1346 results about "Dental Gingiva" patented technology

The invention relates to the technical field of tooth diagnosis, in particular to a periodontal disease accurate quantitative evaluation method based on an IOS image and a CBCT image, and the method comprises the following steps: carrying out the image segmentation of an intraoral scanning IOS image, so as to obtain an IOS segmentation result of each tooth; performing image segmentation on the CBCT image to obtain a CBCT segmentation result of each tooth; preprocessing and registering the IOS segmentation result and the CBCT segmentation result to obtain a data fusion model; obtaining a gingival contour and a tooth long axis according to the data fusion model, obtaining gingival contour points according to the gingival contour, obtaining an alveolar bone contour on the alveolar bone along the direction of the tooth long axis by the gingival contour points, and obtaining a GBD distance; and evaluating the periodontal disease according to the GBD distance. According to the method, the data fusion model is obtained according to the IOS segmentation result and the CBCT result, the gingival contour and the tooth long axis are obtained through the data fusion model, and the GBD distance between the gingival contour and the alveolar bone contour is measured in the direction of the tooth long axis so as to evaluate the health condition of the periodontal disease.

The invention provides a preparation method and application of casei paracasei IOB413 after-generation powder, and relates to the field of microorganisms. Tartary buckwheat is used as a solid-state fermentation culture medium, and the lactobacillus paracasei IOB413 is fermented and then crushed to prepare the lactobacillus paracasei IOB413 after-generation powder with high flavone content. The flavonoid content of the metagenic powder prepared by the method is far higher than that in tartary buckwheat and casei paracasei IOB413, the levels of tumor necrosis factor alpha (TNF-alpha) and interleukin (IL-6) can be reduced, the level of anti-inflammatory factor interleukin (IL-10) can be increased, the gingival index and the dental plaque index can be reduced, the growth of streptococcus mutans can be inhibited to a certain extent, and the metagenic powder can be used for preventing and treating the dental plaque. The oral micro-ecology is improved.

The invention provides an intelligent toothbrush based on AI visual identification and an oral health assessment method, and relates to the technical field of artificial intelligence and computer vision. The intelligent toothbrush based on AI visual identification and the oral health assessment method comprise the following steps: S1, based on a built-in multispectral camera of the intelligent toothbrush, dynamically adjusting illumination parameters of different oral regions by adopting a visible light and near-infrared bimodal synchronous acquisition algorithm and through a self-adaptive exposure compensation technology, high-resolution images and transmission data of tooth surfaces and gingival lines are obtained, and a multi-mode oral cavity image data set is generated. Illumination parameters are dynamically adjusted through a multispectral camera to obtain high-resolution bimodal data, the focus detection precision is improved in combination with cross-modal feature fusion, the problem that traditional single-modal imaging is insufficient in early-stage dental caries recognition is solved, and the accuracy of early-stage dental caries recognition is improved based on laser radar point cloud complementation and a three-dimensional surface reconstruction technology. And mapping the two-dimensional focus label into a dynamic three-dimensional plaque distribution model.

The invention discloses a tooth intelligent segmentation and parameterized bionic reconstruction method fusing multi-modal data, and belongs to the field of artificial intelligence and computer-aided biomedical engineering. The method comprises a CBCT intelligent segmentation module, an intraoral scanning intelligent segmentation module, an internal tissue segmentation module, a point cloud generation registration module and a parameterized bionic reconstruction module. The point cloud generation registration module further comprises a point cloud generation sub-module and a point cloud registration sub-module; the parameterized bionic reconstruction module further comprises a dentin reconstruction sub-module, a cancellous bone reconstruction sub-module and a gingival reconstruction sub-module. The invention aims to realize tooth semantic segmentation, point cloud reconstruction and parameterized bionic modeling of an organization structure under cross-modal data fusion, and provides high-precision bionic internal structure information for teeth in combination with an artificial intelligence model and parameterized modeling.

The invention discloses a lactobacillus delbrueckii subsp. Lactis TG001 and application thereof in improving oral health, and belongs to the technical field of probiotic application, the preservation number of the lactobacillus delbrueckii subsp. Lactis TG001 is CCTCC NO: M 20241941, the preservation place is China Center for Type Culture Collection in Wuhan, and the preservation date is September 9, 2024. The lactobacillus delbrueckii subsp. Lactis TG001 has a good inhibition effect on common oral pathogens such as streptococcus mutans and porphyromonas gingivalis, particularly can inhibit the growth of cariogenic bacteria streptococcus mutans by generating hydrogen peroxide and remove biofilm formation, and has good tolerance to antibacterial substances in an oral environment. Therefore, the oral cavity diseases such as dental caries, periodontitis and ozostomia can be prevented, the micro-ecological environment of the oral cavity is effectively improved, meanwhile, the peculiar smell of the oral cavity is relieved, and good application prospects are achieved in preparation of products for preventing and / or treating the oral cavity diseases such as dental caries and periodontitis.

The invention relates to the technical field of oral implantation monitoring, and discloses a monitoring method for analyzing oral implantation health based on using images. The method comprises the following steps: acquiring an optical image data sequence of an oral implanting region by adopting optical scanning equipment, constructing a three-dimensional oral tissue model containing gingival contour features and an implant position, and identifying actual position distribution information of an implant in gingival tissue; and extracting an implant health index set comprising an implant marginal definition value, a surrounding gingival red and swollen area proportion and a gingival atrophy degree value. When any index exceeds a preset health threshold interval, abnormal early warning information is generated, scanning parameters are dynamically adjusted, and images are collected again for iterative monitoring. According to the method, dynamic and accurate monitoring of oral implant health can be realized, health abnormity of the implant can be found in time, and support is provided for long-term health maintenance of the implant.

The invention discloses an oral care desensitization paste and a preparation method thereof, and mainly relates to the technical field of dental medicines. The oral care desensitization cream is prepared from the following components: bioactive glass, strontium chloride, sodium chloride, silicon dioxide, sodium carboxymethyl cellulose, polyethylene glycol 400, a xanthan gum solution, sodium lauryl sulfate, sodium lauroyl sarcosinate, titanium dioxide, beta-glucan, saccharin sodium salt, sorbitol, methylparaben, propyl hydroxybenzoate, edible essence and water. Compared with the prior art, the oral care desensitization paste disclosed by the invention can be used for sealing dentinal tubules and treating hemodia; the traditional Chinese medicine composition can also be used for treating plaque gingivitis, relieving and reducing gingival bleeding and inhibiting and reducing dental plaque; and meanwhile, the condition of mistakenly swallowing and eating in the using process is reduced.

An omni-abutment includes (i) an apical connection portion that mates / attaches with the receiving portion on a corresponding implant; and (ii) a coronal superstructure. The dental abutment provides features that are not currently found in abutments on the market, allowing the abutment to be used as a key foundation for scanning, impression taking, stability testing, and much more which ultimately would lead to an easier restorative process and fabrication of a dental prosthesis. The abutment could also be used for fabrication of a final prosthesis. The abutment may include alignment indents or protrusions in a platform thereof, internal grooves (e.g., square or rounded) as a tri-lobe or other configuration in the central axial hollow channel, recesses (e.g., divots, grooves) in the exterior periphery for increased adhesion to a gingival healing cuff, internal threading in the hollow channel, and a hex, NC or other connection at the apical connection portion.

The present invention is related to a dental device (1) intended to cover at least part of a teeth (2) and / or at least part of gums (3) or other surfaces of a mouth for repositioning or retaining said teeth (2) and optionally said gums (3) or other surfaces of the mouth, said dental device (1) comprising a channel (7) provided in a main body (31; 40, 42) of the dental device (1) and having at least one opening (4, 5) to the exterior. The present invention is also related to a method of manufacturing said dental device (1) by additive manufacturing and to methods for circulating a substance and / or saliva and oxygen through the dental device (1) in view of releasing said substance and / or saliva and oxygen inside the mouth.

The invention provides a child oral cavity detection method and system based on image recognition, and relates to the field of medical detection. The child oral cavity detection system based on image recognition comprises an image acquisition module used for shooting parts of teeth and gingiva in the oral cavity of a child; the image preprocessing unit is used for denoising the acquired image and enhancing preprocessing operation so as to improve the accuracy of subsequent image recognition; the image recognition module is used for analyzing the preprocessed image by adopting a deep learning algorithm; the data analysis and diagnosis unit is used for carrying out comprehensive analysis according to the image recognition result in combination with oral health historical data of the children and giving diagnosis suggestions; the user interaction interface allows doctors or parents to check detection results, historical records and diagnosis suggestions and provides system setting and operation interfaces. Through the automatic image acquisition and recognition process, the time required by manual examination of a doctor is greatly shortened, and the overall detection efficiency is improved.

The invention relates to the technical field of three-dimensional reconstruction, and provides a three-dimensional reconstruction method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a first image frame set of an oral cavity in a first state, and the oral cavity in the first state represents that at least one actual scanning rod is installed in the oral cavity; identifying a scanning rod area of each image frame in the first image frame set; and based on the feature information in the scanning rod region, splicing the plurality of image frames in the first image frame set, and reconstructing to obtain target three-dimensional data corresponding to an actual scanning rod in the oral cavity. According to the method, splicing is carried out based on the rigid structure, the influence of anatomical structures (such as gingiva, lip and tongue) in the image frame on the splicing precision can be reduced, and the overall precision of three-dimensional reconstruction can be improved.

A method and a system for planning an orthodontic treatment are provided. The method comprises: acquiring an arch form 3D digital model including a representation of the given tooth in a current position thereof within a subject's gingiva; determining an initial crown reference point and an initial root reference point; obtaining a target position of the given tooth within the arch form 3D digital model; determining a number of steps for the given tooth to displace from the current position to the target position thereof in the course of the orthodontic treatment; and storing data indicative of the number of steps associated with the given tooth for use in the planning the orthodontic treatment.

The luminous dental floss of the present invention includes dental floss, a lighting system and a handle. The dental floss is detachably connected to the handle; the lighting system includes a light source system, a circuit system, a switch and a power supply system; the light source system is connected to the power supply system through the circuit system; the circuit system and the power supply system are installed in the handle; the switch is installed on the handle. The illumination light emitted by the light source system can illuminate the oral cavity. In particular, an observation window is designed on the luminous dental floss of the present invention. During use, under the illumination of the lighting system, the process of the dental floss entering the tooth gap can be directly observed, which is convenient for cleaning and effectively avoids accidentally injuring the gums.

The invention discloses a high-precision and automatic dental crown generation method. The method comprises seven steps of oral cavity three-dimensional data acquisition, full-mouth tooth semantic segmentation, upper and lower jaw point cloud precise registration, abutment and associated gingiva precise segmentation and trimming, abutment surrounding environment multi-tissue segmentation, neck-edge line secondary precise detection, and dental crown generation and multi-dimensional refinement. The method comprises the steps of oral cavity three-dimensional data acquisition, full-mouth tooth semantic segmentation, upper and lower jaw point cloud precise registration, abutment and associated gingiva precise segmentation and trimming, abutment surrounding environment multi-tissue segmentation, neck-edge line secondary precise detection and dental crown generation. Through combination of deep learning and a point cloud algorithm, high-precision segmentation of teeth and gingiva and precise reduction of an occlusion relationship are realized, an oral anatomical feature library and a clinical repair standard are fused, and through multi-dimensional fine adjustment optimization, a dental crown 3D model which is high in fitting degree, harmonious in occlusion and capable of meeting clinical requirements is generated. The method is full-process automatic, greatly improves efficiency, reduces operation threshold, reduces material waste and diagnosis and treatment cost, remarkably improves repair success rate, and is suitable for various oral repair scenes.

The invention discloses an oral care composition containing ampelopsis japonica polysaccharide and application of the oral care composition in inhibiting gingival bleeding. The oral care composition comprises ampelopsis japonica polysaccharide and an orally acceptable carrier, wherein the pH (Potential of Hydrogen) range of the oral care composition is 5.9 to 7.7. The invention also discloses an application of the ampelopsis japonica polysaccharide in the oral care composition for inhibiting gingival bleeding. The invention discloses application of silicon dioxide with a high oil absorption value in an oral care composition for improving the gingival bleeding inhibiting effect of ampelopsis japonica polysaccharide. The combination of the high-oil-absorption-value silicon dioxide and the low-oil-absorption-value silicon dioxide is applied to the oral care composition for improving the gingival bleeding inhibiting effect of the ampelopsis japonica polysaccharide; the invention further discloses application of sorbitol in the oral care composition for improving the effect of inhibiting gingival bleeding by the ampelopsis japonica polysaccharide. The oral care composition has a hemostatic effect and can effectively solve the problem of gingival bleeding.

The invention belongs to the technical field of three-dimensional point cloud processing, and particularly discloses an automatic tooth segmentation method and system for oral cavity scanning point clouds, and the method comprises the following steps: collecting and preprocessing dentition three-dimensional point clouds, extracting point cloud features containing coordinates and normal directions, and constructing a neighborhood structure; setting a first-stage multi-branch network, and performing tooth and gingiva coarse segmentation and instance initial clustering on the point cloud; setting a second-stage semantic refinement network, and carrying out local cutting on the original point cloud; setting a boundary detection and boundary offset network to enhance a tooth contact area, and refining a boundary instance by clustering to obtain a boundary enhanced instance tag; and performing label fusion, and propagating the fused label to the original high-resolution point cloud through a nearest neighbor algorithm to obtain a final semantic label and a final instance label. By adopting the technical scheme, high-precision instance-level segmentation of the complete dentition point cloud is realized through semantic segmentation, boundary detection and clustering cooperative work based on a biased field.

A method for measuring periodontal disease and treating diseases associated therewith includes: obtaining B-mode ultrasound images of a dentition and periodontium of a patient; identifying gingival margin (GM), alveolar bone crest (ABC), cementoenamel junction (CEJ), periodontal ligament (PDL), and gingival edge (GE) biomarkers on the B-mode ultrasound images, the GE biomarker being a part of periodontal soft tissue most distal from a tooth surface; evaluating a metric associated with periodontal disease using one or more of the GM, ABC, CEJ, PDL and GE biomarkers and based at least in part on the evaluating, performing an act that implements and / or adjusts a therapeutic treatment of a periodontal disease.

The utility model provides a toothbrush head and an oral care device. The toothbrush head comprises a plurality of groups of bristle components, a soft rubber part and a hard brush handle, the bristle assembly comprises bristle bundles and a fixing ring, the bristle bundles comprise free ends and fixed ends, the bristle bundles are arranged in the fixing ring in a penetrating mode, the fixed ends are exposed to the side, away from the free ends, of the fixing ring, the fixed end of any bristle bundle is integrally formed, and the fixed ends of the adjacent bristle bundles are arranged at intervals; the fixing rings are arranged at intervals and connected with the hard brush handle through a soft rubber piece formed through injection molding. According to the toothbrush head, the bristle bundles of the toothbrush head form the bristle assembly through the fixing rings, the bristle assembly is arranged at intervals through the fixing rings, the bristle assembly and the hard toothbrush handle are subjected to injection molding to form the soft rubber part, connection is achieved, and when a motor of an electric toothbrush drives bristles to vibrate through the toothbrush handle and the soft rubber part, the bristle assembly serves as an independent unit, and deformation of soft rubber is combined. The flexible glue has relatively high swing degree of freedom, and when the flexible glue is in contact with teeth, gingiva or the inner wall of an oral cavity, the flexible glue is soft in touch, so that the comfort level can be improved.

The invention relates to an oral implant positioning method and system based on deep learning. According to the method, three-dimensional point cloud data of an oral cavity is obtained and preprocessed, and a pre-trained three-dimensional deep learning segmentation model is utilized to automatically and accurately segment tooth, gingiva and alveolar bone structures. And based on the segmentation result, extracting key form and spatial relationship characteristics of the alveolar bone, and matching with an implant database to primarily select a candidate scheme. By integrating geometric constraint verification and biomechanical simulation, the candidate schemes are optimized and decided, and the optimal implant implantation position and posture meeting the safety and biomechanical requirements are calculated. And finally, automatically generating digital operation guide plate data completely matched with the gingival form of the patient according to the optimal scheme. According to the method, automation and intellectualization of the whole process from data collection to surgical guide plate generation are achieved, the defects that a traditional method depends on artificial experience, is high in subjectivity and low in efficiency are effectively overcome, and the precision, efficiency and reliability of implantation surgical planning are remarkably improved.

The invention belongs to the technical field of medical materials, and particularly relates to a tooth whitening composition and a preparation method thereof, the tooth whitening composition comprises the following components by weight: 5%-15% of hydrogen peroxide, 0.5%-1.5% of a gel matrix, 0.2%-1.0% of a thickener, 5%-10% of a humectant, 3%-8% of propylene glycol, 0.05%-0.2% of a chelating agent, 1%-3% of a sweetener, 0.1%-0.5% of sodium fluoride, and the balance of water. Aiming at the problems that an existing tooth whitening product is relatively low in pH value (most of 4.0-5.0), easy to irritate gingiva and sensitive in tooth manufacturing, and the existing tooth whitening product needs to be stored in a dark place at a low temperature and is short in whitening validity period, the pH value of the product is adjusted to 5.5-6.5, so that the product is close to oral saliva, the irritation can be reduced, the stability of the product can be ensured, the product is not easy to decompose, and the tooth whitening effect is good. Active ingredients are prevented from losing efficacy in advance, and the whitening validity period is prolonged.

According to one embodiment of the present invention, the present invention can provide a dental model for dental practice, the dental model comprising an upper jaw part and a lower jaw part to which dental models are detachably coupled, the dental models comprising: a single tooth forming a tooth head and a tooth root, a coupling guide protrusion for preventing detachment and guiding the coupling direction when coupled to the tooth fixing block side is formed on the outer surface of the tooth root, and a dental nerve is formed in the interior of the tooth root; a tooth fixing block forming an internal space detachably coupled to the root of the single tooth, the internal space being filled with a conductive adhesive for measuring the length of the root canal; a gingival part in which a plurality of the tooth fixing blocks are assembled in accordance with a tooth arrangement; and a chin strap to which the gingival part and the tooth fixing block are fixed, the chin strap being coupled to the temporomandibular joint on either side of the maxillary part or the mandibular part.

The invention provides a probiotic composition for preventing and / or inhibiting oral pathogens as well as a derivative product, a preparation method and application of the probiotic composition, and belongs to the technical field of oral care. The probiotic composition comprises the following bacterial strains in parts by mass: 90 to 0.45 part of a lactobacillus rhamnosus bacterial strain A2114, 10 to 0.3 part of a plant lactobacillus bacterial strain A2124, 80 to 0.4 part of a pediococcus pentosaceus bacterial strain A2135, 250 to 0.25 part of a lactobacillus reuteri bacterial strain A21350, and 40 to 0.2 part of a plant lactobacillus bacterial strain A2109. The probiotic composition or the metabolite thereof can effectively inhibit oral pathogens such as streptococcus mutans, porphyromonas gingivalis, helicobacter pylori, escherichia coli and staphylococcus aureus. Therefore, the probiotic composition or the metabolite thereof shows a good application prospect in the aspects of preventing and relieving oral problems such as decayed teeth, periodontitis and ozostomia.

The invention provides a data scanning method and device, electronic equipment and a storage medium. The method comprises the steps that first scanning data of an oral cavity in a first state are obtained, the oral cavity in the first state refers to that at least one abutment is implanted into the oral cavity, and the first scanning data comprise initial abutment data and gingival data; second scanning data of the oral cavity in a second state are obtained, the oral cavity in the second state refers to that a corresponding scanning rod is installed on a base in the oral cavity, and the second scanning data comprise scanning rod data; determining a first conversion relation between scanning rod data and target base station data in the second scanning data; and processing the first scanning data and the second scanning data based on the initial base station data and the target base station data and the first conversion relation between the scanning rod data and the target base station data to obtain a target three-dimensional model. By means of the implant scanning method and device, the problems that the implant scanning process is complex, the scanning cost is high, and a user feels uncomfortable easily can be solved.

Proposed are schemes, solutions, concepts, designs, methods and systems pertaining to aiding and / or improving oral care apparatus having cleaning elements that are adapted, in use, to engage dental tissue of the user. Embodiments propose that, based on light reflected from a surface of the oral cavity during use, an indication of positioning with respect to a tooth surface or gum tissue of the user may be determined. That is, it may be determined whether a cleaning element is positioned at a tooth surface or gum tissue of the user by analyzing light reflected from a surface of the oral cavity.

The invention provides an adjustable oral soft tissue traction fixing device for an apical surgery. The adjustable oral soft tissue traction fixing device comprises a dentition fixing component, a lower jaw fixing component and a soft tissue traction fixing component, the dentition fixing component is used for being fixed in the oral cavity of a subject and located at the upper end of the dentition where the operation teeth are located. The dentition fixing component comprises a buckle plate and an insertion rod; a groove is formed in the lower side of the buckle plate, and the buckle plate is buckled on the dentition through the groove; the upper end of the insertion rod is fixed to the first side of the buckle plate. The lower jaw fixing component comprises a bottom plate and a side plate; the bottom plate and the side plate are connected to form an L shape; the lower jaw fixing component is used for being fixed outside the oral cavity of a subject; first insertion holes are formed in the side plates in the vertical direction; the lower part of the inserting rod is inserted and fixed in the first inserting hole; the first end of the soft tissue traction fixing component can be adjustably fixed to the lower jaw fixing component, and the second end of the soft tissue traction fixing component is used for extending into the oral cavity of a subject so as to achieve traction and fixing of gingival soft tissue flaps.

The invention provides a three-dimensional gingival mesh model generation method, medium and equipment, and the method comprises the steps: obtaining edge points of a three-dimensional dental crown model, projecting the edge points of the three-dimensional dental crown model for a first preset distance in a specified upper and lower jaw direction, and then carrying out polynomial fitting to obtain a bottom contour line of the three-dimensional gingival mesh model; obtaining a gingival bottom grid model based on the bottom contour line; performing point interpolation between the edge points and the points on the projected bottom contour line, and connecting the interpolated points to form a gingival side grid model; connecting the edge point of the dental crown model with the central point of the dental crown model, and constructing a gingival top grid model; and combining the gingival top mesh model, the gingival bottom mesh model and the gingival side mesh model to obtain a complete gingival mesh model. According to the scheme, the detail features of the dental crown edge points are fully considered when the gingival grid model is generated, so that generated gingival details are richer, and the precision is higher.

The invention relates to a computer-implemented method for adjusting a position of artificial teeth of a denture. A digital 3D model of the denture comprising at least a denture part is provided. The denture part is configured for a jaw of a patient and comprises a dental arch with a plurality of artificial teeth arranged in an artificial gingiva. A deformable gingiva section of the artificial gingiva is defined between the teeth of the plurality of artificial teeth and a fixed gingiva section of the artificial gingiva with a fixed geometrical form. The dental arch is moved as a whole relative to the fixed gingiva section in order to adjust the position of the dental arch. A geometrical form of the deformable gingiva section is deformed due to the moving of the dental arch, whereas the fixed gingiva section maintains the fixed geometrical form.

The invention relates to the technical field of oral care, in particular to a staggered electric toothbrush capable of realizing a Pasteur tooth brushing method, which comprises a replaceable cleaning module and a handle module. The brush head is designed to be in a U shape, outer bristles and inner bristles are clustered, and the bristles are driven to move in a staggered mode through the left transmission rod and the right transmission rod, so that horizontal vibration brushing is achieved. Compared with the prior art, the toothbrush can more effectively clean tooth slits and subgingival areas, reduces gingival injury, is suitable for sensitive people to use, and improves the comfort level. And the cleaning module can be easily replaced, so that the maintenance is simple and convenient.

The invention relates to the technical field of color correction, in particular to a baked porcelain false tooth color adjusting method and system based on image analysis, and the method comprises the following steps: identifying teeth, gingiva and surrounding tissues in an image, determining a region boundary by using an edge detection technology, and calibrating a region according to gray difference. According to the method, teeth and surrounding tissues are accurately segmented by using an edge detection technology, accurate identification of a tooth area in an image is realized, a clear starting point is provided for color adjustment, a wave band with high reflectivity is selected, the quality of image data is optimized, the precision of subsequent color analysis is ensured, and hue, brightness and saturation are adjusted in a CIELAB color space; the matching degree of denture colors and natural teeth is improved, the visual coherence is enhanced, neural network analysis and time sequence data are integrated to predict long-term color changes, a real-time feedback mechanism automatically adjusts color parameters according to illumination conditions, the visual effect is continuously optimized, and the naturalness and consistency of colors in different environments are guaranteed.