted, so that the flexibility and efficiency of tooth extraction operation are obviously improved.

This invention relates to the field of dental restoration technology and discloses a method for fabricating a 3D-printed resin filling guide. In clinical practice, the affected tooth is prepared and color matched. Three-dimensional data of the patient's upper and lower jaw dentition and the prepared abutment tooth data are obtained through digital oral scanning, along with the occlusal relationship. The abutment tooth data includes the abutment tooth size, axial direction, and gingival margin morphology. The 3D-printed resin filling guide fabrication method provided by this invention, utilizing digital design and 3D printing technology, creates a resin filling guide that meets the patient's personalized needs. This fundamentally overcomes many drawbacks of existing dental resin restoration techniques, achieving precision, personalization, and minimally invasive dental resin restoration, while improving clinical operational efficiency and patient satisfaction with aesthetic treatment.

The present invention relates to the field of machinery, and in particular to a toothbrush. A wraparound toothbrush capable of maintaining the position of upper bristles comprises an electric toothbrush, the electric toothbrush comprising a brush head, the brush head comprising a brush head handle, the front portion of the brush head handle being provided with an upper brush plate, a front brush plate, and a rear brush plate; the upper brush plate and the front brush plate are connected via a transmission mechanism, the transmission mechanism comprising an elastic connector for resetting the front brush plate, the elastic connector being arranged between the front brush plate and the rear brush plate. Through this design, the present invention provides a wraparound toothbrush capable of maintaining the position of upper bristles, and the teeth cleaning needs of people with different oral cavity and tooth sizes are met through the wraparound effect produced by the bristles on three sides and the adaptive effect of the bristles automatically fitting as the thickness changes from the incisors to the molars; at the same time, the bristles below the upper brush plate are maintained in a relatively middle position on the upper part of the teeth, which is beneficial to the cleaning of the upper surface of the teeth and improves the cleaning effect.

A system for manufacturing a three-dimensional dental laminate according to the present invention includes at least one processor and a memory. The memory stores instructions causing the at least one processor to perform, in response to execution of the instructions, receiving images including a user's teeth, estimating poses of a camera by analyzing the received images, computing sparse 3D points by tracking feature points in the received images and triangulating a three-dimensional position of the feature points based on relative movements among the estimated poses of the camera, generating a three-dimensional tooth modeling file based on the sparse 3D points and adjusting for the size of an actual tooth, generating a three-dimensional dental laminate modeling file based on the adjusted three-dimensional tooth modeling file, and manufacturing a three-dimensional dental laminate based on the generated three-dimensional dental laminate modeling file.

The invention relates to a helical tooth detection mechanism and a detection method. The helical tooth detection mechanism comprises a base; the ring go gauge is connected to the base through a reference seat, the reference seat can move relative to the base in the axial direction of the ring go gauge, the ring go gauge can move relative to the reference seat in the axial direction of the ring go gauge and rotate relative to the reference seat around the axis of the ring go gauge, and an elastic piece and a driving assembly are arranged between the ring go gauge and the reference seat. The ring go gauge overcomes the elastic force of the elastic piece when moving relative to the reference base in the axial direction of the ring go gauge. The driving assembly is used for driving the ring go gauge to rotate relative to the reference base. And the detection assembly is arranged between the reference seat and the ring go gauge, and the detection assembly is used for detecting the axial displacement and the rotation angle of the ring go gauge relative to the reference seat. According to the invention, the detection of the helical tooth size of a part can be completed through one-time reciprocating stroke of the ring go gauge, and the detection efficiency is greatly improved.

The utility model relates to the field of spherical tooth measurement, in particular to a hard alloy spherical tooth size measuring instrument, which comprises an amplifying mechanism, a measuring mechanism and a control mechanism, and is characterized in that the amplifying mechanism comprises a projector for emitting light to spherical teeth to amplify the projection of the spherical teeth; the placing mechanism comprises a placing seat for placing the spherical teeth and a power piece for driving the placing seat to rotate; the scale plate is suitable for receiving the amplified projection of the spherical teeth, and scales are arranged on the surface, facing the spherical teeth, of the scale plate, so that the amplified projection of the spherical teeth is located at the scales when the spherical teeth rotate; a bottom plate, wherein a lens of the projector and the placing seat are on the same straight line; the power piece is a motor; the bottom of the placing seat is connected with a rotating shaft of a power piece, and the power piece is a stepping motor; the placing seat is disc-shaped; and the center of the placing seat is connected with a rotating shaft of the power piece. The utility model provides a hard alloy ball tooth size measuring instrument which reduces errors of measuring ball teeth.

The utility model relates to technical fields, concretely is free end molar implantation positioner, including clamping part and the adjusting part of fixed above clamping part, the clamping part includes the main chuck and the auxiliary chuck of opposite setting, the limiting arm of fixed above auxiliary chuck and the locating arm of fixed in auxiliary chuck side, the limiting arm is L type, one end of limiting arm is above the space between main chuck and auxiliary chuck, be equipped with the locating hole on the locating arm, and the adjusting part is used for controlling the distance between main chuck and auxiliary chuck. This kind of implantation positioner is embraced with adjacent tooth with main auxiliary chuck, cooperates adjusting part and limiting arm, breaks through the limitation of traditional dependence on former implantation, accurately determines the implantation site, reduces the operation risk, promotes the repair efficiency, and simultaneously, its flexible adjustable, quick dismounting characteristics, adapt to different adjacent tooth size, greatly shorten the operation time, significantly enhance clinical operation convenience, also help to reduce the operation risk, bring more safe, more comfortable treatment experience for the patient.

A system generates panoramic images of a patient from multiple two-dimensional x-ray projection images. The system includes an x-ray source, x-ray detector, and x-ray collimator with a variable aperture size. The aperture defines an exposure region on the detector with corresponding variable size. A controller defines a focal curve relative to the patient's oral cavity, following the jawbone shape with molar and incisal regions. The focal curve has predefined thickness exceeding the teeth size to be imaged. The controller acquires images by rotating the source, collimator, and detector around the patient's head along a predefined trajectory, with the collimator positioned between the patient and source. During acquisition, the aperture width continuously varies, using a wider aperture for the molar region and narrower aperture for the incisal region. Simultaneously, the detector's readout region continuously varies horizontally to equal or exceed the variable exposure region size.

A system for manufacturing a three-dimensional dental laminate according to the present invention includes at least one processor and a memory. The memory stores instructions causing the at least one processor to perform in response to execution of the instructions, receiving images including a user's teeth, estimating poses of a camera by analyzing the received images, computing sparse 3D points by tracking feature points in the received images and triangulating a three-dimensional position of the feature points based on relative movements among the estimated poses of the camera, generating a three-dimensional tooth modeling file based on the sparse 3D points and adjusting for the size of an actual tooth, generating a three-dimensional dental laminate modeling file based on the adjusted three-dimensional tooth modeling file, and manufacturing a three-dimensional dental laminate based on the generated three-dimensional dental laminate modeling file.

The present invention relates to the field of machinery, and particularly to an electric toothbrush head. An electric toothbrush head using a spring includes a toothbrush head, which comprises a toothbrush handle, a front brush plate, a rear brush plate, and an upper brush plate. Through this design, the present invention provides an electric toothbrush head using a spring. By driving the three-sided bristles of the toothbrush head by a motor, the cleaning effect of teeth is improved; and through the surrounding effect generated by the three-sided bristles and the adaptive effect of the automatic fitting of the bristles with the change of the thickness from the incisors to the molars, the tooth cleaning needs of people with different oral cavities and tooth sizes are met. The design of the three-sided bristles solves the cleaning problem of the areas that are not easily brushed on the inner side of the teeth, avoids the generation of various bad brushing habits, and users no longer need to actively change the position of the toothbrush head to find the cleaning points. Only by pushing the toothbrush head can the whole brushing process be completed, simplifying the brushing process and improving the brushing efficiency.