30 results about "Partial upper denture" 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.

The invention relates to a method for manufacturing a removable partial dental prosthesis, the method comprising the steps of: a) manufacturing at least one monolithic block comprising an artificial tooth part and an artificial gum part, the monolithic block comprising at least one first joining member; b) manufacturing a frame that is configured to support the monolithic block, the frame comprising at least one second joining member; then c) joining the monolithic block to the frame by interlocking the first joining member with the second joining member to form the removable partial dental prosthesis.

The present invention relates to the technical field of computer-aided design, and more specifically to a system for dynamically predicting the occlusal relationship of a transparent support for a partial denture. The system implements the following steps: screening effective occlusal points based on the force conditions during tooth occlusion when the partial denture and the transparent support are installed; determining the main occlusal points at each moment based on the force magnitude and force superposition of each effective occlusal point; determining the slip trend of each main occlusal point; determining the slip transfer trend of each target occlusal point based on the slip trend and the force transfer between the main occlusal points; the target occlusal point is the main occlusal point on the partial denture; determining the shape control coefficient of the adjacent voxels of the target occlusal point on the transparent support based on the slip trend and slip transfer trend of the target occlusal point at each moment. Using this system, the occlusal relationship can be accurately predicted, thereby accurately determining the shape control coefficient of the voxels on the transparent support, and further accurately adjusting the shape of the transparent support.

The invention relates to the technical field of computer aided design, in particular to a partial denture transparent support occlusion relation dynamic prediction system. The system is implemented by the following steps: screening effective occlusal points according to a stress condition in a tooth occlusal process in a state of installing a partial denture and a transparent bracket; determining a main occlusion point at each moment according to the stress magnitude and the stress superposition condition of each effective occlusion point; determining the slippage trend of each main occlusion point; according to the slippage trend and the stress transmission condition between the main occlusion points, the slippage transmission trend of each target occlusion point is determined; the target occlusal point is a main occlusal point on the partial denture; and determining a shape control coefficient of an adjacent voxel of the target occlusal point on the transparent bracket according to the slippage trend and the slippage transmission trend of the target occlusal point at each moment. By adopting the system, the occlusion relationship can be accurately predicted, so that the shape control coefficient of voxels on the transparent bracket is accurately determined, and the shape of the transparent bracket is accurately adjusted.

The utility model discloses a multipurpose measuring scale for dental diagnosis and treatment, which comprises a measuring scale body and a sliding component, the measuring scale body comprises a horizontal scale, a Y-shaped fork, a side arm and a side stick, the Y-shaped fork is fixed at the upper end of the horizontal scale, and the sliding component comprises a measuring scale sliding block and a sliding block locking screw. The measuring scale sliding block comprises a measuring scale sliding block component A, a measuring scale sliding block component B, a measuring scale sliding block component M and a sliding block assembling screw. The multifunctional measuring device is a single multifunctional measuring device for measuring the length and width of a dental arch, the occlusion horizontal plane of a false tooth, the vertical suction distance, the size of the tooth, the size of an interdental space and the like, and plays an important role in the diagnosis and treatment processes of complete false teeth, immediate false teeth, movable partial false teeth, complete reconstruction, implant support false teeth or fixed complete dental arch repair; the novel multifunctional measuring scale is used for replacing various traditional measuring tools, so that the tool types in dental diagnosis and treatment are greatly simplified.

The utility model discloses a removable partial denture support belongs to false tooth technical field, including support subassembly, the support subassembly includes support frame, the side surface of support frame is established with a set of positioning hole, the top of support frame is equipped with a set of positioning seat, the side surface of every positioning seat all is connected with false tooth body, the inner side wall of every positioning hole all is established with the thread hole, the inner side wall of every thread hole all is established with the accommodation slot, the side surface of every mounting screw all is established with cross type draw -in groove. That removable partial denture support, through positioning hole and positioning seat adaptation, it can be convenient and fast to install false tooth body, and cooperate mounting screw and accommodation slot, thread hole and bolt hole adaptation, and cross type draw -in groove's use, it can be convenient and fast to fix false tooth body positioning, and can be convenient and fast to tear open partial denture body and support frame, and it has improved the functionality of the equipment.

The present disclosure provides to a multi-layer, heat moldable dental prosthetic articles, including full and partial dentures. More specifically, the present invention provides a dental prosthetic device comprising a remoldable material, such as a high-impact thermoplastic material, which conforms to at least a portion of a dental arch, and at least one heat moldable tooth-like structure contiguous with or otherwise associated with a heat moldable gum layer.

A method according to the disclosure herein includes producing, via additive manufacturing, a first mold portion having a first recess based on a tooth portion of a patient mouth; producing, via additive manufacturing, a second mold portion having a second recess based on a gum portion of the patient mouth; positioning at least one artificial tooth in the first recess; aligning the first mold portion with the second mold portion to form a mold assembly having a cavity defined by the first recess and the second recess; filling the cavity with a resin; and removing a partial denture from the mold, the partial denture formed by the resin and the at least one artificial tooth.

Method for manufacturing a removable partial dental prosthesis, comprising steps of: a) manufacturing at least one monolithic block comprising an artificial tooth part and an artificial gum part, the monolithic block comprising at least one first assembly member, b) manufacturing a frame configured to support the monolithic block, the frame comprising at least one second assembly member, then c) assembling the monolithic block with the frame by fitting the first assembly member with the second assembly member forming the removable partial dental prosthesis. Figure for abstract: Fig. 4B

The utility model discloses a kind of casting support removable partial denture, belong to denture technical field, including support main body, the outer surface of support main body is equipped with two reinforcing wings, the right side of support main body is opened with symmetrical clamping hole, the left side of support main body is fixedly connected with symmetrical chuck, the inside of support main body is equipped with positioning mechanism, the inner bottom wall of support main body is opened with four positioning grooves, the inside of each positioning groove is clamped with clamping column, the top of each clamping column is fixedly connected with base, the surface of base is equipped with silica gel buffer pad, the inner bottom wall of support main body is installed with four baffle. The stability of support main body connection can be increased by reinforcing wing, the cooperation of positioning groove and clamping column is utilized, base is conveniently installed and positioned, base can be utilized to stably support denture main body, increase the stability when denture main body is worn, avoid affecting people's use.

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 invention discloses a preparation guide plate capable of positioning an occlusal support concave part, a related bur and a manufacturing method of the preparation guide plate. The part, corresponding to a to-be-ground area of an adjacent tooth, of an adjacent tooth covering structure of the preparation guide plate is of an opening structure, the opening structure corresponding to the to-be-ground area of the adjacent tooth is close to an odontia area covering structure, and a guide plane is formed between the opening structure corresponding to the to-be-ground area of the adjacent tooth and the adjacent tooth covering structure; the guide plane is arranged along the direction of a false tooth in-position path; the part, corresponding to the occlusal support concave part, of the adjacent tooth covering structure is of an opening structure, and the edge of the opening structure corresponding to the occlusal support concave part extends in the long axis direction of adjacent teeth to form an occlusal support concave part positioning guide rail; and meanwhile, a bur inlet is formed in the side wall of the occlusal bracket concave positioning guide rail. According to the invention, the preparation of the occlusal support recess is kept consistent with that of the occlusal support recess designed on a digital model in advance, and the manufacturing of the removable partial denture stent is completed at the same time. The method has the advantages of simple clinical operation, high precision and reduction of the number of doctor seeing times of the patient.

A method for manufacturing a removable partial denture, comprising the steps of: a) manufacturing at least one monolithic block comprising an artificial tooth portion and an artificial gingiva portion, the monolithic block comprising at least one first assembly member; b) manufacturing a framework configured to support the monolithic block, the framework comprising at least one second assembly member; and c) assembling the monolithic block with the framework by interlocking the first assembly member with the second assembly member, thus forming the removable partial denture. Figure for the abstract: Fig. 4B

The utility model discloses a false tooth fastener, and relates to the technical field of movable partial false teeth. The false tooth fastener comprises a false tooth metal support body, fastener bodies are arranged at the two ends of the false tooth metal support body, and medical rubber sleeves and food-grade metal rods are arranged in the two fastener bodies; the food-grade metal rod can be adjusted on site according to the tooth shape of a customer, so that the fastener body is more tightly attached to the teeth of a patient, and the food-grade metal rod gives consideration to flexibility and rigidity, so that enough supporting force is provided while the adjusting requirement is met, the fastener body is prevented from being easily deformed, and the service life of the fastener body is prolonged. The false tooth metal bracket main body is prevented from easily falling off; saliva or other acidic substances in the oral cavity can be prevented from directly contacting with the food-grade metal rod, so that the service life of the food-grade metal rod is prolonged.

This invention provides a digital fabrication method for removable partial dentures. The method utilizes digital design software to obtain data on the oral cavity model to be restored, framework data, missing denture data, and base data, offering convenience and efficiency. Based on the acquired data, processing is performed using additive or subtractive manufacturing methods. Compared to traditional processing methods, this improves fabrication accuracy, saves time, reduces the probability of human error, and lowers the requirements for technicians. Compared to existing digital processes, the step of injecting glue into the base is omitted, avoiding the error rate associated with manual glue injection. Furthermore, based on occlusal data, software adjusts the occlusal relationship, eliminating the traditional steps of sculpting wax-based bases and dewaxing. The process is simple and has promising application prospects.

Abstract: The present invention relates to a dental blank, having an upper surface and a lower surface, constructed of a flesh- coloured material and a tooth-coloured material. The flesh- coloured material and the tooth-coloured material are bonded together. The interface between the materials with elevations and depressions formed in or at the interface extends through an optionally curved plane, which plane is parallel to or oblique to at least part of the surfaces of the blank. In the blank, a region is reserved for at least one partial prosthesis, which region extends over one or more elevations and depressions, and the elevations and depressions are each formed, in particular at least partially, circumferentially in the interface between the materials, the apex of each depression and / or elevation forming at least one line, the line running either in the form of one or more - arithmetic or logarithmic - spiral(s) or in the form of one or more circles.

A method according to the disclosure herein includes producing, via additive manufacturing, a first mold portion having a first recess based on a tooth portion of a patient mouth; producing, via additive manufacturing, a second mold portion having a second recess based on a gum portion of the patient mouth; positioning at least one artificial tooth in the first recess; aligning the first mold portion with the second mold portion to form a mold assembly having a cavity defined by the first recess and the second recess; filling the cavity with a resin; and removing a partial denture from the mold, the partial denture formed by the resin and the at least one artificial tooth.

The utility model relates to the technical field of denture supports, in particular to a removable partial denture support which comprises a first fixing component, a first denture base, a second fixing component, a second denture base, a third fixing component and a hollow groove, the first fixing component and the third fixing component respectively comprise a fixing ring, an adjusting plate is arranged at the lower end of each fixing ring, and the hollow groove is formed in the lower end of each fixing ring. The second fixing component comprises a bracket, an elastic fixing body is arranged on the upper side of the bracket, a positioning frame is arranged on the upper side of the elastic fixing body, a fixing plate is installed on the front side of the positioning frame, and an adjusting hole is formed in one end of the front side of a fixing ring. Fixing is conducted through the first fixing component, the second fixing component and the third fixing component, the firmness of three-point structure fixing is high, the position of the bracket is fixed through the positioning frame, the position of the fixing ring is fixed through the adjusting plate, and the firmness of fixing is improved.

The present disclosure discloses a method for constructing and fabricating a preparation guide plate and a removable partial denture bracket model. The method includes: simulating implant placement in CBCT data of an oral cavity, and determining an implant placement site and an implant placement direction; in oral scan data, generating a simulated implant and marking a direction of an insertion path for a removable partial denture, the direction of the insertion path being consistent with the implant placement direction; marking a guide plane of an inner side of an adjacent tooth at an inner side of an adjacent tooth of the oral scan data based on the direction of the insertion path; and generating the preparation guide plate model based on an edentulous region, the adjacent tooth, and the guide plane of the inner side of the adjacent tooth in the oral scan data and a region to be removed.

A multi-piece dental prosthesis system is provided. The system includes an implant that can be inserted into the patient's bone, an abutment that connects to the implant with a prosthetic screw, and a titanium base that also connects to the abutment. The system can be used to support a crown, a complete denture, or a partial denture.

The present invention discloses a fracture-resistant invisible partial denture and a preparation device thereof, comprising an artificial tooth, a lingual-palatal metal bridge frame and a labial-buccal resin, wherein the lingual-palatal metal bridge frame is composed of a lingual-palatal metal back plate and a occlusal support, wherein the lingual-palatal metal back plate is in close contact with the lingual-palatal side of the abutment, and the occlusal support is located on the occlusal surface of the abutment. The lingual-palatal metal part of the present invention is very thin, and the patient does not have a strong foreign body sensation during wearing, and is relatively comfortable. The lingual-palatal metal part is provided to enhance the denture structure and to allow the occlusal support to resist the bite force, thereby avoiding relying solely on the mucosa to improve the chewing function. The metal part is in close contact with the lingual-palatal side, which can not only play an effective lingual resistance, but also prevent the denture from deforming and dislocating. The improved elastic denture adds a metal lingual-palatal metal back plate and an occlusal support for retention or dispersion of the bite pressure, thereby expanding the clinical indications.

The application provides a removable partial denture digital copying manufacturing method, relates to the oral medical field, and obtains an initial dentition digital model and a worn original denture dentition digital model by performing intraoral scanning on a patient through an intraoral scanner; an original denture digital model is obtained by scanning the original denture worn by the patient through a model scanner; the original denture digital model is registered with the worn original denture dentition digital model through a first design software, so that the original denture digital model is registered to the actual position in the mouth; and a new metal support digital model is generated through a second design software. The removable partial denture digital copying manufacturing method provided in the application can quickly copy and manufacture a new denture for a patient with a dentition defect on the basis of an original denture, can adjust and improve the form structure of a metal support or perform personalized design on part of the metal support, and can better meet the wearing requirements of the patient.

The utility model discloses a removable partial denture which comprises a denture body, a fixing plate is arranged on the lower surface of the denture body, a positioning column is fixedly connected to the inner surface of the denture body, a supporting column is connected to the inner surface of the positioning column in a threaded mode, a second cross-shaped groove is formed in the supporting column, and a second cross-shaped groove is formed in the second cross-shaped groove. And the outer surface of the supporting column is fixedly connected with an abutting-against column, a matching groove is formed in the abutting-against column, the interior of the matching groove communicates with the upper surface of the abutting-against column, a spring abuts against the interior of the matching groove, and the upper surface of the spring communicates with the interior of the false tooth. By matching the limiting columns with the embedding grooves and the sliding grooves in the fixing plate, during mounting, the connecting columns are inserted through the sliding grooves, and the limiting columns are correspondingly embedded into the embedding grooves, so that mounting is convenient, the moving range of the false tooth can be preliminarily limited in the mounting process, the accurate mounting position of the false tooth is ensured, and the mounting efficiency is improved.

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.

The application relates to the technical field of denture manufacturing, and discloses a metal support removable partial denture digital design and manufacturing method. The manufacturing method comprises the following steps: scanning three-dimensional data of a patient's intraoral dentition to obtain an initial dentition model and determine a design scheme of a metal support; scanning three-dimensional information data of the intraoral dentition after abutment preparation to obtain a post-abutment preparation dentition model; designing the metal support according to the post-abutment preparation dentition model, and performing physiological adjustment on the metal support to obtain a metal support model with an assembly structure; obtaining a metal support-residual tooth model and a free end mucosa-residual tooth model according to the metal support model, and registering the two models with the post-abutment preparation dentition model to obtain a free end mucosa-metal support actual position model; and designing and manufacturing artificial teeth and a base according to the free end mucosa-metal support actual position model. The manufacturing method can reduce the complex process in the traditional removable denture manufacturing method, and improve the manufacturing precision and stability of the prosthesis.

A method for producing partial dental prosthesis having at least one surface for forming a chewing surface of a posterior tooth is provided. The method includes (i) providing a composite material with at least one organic binding agent and solid particles that consist of glass as filler; and (ii) applying a laser to at least some regions of a surface of the chewing surface such that the at least one organic binding agent is burnt off in laser-treated regions and the solid particles are melted and fused together to form a continuous enamel layer.

This invention relates to the field of removable partial dentures, and more particularly to a method and system for generating an electronic design sheet for removable partial dentures. The method includes: acquiring an image of a paper design sheet for a target user; mapping each tooth onto an electronic design sheet based on the image; acquiring partial images from the image including the abutment, clasps, base, and all teeth; identifying the position of at least one artificial tooth to be installed in the partial images and marking it in a first intermediate electronic design sheet; mapping the outlines of the abutment, clasps, and base onto the first intermediate electronic design sheet; designing the connectors and drawing them in a second intermediate electronic design sheet; and optimizing the design through manual modification to obtain the electronic design sheet for the removable partial denture. This method enables the rapid and accurate generation of the electronic design sheet for removable partial dentures.

This invention relates to a dental blank having an upper surface and a lower surface, comprising a flesh-colored material and a tooth-colored material. The flesh-colored material and the tooth-colored material are bonded together. At the interface between the materials, there are protrusions and depressions formed in or at the interface, the interface extending through an optionally curved plane parallel to or inclined to at least a portion of the surface of the blank. In the blank, a region is reserved for at least one partial prosthesis, extending over one or more protrusions and depressions, and the protrusions and depressions are each circumferentially formed, particularly at least partially circumferentially formed, at the apex of each depression and / or protrusion forming at least one line extending in the form of one or more arithmetic or logarithmic spirals or in the form of one or more circles.

The application discloses a flat design communication method for removable partial dentures, comprising the following steps: S1, determining the basic information of outpatients, patients and doctors; S2, filling in the problems found through plaster model analysis and the corresponding solutions, including whether the suspected tooth is loose, whether the tooth is considered to be extracted in the later period, or whether the upper and lower occlusions are particularly tight to cause the inability to repair the defect position through a long ring body and artificial resin teeth; S3, determining the denture in-place direction, the selection of a large connecting body, the selection of a clasp and the selection of a support; S4, describing tooth preparation; S5, clearly defining the height, width and thickness of tooth preparation, clearly defining the in-place angle direction of the denture, marking the problems needing attention during tooth grinding and displaying a general design scheme. The application solves the design problem of doctors for partial dentures, greatly saves the diagnosis and treatment time, liberates the hands of doctors, clearly expresses the design scheme communication, improves the medical skill communication efficiency and improves the patient experience.