121 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.

Apparatuses, components, devices, methods, and systems for generating dentures are provided. An example system includes a motion capture system that captures patient jaw motion and generates patient jaw motion data; and a denture design system that generates a denture design based on the patient jaw motion data. An example method includes acquiring a digital reference denture model of a reference denture; selecting a denture tooth library based on the digital reference denture model; selecting and aligning denture library teeth from the selected denture tooth library to the digital reference denture model; generating a denture base digital model based on the digital reference denture model and the aligned denture library teeth; and fabricating a physical denture based from the denture base digital model.

The utility model relates to the technical field of denture base processing devices, in particular to a denture base processing laser angle adjusting device which comprises a processing table, a welding contact head and a rotating mechanism, the rotating mechanism comprises a moving assembly, a mounting table, a rotating table, four rolling steel balls and a fixing assembly, and the moving assembly comprises a moving screw rod and a rotating motor. When laser spot welding is carried out on the denture base, the denture base is placed on the rotating table, spot welding cannot be carried out on areas with certain angles only by adjusting the angle of the welding contact head, at the moment, the rotating motor is started, the movable screw rod rotates, the mounting table is moved through threads, and meanwhile the rotating table can be rotated; the welding contact head rotates under the assistance of the four rolling steel balls, so that the horizontal angle and the horizontal position of the denture base are adjusted, the welding contact head can carry out comprehensive spot welding machining on the denture base, the denture base does not need to be adjusted and fixed again for many times, the machining time can be shortened, and the effect of improving the machining efficiency is achieved.

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 present invention relates to the technical field of denture base materials, and discloses a wear-resistant functional denture base material and a production process thereof. The denture base material comprises the following raw materials: polymethyl methacrylate, denture water, an initiator, an accelerator, a wear-resistant additive, and a functional composite. By adding the wear-resistant additive, a diffusion enhancement effect can be achieved in the denture base material, thereby reducing the wear rate of the denture base material, improving the hardness and wear resistance of the denture base material, and helping to reduce the replacement frequency of the denture base; by adding the functional composite, a toughening effect can be achieved, the bending strength of the denture base material can be improved, the fracture of the denture base material can be avoided, and the denture base material can be given long-lasting antibacterial properties, thereby reducing the erosion of the denture base material by microorganisms and extending the service life of the denture base.

The present disclosure relates to a composite resin for aesthetic restoration with improved antibacterial properties and polymerization depth containing lysozyme, which comprises uethane dimethacrylate (UDMA), bisphenol A-glycidyl methacrylate (BIS-GMA), bisphenol A dimethacrylate ethoxylated (BIS-EMA), triethylene glycol dimethacrylate (TEGDMA), a photoinitiator, a photoinitiator aid, a filler, barium glass, an accelerator, an antioxidant, an anti-discoloration agent, and an antibacterial agent, and a method for preparing the same. The composite resin for aesthetic restoration may be applied as a bulk-fill resin due to improved polymerization depth, may secure resistance to bacteria or viruses due to excellent antibacterial properties, and may implement bending strength that exceeds 80 MPa, which is a level required by the Ministry of Food and Drug Safety, after polymerization.

The present invention relates to the field of material technology, and discloses a denture base composite material and a preparation process thereof. This composite material is prepared by carrying out a free radical copolymerization reaction with methyl methacrylate as the main raw material, modified tourmaline and a functional polymer monomer. By carrying out in-situ polymerization of methyl methacrylate and the functional polymer monomer on the surface of acetylene gas, tourmaline exists in the composite material in the form of chemical bonds. On the one hand, it can play a role in transmitting and dispersing stress loads and enhance the mechanical strength of the composite material. On the other hand, chemical bonding is conducive to the uniform dispersion of tourmaline. Utilizing the characteristic that tourmaline can release negative ions, it can regulate the balance of oral functions. The presence of the functional polymer monomer can make the composite material have a hydrophobic and oleophobic surface, making the composite material easy to clean.

The utility model discloses a dental model collet which is used for bearing a dental model, a bearing surface of the dental model collet for bearing the dental model is provided with a plurality of groove structures, and a membrane is pressed into the groove structures through openings of the groove structures during hot pressing of the membrane so as to limit the membrane from being separated from the dental model collet; wherein the groove structure is located in a space defined by the edge of the bearing surface and the edge of the bottom surface of the dental model and is arranged at a preset distance from the edge of the bottom surface of the dental model. The groove structure is arranged in the space defined by the edge of the bearing surface of the collet of the dental model and the edge of the bottom surface of the dental model, and the preset distance is formed between the groove structure and the edge of the bottom surface of the dental model, so that a part of a membrane can be pressed into the groove structure in a membrane hot-pressing process, and the membrane subjected to membrane pressing cannot be separated from the collet of the dental model; and the pressed film wrapping effect of the tooth jaw model 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.

The present invention relates to a composite resin for esthetic restorations with improved antimicrobial properties and polymerization depth, and a manufacturing method therefor, wherein the compositive resin comprises urethane dimethacrylate (UDMA), bisphenol A-glycidyl methacrylate (BIS-GMA), bisphenol A dimethacrylate ethoxylated (BIS-EMA), triethylene glycol dimethacrylate (TEGDMA), a photoinitiator, a co-photoinitiator, a filler, barium glass, an accelerator, an antioxidant, a discoloration inhibitor, and an antimicrobial agent in addition to lysozyme. With the enhanced polymerization depth, the resin can be applied as a bulk-fill resin, and the excellent antimicrobial properties thereof provide resistance against bacteria and viruses. After polymerization, the resin exhibits a flexural strength exceeding 80 MPa, which is a level required by the Korean Ministry of Food and Drug Safety.

The utility model provides a removable denture with prolonged service life, which comprises a denture base, a denture body and a reinforcing stud, and the upper surface of the denture base is provided with a plurality of groups of mounting threaded holes which are linearly and equally distributed and are used for mounting the denture body. The denture has the beneficial effects that the denture base, the denture body and the reinforcing stud are additionally arranged, and the mounting external thread on the outer side surface of the denture mounting column at the lower end of the denture body is in threaded fit connection with the mounting threaded hole, so that the denture body can be conveniently disassembled and assembled; after the false tooth body is mounted, the stud body at the front end of the reinforcing stud is screwed into the rear threaded hole and the inner side of the front threaded hole, so that the false tooth body can be reinforced and mounted, and the service life of the movable false tooth can be prolonged; and the sealing ring is embedded with the sealing ring groove, so that the sealing performance of mounting the false tooth body can be improved.

The present invention relates to a plate denture production kit for stereolithography including a curable composition for a denture base (I) containing a (meth)acrylic based polymerizable monomer component (A) containing a (meth)acrylic based polymerizable monomer (m) as a major monomer, and a photopolymerization initiator, and a composition for a prosthetic tooth (II) containing a (meth)acrylic based polymerizable monomer component (B) containing the same (meth)acrylic based polymerizable monomer (m) as contained in the curable composition for a denture base (I), having a content of the (meth)acrylic based polymerizable monomer (m) of 20% by mass or more based on 100% by mass of the (meth)acrylic based polymerizable monomer component (B), and a method of producing a plate denture.

[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.

Clamshell Press for Cold Cure Acrylic Denture Base Blanks fabrication

The utility model provides a clamping device for false tooth processing, and relates to the field of false tooth processing equipment, the clamping device for false tooth processing comprises a supporting device, a rotating rod and two transmission plates, the supporting device is movably connected with the rotating rod, and two ends of the rotating rod are provided with threads with opposite thread directions; the two transmission plates are in threaded connection with the two ends of the rotating rod correspondingly, the tops of the two transmission plates are fixedly connected with first clamping plates correspondingly, the tops of the first clamping plates are arranged above the supporting device, and the sides, away from each other, of the two first clamping plates are provided with second clamping plates correspondingly; the clamping device comprises a first clamping plate and a second clamping plate, the second clamping plate is movably connected with the first clamping plate through a connecting device installed on the first clamping plate, and the distance between the first clamping plate and the second clamping plate can be adjusted through the connecting device. The outer part and the inner part of the denture base can be respectively clamped, so that the grinding work is convenient.

To provide a partial denture which maintains a configuration in which a denture base is disposed between an artificial tooth and an alveolar ridge, but does not have a portion in the denture base that engages with the inside of the gums, prevents discomfort on the inside of the gums, appropriately distributes the burden of biting force, and effectively supports the artificial tooth. [Solution] The partial denture of the present invention comprises artificial teeth to replace missing teeth, a metal inner wall that backs up the artificial teeth from the inside and engages with the inner surfaces of the abutment teeth, and a resin denture base that supports the artificial teeth and engages with the outer side of the gums, and as the denture base has no portion that engages with the inner side of the gums, it does not cause discomfort to the user, and the artificial teeth are securely supported by the inner wall and denture base, while the inner wall utilizes the abutment teeth to appropriately fix the partial denture itself.

The utility model relates to the field of complete dentures, and discloses a high-stability complete denture. According to the denture, a locking screw is movably mounted on the upper surface of the denture body, a denture base is fixedly mounted on the lower surface of the denture body, a fastening bolt mounting protective sleeve is fixedly mounted on the surface of the denture base, a movable groove is inserted into the upper surface of the fastening bolt mounting protective sleeve, and a locking screw is movably mounted on the surface of the movable groove. A false tooth can be abraded in the using process, when a user uses the false tooth to chew hard food, the false tooth is prone to being damaged or generating certain plastic deformation, a false tooth body of the device is made of all-ceramic materials and is firm and durable, a locking screw is arranged at the center of the interior of the false tooth body and connected with a false tooth base, and therefore the false tooth is convenient to use. The locking screw is inserted into the movable groove, the locking screw is limited, the fastening bolt mounting protective sleeve can protect the locking screw to a certain extent, and the service life of the locking screw is prolonged.

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.

The present invention relates to the field of denture base materials, and provides a 3D printing high-strength oral denture base and a preparation method thereof. The denture base is prepared from the following components: titanium oxide composite microspheres coated with chitosan, surface modified boron nitride nanotubes coated with nano-silver particles, acrylic resin, polyetheretherketone, anhydrous ethanol, defoamer, dispersant, and photoinitiator. Preparation method: S1. Disperse fillers, and prepare a uniform mixed solution by ultrasonic and mechanical stirring; S2. Prepare a resin base liquid, add acrylic resin, polyetheretherketone and other materials and stir evenly; S3. Print and form, and use a DLP light-curing 3D printer to print the denture base; S4. Finishing, including demoulding, cooling and surface grinding treatment, finally obtaining a finished denture base. The present invention solves the strength and antibacterial problems of the denture base by combining titanium oxide composite microspheres with chitosan coating layers and surface modified boron nitride nanotubes coated with nano-silver particles, respectively, and has a wide range of application value.

The invention discloses a treatment false tooth manufacturing method based on a digital technology, which comprises the following steps: scanning to obtain oral cavity data and a jaw position relationship of a patient, and designing an upper jaw false tooth and a lower jaw false tooth according to the oral cavity data and the jaw position relationship obtained by scanning; an upper jaw base body, an upper jaw dentition body, a lower jaw base body and a lower jaw anterior tooth body are manufactured through 3D printing; bonding the maxillary dentition entity on the maxillary base entity by using an adhesive to form a maxillary denture entity, and bonding the mandibular anterior tooth entity on the mandibular base entity by using an adhesive to form a mandibular denture entity; filling a groove on the mandible base entity with a material to form a resin flat plate; and correcting the resin plate until a correct occlusion relationship is established between the upper jaw denture entity and the lower jaw denture entity. The mode of combining digital design and 3D printing is adopted, the manufacturing process is short, and the manufacturing period of the treatment denture can be remarkably shortened; and the manufactured treatment denture entity and the designed digital treatment denture are high in consistency, so that the manual error is reduced.

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.

The present application relates to the field of digital data processing technology, and specifically to a finite element analysis method and system for full-mouth edentulous removable dentures, the method comprising: obtaining a CT image of the patient's oral cavity, constructing a three-dimensional finite element model by finite element analysis, and meshing the three-dimensional finite element model, obtaining the unit size and maximum deviation coefficient of each grid, and the pressure trend vector of each grid during each dynamic occlusion process; determining the shape complexity weight of each grid; determining the pressure difference, force sensitivity, force discreteness, and structural disorder eigenvalue of each grid; obtaining each defective grid; calculating the number of extended neighborhood layers of each defective grid; refining the grid, and optimizing the denture according to the simulation results of the occlusion simulation of the three-dimensional finite element model. The present application can accurately capture local stress changes, improve the accuracy of finite element analysis of denture force analysis, and reduce the pain of patients when biting.

The utility model discloses an additive manufacturing denture base support body, the support body comprises a base and an imitated dental arch section, the base is a tongue-shaped panel with a certain thickness, the imitated dental arch section is arranged on the base, and the imitated dental arch section is a parabola-shaped protruding part arranged on the edge side of the base. The dimensional stability / integrity of the denture base is enhanced, in particular during printing post-processing steps of artificial tooth adhesion and secondary curing prior to removal of the support from the finished denture; the supporting body can be repeatedly used, and the working step of processing the consumable type removable supporting body does not need to be arranged on a production line.