22 results about "Denture Repair" patented technology

Provided are a lithium disilicate glass-ceramic green body, a preparation method therefor, and a use thereof. The lithium disilicate glass-ceramic green body comprises a lithium disilicate main crystal phase, crystal size in the lithium disilicate glass-ceramic blank being between 50 and 400 nm, and the proportion of the area of crystal grains having a length greater than 350 nm to the total area being less than 30%. The present disclosure, by means of controlling the internal crystal size of the lithium disilicate glass-ceramic green body to be below 400 nm, enables same to be directly machined without damaging the machining equipment, and combines the advantages of high strength, machinability and direct coloration. This can reduce the waiting time for patients to receive dental restorations, solve the problem of patients being unable to know the color of all-ceramic dentures before fabrication, and overcome a bottleneck for all-ceramic denture restoration materials for same-day delivery. It has great significance for achieving preoperative color matching and rapid restoration in clinical practice.

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 belongs to the field of medical materials, specifically relating to a patterned bio-barrier membrane with self-adhesive function and its preparation method. The preparation method includes: dissolving the adhesive matrix in a buffer solution, then adding reactive amino acids and a stabilizer to obtain a first mixture; adding ethanol and a hydrophobic agent to the first mixture, and stirring under heating conditions to obtain a second mixture; adding a thickener, a calcium supplement, and a reinforcing agent to the second mixture, continuing stirring, and then adding a protein precipitation reagent to precipitate the mixture, obtaining a hydrogel; covering a collagen membrane with a patterned porous mold, and adding the hydrogel to allow it to flow into the pores and solidify. This invention achieves precise adhesive loading through patterned design, combining advantages such as simple operation, reliable fixation, good biocompatibility, and high osteogenic efficiency, effectively solving the barrier membrane fixation problem in GBR technology, and is suitable for bone defect treatment in dental implant prosthesis restoration.

The invention provides a preparation process of a bioactive ceramic coating for false tooth repair. The preparation process comprises the following steps: S1, selecting a bioactive ceramic raw material and detecting the purity of the bioactive ceramic raw material; s2, calculating the ratio of the bioactive ceramic raw materials and mixing; s3, pretreatment of a denture base; s4, spraying preparation of a bioactive ceramic coating; s5, curing treatment of the bioactive ceramic coating; s6, detecting the performance of the bioactive ceramic coating and judging the quality of the bioactive ceramic coating. According to the method, through multi-step data linkage and algorithm cooperation (S2 double algorithms and S4 double algorithms), the coating performance is converted from'experience control 'to'accurate calculation', the problems of insufficient coating biocompatibility, large mechanical property fluctuation, poor thickness uniformity and the like in a traditional process are solved, accurate parameter regulation and control are achieved, and the method is suitable for large-scale popularization and application. The preparation quality of different batches and different types of false tooth coatings is kept stable, and the large-scale production requirement is met.

The invention provides a false tooth parallel occlusion position determination method based on oral cavity scanning data registration and a related device, and belongs to the technical field of oral cavity false tooth restoration. The method comprises the following steps: randomly selecting a set of aligned oral scanning models from at least three sets of oral scanning models, and fixing the upper jaw of the randomly selected set of aligned oral scanning models to obtain a fixed upper jaw position; acquiring a parallel or approximately parallel region of the lower jaw of the randomly selected group of aligned oral scanning models, and determining a rotation angle of the lower jaw based on the parallel or approximately parallel region of the upper jaw and the lower jaw of the randomly selected group of aligned oral scanning models; rotating the lower jaw of a set of randomly selected aligned oral scanning models around a rotating shaft at a rotating angle to obtain the position of the rotated lower jaw; and determining a false tooth parallel occlusion position based on the fixed upper jaw position and the rotated lower jaw position. The problem that the efficiency of determining the parallel occlusion position of the false tooth is not high is solved.

The application discloses a kind of digital production methods of activity instant restoration, it is related to denture repair technical field, to solve the technical problem that current activity instant restoration processing and production highly depend on personnel skills, process is complex and low in efficiency and precision is difficult to control, the method integrates intraoral scanning, CAD computer aided design, CAM cutting processing and 3D printing technology, carries exclusive algorithm and corresponding formula such as oral three-dimensional data reconstruction algorithm, base plate adaptive design algorithm, CAM tool path intelligent optimization algorithm, forms the whole process closed loop of "data acquisition-design optimization-fitting verification-precision cutting-finished product detection";The application realizes restoration full digitalization, intelligent preparation, improves processing precision and efficiency, reduces artificial dependence, adapts to different missing tooth scene, and can be widely applied to oral instant repair field.

This invention discloses a jaw position recording device for digital complete dentures, relating to the field of oral clinical medicine. It includes an intraoral jaw position recording main body, a handle, a facial marking plate, an intelligent detection module, and a data processing and transmission module. The intraoral jaw position recording main body also includes a personalized maxillary tray and a mandibular occlusal base. An interface is provided at the center of the tray, and both the handle and the facial marking plate are adapted to the interface. One of the handle or the facial marking plate is detachably connected to the tray. The tray is used to hold impression material to obtain jaw position impressions, the handle is used to cooperate with the tray to perform jaw position recording operations, and the facial marking plate is used to provide reference marks for facial scanning. This invention can simultaneously collect jaw position and facial data, solving the problems of data fragmentation, insufficient personalization, and low communication efficiency in existing technologies. It improves the accuracy, aesthetics, and treatment efficiency of complete denture restorations and is suitable for jaw position recording and design in digital complete denture restorations.

This invention provides a lithium disilicate glass-ceramic preform, its preparation method, and its application. The lithium disilicate glass-ceramic preform comprises a lithium disilicate main crystalline phase, wherein the crystal size of the preform is between 50 and 400 nm, and the area of ​​grains longer than 350 nm accounts for less than 30% of the total area. By controlling the internal crystal size of the lithium disilicate glass-ceramic preform to below 400 nm, this invention allows for direct machining without damaging processing equipment. Furthermore, it combines advantages such as high strength, machinability, and direct color development, reducing patient waiting time for dentures and solving the problem of patients not knowing the color of all-ceramic prostheses before fabrication. This breakthrough overcomes the bottleneck of all-ceramic prosthesis materials that affect patients' ability to wear dentures on the same day, and is of great significance for achieving preoperative color matching and rapid restoration in clinical practice.

The application belongs to the technical field of medical oral cavity repair, and discloses a digital-based oral cavity occlusion reconstruction method, device, equipment and storage medium. The method comprises the following steps: acquiring head CBCT data and oral cavity data of a current patient, and establishing a skull model; marking key information points on the skull model to generate marking information; performing data analysis on the marking information to obtain key occlusal surface information; determining occlusal plane position information according to the key occlusal surface information; establishing an occlusion reconstruction model according to the occlusal plane position information; simulating occlusion movement according to the occlusion reconstruction model to obtain a simulation result; when the simulation result does not conform to a preset abnormal scene, determining that the occlusion reconstruction model is a target occlusion reconstruction model; and performing cutting processing according to the target occlusion reconstruction model to obtain a denture prosthesis of the current patient. In the above manner, the fitting accuracy of the denture prosthesis is improved, the process flow is saved, and the production speed of the denture prosthesis is accelerated.

The invention provides a titanium stent covered false tooth repairing method which comprises the following steps: S1, acquiring digital three-dimensional data and occlusion relation of upper and lower jaw dentitions of a patient through digital oral cavity scanning; s2, performing digital design based on the data in the step (1), and adjusting parameters to obtain a restoration three-dimensional data model; s3, segmenting the three-dimensional data of the prosthesis according to parts to obtain digital data of the titanium metal stent, the sleeve inner crown and the sleeve outer crown; s4, designing a connecting handle; s5, the titanium metal support data are imported into 3D printing titanium additive equipment for manufacturing; s6, CAD / CAM mechanical cutting is adopted to manufacture an inner crown, an outer crown and a connecting handle of the sleeve; s7, the sleeve outer crown, the connecting handle and the titanium metal support are welded into a whole through a laser welding machine, and a denture covering titanium support is formed; and S8, trying on and adhering a titanium metal inner crown in the oral cavity of the patient. By means of the method, efficient and stable connection of the titanium support and the telescopic crown is achieved, and the accuracy and long-term retention force of a false tooth in-position path are improved.

The invention relates to a method for producing prosthetic restorations, together with the software and hardware modifications required for carrying out the method. By means of the method, the clinical surface of the required restoration is produced and finalised before the treatment session in a commercial laboratory, a practice laboratory, or laboratory-type facilities within a dental practice, while the side facing the cavity (the preparation interface) is adapted to the actual intraoral situation of the patient in the dental practice during the treatment session. The restoration partially finished in the dental laboratory is thus delivered to the dental practice as a semi-finished product and is completed there during the treatment session, so that the patient can be provided directly with the final restoration in one session, without a provisional restoration and within a short period of time.

The application relates to the technical field of dentistry, in particular to a fusion cutting method, device and equipment of a denture prosthesis and a storage medium. The method comprises the following steps: acquiring at least two prosthesis models; pre-processing the prosthesis models, and retaining initial outer layer models of the prosthesis; determining a penetration region and a non-penetration region between the initial outer layer models, and pre-processing the penetration region to obtain a cutting surface set between the initial outer layer models; merging the cutting surface set and the non-penetration region to obtain a target outer layer after cutting; performing fairing processing on the target outer layer, and combining the target outer layer after the fairing processing and an inner layer model to obtain a prosthesis model after cutting. Compared with the prior art, a flat surface as a reference surface is constructed in the penetration region space of two models, so that the vertexes of the penetration regions of the two models are displaced to the reference surface, and accurate cutting of the denture model is realized.

The invention relates to the technical field of dental medicine, in particular to a chair-side false tooth repairing method, device and equipment and a storage medium. The method comprises the following steps: acquiring an intraoral three-dimensional model of a patient; performing false tooth design according to the intraoral three-dimensional model, determining a false tooth model, and performing typesetting planning on the false tooth model, the typesetting planning comprising: determining a target tray from a historical tray database according to a specified material type, color number and required height of the false tooth model, determining the initial position and posture of the false tooth model in the target tray by calculating the cutting space of the false tooth model; converting a typesetting planning result into a numerical control instruction and sending the numerical control instruction to a target processing machine so as to drive the target processing machine to carry out dry cutting to obtain a formed false tooth; and sintering and post-processing the formed false tooth to obtain the false tooth restoration of the patient. According to the method, the problems of low efficiency and material waste caused by dependence on manual material selection and typesetting in traditional chair side repair are effectively solved, the repair efficiency is improved, and the material utilization rate is optimized.

The invention provides a nest type three-dimensional all-point jaw frame device which is used for transferring the intra-oral jaw biting relation of a patient in complete denture repair and effectively simulating the movement track of a tooth tip staggered position interval of the patient. According to the device, three sectional guide compasses are additionally arranged on an upper jaw body base, and when a lower jaw body base is fixedly connected with a lower jaw branch assembly, two lower jaw branches and a cutting guide rod can be inserted into a corresponding condylar guide nest and a corresponding cutting guide nest to do reciprocating motion along a synchronous groove, and the indexing of the compasses is adjusted; and the operation state of all-directional sliding of the lower jaw dentition on the maxillary surface of the maxillary dentition in-position track can be effectively reflected, so that the movement track of the complete denture in a tooth tip staggered position interval is effectively simulated, and accurate and rapid jaw adjustment is realized. The device can also realize mutual switching between a tooth arrangement mode and a jaw adjustment mode by locking and switching the upper jaw body base and the lower jaw body assembly, and has good functionality and practicability.

The invention relates to a full-automatic glazing device for false teeth and a glazing method using the full-automatic glazing device for the false teeth, the full-automatic glazing device for the false teeth comprises a glaze storage module, a metering module, a mixing module, a spraying module and a monitoring module, in the glazing process, according to feature information of a sprayed glaze layer, real-time adjustment of the proportion of glaze raw materials and spraying parameters is achieved, and the spraying quality is improved. The glazing method using the full-automatic false tooth glazing device avoids the problems of poor glaze layer uniformity, glaze waste, low glazing efficiency and the like caused by manual brushing; compared with manual brush coating, the glaze layer uniformity of the obtained glazed false tooth is improved by 82%, the glaze utilization rate is improved by 157%, the light transmission consistency after sintering is improved by 76%, and the requirements of a patient for the aesthetic property and durability of false tooth repair are met.

The utility model discloses an implant single-sleeve crown repairing device, and belongs to the technical field of implant denture repairing. The device comprises a composite abutment and a sleeve outer crown, the composite abutment comprises a boss inner crown composed of an upper circular truncated cone section and a lower retention section which are connected up and down, and the sleeve outer crown is sleeved on the boss inner crown and is in retention connection with the boss inner crown through Morse taper. The device is mainly composed of the sleeve outer crown and the boss inner crown, the number of accessories is small, the structure is simple, the technical sensitivity to doctors is reduced, a common insertion path can be easily obtained, time and labor are saved during operation, and therefore the clinical process is accelerated, time is saved, accuracy is improved, and missing teeth of a patient can be simply and rapidly repaired. The sleeve outer crown and the boss inner crown are fixedly connected through the Morse taper, the retention effect is good, the retention force is sufficient, and the sleeve can be taken down by a patient only with force when the sleeve needs to be taken down, so that oral hygiene and cleaning of the patient are facilitated, periodontal health is protected, and the long-term success effect is achieved.

The invention belongs to the field of medical materials, and particularly relates to a patterned biological barrier film with a self-adhesion function and a preparation method thereof. The preparation method comprises the following steps: dissolving an adhesive main body in a buffer solution, and then adding reactive amino acid and a stabilizer to obtain a first mixed solution; adding ethanol and a water repellent agent into the first mixed solution, and stirring under a heating condition to obtain a second mixed solution; adding a thickening agent, a calcium source supplement and a reinforcing agent into the second mixed solution, continuously stirring, and adding a protein precipitation reagent for precipitation to obtain hydrogel; and covering the patterned porous mold with a collagen membrane, adding the hydrogel to enable the hydrogel to flow into the pores for curing, and completing the process. Accurate adhesive loading is achieved through patterning design, the device has the advantages of being easy and convenient to operate, reliable in fixation, good in biocompatibility and high in osteogenesis efficiency, the barrier film fixing problem in the GBR technology is effectively solved, and the device is suitable for bone defect treatment in oral implant denture repair.

The utility model relates to the technical field of false tooth repairing tools, and discloses an anti-accidental-injury oral false tooth repairing tool which comprises a tool body, a protection mechanism is arranged on the outer side of the tool body in a sliding mode, a lamp holder is fixedly arranged on the upper end face of the tool body, an illuminating lamp is fixedly arranged on the upper end face of the lamp holder, and two tool aprons are fixedly arranged on the upper end face of the tool body. Two first screw holes are formed in one side of each tool apron, a blade mechanism is arranged between the two tool aprons in a clamped mode, and two fixing bolts are fixed between the two tool aprons in a threaded mode. The protection mechanism is arranged on the outer side of the knife body of the oral denture repair knife, the knife head can be hidden by sliding the protection mechanism to prevent the knife head from accidentally injuring the oral cavity, meanwhile, the lighting mechanism is arranged at the top of the knife body to provide lighting, a doctor can conveniently observe and operate, and the blade mechanism is fixed at the top end of the knife body through the fixing bolt. The damaged tool bit is convenient to replace, and waste of resources is reduced.

The application discloses a kind of full mouth denture intelligent design methods based on multi-task cooperative deep learning, applied to oral prosthetic technical field.It includes the following steps: through edentulous jaw buffer area mask self-encoding network to generate tissue face after buffer edentulous jaw model;Adopting in situ channel direction undercut filling algorithm generates after undercut filling model;Based on multi-rigid body pose prediction network generates full mouth denture tooth arrangement position;Using deep learning model to separate out the base plate boundary from edentulous jaw model;With the constraint condition of base plate boundary and full mouth denture tooth arrangement position, combined with the curvature of generated surface to construct composite loss function, using conditional adversarial generative network generates base plate model.The present application automatically core tooth arrangement step, reduces the error caused by human factor, significantly improves the consistency and reliability of denture design quality, enhances the wearing comfort and long-term stability of final denture, helps the popularization and application of high-quality full mouth denture prosthetic technology in primary medical institutions.