18 results about "Oral soft tissues" patented technology

The invention discloses a personalized complete denture precise manufacturing method based on a multi-modal digital technology, and relates to the technical field of oral restoration engineering and digital medical treatment. According to the method, firstly, three-modal data acquisition of oral soft tissue, facial aesthetics and alveolar bone anatomy is completed through an intraoral scanner, surface scanning equipment and CBCT; performing precise registration through an ICP algorithm to generate an integrated model; a virtual jaw frame and intelligent tooth arrangement software are combined to complete personalized design; for special cases, a transition / temporary denture and a biocompatibility tissue regulator are adopted to realize dynamic adaptation; and finally, completing false tooth manufacturing and verification through 3D printing or five-axis cutting. The method solves the problems that a traditional method is low in precision, weak in special case treatment and the like, achieves anatomy-function-aesthetics synergistic repair of the false tooth, and has the advantages of being high in adaptation degree, short in period and less in revival.

The invention discloses a rapid-absorption collagen repair membrane and a preparation method thereof, and relates to the technical field of biological materials. The repairing membrane is of a double-layer structure and comprises a purified collagen layer and an absorbable polymer spinning layer loaded with inorganic nanoparticles. The preparation method comprises the following steps: purifying animal skin to obtain a purified collagen layer; the preparation method comprises the following steps: respectively dispersing akermanite and hydroxyapatite nanoparticles, and mixing; adding the mixed dispersion liquid into the absorbable polymer solution to obtain a composite spinning solution; spinning the composite spinning solution on the surface of the collagen layer by adopting an electrostatic spinning method to form a spinning layer; and drying to obtain the repairing film. According to the invention, by regulating and controlling the variety, proportion, crystallinity and spatial distribution of the inorganic particles, the synergistic enhancement of mechanical properties and biological activity is realized, so that the repair film has pH-responsive graded release ability, can automatically adjust degradation behavior according to inflammation intensity, actively adapts to microenvironment, and has good application prospects. The method can be widely applied to the fields of oral soft tissue repair, periodontal wound covering and the like.

The invention provides an oral soft tissue recognition method, device and equipment and a storage medium, and relates to the technical field of oral scanning. The method comprises the following steps: firstly, acquiring an original oral cavity endoscope image, then performing multi-level feature extraction on the original oral cavity endoscope image, and constructing a multi-scale feature pyramid; performing over-domain adaptive processing on the multi-scale feature pyramid, and synchronously performing image segmentation processing and depth estimation processing based on the processed multi-scale feature pyramid to obtain segmentation features; and finally, based on the segmentation features, obtaining an oral soft tissue segmentation result, thereby realizing high-quality oral soft tissue segmentation while ensuring real-time performance.

The invention provides a composition for oral rehabilitation and a preparation method thereof, and belongs to the technical field of oral care. The composition for repairing the oral cavity is prepared from glaze protein, polylysine, ceramide NP, a plant extract, a penetration enhancer, a slow release agent, a preservative and a solvent. The amelogenin dominates cell proliferation and differentiation and tissue regeneration and provides core repair power; the polylysine promotes proliferation, resists bacteria and strengthens the mechanical strength of newborn tissues; the ceramide NP reconstructs the mucosal barrier, reduces component loss and external stimulation, and stabilizes and restores the environment. Through compounding of the three components, the oral soft tissue injury repair efficiency can be remarkably improved, the healing period is shortened, and the recurrence rate is reduced. Experiments show that the composition can effectively promote cell proliferation and migration, inhibit release of inflammatory factors and remarkably shorten the wound healing period, and the repairing effect is excellent.

The invention relates to a bionic collagen matrix with a density gradient double-layer structure, and belongs to the technical field of medical materials. The collagen matrix takes telopeptide collagen derived from mammalian dermis or achilles tendon as a main component, and comprises a double-layer structure of a compact layer and a loose layer, and the compact layer is smooth in surface and compact in structure, so that cell migration can be blocked, and a certain protection effect is achieved; the loose layer is of a porous structure, cell ingrowth and blood clot stabilization are facilitated, and a support is provided for tissue repair. The preparation method of the biological membrane comprises the following steps: preparing telopeptide-removed collagen gel, preparing collagen sponge, preparing a collagen tissue regeneration membrane, and compounding the collagen tissue regeneration membrane and the collagen sponge into an integrated double-layer structure through bonding, drying and crosslinking. The double-layer structure simultaneously meets the double requirements of barrier protection and tissue regeneration, the process is simple and controllable, and the double-layer structure is suitable for clinical scenes such as oral soft tissue repair, alveolar ridge reconstruction and tooth extraction pit coverage.

The invention relates to the technical field of intelligent electric protector control, and discloses an electric toothbrush automatic start-stop control method based on oral cavity multi-sensor fusion and a toothbrush, the method comprises the following steps: collecting proximity sensing and ambient light illumination signals, and switching to an active detection mode when the signals accord with oral cavity darkroom characteristics; then the motor is controlled to generate micro-amplitude vibration, and the load damping characteristic quantity of the motor phase current and the optical-mechanical coupling coefficient obtained through demodulation by using the detection frequency are extracted; when it is judged that the load damping characteristic quantity and the optical-mechanical coupling coefficient both exceed a set threshold value, it is confirmed that effective contact is established between the brush head and oral soft tissue, and a motor is controlled to be started and enter a normal operation mode; and during operation, the ambient light change rate is monitored in real time, and the motor is controlled to stop when the shift-out action is recognized. According to the invention, through a multi-dimensional physical contact verification mechanism, false start splashing and invalid idling in a non-oral environment are effectively prevented.

The utility model relates to a cleaning unit, a cleaning unit group and a configuration box capable of removing redundant adhesive, the cleaning unit comprises a cleaning part with a hollow ring hole structure, and the section of a hollow ring hole is matched with the section of a tooth, so that the cleaning part can be attached to a narrow gap between a bridge tissue surface and gingiva, and the redundant adhesive on a linear edge is effectively removed; the cleaning unit further comprises an operation structure. The cleaning part and the operation structure are integrally made of elastic materials, so that the cleaning unit can deform when making contact with gingiva and oral cavity soft tissue, and scratching or stabbing possibly caused by rigid instruments is avoided. The operating structures are ear wings which are designed on two sides of the cleaning part and are convenient for clamping operation by two hands; or the operating structure is a finger ring which is designed on one side of the cleaning part and is convenient for single-hand operation, so that the doctor can select two-hand clamping or single-hand operation according to actual requirements during operation, and the flexibility and convenience of use are greatly improved.

This invention discloses a teeth whitening product containing piezoelectric materials. The invention uses piezoelectric materials with a piezoelectric effect as the whitening ingredient in the teeth whitening product. By contacting the teeth with the whitening product and applying pressure to the tooth surface, the piezoelectric properties of the material are activated, generating a large number of active groups that degrade stains on the tooth surface, achieving teeth whitening. The teeth whitening product of this invention is safe and non-toxic, the teeth whitening method is simple to operate, it does not damage oral soft tissues, nor does it damage the enamel layer on the tooth surface, it does not harm the tooth structure, and it can achieve long-lasting and effective teeth whitening results.

This invention relates to the fields of biomedical engineering and regenerative medicine, and particularly to a plasma matrix composite membrane activated by autologous keratinized epithelial tissue fragments, its preparation method, and its applications. The composite membrane is obtained by mixing autologous keratinized epithelial tissue fragments with a liquid autologous plasma matrix in a specific ratio, utilizing tissue factors on the surface of the tissue fragments to trigger platelet activation, spontaneously forming a gel, and then pressing it into a membrane. This invention is the first to utilize the biointerface of autologous keratinized epithelial tissue fragments to activate platelets, eliminating the need for exogenous thrombin and achieving completely autologous in-situ gelation. The composite membrane formed after pressing possesses excellent mechanical properties and barrier function, and can be prepared in a single operation in the operating room without the need for in vitro cell culture. The composite membrane of this invention is used for oral soft tissue augmentation, such as widening of keratinized gingiva and alveolar ridge soft tissue augmentation, and has advantages such as no donor site damage, high biosafety, and ease of operation.

This invention relates to a gradient elastic modulus sports protective brace, its preparation method, and its application. The gradient elastic modulus sports protective brace includes at least an impact-resistant layer, a buffer layer, and an adhesive layer with a segmented or continuous gradient distribution of elastic modulus. The adhesive layer is used to adhere to the tooth surface and oral soft tissues, and to help disperse residual impact energy. The buffer layer surrounds the adhesive layer and is used to disperse impact energy. The impact-resistant layer surrounds the buffer layer and is used to resist external impact loads and guide energy inward. The elastic modulus of the impact-resistant layer is greater than that of the buffer layer, and the elastic modulus of the buffer layer is greater than that of the adhesive layer. Compared with existing technologies, this invention, through its gradient elastic modulus distribution design, achieves progressive absorption and effective dissipation of impact energy by the sports brace, significantly reducing the peak force on the user's teeth and periodontal tissues during impact, thereby improving overall protective performance and making it suitable for sports scenarios of varying intensities.

The application provides a tooth bleaching material based on a biological heterojunction and a preparation method and application thereof, and belongs to the field of medical new materials. The tooth bleaching material is a BaTiO3@CeO2-GOx (BCG) biological heterojunction, and the preparation method comprises the following steps: preparing a BaTiO3@CeO2 heterojunction; fixing glucose oxidase GOx on the surface of the BaTiO3@CeO2 heterojunction through electrostatic adsorption to obtain a BaTiO3@CeO2-GOx (BCG) biological heterojunction material. Under the action of ultrasonic waves, the BCG produces active oxygen (ROS) through piezoelectric catalysis, realizes efficient oxidative decomposition of tooth pigments, and simultaneously, the CeO2 component in the BCG can effectively remove excessive free ROS, thereby protecting oral soft tissues from oxidative damage. The material has excellent non-damaging tooth whitening ability in in-vitro experiments, and provides a safe and efficient precise treatment method for oral aesthetic care.

The invention relates to a tool for obtaining free soft tissue flaps in oral soft tissue transplantation surgery, which comprises a handle and a working structure fixed at the front end of the handle, the working structure is made of medical-grade metal materials, and the whole working structure is of an arc shovel-shaped structure and is matched with the radian of an alveolar bone; a working blade is arranged at the front end of the working structure, a depth limiting structure used for limiting the shoveling depth is arranged on the side portion of the working structure, the position of the depth limiting structure is relatively higher than the working blade, and a preset height difference exists between the depth limiting structure and the working blade. The tool ensures that the thickness of the soft tissue valve obtained every time is accurate and uniform through the working head with the standardized thickness and width, obtaining can be completed through one-time cutting and propelling, and the operation efficiency is improved.

The invention discloses a lycium barbarum polysaccharide spray as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The lycium barbarum polysaccharide spray comprises a partially oxidized dialdehyde polysaccharide aqueous solution and lycium barbarum polysaccharide-gelatin microspheres dispersed in the partially oxidized dialdehyde polysaccharide aqueous solution, the lycium barbarum polysaccharide-gelatin microspheres take cross-linked gelatin as a matrix, and lycium barbarum polysaccharide is uniformly embedded in the cross-linked gelatin. The preparation method of the lycium barbarum polysaccharide spray comprises the following steps: preparing lycium barbarum polysaccharide-gelatin microspheres by adopting an emulsion template method, and dispersing the lycium barbarum polysaccharide-gelatin microspheres in a partially oxidized dialdehyde polysaccharide solution, thereby obtaining the lycium barbarum polysaccharide spray. The invention also discloses an application of the lycium barbarum polysaccharide spray in preparation of a medicine for preventing or / and oral cavity tissue injury. The traditional Chinese medicine active ingredient lycium barbarum polysaccharide is applied to the field of oral medicine through a modern medicine technology, and a brand new scheme with remarkable clinical value is provided for preventing and treating oral soft tissue injury, particularly tobacco-caused injury.

The invention relates to a dental sand blasting powder composition as well as a preparation method and application thereof. The dental sand blasting powder composition comprises biocompatible saccharides, a fluidity regulator, a grinding material, a functional additive and water, the biocompatible saccharides comprise natural disaccharides. The dental sand blasting powder composition provided by the invention is non-irritant to oral soft tissues, can effectively remove stains such as bacterial plaque, soft dirt, smoke stain and tea stain on the surfaces of teeth, forms a protective film on the surfaces of the teeth, reduces tooth sensitivity, and has cleaning and tooth protecting effects.

The invention belongs to the technical field of image modeling drawing, and relates to an image drawing parameter determination method and device, equipment and a storage medium thereof. Performing global data histogram distribution conversion on the target data; carrying out de-noising smoothing processing on the histogram distribution result to obtain a histogram distribution curve; and determining a parameter value for drawing the target image according to the histogram distribution curve. The method is applied to a scene for carrying out volume rendering modeling on a human intracranial oral cavity position, for example, drawing modeling is carried out on distribution of an oral cavity soft tissue structure, a tooth structure and a skeleton structure of a target object in combination with human head CBCT scanning data; the CT segmentation parameter value of the soft tissue structure, the CT segmentation parameter value of the tooth structure and the CT segmentation parameter value of the bone structure and the CT segmentation parameter value of the soft tissue structure and the CT segmentation parameter value of the bone structure can be automatically and intelligently determined according to CBCT scanning data, and oral cavity drawing modeling rendering and segmentation rendering can be more accurately carried out.

This invention discloses an intelligent denture modeling device based on oral scan data, relating to the field of dental prosthesis modeling. This device, by setting a light refraction acquisition component for emitting blue light at the end of the scanner and a bite plate on the mounting tube, allows the patient to bite down on the bite plate and exert force when collecting oral data. This puts the oral soft tissues in a stressed state, and the light refraction acquisition component at the front end, in conjunction with the scanner, captures the soft tissue displacement under the biting force, obtaining the patient's oral data under the stressed state. This helps medical personnel obtain functional pressure impressions and improves the accuracy of denture fabrication.

The invention relates to the technical field of medical instruments, in particular to an orthodontic traction device which comprises a base embedded in the oral cavity. A traction mechanism, a clamping mechanism and a laminating mechanism are arranged on the base; the traction mechanism is used for adjusting orthodontic traction force; the clamping mechanism is connected with the traction mechanism, and the clamping mechanism is used for fixing target teeth; and the clamping force of the clamping mechanism is synchronously increased along with the increase of the traction force output by the traction mechanism. The fitting mechanism is connected with the clamping mechanism and is used for fitting oral cavity soft tissues; the deformation curvature of the fitting mechanism is synchronously increased along with the increase of the traction force so as to maintain the fitting with the oral soft tissue. The clamping mechanism is connected with the traction mechanism, so that the clamping force is automatically enhanced or reduced along with the traction force, displacement deviation or accessory falling of target teeth in the moving process is effectively reduced, and the risk of complications such as tooth root absorption and dental pulp injury is reduced.

The invention relates to the field of orthodontic nursing materials, and provides a probiotic cleaning gel composition as well as a preparation method and application thereof. The probiotic cleaning gel composition comprises a gel matrix and probiotic encapsulation units dispersed in the gel matrix, the gel matrix is prepared from carbomer, gellan gum and hydroxypropyl methyl cellulose; the probiotic encapsulation unit sequentially comprises an inner water phase, a middle oil phase and an outer water phase from inside to outside, and the inner water phase comprises probiotic freeze-dried powder and a freeze-drying protective agent. Through physical encapsulation and slow release of the probiotics, the probiotics are stably attached to the surfaces of oral soft tissues and orthodontic devices and are continuously released and colonized, so that pathogenic bacterium colonization and biological membrane formation are effectively inhibited, the oral micro-ecology is improved, plaque accumulation and inflammatory response are reduced, and halitosis can be relieved; the high stability of the probiotics in the preparation and storage process and the convenience in use are considered, and the oral cavity repairing agent is suitable for long-term orthodontic care and daily oral cavity maintenance.