8 results about "Temporary crown" patented technology

The invention provides a low-viscosity resin composition with biocompatibility as well as a preparation method and application thereof, and relates to the technical field of temporary dental crown resin materials. The low-viscosity resin composition with biocompatibility is prepared from the following components in parts by weight: 10 to 40 parts of acrylate resin, 30 to 60 parts of reactive diluent, 10 to 50 parts of modified filler, 0.5 to 2.5 parts of photoinitiator and 0.5 to 5 parts of auxiliary agent, the modified filler is a titanate coupling agent modified nanofiller, and the titanate coupling agent modified nanofiller comprises a nanofiller core and a monomolecular titanate coupling agent coating layer coating the surface of the nanofiller core. The resin composition for the temporary dental crown, provided by the invention, is relatively low in viscosity and excellent in flowability, and is beneficial to material printing and forming; meanwhile, it is guaranteed that the prepared material has good biocompatibility and mechanical strength.

An optimized dental implant system comprising: - at least one dental implant; - at least one customized post; - at least one healing cap made of PMMA or PEEK having a locking taper and a flared lower portion, configured to be fully inserted into and interlocked with the post; and - at least one capsule or temporary crown made of PEEK or PMMA, which can be fixed to the post using the cap. The post comprises: - a first subgingival portion having vestibular, mesial, distal, and palatal surfaces, adapted to allow for the maturation of connective tissue attachment and juxitation; and - a second subgingival portion having a height adapted to the patient's occlusal height.

The invention discloses a method and a device for preparing a PMMA (polymethyl methacrylate) temporary crown bridge, belongs to the technical field of biomedical engineering industry, and aims to solve the problems that a conventional PMMA temporary crown bridge lacks bionic gradient in color and transparency and is poor in aesthetic effect. The method comprises the following steps: mixing a methyl methacrylate monomer, PMMA powder, an initiator, a first coloring agent and a second opaque agent to form initial slurry, carrying out gradient power ultrasonic treatment to control a pigment sedimentation rate difference, carrying out vertical standing to enable the pigment to form a continuous gradient, and finally carrying out step-by-step curing to lock the gradient. The prepared PMMA temporary crown bridge has the bionic characteristics that the color is gradually light and the transparency is gradually increased from the neck to the cutting end, the fidelity of a temporary restoration body is greatly improved, the process is controllable and efficient, the performance is stable, and the clinical complex aesthetic restoration requirement is met.

To provide dental materials for production of temporary crowns and bridges.SOLUTION: A radically polymerizable dental material contains, as initiator system for the radical polymerization, a combination of at least three thiourea derivatives, a hydroperoxide and preferably a transition metal compound. The object of the invention is to provide dental materials which have a processing time suitable for dental purposes and high storage stability, pass through a long elastic phase during hardening, and have good mechanical properties after complete hardening. The materials are to be suitable in particular for production of temporary dental restorations such as crowns and bridges.SELECTED DRAWING: None

An optimized dental implant system comprising:-at least one dental implant; -at least one customized foundation pile; -at least one healing cap made of PMMA or PEEK material, which has a locking taper, has a flared lower portion and thus can be inserted and perfectly fitted onto the foundation pile; -at least one crown or temporary crown, which can be fixed to the pile by means of said cap, said cap being made of PEEK or PMMA. The invention relates to a subgingival prosthesis for a patient, said prosthesis consisting of:-a first subgingival portion having a buccal labial surface, a mesial surface, a distal surface and a palate surface adapted to mature connective tissue attachment and conjunctive epithelium attachment, and-a second subgingival portion having a height adapted to the height of chewing of the patient, said subgingival prosthesis comprising:-a first subgingival portion having a buccal labial surface, a mesial surface, a distal surface and a palate surface adapted to mature connective tissue attachment and conjunctive epithelium attachment;

The application discloses a kind of planting interproximal gap micro-adjustment guide plate correction method, comprising the following steps: S1, implanting implant in the side of patient's adjacent teeth gap;S2, select appropriate temporary crown and wear into implant, so that temporary crown is contacted with patient's adjacent teeth;S3, extrude into the gap between temporary crown and patient's adjacent teeth with tooth separating rubber ring;S4, when the gap between temporary crown and patient's adjacent teeth is generated, replace appropriate temporary crown, so that the temporary crown after replacement is contacted with patient's adjacent teeth;S5, extrude into the gap between the temporary crown after replacement and patient's adjacent teeth with tooth separating rubber ring;S6, when the gap between the temporary crown after replacement and patient's adjacent teeth is generated, repeat step S4 and step S5 until patient's adjacent teeth move to original position.The scheme is replaced with appropriate temporary crown and tooth separating rubber ring after implant-bone combination, so as to gradually extrude patient's inclined teeth back to original position, and implantation treatment can be realized without orthodontics, treatment time and cost are saved.

The application relates to the technical field of oral implant restoration, and discloses an integrated implant temporary restoration crown with an angle screw channel and a restoration body, which comprises an integrally formed upper crown section and a lower connecting section, the upper crown section is located above the lower connecting section, the lower connecting section is used for directly matching and connecting with a target implant, an angle screw channel is formed in the crown, the angle screw channel is obliquely extended from the outer surface of the upper crown section to the lower connecting section, and is used for allowing a locking screw to enter and be connected with an internal thread hole of the target implant; the restoration body comprises the target implant, the locking screw and the above-mentioned crown. According to the application, the upper crown section, the lower connecting section and the angle screw channel are integrally formed through 3D printing, the independent base and the intermediate connecting piece are reduced, and the preparation and assembly process of the temporary restoration body is simplified.

The embodiment of the invention discloses a dental crown design method and device and computer equipment. The method comprises the following steps: acquiring a standby tooth jaw model and occlusion relation data of a first user, and generating a temporary crown design model corresponding to standby teeth in the standby tooth jaw model; a reference crown model is obtained, the reference crown model is a dental crown model obtained by scanning a reference dental crown, and the reference dental crown is a dental crown which is obtained by polishing a temporary dental crown and meets a dental crown wearing condition; performing alignment processing on the reference crown model and the prepared tooth jaw model, and determining position relation data between the reference crown model and the prepared tooth jaw model; and determining dental crown design data according to the prepared tooth jaw model, the reference crown model, the position relation data and the occlusion relation data, wherein the dental crown design data is designed dental crown data or is provided for a second user to carry out formal dental crown design on the prepared tooth. According to the scheme, the adaptation degree of the formal dental crown and the patient can be improved.