Abstract:
Eine Patrize (2) zur reversibel lösbaren Verbindung einer dentalen Prothesenkonstruktion mit einem Kieferknochen, welche Patrize (2) mit einer Befestigungsstruktur ausgebildet ist, über die die Patrize (2) am Kieferknochen, an einem im Kieferknochen eingepflanzten Implantat, an einem Zahnstumpf oder an einem Nachbarzahn befestigbar ist, umfasst einen Körperabschnitt (12) mit einer einer Mantelfläche eines Zylinders entsprechenden Aussenfläche, wobei die Mittelachse des Zylinders eine Längsachse (19) der Patrize (2) definiert; einen in Bezug auf die Längsachse (19) der Patrize (2) zum Körperabschnitt (12) axial versetzten Einschnappabschnitt (11), der eine konvex gekrümmte Aussenfläche umfasst, die die Aussenfläche des Körperabschnitts (12) von der Längsachse (19) der Patrize (2) aus nach aussen überragt; und ein die Patrize (2) in Bezug auf seine Längsachse (19) axial abschliessendes Kopfende (13). Der Einschnappabschnitt (11) ist näher beim Kopfende (13) angeordnet als der Körperabschnitt (12) und zwischen der konvex gekrümmten Aussenfläche des Einschnappabschnitts (11) und dem Kopfende (13) ist ein konkaver Zwischenabschnitt (18) angeordnet.
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:
Das Verfahren dient zur reversiblen Befestigung eines Aufsatzteils auf einem Sockelteil mittels eines diese fest miteinander verbindenden Verbindungsmittels. Dazu wird zwischen dem Sockelteil und dem Aufsatzteil ein haftvermittelndes Trennmaterial angeordnet, das unter dem Einfluss elektromagnetischer Strahlung seine haftvermittelnde Wirkung reversibel oder irreversibel verliert.
Abstract:
Advanced material is preferably used for the manufacturing of dental crowns which may be used to restore decayed or to protect other compromised tooth structure. The dental crowns are preferably preformed or prefabricated with an undercut; tooth colored; for primary or permanent; anterior or posterior teeth; and may include internal metal or other strengthener(s). The undercut has an inwardly arcuate and angled taper toward the gingival end.
Abstract:
The invention is used to improve and secure the assembly of a prosthetic dental cap and the support thereof, whereby said two parts are nested together and, optionally, glued. The invention is characterised in that the contact surface between the two parts to be assembled is significantly increased by means of one or more complementary relief designs which form at least one set of alternating elements, namely convex and concave portions of surface or ridges, on the contact surface of each of the parts to be assembled. In this way, when the two parts are nested together, no gap exists between the two parts, either empty or filled with a cement or other substance which is malleable for assembly and subsequent hardening, except a possible housing for a fine layer of glue. In a preferred embodiment of the invention, the contact surface between the two parts is a pyramid or a truncated pyramid with a star-shaped base, preferably comprising three or four arms. The invention also relates to parts which are fitted with the aforementioned relief designs in accordance with the invention, the method of fixing a cap to the support thereof using the inventive device, and the method of producing two parts consisting in using preforms and a computer-assisted design and production software program.
Abstract:
A method and device for preparing the hard structures of teeth for the application of dental restorative materials, according to which, after a step of mechanical treatment, to remove a layer of tissue from the hard structure of the tooth, at a given zone affected by a disorder, and after removing the debris generated by such treatment, a layer of an adhesive substance is spread over the zone using an application head connected by a wire in a support handpiece to a control power circuit able to generate electrical signals which subject the given zone to a difference in potential which subjects the adhesive substance to an electrokinetic force due to the passage of an electrical current able to move the adhesive substance in an even and deep way inside dentinal tubules and so that it occupies the irregular surface of the tooth enamel.
Abstract:
A prefabricated inlay (1) for restoring a tooth by application and fixation in a cavity prepared in the tooth and having essentially the same shape as the inlay part adapted for insertion, is provided with a pin (6) which projects from the inlay part not adapted for insertion and which is arranged to be received in an inlay holder. The whole inlay (1) is made of a material translucent to light that is suitable for curing a light-curing material used for fixing the inlay in the cavity. The inlay holder has a light source and a light guide having a tip (18) with a recess (19) for receiving the pin (6) of the inlay (1), such that the light generated by the light source can be guided through the light guide and the inlay (1) to the light-curing material. A tooth restoration set comprises a plurality of prefabricated frustoconical inlays (1), preferably having the same cone angle as well as several different narrow-end diameters, and a plurality of frustoconical burrs having the same cone angle as the inlays (1) as well as corresponding different narrow-end diameters.
Abstract:
A method is proposed for adapting and implanting at least one dental porcelain chip (9) in a cavity (2, 3, 4). The cavity and each porcelain chip (9) are subjected to necessary etching, silanisation, and application of a binder before implantation occurs. At first, a moulding (10) is made of the cavity (2, 3, 4), whereupon the moulding (10) is fastened to the porcelain chip (9). Then the porcelain chip is contour worked to substantially the same shape as the moulding (10a), and the formed chip (9c) is placed in the cavity and fastened by means of a binder to the original tooth (1).
Abstract:
A luminescent coating is disclosed that is used to dimensionally control the curing of a photocurable agent placed in close contact with the coating. The coating is applied at the interface of structures, such as brackets and prosthetics, or may be applied directly on a curable material for use in 3D printing, at the location where bonding material is needed to be cured. The luminescent coating irradiates from its structure the curing radiations necessary to photopolymerize the resin in response to a first radiation irradiated on its structure of a different wavelength.
Abstract:
A system and a method for automating a medical process including a memory (20) storing a software program, a computer (21) connected to the memory for running the software program, a display (15) connected to the computer for generating a visual representation of output data generated by the computer running the program, a user interface (16) connected to the computer for obtaining image data representing a configuration of a patient treatment space (19) and fixed markers (28) in the treatment space and storing the image data in the memory, a robot arm (17) connected to the computer, and a medical tool (18) mounted on the robot arm wherein when a human (13) inputs a selected treatment procedure into the computer, the computer runs the software program to generate a tool path based upon the treatment procedure and the image data, and the computer operates the robot arm to move the medical tool along the tool path without human guidance, and wherein the data generated during the treatment procedure is stored, analyzed, and shared among collaborating computer systems (51).