The purpose of the present invention is to provide an adhesive monomer for a dental material, having a function of improving adhesion strength to tooth structures during dental therapy, and to provide an adhesive monomer for a dental material which imparts high mechanical strength to a cured product. An adhesive monomer for a dental material is provided which contains a compound represented in general formula (1), which comprises a core part (X) and a terminal group (Y1) bonded together directly or with a linking group (Z) interposed therebetween. (1) X(Y1)n1a(Z-Y1)n1b (in general formula (1) above, n1a represents the number of terminal groups (Y1) directly bonded to the core part (X), n1b represents the number of terminal groups (Y1) bonded to the core part (X) with a linking group (Z) interposed therebetween, and the sum of n1a and n1b is equal to the valence of the core part (X); the core part (X) contains an oxygen atom or a nitrogen atom, and is a polyvalent organic group of 1-200 carbons having a valence of 3 or more, in which the atom bonding to the terminal group (Y1) or the linking group (Z) is an oxygen atom or nitrogen atom; the terminal group (Y1) is a specific phosphorus-containing group, a specific (meth)acryloyl group-containing group (Y2), a (meth)acryloyl group, a hydrocarbon group with 1-20 carbons, or a hydrogen atom; multiple terminal groups (Y1) may be the same or different, however, one or more of all the terminal groups (Y1) in the compound represented by general formula (1) are a specific phosphorous-containing group, and one or more is a (meth)acryloyl group-containing group (Y2); the linking group (Z) is a specific divalent group, and if multiple linking groups (Z) are included, then the linking groups (Z) may be the same or different.)
securing the physical prosthesis teeth to a physical prosthesis base, wherein the prosthesis base is inserted into the template fitted with the prosthesis teeth, such that the vestibular surface of the prosthesis base is placed in the matching surface of the template formed by the negative.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
The invention relates to a temporary dental prosthesis for determining abrasion facets, having at least one prosthetic tooth, in which at least the occlusion surface of the prosthetic tooth or at least one of the prosthetic teeth is made of a material that is abradable such that, within a maximum of 12 weeks of use as a dental prosthesis by a patient, abrasion facets are produced on the prosthetic teeth and are suitable for ascertaining the chewing movements of the jaw of the patient. The invention also relates to a method for determining the chewing movement of a set of teeth from measured abrasion facets, in which a temporary dental prosthesis made of an abradable material is inserted in a patient, and to a method for producing a final dental prosthesis.
G) Allowing the cement or adhesive to harden, the prosthetic teeth being solidly connected with the prosthetic base, so that the orientation and position of the prosthetic teeth to one another and to the prosthetic base is fixed, and separating the key from the prosthetic teeth.
The invention also relates to a dental prosthesis produced using such a process and a kit to carry out such a process.
The invention relates to a method for producing a dental prosthesis from a prosthesis base (1) and plurality of prosthesis teeth (4), characterized by the following chronological steps: providing the prosthesis teeth (4) and the prosthesis base (1), wherein the prosthesis base (1) has a plurality of tooth sockets (2) for applying basal surfaces of the prosthesis teeth (4); a plastically deformable connecting element (8) is applied to the tooth sockets (2) and/or basally to the prosthesis teeth (4); the prosthesis teeth (4) are applied to the tooth sockets (2) of the prosthesis base (1) and connected to the prosthesis base (1) by means of the connecting element (8) in such a way that the prosthesis teeth (4) can be moved in relation to the prosthesis base (1) after the prosthesis teeth have been applied to the tooth sockets (2), wherein the position and the orientation of the prosthesis teeth (4) in relation to the prosthesis base (1) are maintained if no external force is applied to the prosthesis teeth (4); the position and/or the orientation of at least one prosthesis tooth (4) in the prosthesis base (1) is changed; and the plastically deformable connecting element (8) is hardened and the prosthesis teeth (4) are fixedly connected to the prosthesis base (1), wherein the position and the orientation of the prosthesis teeth (4) in relation to the prosthesis base (1) are maintained. The invention further relates to a dental prosthesis produced by such a method, and to a kit for carrying out such a method.
The invention relates to a method for producing a dental prosthesis, wherein the dental prosthesis comprises a prosthetic base (3) and a plurality of prosthetic teeth (2), wherein the method is carried out using a virtual three-dimensional dental prosthetic model of the physical dental prosthesis to be generated, and wherein the virtual three-dimensional dental prosthetic model comprises virtual prosthetic teeth (2) and a virtual prosthetic base (3), comprising the steps: a virtual model of a template (1) is calculated from the outer shape of the vestibular surfaces (9) and/or the occlusal surfaces (8) of the virtual prosthetic teeth (2) and from the outer shape of the vestibular surface of the virtual prosthetic base (3) of the virtual three-dimensional dental prosthetic model, such that an area of the virtual surface of the virtual template (1) is formed by a negative of the vestibular surfaces (9) and/or occlusal surfaces (8) of the virtual prosthetic teeth (2) and of the virtual prosthetic base (2), wherein the position and the orientation of the virtual prosthetic teeth (2) relative to one another and relative to the virtual prosthetic base (3) is retained in the negative; producing a physical template (1) using a CAM method with the aid of the data of the virtual model of the template (1); applying and mounting physical prosthetic teeth (2) on the template (1), wherein the vestibular surfaces (9) and/or occlusal surfaces (8) of the prosthetic teeth (2) are applied on the surface of the template (1) moulded using the matching negative; and fixing the physical prosthetic teeth (2) on a physical prosthetic base (3), wherein the prosthetic base (3) is inserted into the template (1) populated with the prosthetic teeth (2), such that the vestibular surface (10) of the prosthetic base (3) is applied on the surface of the template (1) matchingly shaped by the negative.
The invention relates to a method for producing a dental prosthesis, wherein the dental prosthesis has a prosthesis base (1) and a plurality of prosthetic teeth (4), wherein the method is carried out using a virtual three-dimensional dental prosthesis model of the dental prosthesis to be generated and wherein the virtual three-dimensional dental prosthesis model has virtual prosthetic teeth and a virtual prosthesis base, characterized by the following chronological steps: A) producing a physical occlusion plate (10), wherein one region of the surface of the occlusion plate (10) is formed by a negative of the coronal sides of the virtual prosthetic teeth of the virtual dental prosthesis model, wherein the position and the orientation of the virtual prosthetic teeth relative to one another is maintained in accordance with the virtual dental prosthesis model in the form of the surface of the occlusion plate (10); B) applying and fastening pre-manufactured prosthetic teeth (4) on the occlusion plate (10), wherein the coronal sides of the pre-manufactured prosthetic teeth are applied onto the surface of the occlusion plate (10) formed by the negative; C) fastening the occlusion plate (10) with the prosthetic teeth (14) fastened therein into a 3D printer; and D) printing the prosthesis base (1) onto the basal ends (8) of the prosthetic teeth (4) with the 3D printer on the basis of the form of the virtual prosthesis base. The invention also relates to a dental prosthesis produced by such a method, and to a device for carrying out such a method.
The invention relates to a mold for producing a pre-molded prosthesis-base blank, wherein the pre-molded prosthesis-base blank is provided for producing a prosthesis base for a dental prosthesis by means of a subtractive CAM method, wherein the mold has an inner surface (21, 22, 24, 26), which is a negative of the prosthesis-base blank to be produced, wherein the inner surface (21, 22, 24, 26) has a negative of a dental arch or of a dental arch segment having a thickening in the occlusal direction, and the mold consists of at least two parts (10), which are releasably fastened to each other or which can be releasably fastened to each other. The invention further relates to a method for producing a prosthesis-base blank by means of such a mold, wherein a heat-curing polymer or a cold-curing polymer is introduced into the at least two-part, assembled mold, subsequently the heat-curing polymer or the cold-curing polymer is cured, and subsequently thereto the parts (10) of the mold are released from the prosthesis-base blank. Finally, the invention further relates to a prosthesis-base blank.
The invention relates to a temporary dental prosthesis for determining abrasion facets, having at least one prosthetic tooth (8, 10) in which at least the occlusion surface (12) of the prosthetic tooth (8, 10) or at least one of the prosthetic teeth (8, 10) is made of an abradable material such that within a maximum of 12 weeks of use as a dental prosthesis by a patient, abrasion facets are produced on the prosthetic teeth (8, 10) which are suitable for ascertaining the chewing movements of the jaw of the patient. The invention further relates to a method for determining the chewing movement of a set of teeth from measured abrasion facets, wherein a temporary dental prosthesis made of an abradable material, preferably a dental prosthesis according to claims 1 to 8, is used on the patient and to a method for producing a final dental prosthesis.
The invention relates to a method for producing a dental prosthesis, with the following chronological steps: A) the prosthetic teeth are inserted into the prosthesis base (1) and are connected to the prosthesis base (1) in such a way that the prosthetic teeth, after insertion into the prosthesis base (1), have limited mobility in the prosthesis base (1); B) the position and/or the orientation of at least one prosthetic tooth in the prosthesis base (1) is modified; C) the prosthetic teeth are fixed on the coronal side in a wrench, and the setting and the position of the prosthetic teeth relative to one another are secured in the modified position and/or orientation; D) the prosthetic teeth are separated from the prosthesis base (1); F) the prosthetic teeth are secured in the prosthesis base (1) with a cement or an adhesive, wherein the spaces between the surfaces (2) of the prosthesis base (1), provided for fixing the prosthetic teeth, and the prosthetic teeth are filled with the cement or the adhesive; and G) the cement or the adhesive hardens, wherein the prosthetic teeth are firmly connected to the prosthesis base (1), such that the setting and the position of the prosthetic teeth relative to one another and relative to the prosthesis base (1) are secured, and the wrench is separated from the prosthetic teeth. The invention also relates to a dental prosthesis produced by such a method, and to a kit for carrying out such a method.
METHOD FOR PRODUCING A DENTAL ARRANGEMENT, WAX COMPONENT FOR A DENTAL ARRANGEMENT, AND DEVICE FOR AT LEAST PARTIALLY HEATING AN ARTIFICIAL TOOTH DURING THE PRODUCTION OF A DENTAL ARRANGEMENT
The invention relates to a method for producing a dental arrangement, in particular in a method for producing a partial or total prosthesis, wherein at least one artificial tooth (1) is arranged in wax. According to the invention, the artificial tooth (1) is at least partially heated prior to being arranged in wax. Furthermore, the at least partially heated artificial tooth (1) is used to melt the wax upon being arranged in the wax. The invention further relates to a wax element for a dental arrangement and to a device for at least partially heating an artificial tooth (1).
A61C 13/10 - Fastening of artificial teeth to artificial base material, e.g. to palates or to adjacent artificial tooth
A61C 13/093 - Artificial teethMaking same characterised by a shape which improves retention
12.
IMPROVED DEVICE FOR SUPPORTING PREFORMED ELEMENTS FOR PRODUCING SINGLE SUPERSTRUCTURES FOR DENTAL PROSTHESES AND SYSTEM FOR SUPPORTING THIS DEVICE ON THE PROCESSING MACHINE OF SAID PREFORMED ELEMENTS
A supporting device (10) of preformed elements for producing single superstructures of dental prostheses, of the type consisting of a supporting body comprising an interface (8) for supporting a preformed element (2) with respect to the same device. According to the invention, said supporting body has a stem (17, 24) provided with an element (20, 26) housed in correspondence with said stem and which has a surface (22, 27) for supporting the preformed element (2) with respect to the same supporting body, wherein said supporting surface (22, 27) has larger dimensions than those of the above-mentioned interface (8). With respect to the known embodiments in the field, the device of the invention offers the advantage of also resisting side milling loads of the preformed element, which can therefore also withstand the side loads necessary for producing undercuts and processings below the emergency profile. Thanks to the device of the invention, in fact, the loads generated by side-oriented processings with respect to the preformed element are converted to axial or vertical forces, which even small-dimensioned screws are able to resist.
The object of the invention is an auto-polymerizable 2-component prosthetic base material and a method for the production thereof, comprising: A) at least one liquid monomer component, and b) at least one powdery component, wherein the prosthetic material in the components (A) and/or (B) contains i) at least one initiator or an initiator system for the auto-polymerization, ii) core-shell particles modified by an elastic phase, and iii) at least one urethane dimethacrylate.
A61L 27/16 - Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
A61L 27/48 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with macromolecular fillers
A61L 27/50 - Materials characterised by their function or physical properties
14.
MILL BLANKS BASED ON A POLYMERIZED, FRACTURE-TOUGH PROSTHESIS MATERIAL
The invention relates to a three-dimensional moulded body, in particular a mill blank, composed of a polymer prosthesis material that is suitable for milling machining by means of CNC and/or CAD/CAM, having a fracture-toughness greater than or equal to 1.9 MPa.m1/2 and a fracture work greater than or equal to 900 J/m2. The mill blank preferably comprises a core-shell particle modified by an elastic phase and is optionally based on an amount of urethane-methacrylate polymerised therein. The invention further relates to the use of the mill blanks for producing at least parts of dental prosthetic parts, such as a prosthesis, artificial teeth, bridges, or also parts of jaw orthodontic apparatus and instruments in the medical field.
The invention relates to a dental prosthesis, in particular ready-made tooth replacements, into which a film layer (2) is integrated. The dental prosthesis is preferably formed in layers, being provided with an inner tooth portion (3), a film on the inner tooth portion (3), and another tooth portion (1) externally on the film, e.g. a facing portion or an incisor shell. The invention also relates to a method for producing the dental prostheses.
The invention relates to a prosthesis base which is made entirely or partly of a prosthesis material and/or wax and the upper face of which is provided with at least one substantially custom-fit recess (3) for accommodating portions of an artificial tooth (1). According to the invention, at least one duct (5) which runs into the recess (3) is formed in the prosthesis base (2). The invention further relates to a method for integrally bonding an artificial tooth (1) to a prosthesis base (2) which is made entirely or partly of a prosthesis material and/or wax and is provided with at least one substantially custom-fit recess (3) for accommodating portions of the artificial tooth (1).
The invention relates to a device and a method for producing three-dimensional objects (10), in particular at least parts of dental prosthetic fixtures, in that a scraping device (20) scrapes off into a collecting container (16) plastics (6) projecting over and above a container (8) and forms a projection surface (21b). In particular, a scraping device (20) and a light source (1) are simultaneously guided at a defined distance over the liquid, light-curable plastics (6), the scraping device (20) being moved at a defined distance from the light source (1), directly before it, and forming the projection surface (21b) for the irradiation field (5) of the light source (1).
The invention relates to a device and a method for producing three-dimensional objects (10), in particular at least parts of prosthetic dental supplies. A scraping device (20) scrapes plastic (6) projecting over the height of a container (8) into a collecting container (16) and forms a projection surface. According to the invention, a scraping device (20) and a light source (1) are coupled and are guided simultaneously with a defined spacing over the molten light-curing plastic (6). The scraping device (20) is guided directly in front of the light source (1) at a defined spacing thereto and forms a projection surface for the illumination field (5) of the light source (1).
The invention relates to a method for producing a dental prosthesis-base semi-finished product (6), comprising the following steps: 1) sensing and digitalizing the oral cavity situation of a patient (1), wherein a digital three-dimensional oral cavity model of the patient (1) is produced, or providing a digital three-dimensional oral cavity model of the oral cavity situation of a patient (1); 2) performing a first calculation, in which a digital three-dimensional first model (A) of a prosthesis base is calculated, wherein the oral cavity model of the oral cavity situation is used as the basis of the first calculation; 3) performing a second calculation, in which a digital three-dimensional second model (B) of a prosthesis-base semi-finished product is calculated from the first model (A) of the prosthesis base, wherein volume is added to the three-dimensional model (A) of the prosthesis base at least in some areas; and 4) producing the dental prosthesis-base semi-finished product (6) by means of a rapid prototyping method, wherein, in the rapid prototyping method, a CAM method is used and the digital three-dimensional second model (B) of the prosthesis-base semi-finished product is used as the basis of the CAM method. The invention further relates to a device for implementing such a method and to a prosthesis-base semi-finished product produced by means of such a method.
The invention relates to dental micro applicators comprising a body with a distal end and a proximal end, wherein at the proximal end an application means is provided at least partly with at least one additive, chosen from metals, metal-containing compounds and organometallic compounds, for influencing the polymerisation of dental materials, and to a method for the production thereof and to a kit comprising the applicator and a dental adhesive.
The subject matter of the invention is a dental composition consisting of a pourable ceramic powder of a powder component, comprising at least one dental glass, glass ceramic, metal oxide, or mixed oxide selected from metal oxides, and/or a mixture comprising at least two of said components, as well as a printing dental ink, and a method for manufacturing dental prosthesis shaped bodies.
A superstructure for oral, dental and maxillofacial prostheses includes at least one anchoring dental element and at least one additional dental element, wherein the additional dental element has an internal hollow portion forming a closed cavity inside the same element. With respect to the known technology in the field, the superstructure of the invention offers the advantage of being lighter, more comfortable and less bothersome for the user, thanks to the substantial reduction in weight due to the smaller quantities of material used for producing it.
The invention relates to a method for processing prosthetic teeth for the production of a total prosthesis or a partial prosthesis, with the following steps: At least two prefabricated prosthetic teeth are inserted with the coronal ends into recesses (4) of an elastic mould (2), a clamping device (6) is fitted on the elastic mould (2) and, after the prosthetic teeth have been inserted, the clamping device (6) is used to apply a mechanical pressure to the elastic mould (2), wherein the pressure on the elastic mould (2) exerts a force on the prosthetic teeth and thereby fixes the prosthetic teeth in the elastic mould (2), the prosthetic teeth are positioned and oriented relative to each other in the elastic mould (2) in such a way that the prosthetic teeth have the desired position and the desired orientation relative to each other, the elastic mould (2), with the clamping device (6) and the prosthetic teeth, is secured in a defined position in a retainer of a CAM device for removing material from the prosthetic teeth by a CAM technique, and at least one of the fixed prosthetic teeth has material removed from the base by a CAM technique. The invention also relates to a device (1) for retaining prosthetic teeth in order to carry out such a method, and to a kit for carrying out such a method using such a device.
The invention relates to a prosthesis-base blank (1) for producing a prosthesis base for a dental prosthesis by means of a subtractive CAM method, wherein the prosthesis-base blank (1) is composed of a plastic or a wax, wherein the prosthesis-base blank (1) is preformed and wherein a dental arch (2) or a dental-arch segment is preformed as a material thickening of the prosthesis-base blank (1). The invention further relates to a set comprising at least one such prosthesis-base blank (1). The invention further relates to a method for producing a prosthesis base for producing a total dental prosthesis or at least a partial dental prosthesis by means of a prosthesis-base blank (1) according to one of the proceeding claims, comprising the following steps: fastening the prosthesis-base blank (1) in a CAM device for removing material of the prosthesis-base blank (1) by means of a CAM method and removing material of the prosthesis-base blank (1) by means of the CAM device on the basis of a computed CAD model.
An insert for a dental prosthesis screwed onto an implant, in particular of the type comprising a superstructure (2) and an implant (3) integrated in the bone (4), which are reciprocally joined by means of a screw (5, 25). The insert of the invention consists, in particular, of an element made of a damping material interposed between the coupling surface (6, 7) of the superstructure (2) and implant (3). Thanks to the insert of the invention, a dental prosthesis screwed onto an implant is obtained, which reproduces the natural anchoring state of the tooth to the bone, so that the stress peaks on the superstructure are damped before being discharged onto the implant and consequently also onto the bone. The insert of the invention also offers the advantage of sealing the contact area between the superstructure and the implant, thus preventing dangerous bacterial infiltrations.
The invention relates to a gingival indexing device comprising different, defined red colour regions (red tones) which are assigned a grey colour chart or grey chart, and to a method for recording the gingival situation, in particular for producing a gingival restoration, involving an analysis at least of a region of the gingival situation with regard to the red colour tones thereof, the position of the red colour tones, the colour gradient of the red colour tones, the geometry thereof and/or the morphology thereof, wherein the analysis may take place manually and/or digitally, and gingival information is obtained, in particular in the form of gingival mapping, and optionally producing a virtual or real model of a gingival restoration simulation of the missing gum portion or gingiva portion.
A process for producing a superstructure (5) for dental prostheses, the process comprising the previous creation of a preformed interface (6) and the subsequent construction, by the stratification of a material (11) on the same interface (6), of the anatomical part (2) of said superstructure (5). With respect to known production methods, the process of the invention offers the advantage of allowing a finished superstructure, i.e. complete with an interface whose geometry has the maximum precision required for an effective coupling with the implant, to be obtained directly in the stratification phase.
Method for positioning and working prosthetic teeth (1), having the following method steps: • 1) at least two clamping jaws (4, 6) with peripheral recesses are placed with the peripheral recesses against a prefabricated prosthetic tooth (1) or against prefabricated prosthetic teeth (1), and so, at least in certain regions, the placed clamping jaws (4, 6) enclose the prosthetic tooth (1) or the prosthetic teeth (1) respectively around a middle circumference, wherein, at least in certain regions, the inner surfaces of the recesses positively fit regions of the outer surfaces of the prosthetic tooth (1) or the prosthetic teeth (1), wherein the clamping jaws (4, 6) are placed against the prosthetic tooth (1) or the prosthetic teeth (1) in such a way that the coronal end (3) and the basal end (2) of the prosthetic tooth (1) or the coronal ends (3) and the basal ends (2) of the prosthetic teeth (1) project on both sides of the placed-together clamping jaws (4, 6); and • 2) fastening the clamping jaws (4, 6) to one another.
The present invention relates to a three-dimensional long-term active substance depot (Fig. 1a-k) which in particular is prepared on an individual basis, with a fissure surface and/or cutting edge individual to the patient, as a replica of at least part of a tooth, in particular of an individual molar of the patient, comprising at least one dental material and at least one active substance with a content that is sufficient for a continuous therapeutically effective dose over a period of at least one week, in particular sufficient to ensure a therapeutically active concentration of active substance in the blood of the patient over a prolonged period of several weeks. The invention likewise relates to a pharmaceutically active dental composition and to a pharmaceutically active dental material obtainable therefrom for producing the three-dimensional active substance depot, a method for producing the three-dimensional long-term active substance depot, its use for transmucosal active substance release and for treating chronic diseases. The invention therefore also relates to a method for long-term administration of at least one active substance for transmucosal active substance release for treating chronic diseases such as dementia, diabetes, Alzheimer's disease, Parkinson's disease, depression, cardiovascular disease, osteoporosis, arthritis, gout and rheumatism.
The invention relates to a method for taking an impression for producing a dental prosthesis, in particular a denture, comprising the procedural steps of: A) generating an impression of at least partial regions of the upper jaw and lower jaw of a patient using an at least two-part tray in the oral cavity of the patient, whereby the tray is being inserted into the oral cavity of the patient for this purpose; B) fixing the at least two tray parts to each other or against each other in the oral cavity of the patient; C) followed by determining the position and orientation of the at least two tray parts with respect to each other in the oral cavity of the patient; and D) followed by taking the tray parts out of the oral cavity of the patient. The invention also relates to a tray for taking an impression of at least partial regions of the upper and lower jaw of a patient for implementing said method,comprising at least two tray parts, whereby at least one marking is arranged on the surface of each tray part and enables the determination of the position and orientation of the markings and tray parts with respect to each other, and to a device for intra-oral determination of the orientation and position of at least two tray parts for taking an impression of at least partial regions of the upper and lower jaw of a patient with respect to each other, whereby the device is suitable for implementing said method and the device comprises a computer and a recording facility, in particular an intra-oral scanner or an intra-oral camera, that can be used to determine the position and orientation of the tray parts with respect to each other by means of an imaging method and a computer-based analysis of the images for a known shape of the tray parts, whereby said tray preferably is a separate part of the device and the position and orientation of the tray parts with respect to each other can be determined by means of a computer-based analysis of the images of the known markings on the tray parts.
The invention relates to a particulate glass filler wherein glass particles of 0,2 to 1 μm mean particle size are connected with other particles, the connection being effected by the glass material itself. More precisely particulate glass filler comprising glass particles, wherein the particles contains centrally located macro glass particles and on the outer surface located micro glass particles wherein the macro and micro glass particles are connected by the material of said particles. Further the invention relates to a method for manufacturing the glass particles and the particulate glass filler comprising said glass particles. It also relates to a composite or dental material comprising the above particulate glass filler.
The invention relates to a dental implant system having at least one implant for securing in a jaw bone, a prosthesis on which at least one artificial tooth can be mounted and secured, and at least one screw for securing the prosthesis releasably on the at least one implant, wherein the at least one screw has a thread and an engagement part for turning the screw, the engagement part being arranged at the end of the screw remote from the thread, and the screw having a bearing surface oriented towards the thread, wherein, when the dental implant system is fully assembled, the bearing surface of the at least one screw presses the prosthesis onto the at least one implant, and the prosthesis, the at least one implant and the at least one screw lie with their surfaces flush against one another. The invention also relates to a screw for such a dental implant system, in which the screw is rotationally symmetrical except for the engagement part and the thread, wherein the diameter of the screw increases from the thread to the opposite end, or the diameter of the screw increases from the thread to the opposite end at least in the area of the bearing surface and remains the same in places, such that the screw, except for the engagement part and the thread, is preferably cylindrical with respect to the screw axis or tapers conically in the direction of its thread, wherein the implant has a cylindrical area, or an area opening conically in the direction of the connecting face to the prosthesis, which area separates an internal thread of the implant from the connecting face to the prosthesis, wherein the inner surface of the implant corresponds to the outer surface of the screw, such that both adjoin with their surfaces flush when the screw is screwed fully into the implant. The invention further relates to a method for producing a prosthesis for a dental implant system.
A temporary anchoring device between cylinders and spacers of position keys for dental implants composed of cylinders (1) and spacers (2) j equipped with means suitable for temporarily holding said cylinders (1) and the mentioned spacers (2) in their relative position, corresponding to that of the dental implant, in which said means consist of a first ring (4) destined for being engaged on the body of said cylinder (1), in addition to a second ring (5) which is engaged on a first spacer (2) of the position key and joined to the previous ring (4) by means of a bar (6). Compared to the systems used in the known art, the device of the invention offers the advantage of being pre-assembled on the spacer, by means of a simple and rapid operation effected outside the patient's mouth. The device of the invention is then also fixed to the respective cylinder situated in the oral cavity, with operations equally as rapid and simple, thus obtaining a temporary anchorage which holds the cylinders of the implant and the spacers forming the position key, in the relative correct position.
A superstructure for oral, dental and maxillofacial prostheses, of the type consisting of a bridge with at least one anchoring dental element (2,3) and at least one intermediate dental element (8), wherein said intermediate dental element (8) has an internal emptying of material, suitable for forming a closed cavity (9) inside the same element (8). With respect to the known technology in the field, the superstructure of the invention offers the advantage of being lighter, more comfortable and less bothersome for the user, thanks to the substantial reduction in weight due to the smaller quantities of material used for producing it.
The invention relates to a method for producing a homogenized light quantity distribution with a spatial light modulator, which has a plurality of addressable, tiltable micromirrors arranged in rows and columns, in which the light from a flood light source is projected by an optical system and an illumination pattern of the projected light source is guided over a projection surface, wherein a plurality of pixels increasing in number towards the centre of the image are not illuminated so that homogenization of the light intensity of all pixels illuminated on the projection surface is achieved over a time integral. The invention also relates to a rapid prototyping method in which a liquid, light-curing plastic is illuminated by a method of this kind, is preferably illuminated with UV light, wherein the illumination pattern is projected on the surface of the plastic, and the plastic is cured by the lighting in the illumination pattern.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
The present invention relates to a mounting element (10) for fixing removable tooth prostheses which are anchored by an implant, comprising a lower end (13) for fastening the mounting elements (10) having an implant (21) or abutment; and an upper end for connecting the mounting element having a tooth prosthesis, optionally a friction insert; characterised in that the main body of the mounting element (10) has an outer ring (11).
A method (30) for manufacturing a dental superstructure or part thereof is provided. The method comprises the steps of (i) making (31) a dental imprint from the mouth of a subject; (ii) mounting (32) an analog in the imprint to obtain a working model; (iii) attaching (33) a screw channel directing device (10, 20), comprising a screw channel part (11, 21) and an implant cooperating part (12, 22), said screw channel part (11, 21) being tiltable in relation to the implant cooperating part (12, 22), to the working model; (iv) tilting (34) the screw channel part (11, 21) in relation to the implant cooperating part (12, 22) into a desired angle; (v) shaping a mold creating a master superstructure or part thereof onto the screw channel directing device (10, 20); (vi) forming (37) a mold based on the master superstructure or part thereof; and (vii) casting (38) or CAD/CAM shaping of the dental superstructure or part thereof. Embodiments of screw channel directing devices are also provided.
The invention relates to a dental model for constructing a denture having a plurality of segments of a dental arch of an upper jaw and/or of a dental arch of a lower jaw, wherein the segments are realised by such incisions through the dental arch(es), that they divide the dental arch(es) into segments arranged distally and mesially relative to one another, and wherein the segments have connecting elements and the segments are or can be directly detachably attached to one another by the connecting elements along the dental arch(es). The invention also relates to a method for producing a dental model for constructing a denture, comprising the steps: • three-dimensional recording of the situation in the oral cavity of a patient and storing the digitised information in an electronic drive of a computer • producing a virtual three-dimensional model of at least a portion of the oral cavity of the patient; • dividing the virtual model into virtual segments • supplementing the virtual segments with virtual connecting elements on the sides of the virtual segments, and shaping segments of the dental model with connecting elements on the sides of the segments with the help of the data of the virtual segments.
A position localizer device for oral, dental and maxillofacial prostheses, consisting of a single body with a longitudinal axis (4) and comprising a portion consisting of a body (3) in the form of an irregular polyhedron, on whose upper polygonal side (6) a portion is fixed in the form of a spherical body (2) and on whose lower polygonal side there is a connection element (18) for coupling with the interface of the respective element to be positioned. The polyhedric body (3), the spherical body (2) and the mentioned connection (18) of the device of the invention are positioned coaxial with said axis (4) of the body of the same localizer device (1). With respect to the known art considered above, the localizer of the invention offers the advantage of obtaining a perfect adherence between the surfaces scanned and the surfaces of the device itself and the perfect coupling of the scanned surfaces with the mathematical model present in the database.
The invention relates to a method for producing dentures. According to the invention, provision is made for the dentures to have a base element, which holds at least two tooth blanks, comprising the following steps: producing a negative mould by machining on the basis of a digital image of a tooth situation; shortening by machining a length dimension of the tooth blanks which are preassembled and held in the negative mould from a basal side in order to achieve a tooth line adapted to the tooth situation; connecting the base element and the shortened tooth blanks to form the dentures.
The invention relates to a charging station for a wireless photopolymerization device for curing photopolymerizable dental materials, wherein the photopolymerization device comprises a store for electric current, in particular a battery or a capacitor, and wherein the charging station comprises at least one electrically conductive charging contact, by means of which an electrically conductive connection to an electrically conductive mating charging contact of the photopolymerization device is provided in order to charge the store when the photopolymerization device is connected to the charging station, wherein the electrically conductive charging contact is part of an attachment that is or can be detachably fastened to the charging station, wherein the electrically conductive charging contact is connected in the attachment to at least one second electrically conductive charging contact of the charging station in an electrically conductive manner when the attachment is fastened to the charging station. The invention further relates to a wireless photopolymerization device for curing photopolymerizable dental materials, wherein the photopolymerization device comprises a store for electric current, in particular a battery or a capacitor, and wherein the photopolymerization device comprises at least one electrically conductive charging contact, by means of which an electrically conductive connection to an electrically conductive mating charging contact of a charging station for the photopolymerization device can be established in order to charge the store when the photopolymerization device is connected to the charging station, wherein the electrically conductive charging contact is part of an attachment that is or can be detachably fastened to the photopolymerization device, wherein the electrically conductive charging contact is connected in the attachment to at least one second electrically conductive charging contact in the photopolymerization device in an electrically conductive manner when the attachment is fastened to the photopolymerization device. The invention further relates to an attachment for connecting a wireless photopolymerization device to a charging station, and a photopolymerization apparatus comprising a charging station, a handheld photopolymerization device, and an attachment.
A container (10, 30, 50) is provided for single- or multi-component molding materials. The container has a container body (12, 32, 52) having a constant outer contour in a longitudinal extent of the container (10, 30, 50), a piston (17, 37) movable in the longitudinal direction, and a cover (11, 31) having an outlet opening (13, 33, 53). A volume for a molding material is defined between the piston (17, 37) and the cover (11, 31), the volume being variable in the direction of the longitudinal extent of the container (10, 30, 50). The container distinguishes itself in that the container body (12, 32, 52) is rotatable relative to the outlet opening (13, 33, 53), and the piston (17, 37) thereby pushes out the content of the container (10, 30, 50).
The invention relates to a dental implant comprising an implant adapter and a suprastructure, in which said implant adapter is coronally arched in at least some sections and said suprastructure is apically arched in at least some sections, the apical curvature of the suprastructure being convex and the coronal curvature of the implant adapter being concave, or the apical curvature of the suprastructure being concave and the coronal curvature of the implant adapter being convex, with the concave curvature being more pronounced than the convex curvature. As a result, when the dental implant has been assembled, the suprastructure is connected to said implant adapter by a cutting edge.
The present disclosure provides a dental bridge intermediary structure comprising a superstructure (203) and a reference plate (200), with distance pins (202) connecting the two. A method for producing a dental bridge superstructure (203) is also provided.
The invention relates to a method for producing a three-dimensional model of at least a part of a jaw in order to produce a dental prosthesis, wherein a laboratory implant is arranged in a recess of the model, a cylindrical or conical recess being produced in the model according to the method, the laboratory implant being inserted into the recess in order to position the laboratory implant on the model, wherein the recess is produced with a single or multiple rotational symmetry about the longitudinal axis of the recess, and a laboratory implant is used that has the same rotational symmetry at least in certain areas and thus fits into the recess, or a counter thread mating with a thread on the lab implant is produced in the recess. The invention also relates to a model of a jaw for the production of a dental prosthesis, in particular to the conducting of such a method, the model comprising a recess for insertion of a laboratory implant, the recess being shaped cylindrically or conically and having a single or multiple rotational symmetry along the longitudinal axis, so that a laboratory implant with identical rotational symmetry, at least in certain sections, can be arranged in a rotationally fixed manner in the recess, or a counter-thread, preferably with a stop, is provided in the recess, said counter-thread mating with a thread on the laboratory implant, preferably with a stop, so that the laboratory implant can be arranged in a fixed position in the model. The invention further relates to a laboratory implant for the production of a dental prosthesis, in particular to the conducting of such a method, the laboratory implant comprising an area for insertion into a recess of a jaw model and a head part for mounting the dental prosthesis, the laboratory implant being cylindrical or conical, at least in certain sections, and having a single or multiple rotational symmetry about its longitudinal axis, so that the laboratory implant can be arranged in a rotationally fixed manner in a recess with a matching shape, or comprising an outside thread, preferably an external thread with a stop, so that the laboratory implant can be arranged in a fixed position in a recess having mating internal thread. Finally the invention also relates to a device for producing a model of a jaw for realizing such a method.
The invention relates to a two-part model plate array for producing dentures. The model plate array comprises a model plate (2) having a dental crown model (3) and sliding elements (4), and a model base plate (5) having guides (6). The sliding elements (4) can be inserted into the guides (6) of the model base plate (5).
A61C 11/08 - Dental articulators, i.e. for simulating movement of the temporo-mandibular jointsArticulation forms or mouldings with means to secure dental casts to articulator
48.
MULTI-COMPONENT MIXING SYSTEM HAVING A ROTATABLE CONTAINER AND CONTAINER THEREFOR
The invention relates to a container (10, 30, 50) for single- or multi-component molding materials, comprising a container body (12, 32, 52) having an outer contour that is constant in a longitudinal extension of the container (10, 30, 50), a piston (17, 37) that can be moved in the longitudinal direction, and a cover (11, 31) having an outlet opening (13, 33, 53). A volume for a molding material is defined between the piston (17, 37) and the cover (11, 31), wherein said volume can be changed in the direction of the longitudinal extension of the container (10, 30, 50). A container according to the invention is characterized in that the container body (12, 32, 52) can be rotated relative to the outlet opening (13, 33, 53) and the piston (17, 37) thereby pushes out the content of the container (10, 30, 50).
The invention relates to silicic acids, which are highly dispersive, have a pore diameter of 15-30 nm and an inner pore structure and preferably have a specific surface of > 700 m2/g, wherein said silicic acids can be used to advantageously adjust the usage properties of dental materials.
The invention relates to a method for the automated production of dentures, comprising the following steps: providing a digital data set of the individual prosthesis to be created; digitally separating the model into the dental arch and the gingiva; producing the dental arch from ceramic and plastic by means of milling technology; producing the prosthesis base by generative or material-removal methods from predominantly (meth)acrylate-based plastics, connecting the dental arch and the gingiva by adhesive bonding or joining or a combination of adhesive bonding and joining.
In order to produce a negative mould: of a full or partial dental prosthesis; or of a temporary crown or bridge; or of a permanent crown or bridge, the data of a digitized virtual model that reproduces the jaw configuration is used to create a data record: of the digital dental arrangement of the full or partial dental prosthesis; or of the temporary crown or bridge; or of the permanent crown or bridge. From said data record, a functional model of the full or partial dental prosthesis or of the temporary crown or bridge or of the permanent crown or bridge is created using a rapid manufacturing or a rapid prototyping method. The functional model is embedded in a curable moulding material, from which the negative mould is produced after curing. Such a negative mould can advantageously be used in methods for producing full or partial dental prostheses or temporary crowns or bridges or permanent crowns or bridges.
The invention relates to a dental material provided with at least one antimicrobial agent applied to an inorganic particle or to organic polymer pearls, wherein said antimicrobial agent is not covalently attached to the particles or the polymer pearls. As a result, the formation of plaque deposits on the dental material is prevented.
The invention relates to a measuring device of flexible material for the determination of parameters for the production of dental prostheses which combines different functions, including protractor, spacing template, ruler and an option of utilizing a compass-formed modulus shear measuring module to facilitate shearing.
In order to achieve an anti-plaque effect, dental material has at least one anti-microbial active substance enclosed in capsules made of encapsulating material providing solubility for dental monomers.
Milling blocks for the production of partial or total prostheses according to the CAD/CAM method exhibit pink and tooth colored, preferably layered components connected to one another. The tooth colored components can be made from multiple layers of varying transparency and differing chroma. Using a numerically controlled milling system, whole upper or lower jaw total prostheses can be produced from a single milling block.
The aim of the invention is the improvement of an arrangement for the imaging of surface structures of three-dimensional objects, comprising a device for the optical recording of the surface of at least a partial region of the three-dimensional object from different positions, such that the imaging of the object can be carried out with comparatively little complexity with high reproducible accuracy. According to the invention, the arrangement thus comprises a selection circuit (9), for the selection of a first image section (10) and a subsequent image module (11), in which at least one further image section (12) is digitally recorded. A comparator unit (16) serves to compare the digital patterns (13, 14) contained in the first (10) and the at least one further image section (12) and permits the generation of comparison information on the degree of matching of the digital patterns (13, 14), provided to an image processing unit (19), for determination of spatial parameters and for the aggregation of the image section (10, 12) of the object to give an overall image.
A process by means of which the colonization by plaque on dental materials can be permanently prevented or delayed without the product properties of the dental material being negatively influenced. The process involves equipping the dental material with anti-plaque substance, namely at least one molecularly dispersely distributed octenidine salt or dequalinium salt. Also disclosed is a dental material so equipped.
The invention relates to the use of erythropoietin (EPO), particularly EPO in a pharmaceutical preparation on a polymer basis that stabilizes the active substance for the treatment of traumatized skin, particularly for wound healing with mechanical or pathological injuries or with burns. The invention particularly also relates to special viscous or gel-like formulations, particularly on the basis of polysaccharides, preferably cellulose derivatives, which comprise EPO and can stabilize it and can slowly and steadily deliver it to the wound.
The invention relates to a 2-component addition cross-linking silicon putty material comprising 21-40 weight % organopolysiloxane having at least two unsaturated groups per molecule, having a viscosity of 500 - 50,000 mPas, 2-12 weight % of at least one organohydrogen polysiloxane having at least 2 SiH groups in the molecule, 6-15 weight % of at least one paraffin oil, 30-75 weight % of at least one filler, 0.00001 - 0.04 weight % of a hydrosilation catalyst containing Pt, calculated as Pt, possibly other additives, and the use thereof.
The present invention relates to compositions for making a negative mould which are based on polyether derivatives, a process for producing them and their use.
The invention relates to a dropper system for use in the dental industry. Said system comprises a liquid which is provided in the from of drops in a container which comprises an opaque plastic dropper insert which can be closed in an evaporation tight manner and a cavity which is provided in the dropper insert (1) for the transportation of a fluid. Said cavity comprises several tubular-shaped sections (2) and a funnel-shaped outlet. The tubular-shaped section is adjacent to the funnel and is embodied as a tapering or aperature between the funnel-shaped section and an additional tubular-shaped section. The funnel is arranged in a column-shaped dropper tube (3). On the outer side of the dropper insert, a collecting channel (9) is arranged between the outer wall, which defines the cavity, and the part of the dropper insert which covers the neck of the bottle.
B65D 47/18 - Closures with discharging devices other than pumps with pouring spouts or tubesClosures with discharging devices other than pumps with discharge nozzles or passages for discharging dropsDroppers
Temperature and/or irradiation and/or polymerization indicators comprise at least one 1,3-dipole and at least one dipolarophile, the dipole preferably being an ylide from the group of azomethines (sydnones), azomethinylides (munchnones), carbonylylides (isomunchnones), thiocarbonylylides (thioisomunchnones), or 1,3-dithiolylium-4-olates.
the shrinkage force (measured according to the photoelastic method; Dental Materials (2004) 20, 313-321) may be reduced to <3.5 MPa (measured 24 hours after polymerization).
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