25 results about "Tooth color" patented technology

Provided in the present disclosure is an oral cavity examination method, including: acquiring an oral cavity image; performing median filtering and region segmentation operations on the image to obtain a first intermediate image; converting the first intermediate image from an RGB color space to an HSV color space to obtain a second intermediate image; determining a comparison threshold based on a tooth color; and determining a ratio of pixels within the comparison threshold to pixels of the second intermediate image based on the second intermediate image and the comparison threshold. The oral cavity examination method can set different comparison thresholds according to tooth colors of subjects, so as to perform targeted examination conforming to the characteristics of different subjects, making the ratio of the pixels within the comparison threshold to the pixels of the second intermediate image determined based on the second intermediate image and the comparison threshold more accurate and effective than the ratio determined by the conventional method, and thus facilitating subsequent evaluation of oral cavity health condition.

The invention relates to the technical field of marine microorganisms, in particular to application of lactobacillus salivarius NHNK-603 in preparation of products for improving tooth color and gingivitis. The strain provided by the invention is preserved in the China Center for Type Culture Collection, and the preservation number is CCTCC NO: M 2024416. Experiments show; the NHNK-603 has the effects of inhibiting proliferation and biofilm formation of pigment-generating pathogenic bacteria, agglutinating the pigment-generating pathogenic bacteria, inhibiting melanin generation of the pigment-generating pathogenic bacteria, inhibiting hyaluronidase activity of the pathogenic bacteria, promoting growth of gingival fibroblasts, inhibiting gingival cell inflammation and apoptosis induced by the pigment-generating pathogenic bacteria, and inhibiting melanin generation of the pigment-generating pathogenic bacteria. And the product can be used for preparing products for improving tooth color and gingivitis.

1. The name of the design product: auxiliary part and holding part of tooth color selection palette. 2. The use of the design product: the design product as a whole is used as a tooth color selection palette, the claimed part is used as an auxiliary part for imitating gums in the tooth color selection palette, and the holding part for holding the auxiliary part and the color sample with a stick is used. 3. The design points of the design product: the shape of the part other than green. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: the part of the design product is claimed, and the part not claimed is represented in green in the design picture.

This invention relates to the field of medical image processing technology, and proposes an intelligent method for color calibration of dental photographs and an automatic color selection system for prostheses. The method includes: receiving an oral image containing a shade guide and teeth; identifying the shade guide and target teeth in the oral image; obtaining the distorted color value of the shade guide; constructing a color difference conversion model based on the distorted color value and pre-stored standard color values ​​of the shade guide; and performing color correction on the target teeth in the oral image based on the color difference conversion model to obtain a corrected image. This invention solves the problem of tooth color distortion in oral images.

1. Name of the designed product: main body of a tooth color image taking device. 2. Use of the designed product: the designed product is a hand-held tooth color image taking device for taking images of teeth. 3. Design points of the designed product: the shape of the solid line part. 4. Picture or photo best indicating the design points: perspective view 1. 5. Other circumstances or information to be explained: the designed product is a partial design, the solid line part in the drawing is the part to be protected, and the dotted line part in the drawing is the part not to be protected.

This invention relates to the field of medical image processing technology, and more particularly to a method and system for selecting dental restoration materials based on adjacent tooth color extraction. The method includes: acquiring the color information of the abutment tooth to be restored; acquiring the adjacent teeth of the abutment tooth to be restored; determining a target restoration color based on the adjacent teeth; traversing combinations of restoration materials and thicknesses in a material database; calculating the restoration material color corresponding to any combination; overlaying any abutment tooth to be restored with the restoration material using a mask; calculating a predicted restoration color based on the color information of the abutment tooth, the color of the restoration material, and the thickness using a transparency calculation model; calculating the color difference between the predicted restoration color and the target restoration color; and selecting the restoration material and thickness based on a preset color difference threshold and preset multi-objective optimization conditions. Compared to existing technologies, this invention achieves the superposition prediction of restoration color on the abutment tooth, thereby enabling the selection of the restoration.

The invention provides a tooth color recognition method and system based on a deep learning algorithm, a terminal, a medium and a recognition instrument. The method comprises the following steps: collecting tooth images of different angles and different color numbers under natural light illumination; dividing the tooth image into a plurality of tooth areas and extracting colors of middle parts of the tooth areas to make a data set; and inputting the data set into a deep residual network for training to obtain a tooth color recognition model of which the input parameter is the original tooth image and the output parameter is the tooth image marked with the corresponding color number in each tooth area. The method comprises the following steps: making an image data set and training an AI model for identifying tooth colors based on a deep learning algorithm; the trained AI model is embedded into the identification instrument, photographing and tooth colorimetric functions are realized through a button, a color number image after colorimetric can be displayed on a rear-end screen, help is provided for manufacturing a dental restoration, and the product is convenient to use and reliable in efficiency.

The invention relates to the technical field of dental restoration, in particular to a gradient color dental restoration three-dimensional printing method and system. The method comprises the following steps: dividing a restoration model of a target tooth to be restored into a plurality of tooth restoration layers, determining a target color of each tooth restoration layer by taking tooth color change data of a healthy adjacent tooth as a reference, and then sorting the target colors of all the tooth restoration layers according to a rule from light to deep as a printing sequence; and finally, by taking the target color as a printing target, based on a preset color matching and feeding strategy and an exposure control strategy, sequentially performing three-dimensional printing on each tooth restoration layer of the restoration model according to the printing sequence to obtain the gradient-color tooth restoration of the target tooth. Therefore, the gradient-color dental restoration with small color difference with healthy adjacent teeth is obtained, and the restoration effect is good.

The invention discloses a tooth colorimetric spectral imaging method and system based on deep learning, and the method comprises the steps: collecting RGB images and spectral images of teeth and ceramic chip samples with different thicknesses under a multi-light-source condition, and carrying out the preprocessing; constructing a training set and a test set based on the RGB image and the spectral image obtained through preprocessing; a spectrum reconstruction network model based on a U-Net framework is constructed, the main body of the spectrum reconstruction network model comprises a plurality of attention modules connected in series, each attention module comprises a channel self-attention mechanism and a space attention mechanism, the input of the spectrum reconstruction network model is a linear RGB image, and the output of the spectrum reconstruction network model is a reconstructed spectrum image; and training and testing a spectrum reconstruction network model by using the training set and the test set, and performing real-time tooth spectrum image reconstruction by using the trained spectrum reconstruction network model. According to the method, the real reflection spectrum of the teeth can be more accurately recovered, and the colorimetric precision is remarkably improved.

The application belongs to the technical field of denture materials, and particularly relates to a special neutral water-based dyeing solution for full-porcelain dentures, a preparation method and application thereof. The dyeing solution is formed by scientifically compounding a coloring part, a surface modification part and a pH adjusting part, and is a stable, neutral and non-corrosive water-based solution. The technical scheme effectively solves the hidden safety hazards existing in the transportation, storage and use of traditional acid dyeing solution, and effectively reduces the potential influence of the acid dyeing solution on the surface structure and mechanical properties of the full-porcelain denture zirconia restoration. After the full-porcelain denture zirconia restoration is treated by the neutral water-based dyeing solution, excellent coloring effect and high tooth color simulation can be achieved through subsequent sintering, and the color simulation degree and clinical application value of the full-porcelain denture product are significantly improved.

Graphical user interface for editing and viewing an oral health report, allowing input and viewing of patient information, oral health descriptions, oral scanning images, oral models, and selection of tooth shades; reproductions 1.4-1.6, 2.3-2.4, 3.2, 4.3-4.4, 5.5-5.10, 6.7-6.12 are for reference purposes and form no part of the claimed design; the gray rectangular color blocks with diagonal crosses in reproductions 1.1-1.3, 2.1-2.2, 3.1, 4.1-4.2, 5.1-5.4, 6.1-6.6 represent pushed contents and form no part of the claimed design; the “X” in the reproductions represents variable numbers and / or characters and / or symbols; the appearance of the image sequentially transitions between the images shown in reproductions 1.1-1.3, in reproductions 2.1-2.2, in reproductions 4.1-4.2, in reproductions 5.1-5.4, in reproductions 6.1-6.6; the process or period in which an image transitions to another image forms no part of the claimed design; in reproductions 7.1-7.2, the teeth shown with tooth shades, the tooth shades assigned to the teeth, and the color palette and shade numbers displayed in the lower portion of the interface are only for illustration purposes; in Design 1, by clicking the plus button adjacent to "new problem" at the bottom of the interface shown in reproduction 1.2, the interface transitions from reproduction 1.2 to reproduction 1.3 for adding new problems of the patient to the report.

The application is suitable for the technical field of computers, and provides a tooth color identification method based on image processing, comprising: performing segmentation processing on an oral cavity image, and obtaining a single tooth image according to a result of the segmentation processing and the oral cavity image; obtaining a saturation of each pixel point in the single tooth image; determining a target color corresponding to the single tooth image according to the saturation of each pixel point in the single tooth image; and determining a target color number corresponding to the target color, wherein the target color number is a tooth color corresponding to the single tooth image. By taking the saturation of an image color as a parameter for identifying a tooth color to be identified, the application can improve the accuracy of a tooth color identification result, and avoid the problem of low accuracy of tooth color identification caused by the influence of external interference factors such as picture reflection on a tooth image.

The present application relates to the technical field of tooth restoration, in particular to a three-dimensional printing method and system for a gradient color tooth restoration body. The present application divides a restoration body model of a target tooth to be restored into a plurality of tooth restoration layers, determines a target color of each tooth restoration layer by taking tooth color change data of healthy adjacent teeth as a reference, and then sorts the target colors of all tooth restoration layers according to a rule from light to dark as a printing order. Finally, the target color is taken as a printing target, and based on a pre-set color matching supply strategy and an exposure control strategy, each tooth restoration layer of the restoration body model is sequentially three-dimensionally printed according to the printing order to obtain a gradient color tooth restoration body of the target tooth, so that a gradient color tooth restoration body with a smaller color difference from healthy adjacent teeth is obtained, and the restoration effect is better.

1. Name of the product in this design: Electronic device with graphical user interface for electric toothbrush whitening program. 2. Application of this design: This design is intended for use in an electronic device for running programs and displaying a graphical user interface. 3. The key design features of this product are: the graphical user interface display content of the electronic device. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: This design is used in electronic devices to display an electric toothbrush whitening plan and related information in a mini-program. 6. Human-computer interaction method of graphical user interface: The main view interface is the main interface of the user interface. Triggering the "Smart Toothbrush" icon in the main view will jump to the interface change state diagram 1; triggering the "Exclusive Mode" icon in the interface change state diagram 1 will jump to the interface change state diagram 2, which displays various brushing modes; triggering the "Whitening Plan" icon in the interface change state diagram 2 will jump to the interface change state diagram 3, which displays one or more whitening plans; triggering the "Re-formulate Plan" icon in the interface change state diagram 3 will jump to the interface change state diagram 4, which allows for re-formulating or creating a new whitening plan, including determining the current tooth color and setting teeth whitening goals. The "Next" icon in state 4 triggers a jump to state 5 to confirm tooth sensitivity information; the "Next" icon in state 5 triggers a jump to state 6 to confirm the commonly used speed settings of the electric toothbrush. After the user completes information registration and whitening plan settings, the "Generate Plan" icon in state 6 triggers a jump to state 7 to create a whitening plan calendar and display basic information about the whitening plan; the "Sync to Device" icon in state 7 triggers a jump to state 8, where the whitening plan generated in the interface is transmitted to the electric toothbrush via Bluetooth. After the transmission is complete, the user jumps to state 9. 7. Other situations requiring explanation: Other explanation: A single color block in the main view belongs to the content screen.

The invention discloses a colorimetric head, a colorimetric device and a colorimetric system. The colorimetric head comprises a supporting part, a functional part, a first camera module and a second camera module, the functional part is connected with the supporting part, a color measuring module is arranged on the functional part, and the color measuring module is provided with an acquisition end for acquiring tooth colors; the first camera module is arranged on the supporting part and / or the functional part, the lens orientation and the acquisition orientation of the acquisition end point to the same direction, and the first camera module is used for shooting images of the acquisition end in contact with teeth. The second camera module is arranged on the supporting part and / or the functional part and is used for shooting a face and / or tooth image. The colorimetric system comprises a terminal and the colorimetric head, the terminal is in communication connection with the colorimetric head, the colorimetric head transmits a colorimetric result and image data to the terminal, the terminal can effectively combine the colorimetric result and the image data with an oral cavity three-dimensional model scanned by the oral cavity digital impression instrument, and automatic labeling of the colorimetric result to a tooth area corresponding to the three-dimensional model is achieved. According to the invention, high-accuracy automatic tooth color matching is realized, and the colorimetric accuracy and efficiency are improved.

1. Name of the design product: tooth color selection rack 2. Use of the design product: The design product is used for holding a tooth color selection rack with a stick when deciding the color tone of artificial teeth or dental prosthetic devices. 3. Design points of the design product: in the shape as shown in the figure. 4. Picture or photograph best indicating the design points: perspective view. 5. Other circumstances or explanations: The depth of the color shown in the picture is used to determine the shape and gloss of the perspective surface, and does not represent a pattern; the stick insertion port of the inserted tooth color selection rack is obliquely arranged with respect to the extension direction of the back.

The utility model discloses a 3D printed patch guide plate, and relates to the technical field of orthodontics, the 3D printed patch guide plate comprises a patch guide plate body, the patch guide plate body is printed by D, a plurality of notches for observing the attaching condition are formed in the patch guide plate body, one side of the patch guide plate body is adhered with a colored patch, and the colored patch is adhered to the other side of the patch guide plate body. A reinforcing net used for covering the notch and reinforcing the colored patch is fixedly arranged on one side of the colored patch. According to the 3D printed patch guide plate body, veneering bonding of multiple teeth can be completed at the same time, the working efficiency is improved, a doctor can directly observe the bonding condition of the patch guide plate body and the teeth through the multiple notches and judge whether precise bonding in place or not, the multiple notches provide overflow space for resin cement glue when veneering bonding is conducted, and therefore the bonding effect is improved. And after the veneering is adhered, the patch guide plate body can be covered by the colored patch, so that the color of the adhered colored patch is consistent with that of teeth, and the aesthetic property after wearing is improved.

The application discloses a fluorine-added denture resin material for preventing dental caries and a preparation method thereof, and relates to the technical field of denture materials. The fluorine-added denture resin material for preventing dental caries comprises the following components in parts by weight: modified polymethyl methacrylate 59.5-76.5 parts; self-repairing microcapsules 8-10 parts; GA@HBN antibacterial composite material 3.5-4.5 parts; nano ZrO2 22.4-3.6 parts; stabilizer 1-1.2 parts; dispersant 0.16-0.24 parts; compatibilizer 0.25-0.35 parts; initiator 0.7-0.9 parts; and antioxidant 0.08-0.12 parts. The fluorine-added denture resin material for preventing dental caries prepared by the application has the advantages of self-repairing ability against micro-cracks, wear resistance, prevention of dental caries of surrounding natural teeth in an oral environment, antibacterial property, anti-dyeing property, near-natural tooth color and the like.

The utility model discloses a false tooth color coating clamping device, which relates to the technical field of false tooth processing, and comprises a turntable and a clamping mechanism arranged at the top of the turntable and used for clamping false teeth, the clamping mechanism comprises an arc-shaped clamping block fixedly arranged at one side of the top of the turntable and a cam rotationally arranged at the other side of the top of the turntable, a driving mechanism for driving the cam to rotate is arranged in the rotating disc, and the driving mechanism comprises a first rotating rod fixedly arranged in the cam, a worm gear fixedly arranged on the outer wall of the first rotating rod and located in the rotating disc, and a worm rotationally arranged in the rotating disc and connected with the worm gear in a meshed mode. The cam can be driven to rotate by shaking the rocking handle and matching with transmission of the worm gear and the worm, the false tooth can be clamped by matching the tip end with the arc-shaped clamping block after the cam rotates, and the worm gear and the worm have a self-locking function, so that the clamped false tooth can be fixed, the false tooth is prevented from sliding due to external force interference in the coating process, and the coating quality of the false tooth is improved. And the coating is convenient and practical.

The invention belongs to the technical field of false tooth materials, and particularly relates to a neutral water-based staining solution special for all-ceramic false tooth zirconium oxide as well as a preparation method and application of the neutral water-based staining solution. According to the staining solution, a stable, neutral and non-corrosive water-based solution is formed by scientifically compounding a coloring part, a surface modification part and a pH adjusting part. According to the technical scheme, potential safety hazards existing in transportation, storage and use of a traditional acid staining solution are effectively solved, and the potential influence of the traditional acid staining solution on the surface structure and the mechanical property of the zirconia restoration of the all-ceramic false tooth is effectively reduced. The all-ceramic false tooth zirconia restoration treated by the neutral water-based staining solution can realize excellent coloring effect and high tooth color simulation through subsequent sintering, and the color simulation degree and clinical application value of all-ceramic false tooth products are remarkably improved.

The utility model discloses a false tooth colorimetric plate, which comprises colorimetric teeth and a colorimetric plate provided with the colorimetric teeth, each colorimetric tooth comprises a plurality of split tooth end parts and tooth root parts, the number of the tooth end parts and the number of the tooth root parts are both multiple, the colorimetric plate comprises a colorimetric plate I and a colorimetric plate II which are connected in a nested manner, the tooth end parts are arranged on the colorimetric plate I, and the tooth root parts are arranged on the colorimetric plate II. A protruding block is arranged on the side, opposite to the tooth end portion, of the first colorimetric plate, a groove matched with the protruding block is formed in the second colorimetric plate, the tooth end portion and the protruding block are arranged on the same side, the tooth end portion is connected with the first colorimetric plate through a rod, and the colorimetric plates are contained in the containing box. The plurality of tooth end parts and the plurality of tooth root parts are respectively matched with each other, so that the multi-tooth dental implant can be suitable for rich colors of diseased teeth; the bracket is used for obliquely placing the colorimetric plate in the box body, and the end, provided with the colorimetric teeth, of the colorimetric plate is lower than the end, not provided with the colorimetric teeth, of the colorimetric plate, so that direct contact with the colorimetric teeth is avoided during use; when the colorimetric plate I and the colorimetric plate II are embedded, the tooth end part and the tooth root part are in the same plane.

The invention relates to the field of medical treatment, and discloses a portable blowing oral cavity observer, which comprises a host box body for accommodating components; the foot switch is used for generating an airflow control signal; the disposable endoscopic odontoscope is mounted on the oral cavity blowing visible odontoscope observer; the physical keyboard is used for inputting an operation instruction; the touch screen display is used for displaying real-time images, diagnosis results and safety warning; the air pump is used for generating intensity-adjustable airflow; an oral cavity blowing visual mouth mirror observer comprises a master control system, a CMOS camera, a capacitance sensor and a binocular vision module. Through the design of integrating a portable host box body and a detachable mouth probing mirror and matching with an air flow triggering mechanism of a foot switch, real-time image acquisition under single-hand operation is realized, tooth color difference and three-dimensional geometric lesion characteristics are automatically analyzed through an AI diagnosis unit, traditional oral examination depending on experience is converted into automatic quantitative diagnosis, and the accuracy of oral examination is improved. The inspection time is obviously shortened; and the operation threshold is reduced.

The invention provides a pit and fissure sealing agent with a dynamic color indication function as well as a preparation method and application of the pit and fissure sealing agent. The pit and fissure sealing agent is prepared from the following components in parts by weight: 0.001 to 0.02 part of sacrificial color pigment and 0.001 to 0.02 part of base color pigment. According to the pit and fissure sealant provided by the invention, the sacrificial color pigment sensitive to free radicals and the stable base color pigment are adopted, so that color change during an operation is convenient for a doctor to operate, and the color can be distinguished from a tooth color after the operation; by matching with other components of the pit and fissure sealing agent, the composition has high stability, does not fade after long-term use and is convenient for postoperative review.

A parameter recommendation module is used to propose a recommendation for dental restoration material parameters. The recommendation takes into consideration final tooth color influencing factors such as underlying tooth stump color and color of restoration fastening material such that at least one output restoration characteristic value needed to achieve a final user-specific tooth color for at least one tooth layer of the restoration is proposed.

The invention relates to a tooth bleaching agent which is prepared from the following components in percentage by weight: 5%-15% of urea peroxide, 2%-8% of a stable synergist, 1%-5% of a desensitization soothing agent, 3%-10% of a humectant, 0.5%-3% of a thickening agent, 0.1%-0.5% of a preservative, 0.05%-0.2% of essence and a certain amount of deionized water. The invention also relates to a preparation method of the tooth bleaching agent. The tooth bleaching agent disclosed by the invention has the following beneficial effects that the tooth bleaching agent is good in stability, and bleaching components can be prevented from being decomposed in a storage process; the bleaching efficiency is high, and the color of teeth can be rapidly brightened; meanwhile, the irritation is extremely low, tooth sensitivity can be relieved, gingival irritation can be relieved, the use safety and comfort are improved, and the toothpaste is suitable for industrial production and long-term use; according to the technical scheme, the preparation method is simple and easy to implement, mild in process condition and suitable for industrial production.