113results about "Fastening prosthesis" patented technology

Dental attachment assemblies for a mouth of a patient are provided. Contemplated dental attachment assemblies may include an abutment member, and a retention member for attachment to the abutment member. The retention member may comprise an upper end and a continuous, unbroken skirt projecting from the upper end for fixed, non-patient removable, fixed engagement over an outer locating surface of the abutment member. The retention member can be constructed from a rigid material, such as PEEK, such that it provides a retentive force of about 10 to 75 pounds. The abutment member may be configured for attachment to an implant having an upper portion including a threaded portion configured to screw into a threaded recess of an abutment, and a lower portion including an angled platform and a threaded post extending from the platform.

A dental reconstruction comprises a connection device (2) with a first end bearing on an anchor (1) and a second end supporting a prosthesis (3). The cross section decreases between the first end and the second end. The connection device (2) defines a through-hole (9) and an abutment (10). A fastening screw (4) screws into an internally threaded portion (6) of the anchor (1) in order to fasten the connection device (2). A blocker (11) has a cross section that increases upon insertion of the fastening screw (4) into the through-hole (9). The blocker (11) fits into a groove (12) of the prosthesis (3) covering the connection device (2). The screw head (4a) has a circular section bearing on the blocker (11) in order to deform the blocker (11) and fit the blocker (11) into the groove (12) of the prosthesis (3).

To provide a magnetic attachment for an artificial tooth that includes a welding part having an excellent fall prevention force, a high magnetic attraction force, a sufficient magnetic cutout property, and excellent welding strength, and simplifies a process.SOLUTION: A flange having a projection part is provided in a Cr-based magnetic stainless steel cap 1 storing a permanent magnet 2 by cold working of combination of rearward extrusion press work and forward extrusion press work. On an outer surface of a magnetic structure excluding an attraction surface, a metal adhesive is applied to and curing processing is performed on a spiniform uneven surface. A shield plate 3 being a lid of a recessed opening part of the cap 1 includes a 18Cr-8Ni stainless steel magnet in a part 31 other than the outer peripheral part and a non-magnetically modified 18Cr-8Ni stainless steel non-magnetic part in the outer peripheral part 32. A welding part is formed by laser-welding a boundary part of the outer peripheral part 32 formed by the cap 1 and the non-magnetic part of the shield plate 3. A keeper 102 is formed of Cr-based soft magnetic stainless steel.SELECTED DRAWING: Figure 1

Dental matrices and crowns are disclosed for making dental veneers and crowns on teeth. The dental matrices are adapted to the specific tooth type (e.g., premolars, molars, canines, incisors, palatal teeth, lingual teeth) to be treated in a single procedure, and can provide a veneer on the tooth for an aesthetically pleasing appearance and then be resurfaced. The dental matrix for forming a crown on a tooth includes a body with expandable tabs, allowing the diameter of the opening to be expanded for removal of the matrix from the formed crown.

The goal is to provide dental treatment indexes and dental treatment sets that enable high-quality tooth restoration regardless of the practitioner's skill level, while also being manufactured with high efficiency. [Solution] A second dental treatment index 20 has a shape that can be superimposed on a first dental treatment index 10, which is made of a light-transmitting material and integrally molded by a 3D printer, and is made of a light-transmitting material that is harder than the light-transmitting material that forms the first dental treatment index 10, and is integrally molded by a 3D printer, and has multiple irregularities on its inner surface.

A dental preform (1) comprises a central portion (2) comprising a first elementary portion (2a) and a second elementary portion (2b) fixed to each other by a first resin (7) and separated at least by one web (6). The first elementary portion (2a) and the second elementary portion (2b) each comprise a plurality of first filamentary elements (5) and the first resin (4). The first filamentary elements (5) and the web (6) extend predominantly in a first direction (AA). A peripheral portion (3) formed by the web (6) is coiled continuously around the central portion (2) in order to form a spiral. A second resin mechanically binds the multiple layers of the spiraled web (6) and bonds the peripheral portion (3) to the central portion (2).

A device for dental prosthetic insert insertion and removal and system providing a tool and intuitive method directed to extraction and replacement of a low insertion force, securely fixed, easily manipulated and highly robust dental inserts for an implantable overdenture abutment prosthetic. Said dental insert placement and replacement tool offers an apparatus for consumer-based, individualized patient-based extraction and insertion of a “snaps” or dental inserts structure exhibiting an adjustable retentive strength and durability rating providing optimum retentive engagement and rotational movement, over an abutment projection, and atop an abutment member which requiring a low level of manual dexterity coupled with high prosthetic retentive effectiveness and ease of insert replacement and replacement.

A method of installing a fiber post for a post and core dental restoration uses a fiber post system which has a plurality of fiber posts having at least two distinct diameters for the fiber posts and at least two preformed fiber post lengths for the fiber posts. Each fiber post containing a visible depth marker indicative of where the post should be placed above and below root orifice, whereby the fiber post selected is configured to be based upon the root length of the specific tooth obturated, yielding proper post space preparation apically for cementation and coronally for foundational core build up. The resulting implanted post eliminates or minimizes post manipulation during tooth preparation to create a mono-block of core material around the post during cementation and build up resulting in no disruption of either bond during preparation.

Dental matrices and crowns are disclosed for making dental veneers and crowns on a tooth. The dental matrix is adapted for the specific tooth type (e.g., premolar, molar, canine, incisor, palatal, lingual) being treated in a single treatment, which results in a veneer on the tooth, which may then be resurfaced, for an aesthetically pleasing appearance. A dental matrix for forming a crown on a tooth includes a body having an expandable tab, which allows the diameter of an opening to be expanded for removal of the matrix from the formed crown.

A dental framework is provided. The framework may be attached to a patient between bone and gums in a patient's mouth, with the framework being suited to receive one or more crowns, i.e. prosthetic teeth. The framework has a bar which receives the crown(s) and a mesh portion which allows the in-growth of soft tissue (gums).

To provide a keeper constituting a denture attachment and a method for manufacturing the same.SOLUTION: A keeper 3 in which a holder 32 is brought into contact with a main side surface of a keeper main body 31, laser welding is simultaneously performed from both sides with respect to a contact portion on a lower side of a diameter of the holder, next, laser welding is simultaneously performed from both sides with respect to a contact portion on an upper side of the diameter of the holder, a center portion of a contact surface is in a contact state between an unmelted keeper main body and the holder, an outer peripheral portion thereof becomes a melted portion 34, and a joint portion is formed, and the melted portion of the contact portion forms a melted portion smaller than a radius of the holder by laser welding at four places.SELECTED DRAWING: Figure 3

The utility model discloses a removable partial denture support belongs to false tooth technical field, including support subassembly, the support subassembly includes support frame, the side surface of support frame is established with a set of positioning hole, the top of support frame is equipped with a set of positioning seat, the side surface of every positioning seat all is connected with false tooth body, the inner side wall of every positioning hole all is established with the thread hole, the inner side wall of every thread hole all is established with the accommodation slot, the side surface of every mounting screw all is established with cross type draw -in groove. That removable partial denture support, through positioning hole and positioning seat adaptation, it can be convenient and fast to install false tooth body, and cooperate mounting screw and accommodation slot, thread hole and bolt hole adaptation, and cross type draw -in groove's use, it can be convenient and fast to fix false tooth body positioning, and can be convenient and fast to tear open partial denture body and support frame, and it has improved the functionality of the equipment.

A dental implant attachment system for implant-supported and implant-retained type removable dentures and a method of use is described. The dental attachment system comprises a female component embedded in the body of a denture on a fitting surface for lock up and a male component usually connected to a dental implant and use mechanism of the snap on coupling engageable formation movement with non-static friction by pressing female component onto the male component. The male and female components have a semi-elliptical parabolic or dome shape with a tunnel shape or inverted U shape lockers and antirotating thorns. The novel use of geometrical shapes for the mating surfaces of dental attachment system components prevents distortion and improves the mating movement with non-static friction.

A computer-implemented method and system for dental bridge reconstructions include receiving an order for a plurality of single dental units for reconstruction, receiving a 3D virtual model of each jaw of a patient's dentition, and providing virtual reconstructions of the plurality of single dental units as part of a virtual dental bridge.

It describes a method for producing a dental prosthesis from a blank using a CAD / CAM device. The blank consists partly of base material and partly of tooth material, and an interface between these materials is formed in the form of a wave, the crests and troughs of which alternate along the outer circumference of the blank. The apex of each crest has a substantially radial orientation relative to the blank. The CAD / CAM device determines the position of a retention element, in particular an outer telescope, a bar cap, or an abutment, within the prosthesis for attaching the prosthesis to the patient's alveolar ridge, such that the interface is penetrated by this element. The retention element is attached by bonding or polymerization.

To provide a dental preform having an elastic modulus gradient between a central portion and a peripheral portion so as to represent mechanical features of natural tooth.SOLUTION: A dental preform includes a central portion formed by a plurality of first wire-like elements extending mainly in a first direction and first resin. An annular peripheral portion passes surroundings of the central portion perpendicularly to the first direction. The peripheral portion is provided with a second wire-like element and second resin. The peripheral portion is provided with a plurality of layers arranged on one another perpendicular to the first direction. Each of the layers has at least one winding formed by at least one of second wire-like elements. At least one second wire-like element indicates a longitudinal direction off-set with respect to the first direction by an angle comprised between 10° and 80° or between 100° and 170°. Second wire-like elements of two consecutive layers show opposite orientations.SELECTED DRAWING: Figure 5

The utility model discloses an adjustable adsorption denture relates to medical equipment technical field. Including adsorption base, the upper end of adsorption base is provided with the mounting groove, is provided with the molar in the mounting groove, the bottom of molar is provided with a plurality of recess, is rotatably provided with a plurality of micro screw in the mounting groove, is screw thread connection with the moving sleeve on micro screw, is fixed with the moving plate on the moving sleeve, the upper end both sides of moving plate are provided with two different heights cross bar, the recess top is provided with the insertion slot, both sides of insertion slot all are provided with the inclined slot mouth, and the both ends of cross bar are slidably arranged in inclined slot mouth. The utility model discloses through the rotation block to the micro screw is adjusted, then through micro screw drive cross bar removal, can realize the height adjustment of molar under the cooperation of inclined slot mouth, and the more serious, can be adjusted higher with the wear condition of molar, until the molar can not be used again after replacing, can more fully utilize the molar, reduces the replacement frequency, reduces the use cost.

DENTAL PREFORM, METHOD FOR MANUFACTURING SUCH A PREFORM, AND METHOD FOR MANUFACTURING A DENTAL PROSTHESIS FROM SUCH A PREFORM. A dental preform (1) comprises a central portion (2) consisting of a first elementary portion (2a) and a second elementary portion (2b) bonded to each other by a first resin (7) and separated by at least one layer (6). The first elementary portion (2a) and the second elementary portion (2b) each comprise a plurality of first wire elements (5) and the first resin (4). The first wire elements (5) and the layer (6) extend predominantly in a first direction (AA). A peripheral portion (3) formed by the layer (6) is wound continuously around the central portion (2) to form a spiral. A second resin mechanically bonds the multiple layers of the spiraled layer (6) and bonds the peripheral portion (3) to the central portion (2). Figure for the abbreviation: Figure 1

A dental implant-retained record base device and methods of fabricating thereof are provided, and a method for obtaining an interocclusal record. The method involves inserting an impression post into a dental implant in a partially-dentate patient and capturing a dental impression to obtain a dental cast inclusive of the impression post. A light-curable resin is molded into a cubic shape and subsequently attached to the dental cast at position of the impression post. Upon exposure to visible light, the resin is cured to form a record base device, which is then adjusted to facilitate the positioning of interocclusal record material. The dental implant-retained device constructed from the light-cured resin is configured for attachment to the dental implant for obtaining the interocclusal record for the patient.

A method for manufacturing a dental prosthesis (2), which is provided with a number of matrix elements (18) corresponding to one of the matrix elements (14) in each case for removable fixation on a number of teeth (6) crowned with a respective male element (14) in the mouth of a patient, should be designed for a particularly high accuracy of fit of the dental prosthesis (2) using methods which are kept as simple as possible. According to the invention, multi-part matrix elements (18) are used for this purpose, each comprising an inner cap (32) which can be slipped onto the associated male element (14) and an outer cap (34) which is attached to the dental prosthesis (2), wherein in the space between the inner and outer caps (32, 34), an intermediate body (36) made of thermoplastic material connecting them to one another being arranged in the space between the inner and outer caps (32, 34), the intermediate body (36) being heated to a temperature above its softening temperature and thus being made deformable in order to align the inner cap (32) precisely relative to the outer cap (34) of the respective matrix element (18), and then, using the deformability of the intermediate body (36), the inner cap (32) is aligned relative to the outer cap (34) with regard to an optimized accuracy of fit, taking into account intraoral data reflecting the actual dentition situation in the oral cavity of the patient, before the relative position of the inner cap (32) set in this way relative to the outer cap (34) is preserved as a result of the solidification of the intermediate body (36) occurring during the subsequent cooling of the intermediate body (36).

There is described a conometric abutment for use with a multi-unit abutment and a friction-fit dental prosthesis. The conometric abutment comprises a dental prosthesis attachment member operable to engage with a dental prosthesis to form a friction fit attachment to the prosthesis; and a multi-unit abutment attachment member operable to form an attachment to a multi-unit abutment. Also described is a kit of parts comprising a multi-unit abutment, and optionally a dental prosthesis and a dental implant.

To provide a completely sintered zirconia body that does not cause deformation and that, while maintaining high strength, has more exceptional light transmissivity and more exceptional tonal saturation compared to zirconia cutting objects for dental cutting produced from zirconia raw material powder containing various stabilizers.SOLUTION: A zirconia cutting object for dental cutting of the present invention is a semi-baked zirconia cutting object for dental cutting containing semi-baked ceramic particles, and the zirconia cutting object for dental cutting comprises zirconium oxide, a stabilizer formed from an oxide, and a water-soluble compound salt that is not an oxide and contains at least one element selected from calcium, magnesium, and rare earth elements. The amount of the stabilizer in the semi-fired ceramic particles is 2 to 7 mol%, and the amount of the water-soluble compound salt in the zirconia cutting object for dental cutting is 0.1 to 3.5 mol%.SELECTED DRAWING: None

This application provides a chain-type removable denture, relating to the field of dentures. It includes artificial teeth mounted on a base, with one artificial tooth corresponding to one base. Adjacent to one artificial tooth is another artificial tooth or a dental sleeve. The base fits snugly against the missing tooth, and the dental sleeve fits snugly over the outside of the abutment tooth. Connectors are provided on both sides of the artificial teeth and both sides of the dental sleeve. A pin is detachably inserted between adjacent connectors. Multiple artificial teeth and dental sleeves are connected sequentially or alternately in a chain-like manner. This application has the advantage that if the user's abutment tooth falls out again, only the corresponding dental sleeve needs to be replaced with an artificial tooth, resulting in minimal structural changes to the overall denture, reducing replacement costs for the user, and shortening the adaptation time to the new denture.

Dental prosthesis (1) with an inner crown (3, 14, 15, 17) and an outer crown (2, 11, 12, 13), wherein the inner crown (3, 14, 15, 17) and the outer crown (2, 11, 12, 13) are designed to be arranged in a telescopic arrangement on a tooth stump (5) or a dental implant abutment (9), wherein in the telescopic arrangement the inner crown (3, 14, 15, 17) is placed on the tooth stump (5) or the dental implant abutment (9) and the outer crown (2, 11, 12, 13) is placed on the inner crown (3, 14, 15, 17).It is essential that the inner crown (3, 14, 15, 17) and the outer crown (2, 11, 12, 13) are designed to form a detachable connection in the telescopic arrangement in the manner of a press fit, and that the outer crown (2, 11, 12, 13) is made entirely of ceramic and in particular is free of metal, and that the inner crown (3, 14, 15, 17) is made of ceramic or polyetheretherketone (PEEK).

The invention belongs to the technical field of false tooth stable installation, and discloses elastic clamping type false tooth stable installation equipment which comprises a false tooth body, a plurality of elastic clamping parts are arranged in the false tooth body, each elastic clamping part comprises a holding rod fixedly connected to the inner wall of the bottom end of the false tooth body, and the holding rod is fixedly connected to the inner wall of the bottom end of the false tooth body. A clamping block is fixedly connected to the bottom end of the holding rod, and the clamping block can be discontinuously clamped to a nailing cylinder part planted on the gum of a human body; through driving and clamping combination of a micro direct-current motor, a threaded cylinder, a bevel conical groove and an oblique conical clamping plate, the number of rotation turns of the motor can be preset through a controller, the clamping force of a rubber abutting plate to a holding rod is accurately adjusted, different abutment conditions are adapted, and the problem that traditional clamping force is uncontrollable is solved; the magnetic attraction positioning function and the inclined buffering function are achieved, the dynamic adaptability of the holding rod and the nailing cylinder piece is further enhanced, and the risk of denture looseness is reduced.