Abstract: A tooth implant system has an upper abutment, a lower abutment, a crown, and an elastic member securely placed between the upper abutment and the lower abutment providing softer and elastic, yet resilient, cushion between the upper abutment and the lower abutment. To better affix the elastic member within the tooth implant system, a ring lock may be used, securely placed in a ring-lock groove located on the lower abutment section. An insertion of a screw deeper into the lower abutment receptacle pushes the ring lock-groove and the ring lock outwardly to force the elastic member against an inner chamber wall of the upper abutment and into the abutment groove to better securely affix the elastic member.

Abstract: Method for producing a mockup of a patient's dental cosmetic restoration, characterized in that it comprises a step (E4) of forming a file of digital data representing the dental mockup artificially presenting the restoration intended to be placed in the mouth and worn temporarily over at least part of the patient's dentition, and a step (E5) of fabricating the mockup directly from the file of digital data produced.

Abstract: The present invention relates to a method of dental implant treatment planning, a device and a recording medium therefore. The device for dental implant treatment planning according to the present invention can move or rotate the grouped objects together in 2D or 3D model about teeth arrangement for implant treatment planning with grouping function of the implant objects. So, it decreases complexity of manipulation of the implant objects, provides users with convenience to easily modify position or size of the implant objects, and improves the accuracy of the modification.

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

Abstract: A dental prosthetic arrangement and a dental prosthetic system include a combination of a lower part assigned to a jaw implant and an upper part assigned to a prosthesis body in a connection section, wherein in particular two bearing faces are produced in the connection section when in the connected state, the bearing faces being cylindrical, preferably circular-cylindrical in relation to a center axis and being spaced apart from each other in the axial direction. The axial extent of the cylindrical bearing faces is advantageously small compared to the axial extent of the connection section. The two cylindrical bearing faces are preferably situated in axially opposite end regions of the connection section and are connected to each other by approximately conical wall faces of a cut-out in the upper part and a projection of the lower part that projects into the latter.

Abstract: The invention is directed to a composition comprising a) compound (A) being characterized by at least the following features: comprising a backbone unit (U) comprising a tricylclic hydrocarbon moiety, two spacer units (S) each comprising a hydrocarbon chain (G) being directly connected to the backbone unit (U) via an urethane moiety, and at least two reactive groups (M) being connected to the hydrocarbon chain (G) via an ester linkage, with (G) being a non-branched hydrocarbon chain having a length of at least 3 carbon atoms, (G) not comprising ether moieties, and (M) being selected from acroyl and methacroyl, b) initiator (B) and c) optionally filler (C), the composition being a dental composition.

Abstract: Among various methods, systems, and apparatuses, a number of methods are provided for forming a 3D conformance model of a particular portion of a subject's anatomy using 3D digitized imaging data and a rapid prototyping technique. One such a method includes distinguishing at least one particular structural feature associated with the exterior of the particular portion from at least one particular structural feature associated with the interior of the particular portion. Such a method can include using the conformance model to test suitability of an appliance to participate in performing an intended function that includes penetrating the interior of the particular portion through the exterior of the particular portion.

Abstract: The present invention provides a spring clip mountable to a withdrawable artificial tooth and a removable artificial tooth that is assembled through the spring clip. The spring clip mounted to the withdrawable artificial tooth can clamp a projection block formed on a corresponding internal crown or a neighboring tooth to allow the external crown to be removed by direct application of force to the external crown thereby allowing a user to easily remove the artificial tooth (the external crown) for cleaning.

Abstract: The present invention provides a spring clip mountable to a withdrawable artificial tooth and a removable artificial tooth that is assembled through the spring clip. The spring clip mounted to the withdrawable artificial tooth can clamp a projection block formed on a corresponding internal crown or a neighboring tooth to allow the external crown to be removed by direct application of force to the external crown thereby allowing a user to easily remove the artificial tooth (the external crown) for cleaning.

Abstract: A method for making a dental restoration comprises fabricating a dental workpiece from a pre-sintered dental ceramic material; sintering the dental workpiece defining a sintered dental workpiece; applying a demineralization-inhibiting material inside the pocket or hole of the workpiece; and hardening the demineralization-inhibiting material defining a hardened demineralization-inhibiting portion with an exposed surface exposed in an opening in the sintered dental workpiece.

Abstract: Presently described are curable dental compositions comprising a polymerizable ionic liquid. The polymerizable ionic liquid comprises one or more ethylenically unsaturated (e.g. free-radically polymerizable) groups. Various embodiments of curable dental compositions are described. In some embodiments, the polymerizable ionic liquid is a monofunctional polymerizable ionic liquid comprising an ethylenically unsaturated group. In other embodiments, the polymerizable ionic liquid is a multifunctional polymerizable ionic liquid comprising at least two ethylenically unsaturated groups. The curable dental compositions describe herein can be utilized as dental primers, dental adhesives, dental sealants, and dental composites. In many embodiments, the curable dental compositions further comprise an initiator such as a photoinitiator.

Abstract: An assortment of manufactured teeth are disclosed which are fabricated according to their function and color. The outer dimensions of the teeth, especially in the marginal area, are larger than those of a prepared tooth. The teeth are preferably made of plastic, ceramic or hybrid materials. Adjacent teeth can be interconnected in the manner of a bridge. A method for preparing manufactured teeth is also disclosed in which the fabricated tooth is clamped in a device which virtually correlates the same to the situation of the prepared tooth. The inner fit to the prepared teeth is produced by milling out the lumen. The outer fit is produced by milling down until the preparation limit is reached. A clearance fit with a marginal range of less than 100 ?m is preferably provided. A clearance fit with a marginal range of less than 200 ?m is preferably provided in the inner area.

Abstract: A set or assembly for producing at least one temporary crown or bridge material has a carrier for accommodating a crown and bridge material and a crown and bridge material in an amount that is at least sufficient for the production of a tooth crown. The crown and bridge material is a light-curing and, in particular, flowable single-component material, and the carrier that can be adapted to the tooth situation is transparent or translucent. In another aspect, a method for producing a temporary tooth crown or bridge and a temporary tooth crown or bridge produced by the method are also provided.

Abstract: Herein are provided methods, systems, computer-readable media, techniques and processes for adjusting dental prostheses based on soft tissue. These include allowing an operator to define the surface of a dental prosthesis, such as an abutment, that is proximal to the patient's gum relative to a 3D scan of the patient's gums. The operator can define the offset of that surface as well as the limits of that surface.

Abstract: A system and method of manufacturing prefabricated dental veneers in a variety of sizes, shapes, and colors for a more economically feasible application of high-quality dental veneers, and a related process for selecting an appropriate veneer for a particular patient's tooth or teeth for application on the same day as the initial meeting. The system includes a storage kit which stores a variety of prefabricated veneers in different sizes, shapes, and colors. The kit can be refilled by ordering another set of prefabricated veneers when a particular set of a particular size, shape, or color is affixed to a patient's teeth. The kit also includes refining tools which allow for a degree of customization in the particular prefabricated veneer chosen for a particular patient.

Abstract: This invention relates to methods and devices for restoring teeth using fixed restorations. In particular, the invention provides a system, kit, and devices for the management of interproximal areas for traditional cementation and/or bonding of dental crowns, onlays, inlays, veneers and bridges. In the method, a barrier is positioned in contact with the tooth being restored and an adjacent tooth to cover a section of the tooth being restored and to create separation of the tooth being restored and the adjacent tooth. Cement is applied to the first mating surface of the fixed restoration and/or to the second mating surface of the tooth, and the first mating surface of the fixed restoration and the second mating surface of the tooth are positioned adjacent each other to seat the fixed restoration on the tooth. The barrier covers a section of the tooth being restored to prevent cement from bonding to the section of the tooth. This eliminates the need to remove hardened cement from this section of the tooth.

Abstract: Certain embodiments relate to a method of forming an individualized dental product ready for application including at least one tooth veneer, which is of a ceramic material. The method includes milling a first side of a ceramic substrate, filling up with a support material against the first side of the substrate, and milling the second side of the substrate until the veneer is plate-like and provided with a bevelled region over a distance (s) taken from an edge and 0.3 mm to 3 mm towards a middle portion of the veneer. The veneer thickness varies from 0 to a plate thickness (d*enlargement factor) over the distance (s). The method further includes sintering the dental product and removing the support material. Certain embodiments also relate to a product resulting from the method.

Abstract: The subject of the invention is automation of process and apparatus for computer-controlled preparation of teeth, during said process preparing the tooth-stump(s) holding the prosthetic piece as pillar(s), takes place on basis of a digital plan of three dimensions, with a combined laser head of small size, matching the size of the oral cavity, moving along a trajectory fixed to a frame of face-bow controlled by a computer, preparing teeth-stump(s) before placing into the mouth the prosthetic piece produced by CAD/CAM technique.

Abstract: An assortment of manufactured teeth are disclosed which are fabricated according to their function and color. The outer dimensions of the teeth, especially in the marginal area, are larger than those of a prepared tooth. The teeth are preferably made of plastic, ceramic or hybrid materials. Adjacent teeth can be interconnected in the manner of a bridge. A method for preparing manufactured teeth is also disclosed in which the fabricated tooth is clamped in a device which virtually correlates the same to the situation of the prepared tooth. The inner fit to the prepared teeth is produced by milling out the lumen. The outer fit is produced by milling down until the preparation limit is reached. A clearance fit with a marginal range of less than 100 ?m is preferably provided. A clearance fit with a marginal range of less than 200 ?m is preferably provided in the inner area.

Abstract: The present disclosure relates to a kit of parts comprising part A and part B, part A comprising a polymerizable component having an acid group in the molecule, an initiator, part B comprising an activator, and a film former with a molecular weight of at least 1000. The present disclosure also relates to a composition obtainable by mixing the components contained in the kit of parts and to a process for producing the kit of parts comprising the steps of bringing the components contained in part B of the kit in contact with a surface, drying the surface to form a film.

Abstract: A dental veneer made from a composite comprising at least one organic binder, preferably with methacrylate, and inorganic solid particles as fillers. Methods for manufacturing the dental veneer include curing the composite with heat and light under pressure followed by laser treating the facial surface of the veneer to form a smoother facial surface. Filler particles at the facial surface of the veneer can be melted and/or coalesced together to form a continuous glass surface, which is more natural looking and better resembles natural tooth material as compared to ceramic veneers or other composited veneers lacking surface treatment.

Abstract: A connection device for connecting a prosthesis structure with an implant structure comprises a holding shell and a retention insert. The retention insert comprises an end side and a substantially ring-shaped retention rim projecting therefrom. The holding shell comprises an end side and a substantially ring-shaped holding rim projecting therefrom. The holding rim and the end side of the holding shell form a retainer in which the retention insert can be arranged such that an outer surface of the retention rim is adjacent to an inner surface of the holding rim. Moreover, the outer surface of the retention rim is at least partly spaced from and adjacent to the inner surface of the holding rim when the retention insert is arranged in the retainer of the holding shell and when essentially no radial forces are acting on the holding rim and on the retention rim.

Abstract: The invention is directed to methods for the preparation of a long-lasting dental restoration, a kit for the preparation of a long-lasting dental restoration comprising one or more containers containing: a first polymerizable compound; a second polymerizable compound; a curing agent for a first polymerization process; a curing agent for a second polymerization process; an inorganic filler; and a pigment; and optionally containing instructions for use thereof. The invention is further directed to a long-lasting dental restoration comprising: a polymeric matrix comprising at least two polymeric systems; an inorganic filler; and a pigment, wherein said long lasting dental restoration is formed by at least two curing processes of said polymeric systems, and to methods for the preparation of a dental restoration, wherein said dental restoration is either fully or partially structured chair-side or it is fully structured in a dental laboratory.

Abstract: A radically curable polyurethane composite for dental restorations, including provisional restorations, includes polyurethane dimethacrylate prepolymers that have at least one flexible unit within a polyurethane dimethacrylate backbone, and one or more dimethacrylate monomers. Composite materials made with polyurethane dimethacrylate prepolymers of the invention exhibit superior and optimal properties of flexural strength and deflection-at-break relative to conventional dental resin composites. Composite materials of the invention also provide improved melt-resistance in response to the heat of grinding or finishing, thereby improving the fit of restorations made from the composite and preserving the finishing instruments. Methods of treating a tooth using the radically curable polyurethane composite and methods of making the polyurethane dimethacrylate prepolymers with flexible units is also provided. A kit including the radically curable polyurethane composite is also described.

Abstract: A method of preparing a target hard body tissue, such as osseous or dental tissue, to receive an implant component including; positioning an active electrode in proximity to a target tissue and proximate an electrically conductive fluid, followed by applying a high frequency voltage between the active electrode and a return electrode, the high frequency voltage sufficient to form a plasma. This plasma modifies at least a portion of the target tissue. An implant component may then be placed adjacent at least a portion of the modified target tissue.

Abstract: The present invention relates to a dental firing furnace having a firing space and at least one carrier for dental material, in particular a muffle, which can be loaded into the firing space, and, in particular, a pressing device for pressing a ceramic blank inserted in the muffle, at least one physical variable of the firing space and/or of the carrier and/or of the muffle and/or of the ceramic blank being detected. A processing program of the dental furnace (10) that can be set is based on the detected physical variable.

Abstract: A process to make/seat a permanent crown in only one patient visit, without the need for a temporary crown, after a digital scan or other impression has been taken prior during a dental cleaning appointment or status check up. The dental information is filed and can be used whenever the patient needs a dental restoration to be made. The impression information will have previously been forwarded to a dental laboratory where a shell-crown can be made that is a perfect match to the outer contour of the existing tooth. Needed improvements/corrections can be made with the use of digital software. Also the margins can be determined and corrected, even in the inter-proximal spaces. Now the laboratory is able to manufacture and provide a finished shell-crown in time for the following doctor appointment of this patient.

Abstract: Apparatuses and methods for providing crowns and bridges is disclosed. The apparatuses include provisional preforms which can have cavities, windows and slits that enable material and linear members to extend through for engagement with adjacent teeth or other preforms. The methods also include ways in which to create crowns and bridges using the preforms.

Abstract: A composite material and method of making and using the same is described. In particular a dental (and preferably photocurable) composite material, and the use of a composite material according to the invention as a dental material and a method for preparation of a composite material according to the invention. Also disclosed are novel radically polymerizable monomers comprising at least one polyalicyclic structure element and certain ethylenic structure elements, which are particularly suitable for use in a composite material according to the invention.

Abstract: A radically curable polyurethane composite for dental restorations, including provisional restorations, includes polyurethane dimethacrylate prepolymers that have at least one flexible unit within a polyurethane dimethacrylate backbone, and one or more dimethacrylate monomers. Composite materials made with polyurethane dimethacrylate prepolymers of the invention exhibit superior and optimal properties of flexural strength and deflection-at-break relative to conventional dental resin composites. Composite materials of the invention also provide improved melt-resistance in response to the heat of grinding or finishing, thereby improving the fit of restorations made from the composite and preserving the finishing instruments. Methods of treating a tooth using the radically curable polyurethane composite and methods of making the polyurethane dimethacrylate prepolymers with flexible units is also provided. A kit including the radically curable polyurethane composite is also described.

Abstract: Compositions and methods useful in restorative dentistry are disclosed. Compositions of the present invention include a peptide, and a polymer matrix. The peptide is one capable of reacting with a source of mineralizing ions to initiate deposition of hydroxyapatite crystals within the polymer matrix. Compositions of the present invention are uniquely capable of sealing a junction between a dental restorative material and adjacent native tooth tissue.

Abstract: A method for producing a tooth stump structure that is to be anchored in a root canal comprises the following steps: flexible needles are introduced one after the other into a recess in the form of a root canal or into an exposed cavity; the length of the protruding ends of the needles is adjusted to the form of a core of the stump structure, the core is then modelled from a semi-liquid, polymerizable composition and subsequently hardened; and an outer jacket of a crown is applied to the core. The tooth stump structure produced by said method is formed by a structural core made of a hardened composition, wherein individual flexible needles are anchored in said core and protrude therefrom, a cross section of the needles being circular, elliptical or polygonal and their diameter ranging from 0.1 to 0.8 mm. The protruding parts of the needles occupy a space that corresponds essentially to the space of the root canal or the cavity.

Abstract: A dental adhesive composition comprising (i) at least one non-acidic polymerizable monomer having at least one ethylenically unsaturated group, (ii) optionally one or more acidic compounds, (iii) at least one photoinitiator, (iv) at least one solvent, and (v) about 0-40% by weight of one or more fillers; wherein the weight ratio of non-acidic polymerizable monomers/acidic compounds in the adhesive composition is more than about 4.5; the viscosity of the adhesive composition is less than about 350 centipoise (cP) at 25° C.; and the adhesive composition excluding solvent and filler has an acid number of less than about 0.75 mmol NaOH/g. The dental adhesive composition is used with a dental primer composition, which may be provided together in a kit.

Abstract: A composition, containing a carrier medium and particles based on a metal compound with a weight-average particle diameter of 1 nm to 10 ?m is useful to clean metal or ceramic surfaces which are part of a dental restoration or of an implant abutment.

Abstract: The described embodiments relate to a transport prosthesis and a distraction device, which is surgically implanted against a bone, for the purpose of growing new bone through the process of distraction. The transport prosthesis is designed to be affixed to a patient's jaw to support the distraction device. The distraction device comprises a screw mechanism that attaches to a threaded post, which extends through tissue from an onlay plate that is surgically placed on the alveolar bone. After a brief, latent period, the screw mechanism is then activated daily until the desired amount of new bone growth is achieved.

Abstract: The present invention relates to dental crowns for use in restoring a prepared tooth wherein the dental crown comprises a universally sized crown shell and crown matrix to enable the sizing and fitting of the dental crown to the patient in a single sitting and without an impression or laboratory procedure.

Abstract: A method for preparing a dental prosthesis, the method includes: selecting a tooth matrix out of a group of tooth matrices that differ from each other, wherein each tooth matrix comprises an inner cavity; wherein a tooth matrix is has an appearance of a tooth; and attaching at least a wall of the inner cavity of the tooth matrix to an intermediate element that is connected to the prosthesis core, remaining tooth structure or to the implant.

Abstract: A dental tone match checking material is provided that makes possible the elaboration of better esthetics than in the prior art. The present invention is a dental tone match checking material and relates to a dental tone match checking material, wherein the difference (n1?n0) between the refractive index n1 of this material and the refractive index no of the cured product from the dental cement that is checked with the dental tone match checking material is in the range from ?0.040 to +0.020.

Abstract: A solid dental crown and methods of using the solid dental crown are disclosed. The solid dental crown includes, a self-supporting solid hardenable preformed dental crown having an external crown shape defined by an external crown surface. The external crown surface defines a crown volume that is substantially filled with a hardenable composition. The hardenable composition has sufficient malleability so that the solid preformed dental crown can be pressed onto a prepared tooth surface to form a recess in the solid preformed dental crown defined by a recess surface that is complimentary to the prepared tooth surface.

Abstract: A method and device for marking a natural tooth/bridge, crown or any dental restoration interface to mark high spots on said bridge or crown to be removed during the fitting process using a fiber or filament strand impregnated or otherwise treated with a visual indicating marker material. The marking device may include the use of handheld tool that includes at least one end having a wishbone shaped support for attaching the fiber or filament strand impregnated with the marker material between the wishbone support or having a tool having both ends with wishbone supports, both ends for supporting one or more filaments or strands of material that includes visual markers.

Abstract: Method for arranging a bridge (16) in a set of teeth. The bridge (16) comprises at least two crowns (17,18) placed fixedly therein. The bridge (16) is provided with cavities for receiving therein in at least practically fitting manner at least two mounting bases (14,15) which extend from a jaw. The bridge (16) is arranged with the cavities over the at least two mounting bases (14,15). The bridge (16) is fixed onto the at least two mounting bases (14,15). Both a translating movement and a rotating movement are performed with the bridge (16) during placing thereof over the at least two mounting bases (14,15).

Abstract: A temporary crown, and variants thereof, including temporary bite caps and temporary facings, comprised of a shaped provisional (crown forms, onlays, veneers and variants thereof) and a resin filler; and a kit of provisionals, resin and auxiliary materials. The provisional has at least a partial bite layer that is integral with two opposing neighbor walls, a lingual wall and a buccal wall which, together, define a cavity to accept a tooth stub, the resin filler and optionally, a temporary adhesive. The resin filler is initially plastic and fills a void between the provisional and the tooth stub. The provisional and resin filler are selected for compatibility and cooperative curability such that following a suitable curing step, the inner layer of the provisional and the resin filler are substantially bound to and integral with one another. The provisional may have apertures through the bite layer and slits through the neighbor walls.

Abstract: The invention relates to a method and silicone product for shaping a fibre product used in dentistry to reinforce a prosthetic appliance or a similar structure under construction to conform to the final location. The fibre product containing fibres and curable material is pressed by means of silicone material against the final location or a model thereof followed by curing the curable material present in the fibre product. The invention is characterized in that the silicone material is a polymerised, elastic and soft silicone material that has been shaped to a piece (10,11) corresponding to the size and shape of the fibre product to be shaped, and that when pressed, the silicone material adopts the shape of the final location or the model thereof.

Abstract: Dental bonding compositions and methods for promoting adhesion of an amalgam-based restorative material to a dental substrate. The inventive compositions include one or more polymerizable resins that are able to adhere to a dental substrate when at least partially polymerized, one or more polymerization photoinitiators in an amount so as to result in partial polymerization of the resin when the compositions are irradiated with radiant energy, and one or more chemical initiators (e.g., benzoyl peroxide) that cause further polymerization of the resin when the composition is contacted with an amalgam restorative. A bonding composition applied to a dental substrate and irradiated with radiant energy is more polymerized in a region adjacent to the dental substrate, while a less polymerized inhibition layer forms in the region of the surface. Packing an uncured amalgam into the dental preparation mechanically disrupts the inhibition layer so as to form peaks, troughs and other irregularities.

Abstract: Dental materials containing monomers and/or prepolymers can be subjected to a polymer-forming reaction. The dental materials comprise at least one initiating system and optionally comprise fillers, colorants, flow modifiers, stabilizers, ion-releasing substances as well as compounds which increase X-ray capacity or other modifiers. The dental materials are characterized in that the initiating system is proportioned such that the dental materials are sufficiently capable of flowing for at least 10 seconds after exposure to oxygen, whereupon they subsequently harden into a solid material.

Abstract: Chemically bound ceramic system, the binder phase of which essentially consisting of a cement based system, which material comprises one or more expansion compensating additives adapted to give the material dimension stable long time properties.

Abstract: The invention relates to urethane prepolymers, obtainable by reaction of:

Abstract: A dental prosthetic device, such as a crown or a bridge, which includes a ceramic core that is effectively joined by “cementing” to the stump in a tooth preparation, and a polyceramic outer jacket which is effectively joined by “bonding” to the core.

Abstract: A set of fiber-polycarbonate shells for making bicuspid and molar crowns are formed with hourglass shaped occlusal profiles. Mesio-distal sidewalls of the shells have a concave shape matching the concavity of the occlusal profile. The shells are sized to fit loosely between adjacent teeth and relative to opposed teeth. The concavity of the mesio-distal sides and the occlusal surface of each shell allows a good fit between the shell and the convex sides of adjacent teeth. A good fit provides a substantially uniform-width proximal gap between mesio-distal sidewalls of the shell and the adjacent teeth. Each shell further has small mesio-distal windows in the mesio-distal sidewalls. The uniform-width gap and the mesio-distal windows control mesio-distal resin flow to adjacent teeth.

Abstract: In the method for manufacturing a dental replacement a dental support structure is provide that has a labial and a buccal side. A fired, pre-shaped ceramic part is placed onto the labial or the buccal side and at least partially embedded in a ceramic paste. Subsequently, the thus assembled dental replacement is fired.