85 results about "Dental Restoration Repair" patented technology

The present invention provides a method for preparing dental restorations, the method comprising the steps of (a) compiling a database of materials for use in preparing a dental restoration; (b) compiling a database of procedures for preparing the dental restoration; (c) determining the geometrical constraints of the dental restoration; (d) determining the aesthetic constraints of the dental restoration; and (e) inputting the geometrical constraints and the aesthetic constraints to a computer to mathematically select from the material database and the procedure database a recipe for producing the dental restoration.

Methods are disclosed for forming a metal substructure that will subsequently be overcoated with ceramic layers to create a dental restoration. The methods involve the steps of providing a metal powder and applying the metal powder to a die and sintering the metal powder to form a solid structure that may be used as a coping. The application of the metal powder is done in a controlled fashion while minimizing the amount of necessary handwork. These application methods include: (a) alternatingly applying an adhesive and a metal powder to the selected portion of the die surface; and (b) forming the metal powder into a viscous slurry or slip and then dipping the die therein or spraying or pouring the slurry or slip onto the selected portion of the die surface.

The disclosed fixture mount limits torque that may be applied when installing a dental implant and also serves as an impression post and an abutment for a temporary prosthesis. In preferred embodiments, the fixture mount is formed of plastic and is subject to chair side modifications by the surgeon so as to be better suited as an abutment. Methods of shaping the fixture mount for use as an abutment and for making a dental restoration using the shaped abutment are disclosed.

A computer-based method and system of virtually planning a dental restoration in a patient are disclosed, including steps, units or code segments for virtually planning a first dental restoration. First production data is based on the planned first dental restoration for production thereof or of a product related to a medical procedure for installing at least a portion of the first dental restoration in an oral cavity of the patient. Scan data is provided including factual position data and/or factual shape data based on the first dental restoration when at least partly installed in the oral cavity of the patient. The second dental restoration is virtually planned, including adjusting the planned first dental restoration in dependence of the scan data. Second production data is provided based on the planned second dental restoration useful for production of the second dental restoration.

The invention relates to a making method for a bionic ceramic dental prosthesis. The method comprises the steps that conventional 3mol% yttrium-stabilized zirconium dioxide ceramic with high strengthand low transparency and ceramic with high transparency are selected as prefabricated powder; a blank block/disc is pressed in a layered mode; in a transition buffer layer from the lower surface of ablank to the upper surface, the proportion of the 3mol% yttrium-stabilized zirconium dioxide ceramic is gradually decreased from 100% to 0, and the proportion of the ceramic with low strength and hightransparency is gradually increased from 0 to 100%; an occlusal surface or an attractive area of a CAD digital model of the dental prosthesis is placed on a bionic performance/color layer, and an axial surface area is placed on a high-strength anti-fracture layer; and making is completed by utilizing dental prosthesis manufacturing equipment. The method has the advantages that the problems that ajaw tooth is excessively worn by a high-strength single-layer full zirconia prosthesis, no stress buffer exists in the all-ceramic prosthesis implanting process, and the prosthesis is prone to beingfractured in the long time when totally adopting a bionic abrasion-resistant ceramic material can be solved, and meanwhile, the bionic color effect of the prosthesis can be achieved.

The invention relates to an abutment for connecting a dental prosthesis to a dental implant, the abutment comprising a body portion for supporting the dental prosthesis and a contact surface apical to said body portion for contacting the dental implant.

In order to allow an adjustment of the tooth restoration structure to properties of a natural tooth the abutment is composed of a resin that is reinforced with fibers substantially extending over the total length of said body portion towards said contact surface.

The plastic clear band for dental restoration is a dental matrix band having an elongate body with first and second ends and at least one light transmissive portion midway between the first and second ends. The first and second ends have a thickness greater than the light transmissive portion, the band tapering in thickness from a thin central portion to the thick first and second ends. The thick first and second ends are adapted to provide a bearing surface for the clamping screws of a matrix band retainer, while the thin central portion provides a snug fit and tight contact with the tooth. The band is made from biocompatible plastic, and has an inverted V-shape or chevron configuration when viewed from the front.

A system and methods for obtaining and processing data requisite for fabrication of a dental restorative prosthesis. A dental temporary is fashioned at a site of patient treatment, and fitted in the patient's mouth. The temporary is then characterized by three-dimensional digital data based on distances measured by means of three-dimensional co-ordinate measuring equipment. The three-dimensional data are transmitted to a fabrication site, where a prosthesis may be fabricated. Additionally, information based upon the three-dimensional digital data characterizing the temporary may also be provided to a dentist at the site of patient treatment. The prosthesis design may be edited prior to fabrication.

The present invention may be embodied as a method or a system for generating an order for a dental restoration of an individual. An automated tooth selection apparatus is disclosed, comprising an image capture device and a processor. The automated tooth selection apparatus is configured to capture range data for each captured image, wherein the range data corresponds to the distance between the image capture device and the individual. An image is captured of a facial feature of the individual using the image capture device. The processor is used to determine the size of the facial feature of the individual. A tooth for the dental restoration of the individual is selected from a database of available teeth based on the determined size of the facial feature. An order for a dental restoration is generated including the selected tooth.

Disclosed is a patient-specific mandibular implant inserted into a mandibular defect region and a method of manufacturing the same, and more particularly, to a patient-specific mandibular implant inserted into a mandibular defect region, which can be easily and rapidly manufactured using personalized three-dimensional (3D) printing technology for a defect region, can provide an effect of preparing a later step for restoring a tooth in advance, and can be easily manufactured tooth restoration data based on the Korean standard database (DB), and a method of manufacturing the same.

The invention provides a dental restoration system comprising a crown base such as a dentin or an abutment and a shape determiner that surrounds and measures the shape of an apical part in the crown base. The invention also provides a method of dental restoration, which comprises measuring the shape of the crown base that is not surrounded by the shape determiner; determining the shape of the entire crown base; and preparing a crown to be secured on the crown base. The invention exhibits merits such as a much simpler procedure, less gum injury and bone recession, cost-effectiveness, and excellent compatibility with CAD/CAM system, among others.

The invention discloses a preparation method of a guided tissue regeneration membrane for tooth restoration, wherein the preparation method comprises the following steps: (1) dissolving a synthetic polymer material in an organic solvent, uniformly dispersing, pouring the solution into a culture dish, and freezing; and obtaining a first layer structure; (2) dissolving a natural polymer material inan organic solvent, adding inorganic bioactive particles, uniformly dispersing, casting the mixed solution onto the first layer structure, and then freezing; and obtaining a composite layer structure;and (3) carrying out freeze drying on the composite layer structure obtained in the step (2). The synthetic polymer and natural polymer composite material is adopted, so that the biocompatibility ofthe composite membrane is improved while the mechanical property of the composite membrane is improved; a gradient temperature freezing mode is adopted in a matched mode, distribution of pore structures on the longitudinal structure of the composite membrane is regulated and controlled, the pore structure with the gradient structure is formed, adhesion and growth of cells are better facilitated, and a remarkable effect is achieved.

The method involves determining image data i.e. three-dimensional data, of external contour of a dental restoration part (20) and applied layers of the part. The part is arranged in an image recording area of an image recording device i.e. three-dimensional camera. Layer thickness and/or color of the layers are determined before the manufacturing of the part. The layer thickness is compared with the image data, and an error signal is produced when the layer thickness and/or the color and/or other parameter do not correspond to predetermined layer based on the image data. An independent claim is also included for a dental oven.

The invention provides a biological agent for promoting proliferation and migration of dental pulp stem cells, and belongs to the technical field of stem cells. CCK-8, fluorescent quantitative PCR, Transwell experiments and Western Blot experiments prove that the capparis spinosa polysaccharide can effectively promote proliferation and cell migration of dental pulp stem cells, and possibility is provided for further developing application of the dental pulp stem cells in the aspect of dental restoration.

The invention relates to a tooth restoration device which comprises a box body, an opening is formed in the side wall of the box body, and a door body used for closing the opening is hinged to the box body; a supporting rod is arranged in the box body and located on the bottom wall of the box body, a supporting plate is arranged at the end, away from the bottom wall of the box body, of the supporting rod, and a fixing device used for fixing teeth is arranged on the supporting plate; a strip-shaped opening is formed in the top wall of the box body, a movable plate is slidably arranged on the top wall of the box body in the length direction of the strip-shaped opening, and an acid etching device and a cleaning device are arranged on the movable plate and located on the two sides of the movable plate; and the movable plate is provided with a driving device used for driving the movable plate to move in the length direction of the strip-shaped opening. The method has the advantage of saving manpower for artificial acid etching and tooth restoration cleaning.

Wound-healing unit for connection to a dental implant during a wound-healing phase of a dental restoration procedure, comprising a wound-healing element (10) intended to be surrounded at least partially by gum (63), and an abutment (1) intended to be fixed in an implant (60), characterized in that the wound-healing element comprises a lateral surface (13), which is intended to be integrated within gum in order to shape the gum during the wound-healing thereof, and an end surface (14), a part of the lateral surface (13) and of the end surface (14) forming a protruding surface, which is intended to remain outside the gum and is asymmetrical with respect to at least a perpendicular median plane, and in that the abutment comprises a longitudinal axis (L) along its entire length, for alignment with the axis of an implant (60).

A process for fabricating a tooth restoration includes mixing a high fusing ceramic material, a low fusing ceramic material and a base material into a viscous liquid. The viscous liquid is applied to a tooth restoration base. Thereafter, the low fusing ceramic material is melted to adhere the high fusing ceramic material to the base. An overlay is then applied the high fusing ceramic material.

The invention discloses ion co-doped beta-dicalcium silicate powder, a preparation method and an application. The composition general formula of the ion co-doped beta-dicalcium silicate powder is Ca<2-x>M<x>(SiO4)<1-y>(BO3)<y>, M ions are one or more metal cations capable of replacing Ca<2+> ions, x is greater than 0 and less than or equal to 1, the borate ions BO3<3-> are anions capable of partially substituting SiO4<4-> ions, and y is more than or equal to 0 and less than or equal to 0.05. The ion co-doped beta-dicalcium silicate powder provided by the invention can realize various biological functions such as bone cell induced conduction, vascularization promotion, bacteria resistance and bacteriostasis, and can meet clinical application requirements such as dental restoration, jawbonerestoration, spine restoration, joint restoration and other hard tissue restoration. The preparation method provided by the invention has the advantages of low synthesis temperature, short synthesis time, no environmental pollution, batch production and the like.