85 results about "Edentulous mandible" patented technology

The invention discloses an edentulous jaw dental implant positioning method combined with depth variation reasoning. The method comprises the following steps: S1, generating optimized medical image data; s2, generating a jaw bone three-dimensional reconstruction model of the edentulous jaw patient; s3, generating anatomical feature data; s4, generating a preliminary implant positioning scheme; s5, generating a local bone reconstruction simulation result; s6, performing dynamic interaction on a local bone reconstruction simulation result and the preliminary implant positioning scheme, optimizing the preliminary implant positioning scheme through a depth variation inference model, and generating an implant optimized positioning scheme including mechanical stability and biomechanical performance evaluation; and S7, based on the implant optimization positioning scheme, generating implant guide plate design data and surgical navigation data in combination with the jaw bone three-dimensional reconstruction model of the patient. According to the method, the final implant positioning point obtains a globally optimal solution in the aspects of long-term stability and biological adaptability.

The invention relates to the technical field of information, and particularly provides a complete denture arrangement virtual simulation method and system, and the method comprises the steps: obtaining the medical record data of a user; the medical record data comprises edentulous jaw soft and hard tissue data, jaw bone data, alveolar ridge morphological parameters, jaw position relation data and facial feature data; determining an initial dental arch curve based on the medical record data; inputting the initial dental arch curve and preset aesthetic parameters into a preset deep learning model to obtain a plurality of initial tooth arrangement schemes; screening the plurality of initial tooth arrangement schemes according to tooth arrangement constraint conditions to obtain tooth arrangement schemes meeting constraints; the tooth position and angle of each tooth arrangement scheme meeting the constraint are adjusted until the preset occlusion balance condition is met, and the first tooth arrangement scheme is obtained, so that the tooth arrangement scheme efficiency of the complete dentures can be improved on the premise that the quality of the tooth arrangement scheme of the complete dentures is guaranteed.

The invention provides a multi-source data fitting method and system for oral edentulous jaw implantation, and the method comprises the steps: S1, assembling a scanning rod on an implant of the oral cavity of a patient, carrying out the intraoral three-dimensional scanning of the scanning rod, and obtaining the intraoral scanning data of the three-dimensional positions of all implants; s2, assembling an implant surface scanning positioner on the first implant, performing extraoral three-dimensional photography on the facial information of the patient and the visual target, and obtaining the facial information of the patient and three-dimensional position facial scanning data of the first implant corresponding to the facial information of the patient; and S3, performing three-dimensional coordinate system alignment processing on the three-dimensional position intraoral scanning data of all the implants and the three-dimensional position facial scanning data of the first implant, so that the three-dimensional position intraoral scanning data of all the implants are registered with the facial information of the patient, and generating a temporary restoration model. According to the invention, the precise relation between all the implants in the oral cavity and the facial information of the patient can be established, so that the restoration adaptive to the personalized features of the facial of the patient is generated.

The invention provides an edentulous jaw implantation operation teaching system and method based on a virtual reality technology, and the teaching system is a tooth implantation operation training system based on a VR technology, and comprises a personal model module, a virtual operating room module, a user interaction module, and an equipment display module. The personal model module is used for constructing a personalized anatomical model containing an edentulous jaw bone, a neural tube and a safety area by using CT data of a patient; the virtual operating room module builds a scene through Unity and builds a high-precision surgical instrument model through three-dimensional design software; the user interaction module is connected with the personal model module and the virtual operating room module, and integrates a collision detection algorithm in a Unity engine to realize virtual instrument interaction and feedback; the equipment display module obtains and displays operation parameters in real time through calculation and early warns risks; according to the invention, key operation parameters can be fed back in real time, students are assisted to deepen understanding of operation procedures, and practical skills and comprehensive ability are improved.

The invention discloses a method and a device for determining a movement track of a mandible and electronic equipment. The method comprises the steps that an auxiliary part, fixed to the gingiva, in the mouth of a target object is scanned through intraoral scanning equipment, intraoral scanning data are obtained, and the auxiliary part is provided with a feature structural part; acquiring mark point track data corresponding to the mark points on the feature structural component through face scanning equipment; and according to the mark point trajectory data and the intraoral scanning data, determining the motion trajectory of the mandible of the target object. The technical problem that mandible movement measurement in the prior art is not suitable for edentulous jaw patients is solved.

The invention relates to the field of medical instruments, in particular to an edentulous jaw simulation implantation perforation device and a preparation and use method thereof.The edentulous jaw simulation implantation perforation device comprises a jaw bone model of a lower jaw, the jaw bone model is provided with a hollowed-out part, and a bone block is arranged in the hollowed-out part and used for simulating an alveolar bone of an area to be implanted; a pressure sensor is mounted at the bottom of the hollow part and used for simulating a pressing groove neural tube, and the pressure sensor is used for giving an alarm when the planting instrument enters a sensing area of the pressure sensor. According to the invention, a real human body edentulous jaw anatomical structure is highly restored, a training platform which is extremely similar to a real operation environment is provided for an operator, and the sense of reality of training is remarkably enhanced. The bone block material and the pressure sensor embedded in the device can provide tactile sense and force sense feedback in real time, help doctors to master operation skills more accurately in a simulated operation, and effectively improve operation skills.

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

The invention discloses a complete denture intelligent design method based on multi-task collaborative deep learning, and is applied to the technical field of oral rehabilitation. Comprising the following steps: generating an edentulous jaw model after tissue surface buffering through an edentulous jaw buffering area mask self-encoding network; generating a model after undercut filling by adopting an in-place lane direction undercut filling algorithm; generating a complete denture arrangement position based on the multi-rigid body posture prediction network; segmenting an abutment boundary from the edentulous jaw model by using a deep learning model; taking the base boundary and the tooth arrangement position of the complete denture as constraint conditions, constructing a composite loss function in combination with the curvature of the generated surface, and generating a base model by using a conditional generative adversarial network. According to the automatic core tooth arrangement step, errors caused by human factors are reduced, the consistency and reliability of denture design quality are remarkably improved, the wearing comfort and long-term stability of final dentures are enhanced, and popularization and application of a high-quality complete denture repair technology in primary medical institutions are facilitated.

This invention discloses a personalized Gothic arch component for dental implant restoration and a method for determining digital jaw position relationships, belonging to the field of medical device technology. The component includes a mandibular tracing needle fixation bracket, a tracing needle, a maxillary Gothic arch tracing plate, and fixing screws. The mandibular tracing needle fixation bracket comprises a Y-shaped tracing needle positioning frame and a personalized implant fixation bracket. The tracing needle is fitted into the central groove of the mandibular tracing needle fixation bracket via a shaft-hole fitting structure. The maxillary Gothic arch tracing plate is U-shaped and adapts to the maxillary dental arch. Both the mandibular tracing needle fixation bracket and the maxillary Gothic arch tracing plate are provided with screw channels for matching fixing screws. The method for determining digital jaw position relationships includes: taking a digital impression; designing and 3D printing the above components using CAD / CAM; determining the vertical distance and centric relationship using the personalized Gothic arch; and transferring the maxillary-mandibular relationship for edentulous full-mouth implant restoration based on occlusal records and electronic facebow data, thereby improving the clinical applicability of the restoration.

1. The name of the product under this design: Edentulous Dental Implant Scanner (GMS). 2. Application of this design product: used for intraoral scanning in the field of oral medicine. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The utility model belongs to the technical field of edentulous jaw implantation, and particularly relates to an intraoral scanning rod for edentulous jaw implantation, which comprises an intraoral scanning rod and a scanning rod positioning frame, the intraoral scanning rod comprises an implant connecting part, and the top of the implant connecting part is vertically connected with an extension connecting part. The top of the extension connecting part is vertically connected with a scanning recognition part, the extension direction of the scanning recognition part is opposite to that of the implant connecting part, a groove is formed in the top of the scanning recognition part, the cross section of the groove is an isosceles triangle, and the vertex of the isosceles triangle is aligned with the right-angle position of the scanning recognition part and the connecting part; a handle is arranged on the side face of the scanning rod positioning frame, the scanning rod positioning frame is used for being matched with the size of a scanning head of a scanner, and the scanning recognition part is placed within the range of the scanning rod positioning frame. And the internal scanning rod converts the positions of the dental implant dispersed without teeth to be concentrated in the range of a common oral scanning probe, so that the problems of large manufacturing error, over-high cost and low mold taking efficiency of the conventional dental implant impression are solved.

The utility model discloses an oral cavity all-dimensional scanning and positioning device for tooth implantation, and relates to the technical field of tooth implantation, the oral cavity all-dimensional scanning and positioning device comprises gingiva and an implant fixed in the gingiva, the upper part of the implant is provided with a positioning shell, the upper part of the positioning shell is provided with a groove and a concave point, one side of the positioning shell is provided with a through groove, and the through groove is provided with a through hole; an abutting limiting mechanism is arranged in the middle of the transmission shaft and comprises an upper supporting plate movably arranged in the middle of the transmission shaft in a penetrating mode, sliding plates are arranged on the two sides of the interior of the upper supporting plate in a sliding mode, and rubber limiting blocks are fixedly arranged on the sides, away from the transmission shaft, of the sliding plates; the fastening mechanism comprises a lower supporting plate movably arranged on the lower portion of the transmission shaft in a penetrating mode, and barb type fastening plates are rotationally connected to the two sides of the lower supporting plate. The problems that no obvious feature scanning points exist in the oral cavity of an edentulous jaw patient and the splicing point position error of a traditional scanning and positioning device is large, so that accurate data is influenced are solved.

The utility model discloses a combined nail for an edentulous jaw implantation guide plate, which comprises a retention nail and a positioning nail, and the retention nail is detachably connected to the top of the positioning nail; the positioning nail comprises a nail head and a positioning rod, the positioning rod is connected with one end of the nail head, and a connecting groove used for being connected with the retention nail is formed in the end, away from the positioning rod, of the nail head. The nail head comprises a hexagonal part and a conical part, the hexagonal part is connected with the positioning rod, and the connecting groove is formed in the end, away from the hexagonal part, of the conical part. The combined nail disclosed by the technology is applied to the technical field of edentulous jaw implantation, the registration, positioning and fixing effects on an implantation guide plate are good, by using the combined nail, the implantation precision can be improved, the operation stability can be improved, the hole preparation precision and the hole preparation quality can be improved, and the practicability is high. More rational conditions are provided for postoperative recovery and combination of the dental implant and the alveolar bone, and the success rate of an edentulous jaw implantation operation is increased.

The invention relates to the technical field of edentulous jaw implantation repair, in particular to a personalized multipurpose rigid connecting rod which comprises a main body structure integrally formed by a plurality of connecting rod sections, a plurality of through type positioning cavities formed between the connecting rod sections and functional interfaces. The through-type positioning cavity and the functional interface are through-type cavities with the same shape, and the main body structure is obtained based on preoperative three-dimensional data fusion modeling of a patient. On the basis of integrated arrangement of a single digital model and integral forming, a rigid geometric constraint relation (such as coplane, coaxial and distance correlation) is established for the through type positioning cavity and the functional interface in the modeling stage for the first time, so that the through type positioning cavity and the functional interface are converted into an organic whole with logic coupling and function cooperation from independent parts which exist in parallel physically; therefore, the core problems of assembly error accumulation, weak interface strength, non-reproducible spatial relationship and the like of a traditional splicing type, adhesive type or segmented printing connecting rod are solved.

The invention relates to a computer-implemented method for processing an image of a dentate region of interest of a patient, the method comprising: a) obtaining an image of the jaws of a patient on which a region of interest is defined comprising a dentate sector with one or more teeth to be extracted; b) processing the region of interest in order to predict at least one edentulous sagittal 2D section, referred to as edentulous 2D section, the edentulous 2D section being a sagittal section perpendicular to the occlusion curve representative of a residual bone volume of a bony plate at an extraction site after extraction and healing, the processing implementing at least one model for predicting an edentulous section trained on the basis of pairs of dentate and edentulous 2D sections that are symmetrical with respect to the axis of symmetry passing through the middle of the mandibular symphysis of a reference patient for the lower jaw and by the median axis passing through the nasal spine for the upper jaw.

The invention discloses a posterior tooth arrangement method and device based on measurement of an alveolar ridge intercrest line angle and a medium. The method comprises the following steps: acquiring an occlusion record of a patient; according to the occlusion record of the patient, establishing an upper and lower jaw edentulous jaw three-dimensional model of the patient; determining an occlusal plane of the three-dimensional model, and performing preliminary tooth arrangement on the three-dimensional model according to the occlusal plane; carrying out alveolar ridge intercrest line angle measurement on the three-dimensional model after preliminary tooth arrangement; and modifying the three-dimensional model after preliminary tooth arrangement based on an alveolar ridge intercrest line angle measurement result to obtain a posterior tooth arrangement scheme. According to the method, the included angle between the connecting line of the upper and lower jaw alveolar ridges and the occlusal plane is used as a basis for judging the arrangement mode of the back teeth, three-dimensional reconstruction is carried out on the oral cavity of the patient, digital measurement of the alveolar ridge intercrest line angle of the patient is completed in a computer, and the generated arrangement scheme of the back teeth can recover the relation between the upper and lower jaws of the patient more reasonably; the retention, the stability and the chewing performance of false tooth wearing are improved.

The invention discloses a positioning device for edentulous jaw oral implantation, and relates to the technical field of oral implantation, the main points of the technical scheme are that the positioning device comprises a support frame, the upper surface of the support frame is slidably connected with a support rod, and the positioning device also comprises an upper positioning plate and a lower positioning plate; the upper positioning plate and the lower positioning plate are arc-shaped, the end parts of the upper positioning plate and the lower positioning plate are rotationally connected, and operation holes are formed in the upper positioning plate and the lower positioning plate; a control rope is rotationally connected to the side wall of the upper positioning plate, and one end of the control rope is fixedly connected to the upper end of the supporting rod; a pull rope is fixedly connected to the side wall of the lower positioning plate, and one end of the pull rope is arranged at the end of the supporting frame. The invention has the advantages that the flushing fluid can be effectively prevented from flowing into the oral cavity of a patient and flowing into the esophagus or trachea through the pharynx of the patient, the patient is prevented from swallowing the flushing fluid into the abdomen, the body health of the patient is guaranteed, and convenience is brought to medical personnel and the patient.

The invention discloses a construction method for post-implantation second-stage digital repair of an edentulous jaw patient. The construction method comprises the following steps: acquiring a preoperative occlusion CT image; after an operation, a scanning rod is mounted on the composite abutment or the implant; obtaining a scanning rod type postoperative CT image and oral cavity scanning data; reconstructing the skull according to the postoperative CT image to obtain a first three-dimensional model; fitting the oral cavity scanning data with the first three-dimensional model to obtain a second three-dimensional model; reconstructing the skull according to the preoperative occlusion CT image to obtain a third three-dimensional model; fitting the second three-dimensional model and the third three-dimensional model to obtain oral cavity scanning data with correct occlusion; based on oral cavity scanning data with correct occlusion, post-repair is designed. According to the method, the printing steps of the 3D model are reduced, the production time is shortened, and the precision of the restoration is improved. Moreover, the method prevents a doctor from repeatedly wearing and dismounting accessories in the mouth of the patient, simplifies the steps, improves the chair-side efficiency, and improves the experience feeling of the patient.

The invention relates to an improved guide splint (1) for dental procedures in fully or partially edentulous patients, having a lower face (1a) with an anatomical shape designed to rest on a jaw of the patient and comprising at least one through hole (2) configured to serve as a reference for a dental procedure. The splint (1) of the invention also comprises at least one recess (3) on the lower face of same configured for snap-fit engagement with at least one lug (T) protruding from the gum.

The application discloses a kind of digital determination method and system of jaw position relation, it is related to stomatology digital technology field, comprising: obtaining the three-dimensional data of patient and mandibular three-dimensional motion trajectory;According to three-dimensional data and mandibular three-dimensional motion trajectory, reference coordinate system is constructed;Simulated three-dimensional motion trajectory is constructed based on mandibular three-dimensional motion trajectory, and simulated plane is constructed based on three-dimensional data and reference coordinate system;The intersection of simulated three-dimensional motion trajectory and simulated plane is calculated;According to the density distribution of intersection point, determine the optimal point, and obtain the position of mandible according to the three-dimensional reconstruction of optimal point.The application applies three-dimensional data acquisition, three-dimensional data registration and fusion technology, without the assistance of intraoral physical support, occlusal record material or old denture, through individual mandibular three-dimensional motion trajectory feature analysis, the position relationship of three-dimensional reconstruction edentulous maxilla and mandible of patient is realized, and the direct digital determination of the jaw position relationship of edentulous patient is realized.

The present invention provides a dental tray for making an initial impression of an edentulous jaw, the dental tray comprising: a body provided with a plurality of through holes for fixing an impression material; the handle is connected with the body; wherein the body is similar to an anatomical part in an oral cavity in shape. According to the method, the applicability, the universality and the accuracy of the preparation of the primary impression of most patients with complete toothless teeth can be improved.

The embodiment of the invention relates to an occlusal height obtaining method, device and equipment and a medium, and the method comprises the steps: obtaining a dental arch model corresponding to an edentulous jaw, and obtaining an occlusal object model of an occlusal object corresponding to the dental arch model; splicing the dental arch model on the occlusion object model to obtain a spliced model; and acquiring the occlusion height of the edentulous jaw according to the splicing model. According to the technical scheme, the occlusion height of edentulous jaw data is obtained, and technical support is provided for edentulous jaw false tooth design and the like.

The utility model discloses a scanning and positioning assembly for oral implantation and a scanning and positioning device for edentulous jaw implantation. The scanning and positioning assembly comprises a scanning main body and at least one positioning piece, the scanning main body comprises a scanning part and an interface part which are sequentially arranged from top to bottom, and one end of the positioning piece is arranged on the periphery of the scanning part in a sleeving manner; by the adoption of the technology, the accuracy of intraoral scanning is remarkably improved, and a more reliable data basis is provided for follow-up oral cavity restoration work; besides, the connecting structure of the scanning main body and the positioning piece is simple, the positioning piece can be conveniently connected in the limited space in the oral cavity, especially the position of the rear alveolar tooth, the preparation time before scanning is greatly shortened, and the efficiency of scanning work is improved; and meanwhile, the operation difficulty and the probability of misoperation are reduced, and even an operator with relatively insufficient experience can smoothly complete the connection operation.

The present invention discloses an oral scanning method and an oral scanner based on the fusion of posture information and point cloud data, which belongs to the field of medical devices and includes the following steps: S1, selecting facial feature points with fixed positional relationships relative to the maxillary alveolar ridge and the mandibular alveolar ridge as facial markers for marking; S2, calculating the spatial positions of the oral scanning sensor and the posture sensor fixed on the oral scanner relative to the facial markers; S3, obtaining multi-angle point cloud data; S4, obtaining full-mouth point cloud data; S5, obtaining an intraoral scan model; S6, reconstructing a three-dimensional digital model of the soft and hard tissues of the edentulous jaw; S7, using image processing software to calculate the soft tissue thickness of the edentulous jaw area in the three-dimensional digital model of the soft and hard tissues of the edentulous jaw. The present invention adopts the above-mentioned oral scanning method and oral scanner based on the fusion of posture information and point cloud data, which can significantly reduce or avoid errors that occur in the splicing process of oral scanners that only rely on point cloud data, and improve the accuracy and efficiency of edentulous jaw digital impressions.

The invention relates to the technical field of denture occlusal surface image processing, in particular to an intelligent occlusal vertical distance reconstruction device for an edentulous patient and an algorithm of the intelligent occlusal vertical distance reconstruction device, and the intelligent occlusal vertical distance reconstruction device comprises the intelligent occlusal vertical distance reconstruction device and the intelligent occlusal vertical distance reconstruction algorithm. The method is used for positioning the gingiva position of an edentulous jaw patient, and the purpose of reconstructing the occlusion vertical distance is achieved by matching the occlusion vertical distance before tooth loss with the bone face capacity before tooth loss through an intelligent occlusion vertical distance reconstruction algorithm; the method is easy to operate, high in practicability and very convenient to use, the occlusion vertical distance can be effectively reconstructed, the occlusion distance of all parts of the gingiva can be reconstructed in a regional mode, and the false tooth manufactured through the data has the function of supporting the anterior bone face of a patient without teeth.

The application discloses a kind of edentulous jaw implantation repair methods, it is related to dental implant repair technical field, comprising: edentulous jaw patient reception and routine information collection;Strategic implantation micro screw;Preoperative data acquisition and scheme planning: mouth scanning obtains diagnostic denture data as A.stl, record jaw relation as data A.dcm, complete implantation scheme planning;With micro screw as benchmark registration navigation, data A is guided implantation simultaneously;Immediate postoperative impression, record scanning data B.stl;Temporary repair production and AI data accumulation, carry out AI data accumulation and training;Make final restoration, data integration analysis, analyze implant / gap deviation;Deviation determination and optimization, carry out data leave file iteration.The application forms rigid reference and data interconnection, breaks information island, unifies implantation planning and navigation adaptation, can effectively improve efficiency and experience, closed-loop feedback continuous optimization, data can be traced.

The utility model discloses a high accuracy toothless jaw scanning rod relates to toothless jaw implantation technical field, including scanning body, the inside of scanning body is equipped with fixed establishment, the one end of scanning body is installed with adjusting mechanism, the lower end swing mounting of scanning body is equipped with the implant nail, the bottom fixed of implant nail is equipped with the base, the cavity in scanning body and implant nail top are all horn -like, in this way convenient to embed and install the jawbone implant nail, after the screw head and the stud pass through the countersunk head and the inner hole in proper order, the screw head can be flush with the upper end surface of scanning body, can represent that the stud has been screwed to the jawbone implant nail, namely represent that the installation of scanning body is in place, can determine whether scanning body is installed in place with the naked eye, convenient and fast, at this time the external thread of stud bottom can be inserted into the internal thread of implant nail top, and then screwing its screw head, the thread installation between external thread and internal thread is convenient, in this way convenient to fasten and install scanning body, and then the intraoral installation of scanning body is convenient.

The application relates to the fields of oral medicine and digital manufacturing technology, and discloses a segmented embedded structure digital design and manufacturing method for a toothless jaw implant bridge, which comprises the following steps: collecting and preprocessing multi-modal data of a patient; reconstructing a three-dimensional model and marking key anatomical markers; virtually arranging teeth for the patient and optimizing implant positioning; designing a bridge segmentation and embedded connection structure; performing biomechanical simulation and optimizing structure parameters to obtain an optimized bridge segmentation model; performing digital manufacturing and post-processing; converting the optimized bridge segmentation model into a physical bridge segmentation and performing post-processing; performing clinical trial and completing final prosthesis production; through steps 2, 4 and 5, the balance between biomechanics and clinical experience is realized through stress and comfort double-index control; through bridge segmentation, single-time positioning resistance is reduced, and positioning success rate and positioning accuracy are improved.

The embodiment of the invention provides a full-oral implant immediate repair temporary tooth manufacturing method, a multifunctional implant guide plate manufacturing method and electronic equipment, and belongs to the technical field of oral implant. The obtained multifunctional implantation guide plate comprises a retention device, a dentition occlusion stabilizing device, an osteotomy site marking device, an implant guide implantation device and a relative position marking device, and the devices are used for assisting oral implantation operation of an edentulous jaw patient, so that intraoral operation such as osteotomy operation and implant implantation can be accurately and quickly completed; the invention relates to a relative position marking device for an implant guide implanting device, which shortens intraoral operation time of an implanting operation. And data matching of extraoral scanning and intraoral scanning is more accurate, so that the precision of temporary tooth design and manufacturing is improved, and the repair process of temporary tooth design and manufacturing is simplified.