58 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 application relates to a semi-solid denture frame which comprises two retention clamps, two connecting bodies and a tooth site support; the two connecting bodies are located between the two retention clamps along a first circumferential direction; the tooth site support is located between the two connecting bodies along the first circumferential direction and is used for supporting a false tooth and a base at a missing tooth site; the connecting body comprises a connecting part and a plug-in part; the connecting part is fixedly connected with the retention clamp; the plug-in part is connected and locked at a first position or a second position on the connecting part; one end of the plug-in part, which is away from the connecting part along the first circumferential direction, is provided with a second retention groove which penetrates through the upper end of the connecting part along a first direction; two connecting protrusions are fixed on the tooth site support and are slidably embedded into the two second retention grooves along the first direction, so that the tooth site support is fixedly connected with the connecting body. The semi-solid denture frame has the effect of mounting the false tooth in the oral cavity.

The application discloses a facing porcelain powder for pure titanium dentures and a preparation method and facing porcelain thereof, the facing porcelain powder corresponding to the base glass does not contain SiO2, and solves the problem that the combination between the existing facing porcelain powder containing SiO2 and the pure titanium denture base is damaged, and the performance of the pure titanium denture after baking is affected. The facing porcelain powder is a pure glass phase, and the base glass is composed of the following components in terms of weight percentage and comprises the following components: B2O3, 56-58%; Al2O3, 20-22%; CaO, 8-10%; Na2O, 6-8%; K2O, 6-8%; the sum of the weight percentages of the components in the base glass is 100%; wherein, the CaO is introduced in the form of raw material CaCO3, the Na2O is introduced in the form of raw material Na2CO3, and the K2O is introduced in the form of raw material K2CO3.

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.

The invention discloses a false tooth manufacturing method. The method comprises the following steps: forming a plurality of basic model data based on a large amount of existing patient oral cavity data; according to a plurality of basic model data, a corresponding reference false tooth three-dimensional model is constructed, the reference false tooth three-dimensional model comprises a tooth sub-model and a false tooth base sub-model, and the false tooth base sub-model is provided with a tooth embedding opening allowing the tooth sub-model to be embedded; a tooth model allowance and a base model allowance are added to the surface areas, except the splicing area, of the tooth sub-model and the false tooth base sub-model respectively; a basic denture rough blank is formed through injection molding of the denture mold, the basic denture rough blank comprises a denture base and a plurality of teeth, and tooth allowance and base allowance are added to the surface areas, except for the splicing area, of the teeth and the denture base respectively. According to the manufacturing method of the false tooth, material waste is little, cutting time is shortened, and manufacturing cost is reduced.

[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.

Provided is a denture with a base that suppresses a decrease in esthetics while improving strength. A method for manufacturing a denture with a base includes: a step of producing a denture base (3) that is formed with a concave tooth socket (2) and in which a longitudinal groove (7) is formed in a bottom surface of the tooth socket (2); a step of applying an adhesive material (9) to the tooth socket (2) and the longitudinal groove (7); a step of embedding a reinforcing structure (8) in the longitudinal groove (7) to which the adhesive material (9) is applied; and a step of arranging an artificial tooth (1) in the tooth socket (2) to which the adhesive material (9) is applied.

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.

The invention provides polyurethane acrylate with spirothiopyran groups as well as a synthesis method and application thereof, and relates to the technical field of denture base materials. In the polyurethane acrylate with the spirothiopyran group, a C-S weak covalent bond of spirothiopyran is introduced into a main chain of the polyurethane acrylate, energy is dissipated by utilizing the characteristic that the spirothiopyran is easy to crack under the action of external force, and cross-linking among chains is realized through a free radical mediated click reaction, so that the mechanical strength is enhanced, and the mechanical property of the polyurethane acrylate is improved. Therefore, the composite material is suitable for the fields of denture bases, dental prostheses, biomedical implants and the like.

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.

To acquire (or have acquired) three-dimensional data with higher accuracy. [Solution] A three-dimensional data acquisition method comprising the steps of attaching an attachment member that is thicker than the contact portion between the denture and the oral cavity wall, using a scanner to obtain scan data of the denture with the attachment member attached, and generating three-dimensional data of the denture based on the scan data, wherein the step of obtaining scan data of the denture includes scanning a first surface of the denture including the attachment member, and scanning a second surface of the denture opposite the first surface including the attachment member.

The invention discloses a denture base forming device of a prefabricated denture, and relates to the technical field of denture base manufacturing, the denture base forming device comprises a mold body, a mold cover detachably connected to the top of the mold body and a mold bottom detachably connected to the bottom of the mold body, the axis of the upper surface of the mold cover is provided with a plurality of groups of overflow ports; and two groups of symmetrical mounting grooves are formed in the corners of the rear side of the upper surface of the mold cover. According to the denture base forming device for the prefabricated denture, through the arrangement of the dismounting mechanism, the convex block, the movable block, the elastic body, the fixed groove, the movable cylinder, the clamping ring and the groove, the mold body is conveniently separated from the mold cover and the mold bottom, a gypsum block wrapping a denture base model is also conveniently separated from the mold body, the behavior of violently prying or hammering a mold box by a worker is reduced, and the working efficiency is improved. Meanwhile, the clamping rings are clamped in the grooves, so that gypsum liquid is prevented from overflowing from gaps of all components of the mould box, the alignment accuracy of all the components of the mould box is improved, and the probability that the denture base model is distorted or fractured is reduced.

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 present application relates to a kind of three-dimensional modeling method, system, equipment and medium of denture support.The method includes: obtaining three-dimensional dental model;Generate the three-dimensional model of multiple denture support components fitted on three-dimensional dental model;Determine the connection relationship between denture support components, wherein the connection relationship includes the first connection relationship realized by the first connecting body of linear structure, or the second connection relationship realized by the second connecting body of surface structure;Based on the first three-dimensional spline line of the path or shape of the first connecting body or the second connecting body in three-dimensional space is generated;According to the first three-dimensional spline line, the first connecting body or the second connecting body is constructed;The first connecting body or the second connecting body is fused with corresponding denture support component, to form integrated denture support structure.The present application improves functional adaptability and wearing comfort;By adjusting bias parameter, the mechanical strength of connecting body can be flexibly controlled, to meet clinical needs.

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 compatible false tooth support which comprises a support body and a positioning piece, a plurality of installation holes are evenly distributed in the surface of the support body, false teeth are fixed in the installation holes, the bottoms of the false teeth are connected with false tooth bridge bodies, the false tooth bridge bodies are fixed in the installation holes in the surface of the support body through fixing assemblies, the positioning piece is arranged in the installation holes, and a threaded rod is screwed in the forward direction through a tool. One end of the threaded rod rotates in the threaded groove of the moving block, so that the moving block moves towards one end close to the second positioning block, and when the moving block moves, the clamping block is driven to move towards the clamping groove in the surface of the second positioning block and is clamped with the clamping groove under continuous screwing, and the second positioning block at the bottom of the false tooth bridge body is clamped and fixed into the fixing groove; and in the later period of disassembly, only the threaded rod needs to be reversely screwed, so that the movable block drives the clamping block to move, and the clamping connection of the second positioning block is separated, and therefore, the false tooth can be disassembled and replaced, and the disassembly and replacement are relatively simple and convenient.

To provide composite resin teeth that have excellent fracture resistance to withstand occlusal pressure in the oral cavity and exhibit good adhesion to the denture base.SOLUTION: Provided is a composite resin tooth having a single-layer or multilayer structure, comprising a composite resin layer made of a polymerized cured product of a curable composition containing a polymerizable monomer (A), an organic-inorganic composite filler (B), inorganic fine particles (C), and non-crosslinked polymer particles (D), wherein the content of the non-crosslinked polymer particles (D) in the curable composition is in a range of 1 mass% or more and 5 mass% or less, and the average particle diameter of all the inorganic particles (C) contained in the curable composition is 1 μm or less.SELECTED DRAWING: None

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.