57 results about "Dentistry prosthetic" patented technology

One embodiment of the present disclosure is directed to a method used in the making of a dental restoration, which comprises the steps of determining a tooth flat at a patient's tooth, and evaluating the tooth flat to provide a geometric characteristic data of the first tooth flat. The characteristic data are used to provide a computer model of a jaw motion under occlusal contact between teeth in the patient's upper and lower jaws. In one embodiment, the method helps facilitating the preparation of dental restorations.

An implant abutment for attaching a dental prosthesis within a patient's mouth is disclosed. The abutment includes a core and a cuff surrounding the core, and the color of the cuff is matched to the color of the prosthesis. Dental restoration systems and methods for fabricating a dental implant restoration utilizing the abutment are also disclosed.

A combination dental implant / prosthetic support and distractor for facilitating distraction osteogenesis comprises a basically cylindrical shaft having a set of threads on the outside surface and a smooth, distal tip which bears against the bone of the jaw of the patient. Rotation of the device in the mouth of the patient, after a suitable surgical cut is made, causes the adjacent tissue to move or ride up the screw threads to create space between the cut jaw segment and the balance of the jaw tissue. This space is then filled in by distraction osteogenesis. The implant / distractor is left in-situ, after the distraction is finished, for securement thereto of a dental prosthetic, either a bridge or crown. In an embodiment of the invention, a flat disc is placed in the blind bore drilled into the jaw such that the distal tip of the shaft of the combined implant / distractor, will bear against it. A protective cap and / or collar can be provided, suitable shaped, to protect the shaft / gum line from bacterial attack. Also, the shaft may be provided with an internal passageway and one or more radially extending branches. Growth-enhancing material can be passed through the passageway and branches to promote bone development and recovery. In another embodiment, a coronal member is provided, extra-osseously, to facilitate the distraction osteogenesis process. In one version of the device, fluting is provided to the exterior surface of the shaft so that bone growth is enhanced at that intersection. Also, the shaft can be provided with a flat disc at its head to reduce rocking of the device in the mouth.

A dental prosthesis includes an implanting end, a coupling end, and a screw portion between the implanting end and the coupling end. The dental prosthesis further includes a positioning marker portion located adjacent to the coupling end of the dental prosthesis. The dental prosthesis can be precisely located in an alveolar bone of a patient. A dental implant includes the dental prosthesis and an abutment. The abutment includes a prosthesis coupling end. The prosthesis coupling end of the abutment is coupled to the coupling end of the dental prosthesis.

A method of making a dental restoration has the steps of: determining a virtual space available for accommodation of a dental restoration for a tooth to be restored; retrieving a predefined virtual master dental restoration surface from a database; fitting the virtual master dental restoration surface in the space to provide a virtual outer dental restoration surface; creating a virtual inner dental restoration surface independent of a shape of the tooth to be restored; providing a virtual model of a dental restoration based on a combination of the virtual outer dental restoration surface and the virtual inner dental restoration surface; and fabricating the dental restoration based on the dental restoration model.

A device for to aid or help patients remove dental prostheses. The dental prosthesis removal tool preferably includes a small hook, which has a rubber cover. The hook is preferably attached to a bar and a handle, which could easily fit into a patient's hand. The tool is preferably made of a strong, rust free metal, e.g. stainless steel. The handle is preferably made of a hard, processed plastic, and is strongly secured to the bar. A kit of the components is also envisioned.

The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.

A dental prosthesis, includes a metal framework having at least one cap, which can be joined to an abutment of a dental implant. The metal framework includes a connecting element which can be, or is, joined to the cap in the oral cavity of a patient, in particular by way of welding, soldering or gluing, wherein the cap has a tip and, on the inside, a cavity into which the abutment can be inserted through an opening located opposite the tip. It is the object to refine the dental prosthesis and / or the metal framework so as to allow improved handling and / or facilitated creation of the, in particular intra-oral, preferably welded, joint with low design complexity. This object is attained by providing a pin arranged as an axial extension in the region of the tip of the cap and the connecting element is joined to the pin.

A dental prosthesis securing system secures a dental prosthesis to a dental implant. An abutment for cement has a base surface for placement against the dental implant. The base surface does not define an engagement shape that requires alignment with a complementary shape defined by the implant. A securing mechanism secures the abutment for cement to the dental implant.

The invention provides a method and a system for testing suitability deviation of a dental restoration CAD and a manufacturing process, and the method for testing the suitability deviation of the dental restoration CAD and the manufacturing process comprises the following steps: S1, simulating dental preparation data of different forms clinically constructed in an oral cavity; S2, importing the tooth preparation data in different forms into a CAD system, and designing in the CAD system to obtain prosthesis design data; S3, obtaining a final prosthesis through 3D printing wax pattern post-casting, CNC milling or an SLM technology according to the prosthesis design data; S4, scanning the final restoration tissue surface by using a 3D scanner to obtain restoration tissue surface data; and S5,importing the prosthesis tissue surface data, the tooth preparation body data and the prosthesis design data into Geomagic Studio software for fitting registration, and calculating to obtain the suitability deviation of the dental prosthesis. According to the method and the system for testing the suitability deviation of the dental restoration CAD and the manufacturing process, the problem that the suitability deviation of the dental restoration CAD and the manufacturing process cannot be tested in the prior art is solved.

A method for manufacturing a dental restoration for a patient, where the method includes: obtaining a 3D scan of at least a restoration site of the patient's mouth, where the manufactured dental restoration is adapted for fitting to the restoration site; obtaining a CAD design of the dental restoration; milling the restoration from a material, where the restoration is milled both on an inside surface configured for fitting to the shape of the restoration site of the patient's mouth and on an outside surface, where the milling is according to the obtained CAD design; transferring the milled restoration to a retention means providing a fixed known position of the restoration relative to a post-processing machinery, where the restoration is retained on the inside surface, such that the outside surface of the restoration is approachable / free / accessible; and performing post-processing of the outside surface of the restoration.

The invention provides a tooth adhesive system based on a new hydrophobic adhesion concept. The tooth adhesive system comprises a single-component adhesive and a bi-component adhesive, wherein the necessary components of the single-component adhesive and the bi-component adhesive are a hydrophobization reagent, solvents, hydrophobic polymeric monomers and photopolymerization initiators. The system is characterized in that hydrophobic modification is firstly carried out on tooth surfaces in the adhering process, so that the tooth surfaces are converted from hydrophilic surfaces to hydrophobic surfaces. The system has the beneficial effects that the polymeric monomers in the adhesives can fully infiltrate demineralized dentin matrices, so that adhesive monomers fully infiltrate the demineralized dentin matrices, and a uniform and stable mixed layer is finally formed after in-situ polymerization, thus obviously improving the immediate adhesion strength, improving the long-term adhesion strength of dentin by several times, obviously reducing the nano leakage rate of the mixed layer and radically improving the durability of adhesion and restoration; the system has the effect of obviously improving the immediate and long-term adhesion strength of dentin and enamel and the durability of tooth prosthesis adhesion and has obvious dentin immediate sealing effects and good dentin desensitizing effects.

The present invention proposes a method and system for testing the suitability deviation between the CAD of the dental restoration and the manufacturing process, wherein the method for testing the suitability deviation between the CAD of the dental restoration and the manufacturing process includes the following steps: S1, simulating different forms of oral cavity clinical construction Tooth preparation data; S2. Import the tooth preparation data of different shapes into the CAD system, and design the restoration design data in the CAD system; S3. According to the restoration design data, after casting, CNC milling or SLM technology to obtain the final restoration; S4, use the 3D scanner to scan the tissue surface of the final restoration to obtain the tissue surface data of the restoration; S5, import the tissue surface data of the restoration, tooth preparation data and restoration design data into Geomagic Studio software Fitting registration is performed, and the suitability deviation of the dental restoration is calculated. The method and system for testing the suitability deviation of the CAD of the dental restoration and the manufacturing process solve the problem in the prior art that the suitability deviation of the CAD of the dental restoration and the manufacturing process cannot be tested.

A system for removing dental prosthetics and restorations effectively and efficiently without damaging the dental prosthetic or restoration and with minimal discomfort to a patient is disclosed. The system features central holder designed for receiving and securely supporting a single or plurality of support arms in a spaced apart arrangement, whereby each support arm is capable of supporting an adjustable and pivoting attachment designed to adhesively engage and remove a dental prosthetic and restoration with the application of force. The system also features a plurality of independent attachments that can be used to adhesively engage and effectively remove a dental prosthetic and restoration with the application of force.