13 results about "Removable partial denture" patented technology

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 application provides a denture design method, comprising the following steps: obtaining two-dimensional oral panoramic film and three-dimensional intraoral scanning data of a patient; calculating the radiological bone loss proportion of each tooth, and obtaining the image reliability component of each tooth position in the panoramic film based on the segmentation result; extracting the three-dimensional key point and neck edge contour point set of each tooth; calculating the registration reliability component of each tooth position; fusing the image reliability component and the registration reliability component of each tooth position in the panoramic film to generate an image and registration reliability index; and taking the radiological bone loss proportion and the reliability index of each tooth position as a design constraint to perform automatic design of a removable partial denture. The purpose of improving the clinical scientificity, safety and interpretability of the design scheme is achieved.

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.

The invention provides a cross-modal registration removable partial denture design method. The cross-modal registration removable partial denture design method comprises the following steps: acquiring a two-dimensional oral panoramic film and three-dimensional intraoral scanning data of a patient; the radiology bone loss proportion of each tooth is calculated, and the image credibility component of each tooth position in the panoramic film is obtained based on the segmentation result; extracting a three-dimensional key point and a neck edge contour point set of each tooth; calculating a registration credibility component of each tooth position; fusing the image credibility component of each tooth position in the panorama and the registration credibility component to generate an image and registration credibility index; and taking the radiology bone loss proportion and the credibility index of each tooth position as design constraints, and performing automatic design of the removable partial denture. The aim of improving clinical scientificity, safety and interpretability of the design scheme is achieved.

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.

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.

The present application relates to removable partial denture technical field, especially in a kind of removable partial denture paper design single to the method and system of electronic design single, method includes: obtaining the image of paper design single of removable partial denture designed for target user, according to image each tooth is mapped to electronic design single, from image obtaining local image containing support, clasp, base and all teeth;Local image is identified, at least one tooth position to be installed artificial tooth is determined and is marked in the first intermediate electronic design single, and the contour of support, the contour of clasp and the contour of base are mapped to the first intermediate electronic design single, design connector and draw in the second intermediate electronic design single, optimization is carried out by artificial modification mode, and the electronic design single of removable partial denture is obtained.Can quickly and accurately determine the electronic design single of removable partial denture.

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.

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.

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.