Abstract: A method of fabricating a dental prosthesis, the method comprising the following steps: a) preparing a paste by mixing a particulate filler and a resin suitable for forming a binder phase by hardening; b) hardening the paste prepared in step a), optionally after shaping it, so as to form a solid composite mass; c) optionally cutting the solid composite mass so as to form at least one composite block; and d) optionally machining the composite block so as to form a dental prosthesis; in which method, in step b) the hardening is performed at a pressure greater than 500 bar, and the pressure is returned to atmospheric pressure once all of the resin has hardened.

Abstract: A method of making a multilayer all-ceramic dental appliance. A first article can be formed of a first material based on a first digital surface representation having a desired outer shape of the dental appliance. A portion of the first article can be removed to form an outer layer comprising a cavity dimensioned to accommodate an inner layer. A second article can be formed by filling the cavity of the first article with a second material. The second article can be further processed, as desired. For example, a desired inner shape can be formed in the second article. Such a desired inner shape can be based on a second digital surface representation of a dental object configured to receive the dental appliance. At least one of the first article, the outer layer, and the second article can be fired, for example, while still being coupled to a support.

Abstract: Lithium silicate glass ceramics and glasses are described which can advantageously be applied to zirconium oxide ceramics in particular by pressing-on in the viscous state and form a solid bond with these.

Abstract: The present disclosure is directed, inter alia, to a system that comprises a rapid prototyping device and a material cartridge. The rapid prototyping device comprises a chamber for building up the object. The cartridge comprises a body into which a channel extends. A support is adapted to be movably arranged within the channel. The cartridge is adapted to be removably placed in the rapid prototyping device, and the rapid prototyping device can move the support of the cartridge. In one embodiment, the system helps minimizing costs in the manufacturing of dental restorations by rapid prototyping techniques.

Abstract: The present invention provides a method that uses digital data, such as that obtained from an intraoral scanner, to fabricate a wide range of customized laboratory appliances. The digital data is used to form a negative mold, which is in turn used to make a physical dental model. The negative mold is configured such that it can be flexed, stretched, fractured or disassembled to release the physical dental model. The physical dental model is then used for fabricating an orthodontic laboratory appliance.

Abstract: The invention concerns a process for producing products of individual geometry, in particular dental prostheses or dental auxiliary parts, comprising the steps of producing a plurality of products on the surface of a substrate plate by means of selective hardening, in particular by means of selective sintering or melting, in which the material is applied in successive layers, after each layer application one or more predetermined regions of the applied layer is selectively hardened by means of an energy-rich radiation and connected to one or more regions of the subjacent layer, wherein the predetermined regions are predetermined on the basis of a cross-sectional geometry of the product in the respective layer. According to the invention the successive layers are applied in layer planes oriented inclinedly relative to the surface of the substrate plate. The invention further concerns an apparatus for carrying out such a process.

Abstract: A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition including increasing amounts of yttria through a thickness of the green body. The green body is substantially white with a substantially consistent optical characteristic of chroma across the thickness, and is subsequently millable and sinterable to form the dental prosthesis with an optical characteristic of decreasing chroma through a thickness of the dental prosthesis.

Abstract: A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition including increasing amounts of yttria through a thickness of the green body. The green body is substantially opaque with a substantially consistent optical characteristic of non-translucency with respect to visible light across the thickness, and is subsequently millable and sinterable to form the dental prosthesis with an optical characteristic of increasing translucency through a thickness of the dental prosthesis.

Abstract: In one aspect the present disclosure relates to a process for producing a dental article comprising at least two parts, Part A (e.g. coping) and Part B (e.g. veneer), Part A and Part B each having a 3-dim. structure and an outer and an inner surface, the outer surface of Part A having a shape which essentially corresponds to the shape of the inner surface of Part B, Part B comprising a material with a porous section and being produced with the aid of a rapid-prototyping technique, the process comprising a first heating step, wherein Part A is serving as support structure for Part B during said heating step.

Abstract: A bio-facilitation mouthpiece correlates a custom made mouthpiece with nervous system channeling to facilitate optimal physiologic activity. The mouthpiece may be a single, unitary part made from a flexible, resilient material, and the mouthpiece includes a base member, and a right and left flange member coupled to the base member. The base member is adapted to receive portions of a user's upper and lower teeth, and the base member includes an elongated right lateral engagement portion, an elongated left lateral engagement portion, and an arch-shaped forward portion disposed between the right and left lateral engagement portions. The base member additionally includes a skirt portion downwardly extending from the forward portion and the right and left lateral engagement portions.

Abstract: A procedure for dimensionally accurate sintering of a shaped piece manufactured from a blank of porous ceramic material, in which during the sintering, the shaped piece remains connected via at least one first connection like a rib, with a support that is manufactured from the blank. To ensure with simple procedural steps and simple design measures that the geometry does not change during sintering, the invention provides that the support is manufactured as a section of the blank that at least in sections surrounds the shaped piece by materials removal processing from the blank, and after the manufacture, the support, for one, is connected via the at least one first connection with the shaped piece, and for another, via at least one second connection with the residual blank that in sections is separated from the support.

Abstract: A method and apparatus for the concurrent treatment of multiple oral diseases and defects while promoting general oral hygiene utilizing direct current electricity. Electrodes are used to deliver a direct current to the gingival tissues of a mouth in order to achieve a number of therapeutic, prophylactic, and regenerative benefits. These benefits include killing oral microbes, increasing oral vasodilation, reducing oral biofilm, improving oral blood circulation, reversing oral bone resorption, promoting oral osteogenesis, treating gum recession, and fostering gingival regeneration. Other benefits include the treatment of gingivitis, periodontitis, and oral malodor, and other systemic diseases correlated with oral pathogens.

Abstract: Embodiments provide a dual action gyratory thermoforming press. The dual action gyratory thermoforming press can include a multiposition gyratory head. The multiposition gyratory head can include multiple forming vessels that can include a mold platform. The multiposition gyratory head can also be connected to a bottom platform. The dual action gyratory thermoforming press can be brought into configuration for forming by rotating the multiposition gyratory head such that a forming vessel is in a forming position, displacing the bottom platform to bring the multiposition gyratory head into a forming position, and displacing the mold platform into a forming position.

Abstract: An investment composition comprising a reducing agent containing carbon.

Abstract: Described are devices, methods, inserts, and systems useful in endodontic treatments, involving, for example, a shaped regenerative endodontic insert comprising platelet-fibrin matrix.

Abstract: This disclosure relates to oral devices, and more particularly, to oral devices having natural gum materials therein. The oral devices are operable to dispense substances in an oral cavity while carrying out conventional functionalities. The oral device may include a mold having a shape of a conventional oral device. The mold has at least one component, comprising a natural gum based material, which operates within an oral cavity.

Abstract: The present disclosure is directed to methods of making a dental restoration comprising making a framework or framework precursor from a ceramic material, making a facing precursor from a glass ceramic material, providing a dental restoration precursor from the framework precursor and the facing precursor, and removing part of the dental restoration precursor to form the dental restoration.

Abstract: An intraoral orthosis comprising a first shell and a second shell, said shells being connected together by an adjustable connection device, said adjustable connection device comprising two notched tabs that are arranged respectively on either side of one of said shells, each notched tab co-operating in adjustable manner with a respective adjustment housing, arranged correspondingly on either side of the other of said shells, each notched tab having adjustment teeth to adjust the position of the shells one relative to the other, and locking housings to lock said position, said locking housings being oriented transversally relative to said adjustment teeth.

Abstract: Herein is provide a dental implant for preventing elution of metal when the dental implant is applied within an oral cavity, and for preventing the occurrence of mismatching (bumpy occlusion or the like) when the dental implant is fixed in place. Also provided is a method for manufacturing the dental implant. The abutment manufacturing steps include a ceramic molded body production step for molding a ceramic molded body composition to obtain a ceramic molded body, an assembling step for assembling a titanium member and the ceramic molded body together to obtain an assembled body, a degreasing step for degreasing the assembled body so that the ceramic molded body is transformed into a ceramic degreased body, and a sintering step for sintering the assembled body to transform the ceramic degreased body into a ceramic member so that the ceramic member is firmly fixed to the titanium member.

Abstract: The invention relates to a method for operating a press furnace, in particular for dental materials, with an embedding compound into which the preferably ceramic dental material can be introduced via a press ram (26), the speed of penetration of the press ram (26) being detected, wherein, during the pressing operation, an increase in the speed of penetration and/or a decrease is detected, and, based on this, a signal is output.

Abstract: The invention relates to a dental splint (11, 12) with a U-shaped base and wall-shaped reinforcements on the tongue and lip sides, said reinforcements forming channels, and to a method for the production of said dental splint. Said splint consists of different plastics of different degrees of hardness. The dental splint is thus flexible, offers a high degree of wearing comfort, and causes an increase in power and endurance in the wearer during athletic activities. An upper jaw dental splint can also be used as a mouth guard in contact sports with an additional reinforcement. Said dental splint for the upper jaw can be designed such that a free space is formed in the front teeth region after inserting the dental splint and clenching the teeth, whereby additional air for breathing can reach the oral cavity.

Abstract: A composite bio-ceramic dental implant and fabricating method thereof are disclosed. The composite bio-ceramic is sintered at a temperature between 1000 and 1800° C. using the nearly inert bio-ceramic powder and the active bio-ceramic powder or the completely resorbable bio-ceramic powder. The bioactive bio-ceramic material is dispersed in the inert bio-ceramic material. Therefore, the composite bio-ceramic has enough mechanical strength and good bioactivity for dental implant.

Abstract: The present application discloses an oral appliance, a device for making an oral appliance, a method of making an oral appliance, and a method of using an oral appliance. In certain embodiments, the oral appliance comprises first, second, and third moldable parts. Each of the first and second moldable parts is configured to form an impression of one or more of a user's upper teeth and the third moldable part is configured to form an impression of one or more of the user's lower teeth. The first and second moldable parts are coupled to the third moldable part to form the oral appliance and are adjustable relative to the third moldable part. The moldable parts facilitate positioning the user's jaw such that there is vertical separation between the maxilla and the mandible when the oral appliance is installed in the user's mouth.

Abstract: A method of making a dental blank comprises the steps of independently compacting a first and second zone of a quantity of ceramic particles. During compacting, the first and second zones have different compaction factors in at least one stage. Such blanks may be pre-sintered and used in the manufacture of dental restorations. The method may help in controlling the homogeneity of the material structure during manufacturing the blanks.

Abstract: A tooth to be used in a jaw tooth model which allows students under dental training to experience oral works and therapeutic practices. More particularly, the present invention relates to a tooth to be used for experiencing morphological studies in the formation of an anchor tooth, the formation of a cavity and so on, particularly a tooth to be used in a jaw tooth model provided with standards for evaluating tooth formation, a method of producing the same, and an apparatus for confirming tooth formation to be used in a jaw tooth model which is provided with standards for evaluating tooth formation.

Abstract: A method of manufacturing a translucent ceramic is provided. The method comprises: mixing a raw powder and an organic binder and kneading them to obtain a compound, the raw powder containing an aluminum oxide powder and a magnesium oxide powder, and the organic binder containing a first organic component and a second organic component; molding the compound in a predetermined shape by an injection molding method to obtain a green body; debinding the organic binder contained in the green body to obtain a brown body; and sintering the brown body to obtain a sintered body of the translucent ceramic. When the softening point of the first organic component is defined as “T1” (° C.) and the softening point of the second organic component is defined as “T2” (° C.), the kneading step is carried out at a temperature in the range of T2 or higher but lower than T1 after the raw powder and the organic binder are preheated at a temperature in the range of T1 to T1+100(° C.). An orthodontic member is also provided.

Abstract: The supplement dispensing mouthguards disclosed herein include one or more supplement cavities that store a supplement and one or more openings connected to the supplement cavities. The openings receive the supplement into a mouthguard and discharge the supplement from the mouthguard into a user's mouth. The supplement dispensing mouthguards may be worn during physical activity for protection and/or jaw alignment. Once a desired supplement has filled, been inserted, or placed within the mouthguard, the mouthguard is inserted into the user's mouth and the supplement is gradually and safely dispersed into the user's mouth through openings in the mouthguard.

Abstract: A dental blank has at least an inner zone (or layer) of a first color and an outer zone (or layer) of a second color, wherein the inner and outer zones are concentric. The inner zone can be surrounded in its entirety by the outer zone such that only the outer zone is visible on all surfaces of the blank. Alternatively, the inner zone and the outer zone can extend to a same single surface of the blank, such that only the outer zone covers all remaining surfaces. The blank may also have an intermediate zone between the inner and outer zones. A method of fabrication includes solid free form processes, such as robocasting, laser sintering and 3D printing that allow for placement of multiple colors. A dental restoration made from the blank can have a variety of shades depending on a ratio of milled outer layers to internal layers.

Abstract: A dental blank has at least an inner zone (or layer) of a first color and an outer zone (or layer) of a second color, wherein the inner and outer zones are concentric. The inner zone can be surrounded in its entirety by the outer zone such that only the outer zone is visible on all surfaces of the blank. Alternatively, the inner zone and the outer zone can extend to a same single surface of the blank, such that only the outer zone covers all remaining surfaces. The blank may also have an intermediate zone between the inner and outer zones. A method of fabrication includes solid free form processes, such as robocasting, laser sintering and 3D printing that allow for placement of multiple colors. A dental restoration made from the blank can have a variety of shades depending on a ratio of milled outer layers to internal layers.

Abstract: A method of making a biometric dental appliance. A first article can be formed of a first material based on a first digital surface representation having a desired outer shape of the dental appliance. A portion of the first article can then be removed to form an outer layer of the dental appliance comprising a cavity dimensioned to accommodate an inner layer. A second article can be formed by filling the cavity of the first article with a second material. The second material can have at least one different structural and/or optical property than the first material. The second article can be further processed, as desired. For example, a desired inner shape can be formed in the second article. Such a desired inner shape can be based on a second digital surface representation of a dental object configured to receive the dental appliance.

Abstract: The invention provides a dental model with an artificial jawbone with cavities, at least two artificial teeth, and interfaces each connecting a corresponding tooth to the jawbone such that it extends upwards from a corresponding cavity. To enable movement of the teeth relative to the jawbone and relative to the other teeth, the teeth are connected to the jawbone via interfaces which are more elastically deformable than the teeth and jawbone. In this way, a realistic dental model can be made in a very simple and cost efficient manner, e.g. in an SLS process. The invention further provides a method of making the dental model.

Abstract: The invention relates to a method for producing a set of shell appliances for correcting tooth misalignments in a patient, wherein a target position is established from a current position of the patient's teeth, models of the patient's individual teeth or of groups of the patient's teeth are produced and can be arranged on a support to form a model of a set of teeth. In accordance with the invention, a set of supports is produced, which have a respective fitting position for each of the tooth models, the position and alignments of said fitting positions predefining a position of the tooth model, wherein the positions predefined by the supports form a sequence that leads in steps to the target position, and the tooth models are fitted in succession onto the individual supports, thus producing a respective model of a set of teeth, and a shell appliance is produced from each of these models of a set of teeth by thermoforming.

Abstract: Process for preparing an osteointegrative surface on a ceramic body by chemically modifying at least a part of the surface of the body. The process includes the subsequent steps of depositing a calcium phosphate mineral on the surface of a ceramic basic body by projecting agglomerates of particles comprising the calcium phosphate mineral towards the basic body, and heating the basic body with the calcium phosphate mineral deposited thereon.

Abstract: A ceramic implant, in particular a dental implant, is provided, which has a ceramic, endosseous surface region, in other words, which is to say a region that is intended to be embedded into the bone tissue and that is made of a ceramic material. The surface region has at least one first zone having a surface modification, in which first zone the surface is roughened or porous, and at least one second zone, in which the surface is not roughened or porous.

Abstract: A zirconium oxide dental implant is manufactured by injecting a zirconium oxide paste in a mold for obtaining a green body and sintering the green body to be the zirconium oxide dental implant. The green body is formed integrally with a first external thread section, a first none-thread section, a second external thread section, second none-thread section, wherein the first external thread section and the second external thread section are formed on the peripheral of the green body and divided by the first none-thread section and the second none-thread section. The mold may include at least a first molding part and a second molding part. The first molding part has a first imprinting inner surface for forming the first external thread section of the green body, and two none-thread inner surfaces for forming a half portion of the first none-thread section and the second none-thread section of the green body respectively.

Abstract: An appliance and methods are described that include embodiments of a mandibular advancement or positioning device which can use elastic bands to pull the jaw forward. The appliance has an upper plastic tray conforming to the patient's upper teeth and including a set of retention hooks coupled to the upper plastic tray via being encased in plastic, one on the right and one on the left anterior buccal portion of an upper plastic base. The appliance also has a lower plastic tray conforming to the patient's lower teeth and has a set of bite pads integrated with a second set of plastic retention hooks encased in plastic extending outwardly from the tooth. The appliance includes the upper and lower plastic trays and specially formed elastic bands of a plurality of lengths and strengths replaceably attached to the retention hooks on both sides of the trays to pull the mandible forward for treatment.

Abstract: A therapeutic dental mouthpiece-forming substrate includes: a flexible board on which an electrical component used for dental arch treatment is mounted; and a thermosoftening resin sheet in which the flexible board is embedded in an airtight or watertight state.

Abstract: A dual layer mouthguard with a U-shape polycarbonate/EVA or elastomeric material skeletal base includes channels and ramps to ensure a uniform thickness on the occlusal, buccal and lingual surfaces of the teeth for proper alignment of the jaw and positioning for protection during the placement of the mouthguard. The liner is softer than the base when introduced to heat and remains softer as it is cooled. The base may also include metal/magnetic insertion to serve as a tethering device for temporary storage.

Abstract: The present invention relates to a dental prosthesis, and more particularly, to a screw-engagement type dental prosthesis which enables non-preparation of the natural tooth because it is manufactured by division into two pieces or three pieces, which can be simply installed, and in which the occlusal pressure can be uniformly dispersed. Also, the present invention relates to a method of casting a screw-engagement type dental prosthesis by using a bolt made of carbon or ceramics. Furthermore, a keeper and a body are engaged with each other via a bolt in a state where thin and semi-conical maintaining portions formed on inner inclination surfaces of abutment teeth of both sides with a small preparation are accurately engaged with keys formed on inner inclination surfaces of the keeper and the body in correspondence to the maintaining portions.

Abstract: A translucent zirconia sintered body, a dental article comprising a shaped, translucent zirconia body, a zirconia green body, and methods of making a translucent zirconia sintered body, methods of making a dental article comprising a shaped, translucent zirconia body, and methods of making a zirconia green body are described.

Abstract: A method of making an orthodontic appliance for repositioning teeth or as a retainer according to the present invention includes preparing a dental model for the fabrication of an orthodontic aligner, placing the dental model on a thermo-forming machine, thermoforming a soft flexible material onto the dental model, the soft flexible material having adhesive material covered by release liner, on the side facing away from the portion of the dental model to which it is thermoformed, trimming off excess soft flexible material from the dental model, peeling off the release liner to expose the adhesive material, applying a predetermined length of flexible tension strain material to the adhesive side of the soft flexible material, thermoforming a harder, more rigid material over the soft flexible material which has the flexible tension strain material attached, and trimming the excess hard material from the dental model.

Abstract: The present invention relates to a color adapting composition used for coloring and color adapting porcelain for ceramic crown such as dental restorations and prosthetics, and aluminosilicate glass appropriate for using in a color adapting composition. More specifically, a color adapting composition for dental porcelains are prepared by blending two or more kinds of glass frits having different sintering temperatures from each other and an inorganic pigment or a colored glass obtained by previously dispersing inorganic pigments in glass.

Abstract: Apparatus for repositioning teeth from an initial tooth arrangement to a final tooth arrangement, comprising a series of individual appliances comprising an introductory appliance that conforms to the initial tooth position, and remaining appliances of the series designed to incrementally reposition the teeth from an initial tooth arrangement, through a plurality of intermediate tooth arrangements (if there are any), and to a final tooth arrangement.

Abstract: A method for rapidly creating a custom mouthpiece is disclosed. The method may include providing a form defining a void sized and configured to accommodate teeth of a user. The method may also include applying a curing polymer within the void. The method may also include placing the form and the curing polymer within a mouth of the user so as to move the teeth of the user into the curing polymer to make a mold of the teeth of the user. The method may also include allowing the curing polymer to cure while in the mouth of the user, and removing the form and curing polymer from the mouth of the user.

Abstract: A method and system for thermal forming an object. A mold is provided, a shape of which corresponds to a desired shape of the object. A material is inserted into a heating area, and the material is heated using a plurality of independently controllable heat sources that heat different areas of the material. The heated material is then disposed over or into at least a portion of the mold so as to deform the material. The deformed material may then be trimmed so as to form the object.

Abstract: A system and method for applying a uniform micro-textured surface treatment to a deep-thread dental implant by rapidly modulating the focal point of a laser to laser etch surfaces of both the thread peaks and the thread valleys in a single pass.

Abstract: The disclosure provides a new photopolymerizable resin system for dental restorative materials. The resin system utilizes a thiol-ene component as the reactive diluent in dimethacrylate systems. The ternary resin system comprises a thiol monomer, an ene monomer and a dimethacrylate monomer. Use of an off-stoichiometric ratio of thiol:ene functional groups in favor of excess thiols results in enhanced overall functional group conversion, improved polymer mechanical properties, and reduced shrinkage stress of the ternary system when compared to either traditional dimethacrylate or thiol-ene resin systems.

Abstract: According to one embodiment, a dental device is provided. The dental device comprises an arched frame configured to be positioned proximate to the occlusal surface of a user's dental arch such that the arched frame extends beyond the cuspids of the user's dental arch. The arched frame defines a plurality of apertures, and the arched frame comprises an adjustment mechanism. The dental device further comprises a moldable tray coupled to the arched frame. The moldable tray engages the plurality of apertures and comprises a channel configured to engage at least some of the teeth of the user's dental arch.

Abstract: The present invention relates to a tooth which is used in a dental arch model with which dental students can experience dental works in the oral cavity and practice treatments. More specifically, the present invention relates to a tooth composition for formation trainings such as abutment tooth formation and cavity preparation. Since conventionally used dental arch models have a grinding sensation different from a natural tooth, dental students having completed formation trainings such as abutment tooth formation and cavity preparation by using these conventional models are frequently puzzled to have different grinding and handling properties upon dental works in the oral cavity in practice. That is, these conventional dental arch models are largely different from a natural tooth in grinding sensation including slipperiness and easiness in grinding.

Abstract: A method of making a dental article including a pressable body possessing a flexural strength of at least 125 MPa and flowable at about 850° C. to about 950° C. The body is composed of at least a glass matrix phase having a composition comprising Li2O and MgO.