46 results about "Edentulous mandible" patented technology

The invention relates to a making method of temporary immediate prosthesis for edentulous jaw planting. The making method comprises the steps of preparing an upper and lower jaw gypsum model in the mouth of a patient, and making a radiation guide plate on the gypsum model; firstly, obtaining data having the radiation guide plate and the jawbone of the patient by CBCT, and then obtaining individualdata of the radiation guide plate; importing the data into GuideMia planting design software, analyzing the jawbone information in the software, and designing the quantity, the model and the three-dimensional position of a dental implant; and generating a planting guide plate model, through a 3D printing technique, performing printing and shaping, selecting a corresponding repair base station above the implant, through the GuideMia planting design software, outputting the model with the position of the implant and the base station, performing printing and shaping on the model through a 3D printing technique, arraying teeth on the model according to the positions of implant and the base station, and making the temporary immediate prosthesis. The method solves the problem that the patient has the requirement for wearing teeth at the same day, and has the advantages of being high in efficiency and low in cost.

The invention provides a full-process digital manufacturing method of complete dentures. The full-process digital manufacturing method comprises the following steps: acquiring an STL file of three-dimensional data by intraoral scanning of a patient with complete edentulous jaw; putting the median occlusal tray into the mouth, recording the morphology of the mucous membrane surface of the upper jawand the lower jaw and the relative position relation of the upper jaw to the lower jaw, obtaining an STL file of three-dimensional data of the median occlusal tray by scanning; and obtaining a DICOMfile about spiral CT or CBCT of the edentulous jaw patient wearing the median occlusal tray. The full-process digital manufacturing method of the present invention has the advantages as follows: 1, athree-dimensional space about maxillofacial region of the patient is constructed by fitting four digital files, and the occlusal plane in which the patient tries on the dentures and morphology and position of the anterior teeth are set with reference of the anatomical structure of the maxillofacial region of the patient, thereby improving the try-on effect of the dentures; 2, a final impression scanning and copying technology is utilized to accurately manufacture the morphology of a final denture base; and 3, a base plate and a artificial dentition are obtained by adhering the separately cut resin discs with different colors and high strength through adhesive, thereby achieving high cutting precision, high strength of the resin discs and good wear resistance of the artificial teeth.

An impression tray set for edentulous jaw, including a pair of a maxillary impression tray and a mandibular impression tray for use in taking an intraoral impression of an patient including an edentulous patient, and capable of simultaneously recording bite position and height when taking the impression, is provided.

An impression tray set for edentulous jaw is formed by a maxillary impression tray 1 and a mandibular impression tray 2 respectively including a tray main body 4 having a U-shaped groove on which an impression material is to be applied on a front surface side thereof, an engaging part formed on a back surface of the U-shaped groove in a position corresponding to an alveolar ridge of front teeth, and a handle part 6 that is detachably connected to the engaging part, and each of the maxillary impression tray 1 and the mandibular impression tray 2 includes projecting parts 7 being provided on the back surface, at left and right portions of the U-shaped groove in a position corresponding to an alveolar ridge from a first molar part to a premolar part, the projecting parts 7 being used for determining bite position and height in a state in which at least a part of flat top surfaces 7a of the projecting parts 7 contact each other when taking an impression.

The invention relates to a tooth implantation operation training system and method based on AR (Augmented Reality) technology, and the system is characterized in that the system comprises a virtual model modeling module, an AR recognition module, a collision detection module, a force feedback module, an edentulous jaw tissue deformation module, and a surgery operation module; and the virtual model modeling module establishes a three-dimensional model of an edentulous jaw tissue and a virtual operation tool, and other modules are used for operating interaction between a handle at the tail end of force feedback equipment in reality and a virtual tooth implantation environment in a computer to carry out tooth implantation virtual operation training. According to the invention, repeated training can be carried out, the problem of resource shortage in experimental teaching is solved, the sense of reality of training is enhanced, the training cost is reduced, and a user can better understand and understand a tooth implantation operation.

The invention discloses a digital all-in-one guide plate for edentulous jaw implantation and a manufacturing method of the digital all-in-one guide plate. The manufacturing method comprises the steps:acquiring a radiation guide plate, wearing the radiation guide plate in the step S1 in the oral cavity, scanning by using CBCT equipment to obtain CBCT data of the oral cavity, scanning the radiationguide plate by using an optical scanner, fitting the CBCT data and the optical scanning data to obtain implantation data, determining model specifications of the implant and the retention nail according to the implantation data, designing three-dimensional positions of the implant and the retention nail in the jaw bone, exporting data of an implant guide catheter and a retention nail catheter,designing an implant guiding part plug-in according to the data of the implant guiding catheter, designing a retention part plug-in according to the data of the retention nail catheter obtained in the step S3, performing 3D printing on the implantation guide part plug-in and the retention part plug-in according to the data designed in the step S4, and assembling the implantation guide part plug-in, the retention part plug-in and the radiation guide plate to obtain the three-in-one guide plate. The method has the advantages of high operation efficiency, good repairing effect and the like.

The invention consists of a medical implant for anchoring to the malar process of the maxilla, said implant having a head (1) with an angulation of 35° to 55°; an internal or external connector (2) for different types of abutments; an implant body (3) shaped to define an apical and basal portion, said apical portion being threaded all around, and said basal portion having threads on one side and a faceted canoe-thinning shape on the other side for better layering of soft tissues.

The invention also concerns a medical implant system comprising the aforementioned medical implant, a surgical guide and at least one bone drill.

The invention is suitable for rehabilitation of patients suffering from posterior edentulous maxillae with insufficient bone volume and allows for an immediate rehabilitation of the edentulous patient with a reduced treatment time and morbidity, through a considerably less invasive and technically simplified technique.

The invention discloses an intraoral disposable Gothic arch tracer. The intraoral disposable Gothic arch tracer is simple in structure and low in manufacturing cost, the probability of clinical cross infection is reduced due to disposable use, and the intraoral disposable Gothic arch tracer is convenient to popularize and use in a large-scale oral outpatient service; the clinical operation process of determining the median relation of a patient without a tooth jaw by using the arcograph is simple and convenient, the vertical height is adjusted in a modularized mode, the accuracy is 0.5mm, the clinical requirements are completely met, the clinical operation is facilitated, three contour tracing needles which are arranged in a triangular mode ensure the balance and stability of a tracing plate, finally the stability of the median relation is ensured, the tiny deviation of the upper jaw position and the lower jaw position which may exist in the fixation of a conventional intraoral Gothic arch tracer tracing needle is overcome, and the wax bank manufacturing of the upper jaw is completed in advance, so that the accurate positions of the upper closed frame and the artificial tooth arrangement are convenient to transfer by the face arch.

The invention relates to an oral cavity examination ruler for edentulous jaw, in particular to an inspection ruler for measuring mandibular lingual posterior fossa, sublingual spongy tissue, lingual receding and dental arch width. The inspection ruler is composed of a mandibular lingual fossa measuring end, a sublingual sponge-like tissue measuring end, a caliper and a handle part, the mandibularlingual fossa measuring end is assembled and disassembled at one end of the handle part, and the mandibular lingual fossa measuring ends with different diameters can be assembled and disassembled according to needs. The lower jaw lingual bone posterior fossa measuring end rod part is made of resin, and deforms when the probing strength is larger than 100 g. The sublingual sponge-like tissue measuring head is a small metal ball with the diameter of 7 mm, and a transverse line is arranged in the middle of the sublingual sponge-like tissue measuring head to provide a measuring tool for sublingualsponge-like tissue. A measuring jaw of the caliper can perform 60-degree hinge motion, and a distance between the tail end of the measuring jaw and the sublingual sponge-like tissue measuring head isindicated on a dial by a pointer, namely the width of the dental arch. The scales are marked on the measuring jaw through black and white grids, each grid represents 1cm, and the retreating amount ofthe tongue can be indicated. The ruler integrates multiple measurement functions, and is convenient for clinicians to use.

A lower-jaw edentulous jaw implantation assembly, tracker and navigation system and an implantation tool are disclosed. The implantation assembly includes an implant component implanted into a jaw bone and a connection component. The implant component includes adjacent first and second implants. The connection component includes a connection part connected to the implant component and is separatedfrom/cooperates with the implant component through the connection part. The implantation assembly avoids a guide plate arrangement, the adjacent first and second implants are utilized to support theconnection component, and are directly fixed to the jaw bone and an occupied implantation space is extremely small. Beneficial effects are that (1) the implantation precision is greatly improved and apreoperative digitally designed position can be achieved precisely; (2) an implantation zone is completely opened, facilitating flowing of cooling water into implantation holes; (3) an implantation scheme can be adjusted during an operation; (4) an original implantation drill is used and is suitable for parts with poor mouth opening degrees in backteeth zones and narrow implantation zones; and (5) the implantation treatment period is shortened.

This document describes a set of surgical drill guides for the upper and lower jaw, the guides aimed at locating the ideal position for dental implants in edentulous patients. The guides are made up of a surgical stent material from metal or other rigid material that is aligned to provide support and stability of fully edentulous upper and lower jaw to orient surgical drills in the area of operation. The present embodiment comprises a U-shape metal plate provided form or shaped resembling a toothless upper or lower jaw and containing a top surface of the surgical stent that is contacting the soft tissue of maxilla or mandibula and the bottom surface of the stent that has the same shape as a top one.

The invention discloses an oral implantation positioning device for an edentulous jaw. The oral implantation positioning device comprises a front end fixing part, a rear end extending part and a sleeve, wherein the front end fixing part is connected with the sleeve through a first connecting assembly; the rear end extending part is connected with the sleeve through a second connecting assembly; a guide rail groove is formed in the rear end extending part; the sleeve is movably arranged in the guide rail groove through the second connecting assembly; the front end fixing part is arranged to be a plate-shaped piece in a dental arch shape and is fixed on the edentulous jaw; the rear end extending part is a plate-shaped piece extending in the direction far away from the front end fixing part, and the shape of the rear end extending part is subjected to radian setting based on the actual dental arch shape; and the guide rail groove extends in the extending direction of the rear end extending part. According to the specific positions, corresponding to the front end fixing part and the rear end extending part, in the oral cavity of a patient, the deflection angle and position setting of the sleeve can be fixed in advance so as to preset the implantation inclination angle and the implantation position; and meanwhile, an implantation guide plate is formed through the sleeves with different diameters, the direction and position of a drill bit are limited, and implantation of the preset implant is completed.

The invention belongs to the technical field of medical instruments, and discloses an edentulous navigation system and method, and the system comprises an edentulous tracking module which is connected with a workstation module and is used for cooperating with the oral cavity of a patient to track the movement of the patient; and the mobile phone positioning module is connected with the workstation module and is used for drilling the implant nest in the oral cavity of the patient, releasing cooling water and the like. And the workstation module is connected with the mobile phone positioning module and the edentulous jaw tracking module, and is used for receiving infrared signals of the edentulous jaw tracking module and the mobile phone positioning module, obtaining the positions of the positioner and the reference plate in an actual coordinate system through calculation, and performing real-time tracking. According to the invention, extra accessories made by technicians are not needed, so that the planting treatment period is effectively shortened; the connecting assembly for navigation is supported by the implant implanted in the jaw bone in a pure rigid mode instead of mucous membrane support adopted by a guide plate, the positioning precision is higher, and the success rate of edentulous jaw cases is higher.

The invention relates to a method for speculating the midpoint of the lower edge of the rear upper lip of a denture suitable for an edentulous jaw, which comprises the following steps of 1) scanning the alveolar ridge of the edentulous jaw of the upper jaw and the lower jaw to obtain the data D1; 2) scanning to obtain the data D2 of the front face of the patient with the edentulous jaw, and measuring a nasolabial angle A; 3) measuring the length D from the vestibular groove bottom to the lower edge of the upper lip when the patient wears the tooth; 4) establishing a median sagittal plane S inthe data D1, and establishing a straight line L1 between the most salient point of the lip surface of the maxillary alveolar ridge and the vestibular groove bottom point P1; (5) rotating the L1 towards the lip side by (1.29 A-113. 35) degrees with the vestibular groove bottom point as the rotation center, and obtaining a straight line L2; and 6) creating a point P2 on the straight line L2, whereinthe straight line distance between the point P2 and the vestibular groove bottom point P1 is the length D, and obtaining the midpoint of the lower edge of the upper lip after the proper denture is worn. The method can accurately predict the midpoint of the lower edge of the upper lip after the proper complete denture is worn, and further improves the efficiency and precision of the three-dimensional design of the edentulous complete denture.

The invention discloses an auxiliary device for frenum deepening surgery of an edentulous jaw and a manufacturing method of the auxiliary device, belonging to the technical field of medical instruments. The auxiliary device for the frenum deepening surgery of the edentulous jaw comprises a jaw dike and an arc-shaped base plate which are fixedly connected together, wherein the arc-shaped base plateis configured to be erected on the edentulous jaw so as to allow the inner surface of the arc-shaped base plate to be attached to the edentulous jaw, and the jaw dike is arranged on the outer surfaceof the arc-shaped base plate. According to the invention, in virtue of the extension and thickness of the arc-shaped base plate of the auxiliary device, muscle forces of lip-cheek muscles from outside to inside are isolated, and a given false tooth gap is occupied, so poor healing caused by muscle traction or operation failure caused by the fact that a frenum returns to a high position again after an operation can be prevented, and complete attached gingiva can grow on an exposed periosteum surface; and meanwhile, a stripping range in the operation is clearer, a doctor can be indicated or assisted to clarify the stripping range, and operation effect is effectively improved.

The invention discloses a tool for manufacturing a digital planting guide plate. The tool comprises a bracket main body and a positioning assembly, wherein the support main body is a square cylinder with an opening in the upper end, a calibration point, a positioning tray and a plurality of positioning bolt ways arranged around the positioning tray are arranged on a bottom plate of the support main body, the positioning assembly comprises a plurality of universal bearings and a positioning shaft, and the direction, the angle and the depth of an implant are determined through the universal bearings and the positioning shaft. The transverse direction and the longitudinal direction of the universal bearing are determined through a sliding block, a rotating shaft or a movable positioning tray. The device is simple in structure and convenient to use; and by matching with a retention nail, the problem of retention of a patient without an edentulous jaw can be well solved, and the device can be widely applied to the technical field of medical instruments.