51 results about "Dental structure" patented technology

The invention relates to the technical field of medical image diagnosis, and discloses a tooth and fracture line recognition treatment method based on the combination of an AI technology and a CBCT image, and the method comprises the steps: obtaining and preprocessing the CBCT image, and carrying out the multi-scale analysis and recognition of a tooth structure, a microcrack and a fracture line through a first AI model. And the second AI model combines the identification result and the patient characteristics, and generates a personalized treatment scheme through multi-objective optimization. Clinical feedback is used for continuously iteratively optimizing double models, and the diagnosis and treatment precision and effect are improved. The system comprises an image data acquisition unit, an image data preprocessing unit, a tooth and fracture line identification unit, a personalized treatment scheme generation unit and a feedback and optimization unit. Through AI and CBCT image fusion, accurate identification of teeth and fracture lines is realized, a personalized treatment scheme is recommended in combination with individual features of a patient and a multi-objective optimization algorithm, rapid response is realized, a closed-loop feedback mechanism continuous optimization model is established, and diagnosis and treatment precision, efficiency and individualization level are remarkably improved.

A method for determining a dental condition comprising: receiving at least one volumetric image and at least one intra-oral surface scan image of a dental structure of a patient, wherein the dental structure includes at least one of a crown, root, gingiva or bone; aligning the at least one volumetric image with the at least one intra-oral surface scan image; identifying boundaries of the gingiva and the bone within the aligned images; and calculating distances between the identified boundary of the gingiva and cementoenamel junction (CEJ), the identified boundary of the bone and the CEJ, and the identified boundary of the gingiva and the identified boundary of the bone to determine the dental condition.

A non-abrasive oral care composition includes a fragrance for imparting aroma and an additive for imparting additional properties. The oral care composition forms a protective coating on an applied dental structure, the oral care composition further comprises a type of plant-derived anionic surfactant and a type of plant-derived non-ionic surfactant, wherein the type of plant-derived anionic surfactant is sodium cocoyl apple amino acid. Optionally, the oral care composition further comprises a type of plant-derived amphoteric surfactant for stabilizing the composition and enhancing coating and foaming. The composition further includes an essential oil for imparting flavour, a menthol for providing a cooling sensation, and a sweetener for imparting pleasant taste to the composition, and a preservative for preventing the growth of microorganisms.

The application discloses a kind of intelligent preparation systems of laser navigation milk teeth root canal, it is related to milk teeth root canal treatment field, including: image processing module, self-checking registration module, structure acquisition module, spectral processing module, anomaly detection module, fusion determination module, compensation tracking module, digital modeling module, simulation learning module, trajectory generation module, execution monitoring module, safety protection module, interactive command module and record audit module;The application can more accurately distinguish infected dentin and healthy dentin, reduce the risk of misjudgment or missing infected areas, effectively reduce the risk of root tip penetration and root tip tissue damage, so that the laser cutting process always revolves around the real infected area, both can fully remove infected tissue, and can maximize the retention of healthy dental structure, improve root canal preparation efficiency and safety, reduce the dependence of doctors on experience judgment, so that milk teeth root canal preparation operation is more standardized and repeatable.

Disclosed is a computer-implemented method for determining and displaying distances between two three-dimensional (3D) models of dental structures, the method comprising the steps of obtaining an active three-dimensional (3D) model of a first dental structure, the active 3D model comprising a plurality of facets describing a surface of the first dental structure in 3D space, obtaining a reference three-dimensional (3D) model of a second dental structure, the second 3D model comprising a plurality of facets describing a surface of the second dental structure in 3D space, setting a first positive threshold value for a maximum relevant distance, generating a first facet search data structure for the reference 3D model using a graphics processing unit (GPU), for each vertex in the active 3D model, determining the distance to the nearest facet in the second reference 3D model up to the threshold value using at least the generated facet search data structure for the reference 3D model and displaying the determined distances in a graphical user interface on a display.

This disclosure provides an AI-based system for an intraoral support receptacle (OSR) of an intraoral appliance. The AI-based system comprises an electronic device (ED) and an OSR. The OSR determines whether an intraoral appliance is present inside the OSR and, if an intraoral appliance is present, emits a mist. The OSR captures an image / video of the intraoral appliance and transmits the captured image / video to the ED. The ED receives the captured image / video, uses the image / video to determine the type of intraoral appliance, and uses the image / video to determine at least one feature of the intraoral appliance based on the type. The ED generates a 2D and / or 3D dental structure based on at least one feature of the intraoral appliance and the image / video. The ED uses a trained AI model to compare the 2D and / or 3D dental structure with at least one of historical dental structure images and associated metadata within the ED and provides information about the dental structure data based on the comparison.

Various methods and systems for designing a restored smile are provided. One method includes receiving scan data of a patient's teeth, developing a digital model of the patient's teeth via a computing device, where the model represents the patient's teeth based upon the scan data, creating a dental treatment plan to restore one or more teeth from an initial condition to a successive condition, and wherein a final condition of the one or more is based on the one or more teeth having at least one planned additional restorative tooth structure provided therewith.

The present invention provides a non-abrasive oral care composition comprising a perfume for imparting fragrance and a natural additive for imparting additional properties, the oral care composition further comprising a plant-based anionic surfactant and a plant-based nonionic surfactant, the method is used for forming a layer of protective film on an applied dental structure. Optionally, the oral care composition also includes a vegetable amphoteric surfactant for stabilizing the composition and enhancing the coating and foaming effects. The composition may further include an essential oil for imparting a taste, menthol for providing a cool feeling, a sweetener for imparting a pleasant mouth feel to the composition, and a preservative for preventing growth of microorganisms.

A method for cleaning teeth using a tooth-cleaning device by removing tooth stains uses the following models: a tooth model, which describes the tooth structure of a user, a cleaning model of the particular user, which describes the tooth model by means of a state of staining, an expectation cleaning model, which describes the tooth model by means of an expected state of cleaning, an actual cleaning model, which is measured by means of corresponding sensors, and a cleaning deviation, which is determined by a comparison of the expected cleaning model with the actual cleaning model. The method comprises the steps of: a) determining the cleaning model and the expectation cleaning model; b) performing a cleaning process as defined by the cleaning model; c) determining the actual cleaning model; d) deriving the cleaning deviation from the actual cleaning model and the expectation cleaning model; e) using the actual cleaning model as new cleaning model, determining the expectation cleaning model on the basis of the new cleaning model, and adapting cleaning instructions on the basis of the cleaning deviation; and f) repeating steps b) to e) until a predetermined termination criterion has been reached.

To provide a dental polymerizable composition that enables enhancement of adhesive strength to dentin.SOLUTION: A dental polymerizable composition comprises a monomer liquid containing a non-acidic monomer having an ethylenically unsaturated group and free from acidic groups, and a photoacid generator, the photoacid generator being solid in the monomer liquid and soluble in water.SELECTED DRAWING: None

The demand for biocompatible dental materials has increased significantly, particularly in vital pulp therapy, due to the need for materials that promote tissue regeneration and long-term success. This invention introduces a novel Nanocarbon Platelets-Enhanced Portland Cement Composite that combines the well-established properties of Portland cement with the advanced mechanical and biological characteristics of graphene oxide nanocarbon platelets. This composite is designed to serve as both a restorative material and an agent for vital pulp therapy. The integration of graphene oxide nanocarbon platelets enhances the composite's mechanical properties while maintaining superior biocompatibility. This ensures the material supports cell viability and proliferation, crucial for successful tissue integration and regeneration. The unique formulation also improves the sealing ability of the cement, providing exceptional protection against bacterial infiltration and aiding in the preservation of dental structures. This invention aims to address the limitations of existing Portland cement-based materials, such as weak mechanical properties and potential cytotoxicity, by offering a more robust and biocompatible alternative. The composite is developed with a specific focus on dental applications, ensuring it meets the demands of modern restorative and endodontic procedures. The Nanocarbon Platelets-Enhanced Portland Cement Composite offers a cost-effective solution that can be easily integrated into existing clinical practices. Its development represents a significant advancement in materials science, with potential applications beyond dentistry, such as in orthopedic and craniofacial reconstruction. This composite sets a new standard for dental materials by combining mechanical strength, biocompatibility, and ease of use, promising improved outcomes for both patients and practitioners.

To provide a hardenable composition comprising an encapsulated material.SOLUTION: The encapsulated material comprises a basic core material and an inorganic shell material having certain viscosity criteria. Also described are dispensing devices and kits are described comprising a hardenable composition comprising a liquid material and an encapsulated material, the encapsulated material comprising a basic core material and an inorganic shell material comprising a metal oxide surrounding the core. The dispensing devices and kits can facilitate methods of applying the hardneable composition. The hardenable or hardened composition can provide various technical effects such as a delayed release of a basic core material, a delayed increase in basicity, promoting remineralization of a tooth or bone structure, and increasing average alkaline phosphatase (ALP) activity of pulp cells. In some embodiments, the composition is a dental composition for application to a tooth structure.SELECTED DRAWING: Figure 1

This utility model discloses a jaw fork structure, relating to the field of oral medicine technology. The utility model includes a main tooth structure body, and further includes: a jaw fork portion, which is installed on the outer side of the main tooth structure body and is interconnected by splicing; and a bolt, which is installed on the jaw fork portion for adjusting and locking it in place. This utility model uses an adjustment component, specifically inserting jaw fork rod three into a groove within jaw fork rod two, then inserting the bolt into the outer hole of jaw fork rod two and into a straight groove, connecting it threadedly with the internal threaded hole. At this point, the position of jaw fork rod three can be adjusted by pushing and pulling. After adjustment, tightening the bolt causes a convex ring to enter the outer hole and contact the jaw fork rod three, locking it in place. This method allows for adjustment of the length of jaw fork rod three according to different patient needs, eliminating the need for patients to customize the jaw fork structure.

The present disclosure provides an AI-based system for an oral support seat (OSR) of an oral appliance. The AI-based system includes an electronic device (ED) and an OSR. The OSR determines whether an oral appliance is present inside the OSR and dispenses a mist when the oral appliance is present. The OSR captures an image / video of the oral appliance and transmits the captured image / video to the ED. The ED receives the captured image / video, determines a type of the oral appliance using the image / video, and determines at least one feature of the oral appliance using the image / video based on the type. The ED generates a 2D and / or 3D tooth structure based on the at least one feature of the oral appliance and the image / video. The ED compares the 2D and / or 3D tooth structure to at least one of historical tooth structure images and associated metadata in the ED using the trained AI model, and provides information about the tooth structure data based on the comparison.

The present application provides a model alignment method and apparatus, and a device. The method comprises: acquiring a dental model and a facial model of a user, the facial model comprising a first facial model and a second facial model; segmenting a first rigid region in the first facial model and a second rigid region in the second facial model; on the basis of the matching of point cloud data between the second rigid region and the first rigid region, determining a first transformation matrix for aligning the second facial model to the first facial model; on the basis of the matching of point cloud data between the dental model and a dental structure region of the second facial model, determining a second transformation matrix for aligning the dental model to the second facial model; and on the basis of the first transformation matrix and the second transformation matrix, aligning the dental model and the first facial model. By means of the described method, a dental model can be accurately aligned to a facial model that lacks dental structure regions or has relatively few dental structure regions.

The invention relates to the technical field of medical teaching display instruments, in particular to an oral medicine teaching display device which comprises a bottom plate, a ball and an adjusting assembly, the upper end of the bottom plate is provided with a first threaded sleeve through a first bearing, the upper end of the first threaded sleeve is in threaded connection with a first threaded rod, and the upper end of the first threaded rod is provided with a supporting plate; the upper end of the supporting plate is provided with a ball seat through a third bearing, the upper end of the ball seat is movably connected with a ball, and the upper end of the ball is provided with a display stand. When the device is used, a rotating handle is rotated to drive a second threaded sleeve to rotate, the second threaded sleeve drives a third threaded rod to move upwards or downwards, and a positioning block and a positioning groove structure are arranged in a matched mode, so that the third threaded rod moves upwards or downwards to conveniently drive a tooth structure model on the display stand and the fixing frame to incline; students in different directions can clearly observe tooth details (such as dental crown and tooth root forms), and the display flexibility and the teaching effect are further improved.

A custom tool for forming a dental restoration in a mouth of a patient includes a facial mold body for a patient-specific, customized fit with the facial side of at least one tooth of the patient, wherein the facial mold body includes a restorative portion and a first engagement portion extending away from the restorative portion; a lingual mold body for a patient-specific, customized fit with the lingual side of the tooth of the patient, wherein the lingual mold body includes a restorative portion and a first engagement portion extending away from the restorative portion; wherein the first engagement portion of the facial mold body interlocks with the first engagement portion of the lingual mold body; and wherein the facial mold body and lingual mold body are configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of at least one tooth to be restored.

Dental prosthetic screw, tightening tool and coupling system firstly refers to a screw for retaining and fixing a dental element in a dental implant, said dental element being able to be any component that preferably aims to support a dental structure or dental prosthesis, preferably machined or laser sintered or laser sintered and re-machined or machined by CAD / CAM, and even the structure itself or dental prosthesis. Therefore, different components are used in the manufacture of prostheses on dental implants in human implantology, requiring said components to be retained and fixed to the dental implant by means of screws on the implant. Moreover, the invention relates to a screwdriver or tightening tool compatible with said dental screw and a tightening or coupling system formed by the two.

A method for training a neural network intended to analyze a dental situation of an updated patient. A historical learning database is created that relates to a dental body and to a spatial attribute associated with the dental body. The historical learning database includes more than 1,000 historical records, with each historical record relating to a respective historical patient. Each record including a set of historical images all depicting the dental body in the historical patient, called “historical dental body” and an item of spatial information including, for the historical patient, a set of values for the spatial attribute, called “historical spatial information.” The neural network is trained, by providing it with the sets of historical images as input and with the historical spatial information as output, with the spatial attribute defining an ordered sequence of variables in a three-dimensional reference frame.

The invention discloses an auxiliary supporting type nasal oxygen cannula suitable for a patient suffering from bucktooth and incisor tooth loss, and relates to the technical field of nasal oxygen canals, the auxiliary supporting type nasal oxygen cannula comprises a nasal oxygen cannula main body and an oral cavity supporting assembly, and the oral cavity supporting assembly is connected with the nasal oxygen cannula main body through a buckle type connecting assembly; the oral cavity supporting assembly comprises an adjustable occlusal pad and a plurality of anti-slipping buckles evenly arranged on the adjustable occlusal pad, the whole adjustable occlusal pad is of an arc-sheet-shaped structure, and the radian of the arc-sheet-shaped occlusal pad can be adjusted. The anti-slip buckle is used for hooking a gingival groove and abutting against the hard palate so as to fix the adjustable occlusal pad. According to the invention, the conversion from face fixation to stable support in the oral cavity is realized through structural innovation, a safe, comfortable and stable oxygen supply solution is provided for patients with abnormal tooth structures, the treatment compliance and life quality are remarkably improved, and the device has important clinical application value.

An object of the present invention is to provide a dental composition that shows desirable adhesive properties to tooth structure, and that has desirable mechanical strength in the form of a cured product while having low polymerization shrinkage stress. The present invention relates to a dental composition comprising: a (meth)acrylic compound (A); a monomer (B) having an acidic group and a molecular weight of less than 5,000; a monomer (C) having no acidic group and having a molecular weight of less than 5,000; and a polymerization initiator (D), the (meth)acrylic compound (A) having an average molecular weight of 5,000 to 50,000, and an average molecular weight of 1,250 or more and less than 20,000 per (meth)acryl group.

The invention discloses a CBCT tooth segmentation method fusing a slice attention mechanism and Transform semantic information, and the method comprises the following steps: 1, collecting an original CBCT image, and carrying out the preprocessing of the original CBCT image, and obtaining a preprocessed CBCT image; 2, performing'global + local 'feature preliminary extraction on the preprocessed CBCT image to obtain a multi-scale initial feature map; 3, strengthening the spatial correlation and key region focusing of the multi-scale initial feature map to obtain an enhanced feature map; step 4, processing the enhanced feature map to obtain a noise suppression-multi-dimensional fusion feature map; and 5, recovering the resolution of the original CBCT image, and outputting a segmentation result of the three-dimensional tooth structure. According to the method, the precision of tooth segmentation in the CBCT image can be remarkably improved, segmentation errors caused by noise interference and structural complexity are reduced, the spatial consistency of a segmentation result and a real structure is improved, and the method has relatively strong advantages in segmentation accuracy and integrity.

Method of analysis of a diagnostic dental representation showing a dental arch of a current patient in several dimensions. The method includes creation of a learning base including more than 1,000 historical dental structures. Each historical dental structure includes a historical dental representation showing an arch of a historical patient in several dimensions and a historical specification containing a value for at least a first attribute relating to a dental object associated with the historical dental representation. The method includes training of at least one deep learning device by use of the learning base. The method includes submission of the diagnostic dental representation to the deep learning device in such a manner that it determines, for the diagnostic dental representation, at least one value for the first attribute.

Disclosed are systems and techniques for designing a digital dental matrix with improved interproximal contacts, including generating a digital three-dimensional model of a patient's desired future dental structure, where the future dental structure represents the intended shape of at least one tooth of the patient; selecting one or more pairs of adjacent teeth within the 3D model; for each selected pair of teeth, determining a position and orientation within the interproximal space of the adjacent teeth to insert a digital 3D geometric shape having one or more initial parameters; and inserting the digital 3D geometric shape at the determined position and orientation.

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.

The invention discloses a dental crown design method, system and equipment, and the method comprises the steps: judging the defect condition of teeth through the structure and color of the teeth; selecting a design type corresponding to a judgment result according to the defect condition judgment result; and designing a dental crown matched with the tooth based on the design type. According to the method, the design types are selected on the basis of the judgment result of the tooth defect condition, deviation possibly caused by dependence on subjective experience of doctors in traditional design is avoided, the dental crown design is more scientific and reasonable, the design parameters of the dental crown can be more accurately determined through objective evaluation indexes, and the design quality and accuracy are improved.

The invention relates to a three-dimensional orthodontic retainer (2) and to a method for producing such a retainer (2) in which the three-dimensional orthodontic retainer (2) is matched to the exact shape of the adjacent teeth (3) and is produced from a blank (1) in such a manner that the physical properties of the material of the remaining part of the blank (1) are unchanged in the retainer (2). The method for producing the three-dimensional orthodontic retainer (2) comprises the following method steps: creating three-dimensional model of the structure of the patient's teeth (3); designing a customised, precisely fitting model of the retainer (2); producing the retainer (2) on the basis of the designed 3D model by computer-controlled deposition or application of material.

To provide a method for determining areas of a tooth substance subject to demineralization that may occur in a dental caries case.SOLUTION: Provided is a method for detecting demineralization of a tooth substance, including the steps of: irradiating (S101) a structured light pattern onto the tooth substance; detecting (S102) a light intensity of the light pattern remitted from the volume of the tooth substance; and determining (S103) demineralization of the tooth substance based on the detected light intensity.SELECTED DRAWING: Figure 4