44 results about "Fixed prosthodontic" patented technology

The invention relates to a polishing device for false tooth machining. The polishing device comprises a base, an installation seat which is placed on the base and is used for fixing a false tooth in the polishing process, a support fixed to the base and a grinding tool which is installed at the end, away from the base, of the support and is used for grinding the false tooth. The polishing device is characterized in that a magnetic worktable is arranged on the upper end face of the base; multiple concentric ring-shaped grooves are formed in the lower end face of the installation seat; magnets are arranged in the ring-shaped grooves; and a clamping mechanism used for clamping and fixing the false tooth is arranged on the installation seat. The polishing device has the effects that the relative position between the installation seat and the base is conveniently adjusted, and therefore the grinding process is more convenient.

A skin contacting plate is formed in the shape of the gums to which the plate is secured by a skin adhering compound on a perforated layer. A protruding ridge along the teeth line has an internal reservoir to receive a skin adhering compound solvent from a syringe-type liquid pump to dissolve the compound to remove the skin contacting plate when desired. A denture plate conforms to the shape of the skin contacting plate and the protruding ridge. A syringe-type vacuum air pump draws the air from between an internal passageway between the plates through a valve in the denture plate to form a vacuum to maintain the plates together. Pumping air into the internal passageway immediately releases the plates.

The invention discloses an implant device for implanting a fixed false tooth, and belongs to the technical field of fixed false teeth; the implant device comprises an implant main body, a clamping groove is formed in the lower part of the interior of the implant main body, a plurality of limiting grooves are formed in two sides of the interior of the implant main body, and a connecting rod penetrates through the interior of the implant main body; and a clamping block is fixed to the bottom of the connecting rod, and a plurality of limiting blocks penetrate through the two sides of the connecting rod. The implant device is provided with threaded grooves, threaded seats, limiting rods, sliding rails and sliding blocks, when the fixing false tooth needs to be disassembled and replaced, a connecting block can be rotated firstly, the threaded grooves are moved out of the threaded seats, then the limiting rods are pulled out, after the limiting rods are pulled out, the plurality of limiting blocks are not extruded any more, and then the connecting rod can be pulled out by pulling the threaded seats; in the process, the plurality of limiting blocks can retract into the connecting rod along the arc-shaped side edges under pulling force, so that disassembly is completed, operation is easy and convenient, and the situation that a false tooth is not easy, convenient and safe enough when needing to be replaced and disassembled is avoided.

The invention discloses a fixing false tooth false gingiva attachment body and a manufacturing method thereof. The fixing false tooth false gingiva attachment body includes a periodontal obstructing device, fixing false teeth, an attachment body and attachment body connecting mechanisms; the periodontal obstructing device combines with the attachment body connecting mechanisms; the fixing false teeth combines with the attachment body connecting mechanisms; and the periodontal obstructing device combining with the attachment body connecting mechanisms is connected to the fixing false teeth combining with the attachment body connecting mechanisms through the attachment body; The manufacturing method includes preparing crown and bridge prosthesis having the attachment body connecting mechanisms, molding in an oral cavity to form an alveolar bone defect zone model, finishing the model, demolding, placing the negative pole and positive pole of the attachment body, performing mold reversing,performing injection molding, performing polishing, etc. The problems that the periodontal obstructing device (false gingiva) and the fixing false teeth cannot be worn in the same time can be solved;the fixing false tooth false gingiva attachment body has advantages which the periodontal obstructing device and the fixing false tooth restoration have; operation wound brought by traditional oral and maxillofacial surgery bone grafting can be reduced; and the fixing false tooth false gingiva attachment body is accurate in molding, economical in price and comfortable and convenient to wear.

The invention discloses a fixed denture preparation device based on a mechanical process, and relates to the technical field of mechanical processes. The fixed denture preparation device based on the mechanical process comprises a bottom rack and a guide rail, a trough plate chamber is arranged in the bottom rack, the end part of the trough plate chamber is connected with a connecting pipe, the end part of the connecting pipe is connected with a filter tank chamber, a connecting frame is arranged in the filter tank chamber, a connecting filter screen is arranged in the connecting frame, a connecting pin penetrates through the end part of the connecting frame, one side of the connecting frame is connected with an adjusting hydraulic oil cylinder, a water pump is installed on one side of the filter tank chamber, and one side of the water pump is connected with a liquid supply pipe. The fixed denture preparation device based on the mechanical process is provided with a denture storage mechanism, a miniature hydraulic oil cylinder can effectively push a pressing plate to rotate along the outside of a lock pin, the rotating angle of the pressing plate can be effectively changed, the pressing plate can be adjusted to a proper angle until the pressing plate tightly presses a processed denture, and therefore the processed denture can be effectively limited.

A method for digital archiving and manufacturing of dental prosthetics and a prosthesis, and teaching and training for same are provided. The method mainly includes the following steps: preoperative scanning: creating a first digital model file; optical positioning and turning treatment: creating a second digital model file from a turning process; physical model calculation: creating reversely an autologous crown model file of a patient; and fixed denture manufacturing: manufacturing, according to the second digital model file and the autologous crown model file, a fixed denture that meets needs of the patient, so that an inner layer structure of a crown of the fixed denture can be tightly bound to an abutment, and it may be decided to retain an original crown contour according to needs. A tooth model based on a teaching digital model file can be used for teaching and training of a trainee with the foregoing method.

The invention discloses a use method of a dental suppository channel type attachment. The use method comprises the following steps: determining position information of the suppository channel type attachment according to alveolar cavity information; acquiring shape information of a suppository channel, and performing conventional preparation on an abutment tooth in front of a tooth lacking gap; acquiring inclination information of an abutment tooth behind the tooth lacking gap, and performing conventional preparation on the abutment tooth behind the tooth lacking gap; preparing a tooth impression according to the alveolar cavity information, preparing a rear half part fixed false tooth according to the tooth impression, and placing a suppository body at a position close to the center of the alveolar cavity; manufacturing a front half part fixed false tooth according to the tooth impression; mounting the rear half part fixed false tooth in an alveolar cavity of a patient, and fixedly mounting the front half part fixed false tooth at one end, far away from the alveolar cavity, of the rear half part fixed false tooth by using an adhesive. The suppository body and abutment teeth on oneside are used for obtaining a common positioning channel, and teeth are ground as little as possible on the other side, so that the purpose of storing tooth tissue as possible is achieved.

The invention discloses an auxiliary tool for fixing and repairing teeth and a use method, the auxiliary tool comprises a dental handpiece and a guide plate, the dental handpiece comprises a handle and a machine needle arranged on the handle, one end of the handle is provided with a handpiece, the handpiece is provided with a plurality of positioning points, and the machine needle is located among the plurality of positioning points; the guide plate comprises a plate body, a notch formed in the plate body and a plurality of guide rails located on the periphery of the notch. According to the auxiliary tool for fixing and repairing the teeth and the use method, through an accurate guide rail control mode, a common positioning path is closer to be parallel, the friction force between the false tooth and the abutment is increased, the condition that the fixed false tooth is easy to fall off is effectively avoided, and for preparation of the abutment, a shoulder can be clearer, uniform in thickness and consistent in height; meanwhile, through the cooperation of the guide plate and the dental implanter, the dental implant operation can be completed, and the dental implant is better in applicability.

The invention relates to oral medical materials, in particular to a cobalt-chromium ceramic-metal alloy disc for engraving fixed dentures. The cobalt-chromium ceramic-metal alloy disc is prepared fromthe following raw materials in percentage by weight: 50%-65% of cobalt, 20%-35% of chromium, 3%-6% of molybdenum, 1%-3% of titanium, 5%-7% of tungsten, 0.08%-0.3% of lanthanum, 0.1%-0.5% of cerium, 0.09%-0.3% of yttrium and 0.06%-0.2% of strontium. The preparation method comprises the following steps that 1, after the tungsten is firstly melt in a high-frequency high-temperature furnace, the cobalt, the chromium and the molybdenum are added in sequence; 2, the metals are introduced into a vacuum smelting furnace after melting, and then the cerium, the lanthanum, the titanium, the yttrium andthe strontium are added for vacuum melting; 3, a smelted and molten metal solution is introduced into a rectangular parallelepiped mold, and is cooled after being formed in a vacuum; and 4, for a cooled alloy metal ingot, residues in an alloy are cut off and separated from the alloy by a material reducing method, the remaining materials are machined by wire cutting and lathe turning, and the cobalt-chromium ceramic-metal alloy disc with the diameter being 98mm and the thickness being 10mm-25mm is machined. Compared with existing products, the cobalt-chromium ceramic-metal alloy disc is high inengraving machining yield and stable in quality, and is suitable for promotion and use.

The invention provides a method of detecting mucosal deformation of alveolar ridge mucosa under action of a pontic. A displacement sensor detects and simulates contact tightness degree of the fixed denture pontic and the alveolar ridge mucosa, displacement is accurately measured, thickness of removal is determined, and medical staff is guided to perform correct medical operations. According to the contact tightness degree of the fixed denture pontic and the alveolar ridge mucosa, the displacement is accurately measured, and the thickness of removal is determined; the thickness of removal in scraping removal is detectable; the method is available for simulating the thickness of required removal and checking the thickness of removal.

The present invention provides a technology for repairing dentures by using a 3D printing titanium-based composite material. The technology combines 3D printing with an existing digital technology anda new titanium alloy formula is used to solve problems that existing fixed denture restorations are high in porcelain-falling rate and poor in binding with human body tooth tissues.

An intraoral insertion path visualizer is applied in the field of oral fixed prosthesis, especially in fixed prosthodontics requiring that abutments share the same insertion path. The intraoral insertion path visualizer mainly comprises two parallel visualizing rulers, a crossbeam and a handle. One of the visualizing rulers is disposed at an end of the crossbeam and is rotatable, and the other visualizing ruler is disposed at the other end of the crossbeam and can slides in a sliding groove in the crossbeam. The handle is flat so that the handle is convenient to grasp. The intraoral insertion path visualizer is characterized in that: during a visualizing process, the sharp end of one of the visualizing rulers is disposed at the shoulder of an abutment and the sharp end of the other visualizing ruler is disposed at the shoulder of another abutment, and therefore the same insertion path of the abutments can be visualized. One of the visualizing rulers is fixed relatively and the other visualizing ruler can be adjusted by allowing the visualizing ruler to slide along the crossbeam according to the different distances between the two abutments. The two visualizing rulers are both rotatable so as to suit each axial surface of the abutments.

The invention relates to the technical field of oral cavity rehabilitation, and discloses an integrated implant rod, a fixed false tooth and a molding method. The integrated implant rod comprises a body extending along positions of a plurality of missing teeth on a gum, wherein a plurality of fixing interfaces used for matching implants are arranged on the body; and the position of each fixing interface corresponds to the planting position of each implant on the gum. Compared with the prior art, the integrated implant rod, the fixed false tooth and the molding method provided by the inventionhave the following advantages: the integrated implant rod is designed on the basis of the oral cavity of a patient, matches implants, and covers a plurality of missing teeth at a time; during occlusion of the patient, an occlusal force is dispersed to the whole integrated implant rod and integrally borne by the body; thus, the problems of damage, breakage and the like due to uneven stress can be avoided; and a dental implant structure is optimized.

The invention provides a method for preparing a cobalt-chromium alloy fixed false tooth and a cobalt-chromium alloy movable false tooth through vacuum hot pressing sintering, and belongs to the technical field of false tooth preparation. According to the method, cobalt-chromium alloy micro powder is subjected to vacuum hot-pressing sintering forming, a cobalt-chromium alloy fixed false tooth is obtained, and the cobalt-chromium alloy movable false tooth is obtained by conducting normal-pressure sintering on an obtained vacuum hot-pressing sintering forming product. The method adopts a vacuum hot pressing sintering molding mode, has the advantages of simple preparation method, low cost and high production efficiency, and can realize batch production of the cobalt-chromium alloy false tooth. In the vacuum hot pressing sintering forming process, a cobalt-chromium alloy powder sintering neck grows up, holes are closed, a continuous base body is formed, under the grain boundary diffusion mechanism, the holes are shrunk and closed, and the compactness, strength and ductility of the material all meet the use requirements of fixed dentures. And through normal-pressure sintering, the compactness is further improved, the plasticity and toughness of the material are enhanced, the ductility is increased, and the use requirements of removable dentures are met.

The invention relates to dental field, more specifically in the field of periodontics, and describes the construction and working of a modular gum architecture device made of inert, biocompatible, bone-integrable and / or absorbable material to replace in part or totally the lost alveolar bone and restore the anatomy of the gum around the tooth or implant. The device may recreate the region of the interdental papilla or may fill in empty spaces caused by protocol-type prostheses (fixed dentures). It can also serve as support for teeth already softened or softening, for implants already installed or even for implants to be installed.

The invention discloses a customized fixed false tooth porcelain baking process which comprises the following steps: step 1, metal turning and polishing; step 2, magnetic cleaning; step 3, spraying porcelain; step 4, high-temperature porcelain baking; step 5, porcelain turning and polishing; step 6, spraying and glazing; step 7, freezing and polishing; According to the invention, a sand blasting polisher is used for replacing a traditional manual polishing instrument, so that surface defects such as burrs and flashes on the metal false tooth blank are thoroughly removed, the problem of porcelain layer fracture of the false tooth in the use process is avoided, the working reliability of the false tooth is improved, the processing time of the false tooth is shortened, the production efficiency of the false tooth is improved, a cleaning solution formed by mixing distilled water, acetone, ethylene glycol and citric acid is matched with a magnetic stirrer to clean the metal false tooth blank, so that impurities such as scrap iron and oil stains on the metal false tooth blank in the processing process are thoroughly removed, the bonding strength of the porcelain powder is improved, and the porcelain baking effect of false teeth is ensured.

The invention discloses a processing technology of a fixed denture. The processing technology comprises the following steps of: S1, manufacturing a gypsum dental model; S2, manufacturing a denture mold; S3, making a green body; S4, conducting pre-sintering; S5, performing shape processing; S6, conducting high-temperature sintering; S7, performing fine processing; S8, inspecting a finished product; and S9, conducting disinfecting and packaging. According to the method, the working efficiency is remarkably improved on the basis of ensuring the precision, and the finally obtained fixed denture is high in structural strength and relatively long in service life.

The invention relates to a tool for filling root canals of teeth in order to prevent bacteria passing thereinto following removal of the nerve from the tooth and preparation of the canal for root filling. Owing to the importance of this remedial action, several methods and tools have been developed to facilitate root canal obturation by injection of a leak-proof material. The present invention discloses a plug made from plastic or any other biocompatible material, comprising: a central, conical, cylindrical, longitudinal cavity; lateral elliptical openings connected to said longitudinal cavity; discontinuous lateral guiding supports having rounded angles and spaces therebetween; and a double leak-proof cap. The plug does not require a gripping part, which facilitates the placement of a post inside the root in order to support fixed prosthodontics and to prevent leakage of the obturating material injected into the tooth.