34results about How to "Reduce the number of referrals" patented technology

The invention relates to a preparation method of a frame type hollow denture, which has the steps as follows: (1) the maxillary defects are copied, thus preparing a maxillary module, a frame and a denture tissue surface base plate; (2) the hollow part of the denture tissue surface base plate is filled with wax, thus aligning artificial teeth and using the wax for producing a denture grinding surface base plate wax model; (3) silicon rubber are used for complex model of the artificial teeth and the denture grinding surface base plate wax model, thus obtaining a silicon rubber mold; (4) the silicon rubber mold is taken off, the denture grinding surface base plate wax model is scraped by 1.0 to 1.5mm, the silicon rubber mold is worn back, self-curing resin material is used for filling, thus obtaining a denture primary part; and (5) a hole is opened on the denture grinding surface base plate of the denture primary part, the heating is carried out, and the opened hole is sealed again aftermelting and discharging the filled wax for preparation. The frame type hollow denture tissue surface prepared by the method is well contacted with mucous membrane of a patient, thus improving the denture comfort of the patient, reducing the times of the revisits, reducing the clinical medical costs, lowering the processing difficulty of the denture and facilitating the manufacture.

The invention discloses an implantable bone cyst fenestration drainage system, which belongs to the technical field of stomatology and consists of four parts: a fenestration drill, a self-tapping cyst plug, a silicone plug and a torque wrench. The self-tapping cyst plug stabilizes the cyst plug itself and avoids possible damage to adjacent teeth. At the same time, the self-tapping cyst plug has good biocompatibility, which is beneficial to osteogenesis and gingival formation. The implantable bone cyst fenestration drainage system is adopted, and the operation and cyst plug placement are completed at one time, which saves operation time, avoids second-stage operation, and reduces the number of follow-up visits for patients. The invention uses materials that do not need to be frequently replaced, and is convenient for medical personnel and patients to flush themselves, and the flushing is more thorough and the drainage is more sufficient. In addition, the present invention uses materials with strong X-ray opacity, which is convenient for observing the position, angle and relationship with the cyst cavity and the like of the cyst plug through X-ray film.

The invention discloses a technical method for recording the occluding relation in a static state. The technical method comprises the following steps: adopting a secondary in-place method for a dento-maxillary containing unstable factors; obtaining occluding relation records by the secondary in-place method and a wax and light body combined recording method; removing an unstable region which preliminarily obtains a model and then putting an occlusal rest in a mouth for centric occlusion; infusing a light body into a denture base corresponding to the unstable region in a static state in the centric relation position to obtain complete and stable occluding relation records. According to the method disclosed by the invention, occlusion errors caused by interference of the unstable factors canbe avoided for patients with instable occlusion, deviation of loose teeth ad occlusion stress concentration of an edentulate region are prevented, and further the occluding record relation in a physiological status can be reflected conveniently and accurately; the method can be applied to patients with an unstable occlusion relation or poorer occlusion relation caused by other reasons; the generality of the method is improved; moreover, the clinical operation sensitivity is reduced.

The invention relates to a method for accurately matching CBCT data and STL data, which is characterized in that it comprises the following steps: a) bonding radio-blocking materials to teeth, bonding radio-blocking materials to gingival mucosa, or / and b) Carry out CBCT shooting to obtain CBCT data with radio-opaque material information; c) obtain STL data of the oral surface; d) match CBCT data with STL data. A method for accurately matching CBCT data and STL data involved in the present invention can greatly improve the matching accuracy and success rate of CBCT data and STL data, improve patient comfort, reduce the number of follow-up visits, reduce clinical medical costs, and reduce the cost of integrating the two. The difficulty of this kind of data, especially when the number of missing teeth is large, it is convenient and easy to make.

The invention discloses a method for making a mandibular half-denture with a silicone rubber pressure impression. Firstly, individual trays that cross the edge line are made, and then a hand-adjustable silicone rubber weight is placed in the mouth. , to get the first impression, and then inject the gun-mixed silicone rubber heavy body or middle body into the first impression and the mouth respectively, put the first impression in the inlet, press it in place, take out the impression after curing, and then get the mandibular dentures. In the present invention, a hand-adjustable silicone rubber weight is combined with a gun-mixed silicone rubber weight or middle body with slightly poor fluidity to push away the mucous membrane, stretch it excessively, and perform a pressure function impression to make a horizontal impression of bone tissue to obtain internal and external Oblique lines and other mandibular surface contours, thus solving the problem of dentures made of traditional alginate impressions that are prone to tenderness and even alveolar crest migration pain, and it can be used for the preparation of dentures for patients with severe and extremely severe bone resorption .

The invention discloses a method and system for digital transfer of a removable partial denture with a joint in place track. An optical scanning measuring instrument is used to obtain the final model of the patient's RPD and the final model with a common in place track, and rebuild it into a digital model. The two digital models are overlapped, and the bases of the two final models are cut according to the determined common positioning path through CAD software, so that the axial direction of the final model is consistent with the determined common positioning path. The method of the present invention is the basic step of subsequent digital production of RPD, and accurately transfers the common positioning path determined by the doctor to the technician through digitalization, and provides a method for digitally transferring the common positioning path for the standard RPD digital production, getting rid of the traditional method. The cumbersome process of the transfer and common placement method improves the quality and stability of the restoration; at the same time, it improves the clinical efficiency of the restoration of edentulous patients, significantly shortens the patient's chairside operation time, and reduces the number of follow-up visits due to discomfort .

The present invention relates to a tooth-supported guide plate, a mucosa-supported guide plate, a bone-supported guide plate and methods for preparing and using the same; wherein the preparation method of the tooth-supported guide plate includes: Bonding on the gingival mucosa or / and bonding radio-opaque materials to other anatomical features; b) CBCT shooting to obtain CBCT data with radio-opaque material information; c) acquisition of oral surface with radio-opaque material information STL data; d) match CBCT data with STL data; e) determine the position of the implant and retainer; f) generate the base guide; g) generate the in-situ guide; h) generate the implant guide; i) generate the restoration guide. The tooth-supported guide plate, the mucosa-supported guide plate, the bone-supported guide plate and the preparation and use methods thereof provided by the present invention can improve data matching accuracy and success rate, improve patient comfort, reduce the number of follow-up visits, and reduce clinical medical costs.

The invention provides a method for dental restoration including direct modification of an abutment in the oral environment to obtain the ideal shape, contour, and margin placement. The method is featured with directly measuring the shortest distance X1 between a location L1 on the surface of the abutment and the surface of a surrounding object, and increasing the shortest distance X1 until it is not less than a predetermined value. The invention exhibits numerous merits such as simplified procedure, cost-effectiveness, reduction of laboratory adjustment, reduction of chair time, and reduction of office visits.

A miniature built-in automatic continuous sutural distraction osteogenesis device comprises a main anchorage rod and a distracter; the main anchorage rod is a slender titanium alloy rod, the front part of which is provided with a distracter hole and the tail of which is provided with at least two fixing holes; the distracter is made of an iron-nickel memory alloy wire, the preset shape is a W, the restored shape is a U, both ends are bent, and one of the ends is mounted in the distracter hole; and an auxiliary anchorage rod is arranged on one side of the main anchorage rod, so that a triangular support is formed. The device is individually designed by the three-dimensional CT computer-assisted design technology, can be fabricated in a simple way, and accords with the low-carbon economy, the operation of the surgery is convenient, the distraction process is smooth, and the distraction effect is accurate; the distraction process is simple and convenient, the surgery is minimally invasive and simple, the length of stay is short, the frequency of further consultation is less, the expense is less, and the device is highly compatible with the tissues of the human body, can be safely andreliably fixed, cannot fall apart due to external force, cannot affect the normal study, life, outing and the like of a diseased child, can be worn for a long time, and has a remarkable treatment effect.

The invention relates to a surgical guide plate and a preparation method thereof, which is characterized in that it comprises the following steps: a) adhering a radio-blocking material on the oral mucosa and wearing it into the occlusal embankment; b) performing CBCT shooting to acquire radio-blocking material CBCT data of material information; c) Obtain oral surface STL data; d) Match CBCT data with STL data; e) Load occlusal embankment data; f) Intelligent teeth arrangement; g) Design implants and generate surgical guides. The surgical guide plate and its preparation method involved in the present invention can greatly improve the comfort of patients, reduce the preparation process, do not need to make radiation guide plates, reduce the number of follow-up visits, reduce clinical medical costs, improve the accuracy of the surgical guide plate, and reduce software. Design time to greatly improve the experience of seeing a doctor.