41 results about "Denture base" patented technology

The present invention relates to methods for curing polymeric dental appliances comprised of partially cured photopolymerizable components, especially for additively manufactured denture base and artificial tooth components utilized in the production of full and partial dental prostheses. In particular, the invention relates to methods of utilizing a curing apparatus having one or more controllable heating sources and one or more controllable LED light sources to achieve specific preheating and light curing conditions for more effectively converting partially cured photopolymerizable components from a partially cured state to a final cured state.

This invention discloses a digital complete denture manufacturing method and a digital complete denture, relating to the field of digital oral technology. The invention acquires digital models of the patient's edentulous maxilla and mandible, along with jaw position data. Virtual tooth arrangement and denture base design are completed in computer-aided design software, generating a composite digital model. The base data is converted into CNC instructions, and a five-axis CNC milling machine is used to cut prefabricated material blocks to produce a solid denture base. Matching solid prefabricated dentitions are selected from a prefabricated dentition database, surface-activated, and then bonded and fixed to complete the denture assembly. This method is highly efficient, provides stable precision, and significantly shortens the manufacturing cycle and the number of treatment visits.

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 utility model relates to the technical field of oral treatment, and discloses ultrasonic tooth orthodontic auxiliary treatment equipment and an oral treatment device, a denture base body is provided with a treatment part which can be selectively attached to gingiva, tooth covering grooves with different sizes can be formed by fitting gum shapes of different patients, the treatment part can be recycled, and the treatment effect is good. The universality of the ultrasonic tooth orthodontic auxiliary treatment equipment is improved, the treatment cost is reduced, the fit degree of the treatment part and the periodontium is higher, and the orthodontic auxiliary treatment effect is stabilized; the flexible circuit board is arranged in the treatment part and deforms together with the treatment part, conductor wiring used for transmitting electric energy is arranged in the flexible circuit board to integrate circuits, additional wiring is not needed, and wiring harness arrangement is neat; the ultrasonic transduction sheets which are in one-to-one correspondence with the teeth to be orthodontic and are arranged opposite to the gingiva are arranged in the treatment part and are electrically connected with the conductor wiring at the same time, assembly is simple, the ultrasonic transduction sheets are conveniently arranged in the oral cavity of a patient, ultrasonic stimulation is carried out on targeted parts of the teeth, and the orthodontic effect is improved.

[Problem] To provide, in a relatively inexpensive manner, a polymerization molding model which has high molding accuracy and surface density and enables easy release from a molded resin after polymerization molding, and a polymerization molding method. [Solution] A molding model for polymerization molding of dentures comprises: a thin-skin cup model having an internal space which is opened downward by means of a three-dimensional recessed surface on the back side of a three-dimensional molding part made of a thin-skin body having a constant thickness; and a dental plaster that is filled in the internal space opened downward of the thin-skin cup model and is solidified. After polymerization molding, the solidified dental plaster is destroyed and removed from the internal space; the three-dimensional molding part made of the thin-skin body is bent or folded and deformed, and the thin-skin body of the three-dimensional molding part is peeled from a polymerized main molded resin body resulting from denture base molding for demolding.

The utility model discloses a polyether-ether-ketone denture support, which belongs to the technical field of denture supports and comprises a support, a titanium cylinder, a zirconium oxide dental crown and a gingival portion. A gingival part covers the bottom of the bracket, a titanium cylinder is arranged at the bottom of the bracket, and a zirconium oxide dental crown can be fixed at the top of the bracket; a plurality of titanium cylinders are arranged at the bottom of the support, and threads are arranged in the titanium cylinders. The gingival part is arranged at the bottom of the bracket and covers the titanium cylinder; the support is made of polyether-ether-ketone. According to the utility model, the polyetheretherketone is adopted in the false tooth bracket part, and a traditional pure titanium bracket is replaced. The color of the polyether-ether-ketone material is milky white, so that a metallic color can be prevented from being revealed at a dental crown, and the repaired tooth is natural and attractive in color. The surface of the titanium cylinder is covered with polyether-ether-ketone, and the polyether-ether-ketone eliminates the black penetration phenomenon caused by thinner gingiva of a traditional metal stent, and can optimize the visual effect of a transition area between the prosthesis and the gingiva.

The present disclosure relates to a photosensitive resin composition, a use method and an application thereof. The raw materials of the photosensitive resin composition include the following components: 55-75 parts by weight of polyurethane acrylate oligomer; 5-25 parts by weight of monofunctional acrylate monomer; 5-15 parts by weight of multifunctional acrylate monomer; and 1-5 parts by weight of initiator. The photosensitive resin composition provided by the present disclosure has low viscosity and fast curing speed, is suitable for light curing 3D printing technology, and has good toughness and low water absorption after curing and forming. The denture base prepared has no water absorption, good toughness, stable performance and strong impact resistance.

This invention provides a polycomposite mold model and method that offer high molding accuracy and surface density, and facilitate easy removal of the molded resin after polycomposite molding, at a relatively low cost. [Solution] The molded model for the composite molding of dentures consists of a thin-skin cup model having an open internal space on the back of a three-dimensional molded part made of a thin skin of a certain thickness, and dental gypsum that is filled into the open internal space of the thin-skin cup model and solidified. After composite molding, the solidified dental gypsum is broken and detached from the internal space, the three-dimensional molded part made of the thin skin is bent or folded and deformed, and the thin skin of the three-dimensional molded part is peeled off from the polymerized main molded resin body formed by the denture base and demolded.

The utility model discloses a kind of dentition loss supports, including base, clasp and false tooth;False tooth is located on base, base is used to wrap alveolus at missing tooth place, and base is multiple, and elastic rod for conforming to inner wall of alveolus is connected between any two adjacent bases, and base is equipped with clasp for wrapping and fixed to the outer periphery of abutment tooth;The outer edge of base is equipped with sealing rubber ring for conforming to alveolus.The utility model, by the design of elastic rod and clasp, let user be more stable, comfortable when wearing the dentition loss support, adapt to the small deformation of user's oral cavity;And base outer edge is equipped with sealing rubber ring, can reduce food residue, saliva into alveolus.

The invention relates to a digital zirconium oxide complete denture and a preparation method thereof.The complete denture prepared through the steps of oral cavity model preparation, scanning, software design, printing, cutting, sintering, bonding and the like comprises a base plate and a zirconium oxide dental crown, a tooth groove is formed in the base plate, a positioning piece is arranged in the tooth groove, and the zirconium oxide dental crown is arranged in the positioning piece. A cavity used for injecting glue and forming a retention shape is formed in the zirconium oxide dental crown, and the dental crown is arranged outside the positioning piece through the retention shape of the cavity in a sleeving manner. By arranging the pre-arranged positioning piece on the top of the tooth socket, during installation, the tooth crown and the base plate can be installed only by injecting retention glue into the cavity of the tooth crown and sleeving the retention glue outside the positioning piece, so that the convenience of installation is improved, the teeth are arranged through computer software, no debugging is needed after installation, the tooth crown is convenient and accurate to install, and the installation efficiency is improved. And firmness and wear resistance are improved.

The invention provides a complete denture generation method, electronic equipment and a computer readable storage medium, and relates to the technical field of digital oral cavities. The method comprises the following steps: acquiring an edentulous jaw three-dimensional model, face scanning data and oral cavity scanning data of a user; extracting upper and lower jaw feature information of the edentulous jaw three-dimensional model; based on the upper and lower jaw feature information of the edentulous jaw three-dimensional model, obtaining a target natural dentition model from a natural dentition database; and based on the face scanning data and the oral cavity scanning data, calibrating the target natural dentition model to obtain a complete denture three-dimensional model. The corresponding dentition is matched in the natural dentition database, and the complete denture is manufactured on the basis of the matched and screened dentition, so that compared with a traditional complete denture manufacturing method, the complete denture manufacturing method is quicker and more accurate, clinical operation links are reduced, the manufacturing period is shortened, and the manufacturing efficiency is improved. And the manufacturing efficiency of the complete denture and the fitness of the generated complete denture and a user are remarkably improved.

To provide a composite resin tooth that has excellent fracture resistance capable of withstanding the occlusal pressure in the oral cavity and exhibits good adhesive property to a denture base.To provide a composite resin tooth having a single layer structure or a layer structure of two or more layers, comprisinga composite resin layer consisting of a polymerized and cured product of a curable composition including polymerizable monomer (A), organic-inorganic composite filler (B), inorganic fine particle (C) and non-crosslinked polymer particle (D), whereinthe content of the non-crosslinked polymer particle (D) in the curable composition is within a range of 1% by mass or more and 5% by mass or less, andan average particle diameter of all of the inorganic particles (C) contained in the curable composition is 1 μm or less.

This application discloses a method and system for three-dimensional modeling of dentures based on oral images and its training. The method includes: acquiring a first oral sample image, a positive sample three-dimensional denture model, and a negative sample three-dimensional denture model, and a model to be trained including a first sub-model and a second sub-model; reconstructing a second oral sample image using the first sub-model based on the first oral sample image; determining the first sub-model loss based on the difference between the first oral sample image and the second oral sample image; generating an initial three-dimensional denture model using the second sub-model based on the second oral sample image; determining the second sub-model loss based on the differences between the initial three-dimensional denture model and the positive sample three-dimensional denture model, and the differences between the initial three-dimensional denture model and the negative sample three-dimensional denture model; determining a comprehensive loss based on the first sub-model loss and the second sub-model loss; and iteratively training the model to be trained based on the comprehensive loss, which can improve the efficiency and accuracy of three-dimensional denture modeling.

Disclosed in the present application is an adjustable removable denture mounting structure, relating to the technical field of removable denture mounting. The structure comprises a denture base pre-mounted on an alveolar ridge and a denture mounted on the denture base. The bottom of the denture base is integrally provided with an insert portion, an insert groove adapted to the insert portion is formed in the alveolar ridge , and a threaded tube is fixedly implanted in the insert groove. A circular groove adapted to the threaded tube is formed at the bottom of the insert portion, a connecting groove is formed at the top of the denture base, and a connecting screw is inserted into the bottom of the connecting groove. The connecting screw penetrates through the insert portion and extends into the threaded tube to be in threaded connection with the threaded tube. The bottom of the denture is integrally provided with a connecting block adapted to the connecting groove, and limiting grooves are formed on both sides of the connecting block. Empty cavities are formed on both sides of the denture base, and limiting assemblies are disposed in the empty cavities. According to the present application, the denture can be limited and fixed by means of the limiting assembly, thereby improving the stability of denture mounting and reducing the risk of detachment.

The invention relates to a try-in denture base comprising one or more receptions for receiving basal sections of artificial teeth. A first reception is configured to receive two or more basal sections of two or more artificial teeth. A reception volume provided by the first reception is larger than a combination of basal volumes of the two or more basal sections of the two or more artificial teeth to be received. The first reception forms a continuous open space configured to enable a relative movement of the two or more basal sections of the two or more artificial teeth within the first reception towards and away from each other.

The application discloses a false tooth cleaning device which comprises a cleaning box, a fixing assembly installed in the cleaning box and used for fixing the false tooth, a brushing assembly installed in the cleaning box and used for brushing the false tooth, a spraying assembly installed in the cleaning box and used for spraying and air-drying the false tooth and a storage assembly installed outside the cleaning box and used for storing cleaning liquid. The false tooth is fixed in the cleaning box through the fixing assembly, and then the false tooth is cleaned through the brushing assembly and the spraying assembly, so that the problems of deformation of the clasp and the denture base caused by manual cleaning are avoided. The brushing assembly brushes the false tooth from the inner side and the outer side of the false tooth, and then the false tooth is flushed through the spraying assembly, so that the dental plaque and various residues in the surface and the gap of the false tooth are cleaned, and the cleaning effect is greatly improved compared with manual cleaning.

The utility model discloses a false tooth glue support multi-part one-time forming processing device which comprises a shell, a glue injection cup and a forming box located below the glue injection cup are arranged in the shell, an embedding type box is placed in the forming box, the glue injection cup comprises a cup body and a flow dividing pipe connected to the bottom of the cup body, a bottom plate of the cup body is provided with an overflowing hole, and the overflowing hole is communicated with the embedding type box. The cup body is detachably connected with the flow dividing pipe, a liquid inlet and a liquid outlet are formed in the side wall of the forming box, a push rod is arranged at the top of the shell and used for pressure casting of resin in the glue injection cup, and the two sides of the cup body of the glue injection cup are connected with the shell. A clamping piece is arranged at the bottom of the forming box and used for fixing the embedded box, and displacement of the embedded box in the glue injection process is avoided; the cup body is detachably connected with the shunt tube, so that the cup body and the shunt tube are convenient to clean; the shunting pipe is wide in top and narrow in bottom, and bubbles in denture resin are extruded out in the die-casting process; the glue injection cup is provided with a plurality of shunt pipes, so that the denture set can be manufactured through one-time matching of the denture base resin and die-casting forming.

The utility model belongs to the technical field of engine accessories, and particularly relates to a mixing and stirring device which comprises a mixing and stirring barrel used for stirring and containing materials and a sealing cover located at an opening of the mixing and stirring barrel. The sealing cover is provided with a containing cavity used for containing self-solidifying denture powder and a containing pipe used for containing self-solidifying denture water, and the containing cavity and the containing pipe are integrated. An inner bottom plate of the sealing cover is provided with a discharging funnel which is integrated with the inner bottom plate; the discharging funnel is provided with a one-way control valve a and a flow meter a; a liquid discharge pipe communicated with an inner cavity of the containing pipe is arranged on the containing pipe, a one-way control valve b and a flowmeter b are arranged on the liquid discharge pipe, and the liquid discharge pipe is located in the stirring reaction cavity in a normal state. Due to the structure, the material supply quantity is easy to control, and the health of students is facilitated.

This invention discloses a method, apparatus, device, and computer-readable storage medium for designing dentures. The denture design method includes: acquiring dental model data of a patient's oral cavity; identifying residual teeth in the patient's oral cavity based on the dental model data; selecting a target template tooth matching the residual teeth from a preset template library and generating the gingiva corresponding to the target template tooth; and generating a target denture based on the target template tooth and the gingiva. This application shortens the denture design process time when tooth roots or crowns remain in the patient's oral cavity.

The utility model relates to the technical field of denture pressure models, in particular to a movable denture pressure model which comprises a denture base and a plurality of denture main bodies, each denture main body is provided with a dismounting structure, each dismounting structure comprises a plurality of positioning columns fixedly mounted on the denture base, a first spring connected with a connecting block is wound on an unlocking rope, and a second spring connected with the connecting block is wound on the unlocking rope. And an anti-falling block is fixedly mounted at the other end of the unlocking rope. Through the arrangement of the dismounting structure, after the unlocking rope is loosened, the limiting block rebounds under the elastic action of the first spring and is clamped with the limiting groove, so that the false tooth main body is fixed on the false tooth base, and the installation of the false tooth main body is completed; the situation that an unlocking rope is brought into a positioning column under the elastic effect of a first spring, and consequently the false tooth body is inconvenient to disassemble next time can be prevented, the false tooth body can be cleaned in all directions through a disassembling structure, and bacterium breeding caused by residue residues is avoided.

The utility model provides a detachable denture convenient to clean, and particularly relates to the technical field of dentures, the detachable denture convenient to clean comprises a denture base, when the detachable denture convenient to clean is used for a long time, in order to guarantee oral health, a denture body needs to be cleaned, conventional cleaning is inconvenient and not thorough, and a fixing column at one end of a connecting column can be screwed, so that the denture body can be cleaned conveniently. According to the detachable denture disclosed by the invention, the connecting column is separated from the stud, so that a single denture body can be taken out, the denture body is more comprehensively cleaned, the detachable and convenient-to-clean effect is realized, and when a denture base is worn, a mushroom head inserting rod on a protective plate can be inserted into a connecting hole, and the protective plate can be better fixed through deformation inserting of the mushroom head inserting rod; the polygonal clamping blocks on the protective plate are clamped with the polygonal grooves, the polygonal clamping blocks are made of silica gel materials, certain flexibility is achieved, clamping is convenient, even if clamping is not successful, the abutting and limiting effect can be achieved, and the gum can be protected through the protective plate.

The present application relates to the technical field of new materials, in particular to a kind of light-cured 3D printing resin containing aryl pyridine salt and preparation method and application.The specific technical scheme is as follows:the present application uniformly mixes light-cured pyridine salt active monomer, photoinitiator, active diluent, acrylate oligomer and additive to obtain 3D printing resin, and the 3D printing resin is used for printing denture base.The method of the present application is fully reacted, the process is relatively simple, easy to realize, different structures of light-cured resin containing aryl pyridine salt can be designed according to requirements, and excellent antibacterial property can be shown by a small amount of addition.

The present invention relates to a denture base resin and a method for manufacturing the denture base resin and, more specifically, to a denture base resin having improved antioxidant and antiviral functions and enhanced mechanical strength, and a method for manufacturing the denture base resin.

Method for shortening prefabricated denture teeth for dental prostheses in the form of partial or complete dentures, wherein the method is characterized by the following steps: A) Creating or providing a virtual 3D model of a dental prosthesis with a virtual model of a prosthesis base (1) as a gingival imitation and with at least one virtual model of at least one machined prosthesis tooth (4) to be arranged in the prosthesis base (1) to replicate at least one tooth; B) Calculating a cervical volume (9) to be cut off from at least one prefabricated denture tooth (4) with known geometry by comparing the at least one virtual model of the at least one machined denture tooth (4) with at least one virtual model of the at least one prefabricated denture tooth (4) using a CAD method, wherein the cervical volume (9) to be cut off is located on a cervical side (8) of the at least one prefabricated denture tooth (4); C) Calculating at least one cutting surface for separating the cervical volume (9) to be cut off calculated in step B) from the at least one prefabricated denture tooth (4), wherein the at least one cutting surface includes an interface between the cervical volume (9) to be cut off from the at least one prefabricated denture tooth (4) and the respective remaining denture tooth (4); D) Fixing at least one prefabricated denture tooth (4) with a holder (12, 30), wherein the prefabricated denture tooth (4) consists of at least 90 wt% of a plastic in at least a cervical area; E) Removal of the cervical volume (9) to be cut off calculated in step B) from the at least one fixed prefabricated prosthetic tooth (4) by at least one cut with a laser beam (24), wherein the laser beam (24) is guided relative to the at least one fixed prosthetic tooth (4) and / or the prosthetic tooth (4) in the holder (12, 30) is guided relative to the laser beam (24) according to the at least one calculated cutting surface in step C).

The invention relates to a method for determining an internal structure of a denture base (24). The method comprises obtaining outer shell data describing an outer shell (28) of the denture base (24). Furthermore, a gingival ridge line (30) is identified or gingival ridge line data describing the gingival ridge line (30) is obtained. Furthermore, a first reference line (32) is defined by parallel displacement of the gingival ridge line (30) or the gingival ridge line (30) is defined as the first reference line (32). Furthermore, a first reference point (36) is defined above or below the denture base (24). A first partition surface (40) is defined as a surface comprising all straight lines extending through the first reference point (36) and the first reference line (32). Furthermore, at least one sub-volume (V1, V3) of the denture base (24) is derived as a volume bounded by the first partition surface (40) and the outer shell (28). The invention also relates to a denture base (24). Furthermore, the invention also relates to a data processing device, a computer program and a computer readable medium.

The invention discloses a method for simultaneously detecting the content of three photoinitiators in light-cured denture base resin. The method comprises the following steps: leaching a cured resin sample by using methanol as a solvent to obtain a leaching solution; then separating and detecting the liquid to be detected by using an ultra-high performance liquid chromatography-mass spectrometry technology; and finally, performing quantitative analysis based on the standard curve of each target object by adopting an external standard method. The method provided by the invention can be used for synchronously and accurately measuring the contents of three key photoinitiators, namely (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide, 2, 4, 6-trimethylbenzoyl-di (p-tolyl) phosphine oxide and 3, 5-di-tert-butyl-4-hydroxybenzoic acid hexadecyl ester, namely, (2, 4, 6-trimethylbenzoyl) diphenyl phosphine oxide, 2, 4, 6-trimethylbenzoyl-di (p-tolyl) phosphine oxide and 3, 5-di-tert-butyl-4-hexadecyl benzoate. The method has excellent repeatability, high sensitivity and accurate quantification capability, the operation process is simple, convenient and rapid, and reliable technical support is provided for monitoring the biological safety and quality consistency of the photocuring denture material.

The application relates to the technical field of digital dental manufacturing, and discloses an intelligent design system and method for personalized dentures based on three-dimensional scanning, which comprises the following modules: a feature analysis and detection module, which is used for receiving scanning data with entity line drawing, extracting anatomic feature boundaries, and calculating the local normal thickness of grid vertices; a mechanical self-adaptive reinforcement module, which is used for calculating dynamic required thickness in combination with layout data, and performing internal thickening compensation on weak areas on the premise of maintaining the feature boundaries unchanged; a shock and vibration prevention tool path optimization module, which is used for dynamically adjusting the feed speed according to the tool point thickness, and generating numerical control codes; and a visual guidance module, which is used for calculating a polishing penetration risk coefficient and generating a three-dimensional color heat map. The application solves the problems of easy vibration and collapse of the extremely thin area under the wet cutting condition and the strength reduction of the base caused by artificial blind polishing, and significantly improves the breakage resistance load and processing yield of the finished product.

The utility model provides a kind of adsorptivity denture and its base plate, which is beneficial to the close adhesion of adsorptivity denture base plate edge and surrounding mucosa, and has better adsorptivity, relating to denture base plate technical field.A kind of adsorptivity denture base plate, including denture base plate body, the side of the denture base plate body is equipped with gum clamping groove, the side surface of the denture base plate body is formed oral cavity adhering surface by being equipped with the gum clamping groove, the side surface of the denture base plate body is equipped with recess to form adsorption cavity.The utility model improves wearing experience.

The invention discloses a bionic denture base based on a multi-material gradient structure and a preparation method of the bionic denture base, and belongs to the field of dental restoration and digital additive manufacturing. The bionic denture base comprises a base body, the base body is provided with a material structure with the elasticity modulus continuously changing in a gradient mode from the inner surface to the outer surface, and the material structure is formed by mixing at least three basic resin materials in a space gradient mode; the denture body is divided into at least four functional zones according to anatomical positions and functions of the denture body in an oral cavity, the functional zones comprise a main bearing zone, an auxiliary bearing zone, an edge sealing zone and a buffer zone, and a bionic stress conduction channel is embedded in the main bearing zone; through the design of the multi-material gradient structure and the bionic structure, the denture base can effectively disperse chewing stress, and local stress concentration is reduced. According to the invention, the interface bonding strength and the interlayer stripping force of the denture are obviously improved, the local stress can be reduced, and the pressure borne by the oral mucosa and the alveolar ridge is greatly reduced.

The utility model provides a removable partial denture. The removable partial denture comprises a base plate tightly attached to the bottom of an oral cavity; the three-arm clamping ring and the combined clamping crown respectively extend towards one side of the base plate; the y-shaped buckle extends towards the other side of the base plate; the false tooth part and the y-shaped buckle are arranged on the same side, and the false tooth part is tightly attached to the edge of the base plate. According to the denture base, the static friction coefficient of the denture base and the oral mucosa is increased through the base structure precisely attached to the anatomical form of the bottom of the oral cavity; meanwhile, a three-arm clamping ring, a combined clamping crown composite fixing system and a y-shaped buckle device are arranged on the two sides of the base respectively, a three-dimensional space positioning and fixing mechanism is constructed, and the problems that in the prior art, an anti-skid rubber pad and an anti-abrasion rubber pad can affect the matching property of the tooth hook and the gum contour, and local compression discomfort can be caused are solved.