Class / Patent application number | Description | Number of patent applications / Date published |
433223000 | Method of fabricating | 40 |
20080233542 | System for optimising the formation of refractory moulds for multiple metal castings in the production of fixed dental prostheses - According to the invention, the components of the system have been optimised such that they interact and complement each other and such that one cannot operate without the other in the formation of refractory moulds for multiple metal castings in the production of fixed dental prostheses. The invention also relates to a mechanical metal device for positioning increased length refractory cylinders in standard horizontal centrifuges, thereby increasing the number of fixed dental prostheses that can be cast at one time. | 09-25-2008 |
20080241798 | METHOD FOR MANUFACTURING DENTAL PROSTHESES, METHOD FOR CREATING A DATA RECORD AND COMPUTER-READABLE MEDIUM - A method for manufacturing one or several dental prostheses, comprising the steps of: performing a rapid prototyping method for manufacturing one or several dental prostheses and subsequent working, such as reworking, of the one or several dental prostheses with a machining method, such as a milling method. In addition, a method for creating a data record which can be used for a rapid prototyping method for manufacturing a dental prosthesis wherein an end data record is obtained from a starting data record, so that in at least one area of a dental prosthesis manufactured with the end data record excess material is provided, compared to a dental prosthesis manufactured with the starting data record. | 10-02-2008 |
20080254413 | PROCESS FOR THE PRODUCTION OF A HEAD PIECE OF A TOOTH IMPLANT AND MANUFACTURING KIT FOR SUCH A PROCESS - A process for manufacturing a head piece ( | 10-16-2008 |
20080254414 | DENTAL ABUTMENT BLANK WITH PREFORMED PASSAGE - A dental blank has having a preformed passage configured to receive a dental screw fixation before or after milling by a CAD/CAM milling machine which can detect an exposed dental screw fixation or an exposed opening of the passage as a reference location. A method to provide a dental blank adapted for use as a reference location by a milling machine and/or a formation to facilitate a dental screw fixation to the blank, includes forming a blank and providing a passage through the blank, for example, by drilling. | 10-16-2008 |
20080305458 | METHOD AND APPARATUS FOR COMBINING A NON RADIOGRAHPIC IMAGE WITH AN XRAY OR MRI IMAGE IN THREE DIMENSIONS TO OBTAIN ACCURACY OF AN INTRA ORAL SCAN AND ROOT POSITION - A method includes the steps of: generating a three dimensional intra-oral image of the crown of a tooth or crowns of a plurality of selected teeth; generating a three dimensional image of the root of the corresponding tooth or roots of the corresponding selected teeth; and compositing the three dimensional images of the crown(s) and root(s) of the tooth to produce a composite image. An apparatus comprises means for performing each the foregoing steps. A computer-readable storage medium includes instructions for controlling a computer system to perform each of the steps. | 12-11-2008 |
20080318189 | Solid Free-Form Fabrication Methods For The Production of Dental Restorations - Solid free form fabrication techniques can be utilized indirectly to manufacture substrates, dies, models, near-net shapes, shells, and wax-ups that are then used in the manufacture of dental articles. Digital light processing is the most preferred indirect method for the production of substrates. After the substrates are produced, various coating or deposition techniques such as gel casting, slip casting, slurry casting, pressure infiltration, dipping, colloidal spray deposition or electrophoretic deposition are used to manufacture the dental article. | 12-25-2008 |
20090004630 | Strengthened ceramic restoration - The present invention relates to a process for the preparation of a full-ceramic dental restoration, comprising heat pressing of a tooth coloured pressing glass on a fully or partially supporting structure of yttria doped tetragonal zirconia (YTZP), comprised of yttria doped tetragonal zirconia ceramic having a grain size, as measured by the linear intercept method, of less than 0.6 μm, wherein the pressing glass has a thermal expansion coefficient (TEC) of between 9.0 and 11.0 μm/m.K (measured in the range of from 25 to 500° C.) and wherein the pressing glass has a pressing temperature of between 750 and 1200° C. In a further aspect, the invention relates to a full-ceramic dental restoration, comprising a fully or partially supporting structure of yttria doped tetragonal zirconia (YTZP) and a heat pressed tooth coloured pressing glass, which restoration is modeled to be in occlusal contact with opposing teeth and in mesio-distal contact with neighbouring teeth. | 01-01-2009 |
20090023113 | Dental Appliance On-Line Ordering Including Display Of End Product Image And Mold Three-Dimensional Scanning For Digital Transmission - A method for on-line manufacturing of a dental appliance for the mouth of a patient, includes the steps providing a menu of questions to a user soliciting specifying information for specifying a manufacturing process to manufacture the dental appliance for the patient and producing a dental model of said mouth of said patient. The method also requires transmitting by said user said specifying information to a first manufacturing laboratory by way of the internet to create a user order for said dental appliance and transmitting said dental model by said user to said first manufacturing laboratory. The dental appliance is manufactured by said first manufacturing laboratory in accordance with said fitted specifying information and said transmitted model to provide a manufactured dental appliance. | 01-22-2009 |
20090035726 | Dental Prosthesis - The method for producing ceramic coping of the present invention comprises the following steps: (i) covering a tooth model with at least one layer of plastic; (ii) coating a plastic covered tooth model from step (i) with alumina gel and letting it dry to form a ceramic coping in green state; (iii) sintering the ceramic coping in green state from step (ii) at a temperature up to 1200° C.; (iv) coating the ceramic coping from step (iii) with crystal hardening powder; (v) firing the crystal hardening powder coated ceramic coping from step (iv) at a temperature up to 1200° C. for effecting crystal hardening of the ceramic coping. Then, the finished ceramic coping can be coated with an outer aesthetic layer to form a dental prosthesis. | 02-05-2009 |
20090068620 | System and method for the contactless determination and measurement of a spatial position and/or a spatial orientation of bodies, method for the calibration and testing , in particular, medical tools as well as patterns or structures on, in particular, medical tools - In order to develop known tracking systems, in particular in the medical field, the invention proposes a device for the contactless determination and measurement of a spatial position and/or spatial orientation of bodies using a tracking system, by means of which the bodies are located and brought into relation with one another, the tracking system, or at least components or modules thereof, being mobile. | 03-12-2009 |
20090087817 | Method for producing a crown for an implant abutment - A method of producing a crown for a custom implant abutment is carried out as follows. The method begins by preparing a patient's existing dental structures, viz., positioning a dental implant in the patient's mouth. Using a scanner device and associated modeling software, a first 3D model is obtained of a sufficiently large portion of an implant abutment to be attached to the implant. This scan is performed extra-orally. Preferably, the sufficiently large portion is that portion of the abutment bounded by a margin curve. After the implant abutment is attached to the implant (intra-orally), the scanner is used to obtain a second 3D model of the implant abutment attached to the implant (i.e., an intra-oral scan). Using the modeling software, the first 3D model is then aligned to the second 3D model. Thereafter, a boundary curve on the first 3D model is identified. Using the boundary curve to trim the first 3D model, the system then produces a third 3D model. Using the boundary curve, the third 3D model and the second 3D model, the system then creates a fourth 3D model, which is a model of a virtual dental item. Using a computer-assisted milling machine, the model of the virtual dental item is then used to produce an actual crown, which is then attached to the implant to complete the process. | 04-02-2009 |
20090087818 | DENTAL PROSTHESIS MANUFACTURING PROCESS, DENTAL PROSTHESIS PATTERN & DENTAL PROSTHESIS MADE THEREBY - A dental prosthesis is made by first forming a model of a patient's dentition. A three dimensional digital data corresponding to the surfaces of the model is then created. Based on this data, a three dimensional digital data file is then created substantially corresponding to the dental prosthesis to be manufactured. The three dimensional digital data of the dental prosthesis to be manufactured is next transmitted to automated prototyping equipment, and using the automated prototyping equipment, a wax pattern of the dental prosthesis is manufactured based upon this three dimensional digital data of the dental prosthesis. Finally, using this wax pattern in the lost wax investment casting process, the dental prosthesis is made. Prior to investment casting, marginal edges of the wax pattern are adjusted manually. | 04-02-2009 |
20090104585 | DENTAL FRAMEWORK - A method of preparing a dental framework or mathematical model thereof comprises creating a replica of a patient's mouth or a framework to be inserted into the patient's mouth, electronically scanning the replica or framework, electronically determining a surface model of a dental framework and manufacturing the framework. | 04-23-2009 |
20090136902 | BLANK AS A DRILLING TEMPLATE AND FOR RECORDING DATA SETS - Process for defining a common reference system between, on the one hand, a set of image data, which show the jaw ( | 05-28-2009 |
20090148816 | DESIGN OF DENTAL APPLIANCES - Electronic models of components of dental appliances can be generated based on the outer surface of an electronic model of the dental appliance. The outer surface may be generated based on the dentition and anatomy of the patient. For example, automated processes may identify landmarks in the anatomy and define the outer surface based on the identified landmarks. Alternatively, the outer surface may be generated based on statistical data. A management system coordinates automated processes with interactive processes to facilitate collaboration of remotely located technicians and equipment in generating electronic models. | 06-11-2009 |
20090186319 | PROCESS FOR MANUFACTURING CUSTOM CROWN COPINGS AND INFRASTRUCTURES - A method of manufacturing custom crown coping and infrastructures is provided. A metal portion (base) of an abutment is located in a model of a patient's mouth and the model is scanned. The data from the scan is then utilized to manufacture the ceramic portion of the abutment and the coping. In one embodiment, the coping and infrastructure is designed by first determining the shape and orientation of the final crown, subtracting a thickness for the crown from the shape to determine the shape and orientation of a coping, and subtracting a thickness for the coping to form the shape and orientation of an abutment. | 07-23-2009 |
20090191512 | PROCESS FOR MAKING A DENTAL RESTORATION AND RESULTANT APPARATUS - A process for making a dental restoration includes forming a dental restoration base, selecting a decal representing a natural oral cavity characteristic, and attaching the selected decal to the base. Thereafter, the decal and the dental restoration base are conditioned to create a finished dental restoration having desired oral cavity color and characteristics such as teeth, enamel, dentin, crazing lines, stains, veins, blood vessels, bony coloration, hyper-calcification, mucosal tissue or gum tissue. In an alternative embodiment, the process may include placing a sealant over the decal and at least a portion of the dental restoration base. Additionally, a secondary decal may be attached over the sealant, followed by glazing the secondary decal. | 07-30-2009 |
20090215010 | Dental restoration and method for producing the same, and porcelain paste for dental restoration - Provided is a dental restoration having improved conformity and bonding to a foundation. A method for producing such a dental restoration and a porcelain paste for the dental restoration are also provided. | 08-27-2009 |
20090233258 | Method for Producing a Tooth Replacement Having a Multi-Layer Structure - The invention is directed to a method for the production of an individual tooth replacement formed of multiple layers, for example, a removable tooth replacement, implant superstructures, bridges, crowns, partial crowns, onlays and inlays. According to the invention, this object is met by a method for producing a tooth replacement formed of multiple layers in that a CAD data set of the tooth replacement to be produced is initially made by digitizing the teeth which are already prepared and their immediate surroundings into which the tooth replacement is to be inserted, in that a first CAD partial data set and a second CAD partial data set are determined from this CAD data set, the first CAD partial data set representing the supporting framework structure of the tooth replacement and the second CAD partial data set representing the aesthetically and/or functionally relevant outer geometry of the tooth replacement which faces predominantly toward the oral cavity, in that the supporting framework structure is then produced by the first CAD partial data set, and the supporting framework structure for the multilayer tooth replacement is then finished using the second CAD partial data set by applying a functional layer, for example, in the form of a ceramic veneer or a polymer facing the mucous membrane. | 09-17-2009 |
20090246739 | Furnace for the thermal treatment of a dental firing object - A furnace for the thermal treatment of at least one dental firing object, comprising a housing, a firing chamber, a firing chamber base, a heating device, and at least one optical temperature detection element which can be used to detect a temperature in the firing chamber and is intended to enable a contactless temperature measurement of a dental firing object in a simple manner. This is achieved by virtue of the fact that the firing object is mounted on and/or in and/or below and/or alongside a firing aid situated in the firing chamber, and the optical temperature detection element detects the temperature of the firing aid. | 10-01-2009 |
20090269723 | Methods for preparing chair-side dental crowns - The invention provides a method of forming dental restorations, particularly dental crowns. The method involves applying a flexible spacer material having a polymerization system capable of being activated by light to a prepared tooth surface. A composite crown-forming material is dispensed into a transparent plastic matrix. The matrix is placed in the mouth of the patient so the composite material is molded over the tooth surface coated with the spacer material. Then, the composite is irradiated with curing light, through the matrix, so that it hardens to form a dental crown. The crown is removed, trimmed and finished, and then permanently affixed to the tooth. | 10-29-2009 |
20090275000 | System and Method for Securing Multiple Ceramic Dental Blocks for Milling - A system and method for milling dental prostheses in a CNC milling includes affixing a lateral side of each of a plurality of ceramic millable dental blanks to a lateral wall of a fixture; securing the fixture to a chuck of the milling machine; wet milling a single dental prosthesis in each of the plurality of ceramic millable dental blanks with a diamond burred cutter; and removing the plurality of ceramic millable dental blanks from the fixture. | 11-05-2009 |
20090280455 | INTERACTIVE DENTAL RESTORATIVE NETWORK - The invention relates to a computer readable medium that includes one or more programs for carrying out a method for restoration of a patient's tooth. The method includes the steps of generating an electronic image of a patient's tooth; providing a preliminary treatment plan for addressing the dental needs of the patient; and forwarding the electronic image and preliminary treatment plan to a dental laboratory so that technician can evaluate the image and treatment plan and in a manner such that the technician and dentist can review and discuss the preliminary treatment plan. | 11-12-2009 |
20100021868 | DENTAL CROWN FORMS AND METHODS - Dental crown forms and methods of using them are disclosed. The dental crown forms may include one or more of the following features: a handle attached to the dental crown form at a location removed from the base of the dental crown form; a vented handle through which excess amounts of hardenable dental material can pass during placement of the crown form; and one or more lines of weakness that may be separated to remove a dental crown form from hardenable dental material after placement of the filled crown form. The dental crown forms may also be located in packages with hardenable dental material located within the dental crown forms as packaged. | 01-28-2010 |
20100028836 | PROCESS FOR PRODUCING DENTAL PROSTHESES - In the process for producing dental prostheses such as bridges, crowns implants, etc. from ceramic material, production is carried out at least by way of one CAD/CAM machining station. The ceramic material to be worked consists of an unsintered disk-shaped blank or one which has not been subjected to final sintering, working of the blank into dental prostheses being undertaken at a right angle or quasi-right angle to the parallel or quasi-parallel surfaces of the blank. | 02-04-2010 |
20100092923 | Methods for production of dental prosthetics - A method of producing a dental prosthetic includes preparing a coping, preparing a restoration, and attaching the coping to the restoration at a temperature less than about 850° C. | 04-15-2010 |
20100112527 | METHOD FOR FABRICATING AN IMPLANTED DENTAL RESTORATION - A method for fabricating an implant-based dental restoration includes attaching an abutment analog to a dental implant contained in a patient's mouth in an angularly indexed fashion. After an impression is made, an implant analog will be attached to the abutment analog, which is contained within the impression, and the assembled impression, including the abutment analog, including an impression coping and abutment base, will be employed along with the implant analog to make a model of a patient's mouth structure, including thread-timed implant analogs, to permit fabrication of an angle-corrected dental restoration device in a laboratory. | 05-06-2010 |
20100203480 | DENTAL CROWN SHELL AND METHOD OF USE - A dental crown shell is disclosed, as well as a method of preparing the crown by in-situ polymerization of resin within a thin shell that undergoes an exothermic reaction that releases sufficient heat to bond the resin to the shell and form a durable crown for placement in the mouth of a patient. | 08-12-2010 |
20100297587 | DENTAL CROWNS - The present invention provides a dental crown formed of an elastically thermoplastic polymer material, said crown comprising: a tooth shaped top surface; and flexible side surfaces, at least one of which includes inwardly directed bottom portion. | 11-25-2010 |
20110027759 | METHODS FOR PREPARING CHAIR-SIDE DENTAL CROWNS - The invention provides a method of forming dental restorations, particularly dental crowns. The method involves applying a flexible spacer material having a polymerization system capable of being activated by light to a prepared tooth surface. A composite crown-forming material is dispensed into a transparent plastic matrix. The matrix is placed in the mouth of the patient so the composite material is molded over the tooth surface coated with the spacer material. Then, the composite is irradiated with curing light, through the matrix, so that it hardens to form a dental crown. The crown is removed, trimmed and finished, and then permanently affixed to the tooth. | 02-03-2011 |
20110070562 | DENTAL PROSTHESIS MANUFACTURING PROCESS, DENTAL PROSTHESIS PATTERN & DENTAL PROSTHESIS MADE THEREBY - A dental prosthesis is made by first forming a model of a patient's dentition. A three dimensional digital data corresponding to the surfaces of the model is then created. Based on this data, a three dimensional digital data file is then created substantially corresponding to the dental prosthesis to be manufactured. The three dimensional digital data of the dental prosthesis to be manufactured is next transmitted to automated prototyping equipment, and using the automated prototyping equipment, a wax pattern of the dental prosthesis is manufactured based upon this three dimensional digital data of the dental prosthesis. Finally, using this wax pattern in the lost wax investment casting process, the dental prosthesis is made. Prior to investment casting, marginal edges of the wax pattern are adjusted manually. | 03-24-2011 |
20110183298 | METHODS FOR MAKING DENTAL RESTORATIONS USING TWO-PHASE LIGHT-CURING MATERIALS - Methods for making dental crowns, bridges, inlays, onlays, veneers, fillings, and other restorations are provided. The methods involve using a two-phase light curing (TPLC) material. Preferably, the TPLC material used to form the dental restoration comprises a blend of polymerizable compounds; photopolymerization systems (a) and (b), and particulate filler materials (a) and (b). In a first light-curing step, curing light having a wavelength of greater than 420 nm is used to activate system (a). In a second light-curing step, curing light having a wavelength of less than 420 nm is used to activate system (b). The two step light-curing method is efficient and allows the dentist to make restorations having high mechanical strength and pleasing aesthetics. | 07-28-2011 |
20120100508 | INTERACTIVE DENTAL RESTORATIVE NETWORK - The invention relates to a computer readable medium that includes one or more programs for carrying out a method for restoration of a patient's tooth. The method includes the steps of generating an electronic image of a patient's tooth; providing a preliminary treatment plan for addressing the dental needs of the patient; and forwarding the electronic image and preliminary treatment plan to a dental laboratory so that technician can evaluate the image and treatment plan and in a manner such that the technician and dentist can review and discuss the preliminary treatment plan. | 04-26-2012 |
20120171642 | METHOD FOR PRODUCING DENTURE PARTS OR FOR TOOTH RESTORATION USING ELECTRONIC DENTAL REPRESENTATIONS - The invention relates to a method for producing denture parts or for tooth restoration. According to said method, to reconstruct a tooth requiring repair or a defective condition, at least some of the missing exterior surfaces of denture parts or tooth restoration are adapted to the existing residual tooth material and/or the opposing teeth and/or the position of the neighbouring tooth and/or the occlusion position, by means of the optimisation of a generic dental-model data record of the desired tooth type, thus varying the linear factors of at least the most important components, (determined from the electronic data records of a larger number of measured tooth surfaces by primary axis analysis methods), in such a way that the selected optimisation criteria are fulfilled by the minimisation of an error function. After the successful adaptation of said surfaces to the residual occlusion position and the completion of the data record, the reconstructed denture part or the reconstructed tooth restoration is machine-manufactured. | 07-05-2012 |
20120231421 | DIGITAL DENTISTRY - The systems and methods disclosed herein employ a scanning system for capturing highly detailed digital dental models. These models may be used within a dentist's office for a wide array of dental functions including quality control, restoration design, and fitting. These models may also, or instead, be transmitted to dental laboratories that may, alone or in collaboration with the originating dentist or other dental professionals, transform the digital model into a physical realization of a dental hardware item. | 09-13-2012 |
20130089837 | CUSTOM HEALING CAP FOR DENTAL IMPLANTOLOGY AND METHOD FOR DESIGN AND MANUFACTURING THEREOF - A computer based method is used to design a healing cap of an implant. The method is based on a 3D computer plan of the implant comprising digital representations of positions of implants in the mouth of the patient. The method comprises loading the 3D implant plan into a computer and combining the 3D implant plan with information about a prosthetic setup. The method determines a marginal edge of a healing cap of an implant based on a 3D representation of the existing patient anatomy, the 3D implant plan and the prosthetic set-up. The healing cap is then manufactured to the custom design. | 04-11-2013 |
20140099604 | DENTAL MARKING PRODUCT WITH VARYING WIDTHS AND THICKNESSES FOR GAUGING AND MARKING OCCLUSAL CLEARANCE TO FACILITATE FABRICATION AND INSTALLATION OF A DENTAL RESTORATIVE ELEMENT - A dental marking product for gauging and marking occlusal clearance between a prepared tooth or teeth and an opposing tooth or teeth or dental restoration to facilitate fabrication and installation of a dental element. The product includes flexible tapes, strips, or paper which include a marking agent. Each strip has a narrow portion at a first end of the strip and a wide portion at a second end of the strip. Each strip has a thickness corresponding to a determined occlusal clearance between the prepared tooth or teeth and the opposing tooth or teeth or dental restoration. The occlusal clearance is determined based on characteristics of the dental element to be fabricated and installed, and the material of which it is formed, on the prepared tooth or teeth. The marking agent marks at least portions of the prepared tooth or teeth or the opposing tooth or teeth or dental restoration which protrude into a gap defined by the determined occlusal clearance. | 04-10-2014 |
20160000524 | PROCESS FOR PRODUCING DENTAL RESTORATION - The invention is related to a process for producing a dental restoration, the process comprising the steps: —shape a dental restoration out of a shapeable material being placed on a dental situation to be restored in the mouth of a patient, —make an impression of the shaped dental restoration placed on the dental situation to be restored by using a dental impression material, —remove the dental impression material and the shaped dental restoration from the dental situation in the mouth of a patient, —place a curable dental composition in the negative mould of the dental impression material relating to the dental situation to be restored. The invention is also directed to a kit of parts comprising a shapeable material, a curable dental composition, optionally a dental cement, optionally a dental impression material, instruction for use. | 01-07-2016 |
20160051340 | TEMPORARY RESIN-BASED CROWN - The present invention relates to a temporary resin-based crown that is used in dental prosthetic surgery to protect a prepared tooth before a final prosthesis is mounted on the prepared tooth, to a method for manufacturing the temporary resin-based crown, to a set of temporary resin-based crowns, and to a method for utilizing the set of temporary resin-based crowns. The temporary resin-based crown includes a body made of a thermoplastic resin softened at a temperature of 50 to 90° C. and having a hollow portion formed at the interior thereof, the body being standardized by the occlusal surface of a tooth, the outer shape of a tooth, a crown length, a mesiodistal crown diameter, a mesiodistal cervical area diameter, and labia-lingual and buccolingual crown diameters, and one temporary resin-based crown or two or more temporary resin-based crowns connected to each other is (are) provided. | 02-25-2016 |
20160135923 | METHOD FOR PREPARING PRIMARY CROWN BY USING LITHIUM DISILICATE, AND PRIMARY CROWN USING SAID PREPARATION METHOD - A method for preparing a primary crown by using lithium disilicate used for restoring the primary crown of children, and a primary crown using the preparation method comprises the steps of: three-dimensionally modeling the shape of a primary crown by using a computer program; processing a wax model by using a milling machine; drawing out the wax model; embedding the wax model together with an embedding material into an embedding material frame; drying the embedding material; evaporating a wax constituting the wax model by heating the embedding material; | 05-19-2016 |