WO2010115610A1 - Facette prothétique pouvant être produite à l'échelle industrielle, destinée à être fixée de manière durable sur une dent - Google Patents

Facette prothétique pouvant être produite à l'échelle industrielle, destinée à être fixée de manière durable sur une dent Download PDF

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Publication number
WO2010115610A1
WO2010115610A1 PCT/EP2010/002167 EP2010002167W WO2010115610A1 WO 2010115610 A1 WO2010115610 A1 WO 2010115610A1 EP 2010002167 W EP2010002167 W EP 2010002167W WO 2010115610 A1 WO2010115610 A1 WO 2010115610A1
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WO
WIPO (PCT)
Prior art keywords
veneer
tooth
height
veneers
elevations
Prior art date
Application number
PCT/EP2010/002167
Other languages
German (de)
English (en)
Inventor
Sebastian Horvath
Domonkos Horvath
Nicole Schmuker
Original Assignee
Sebastian Horvath
Domonkos Horvath
Nicole Schmuker
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sebastian Horvath, Domonkos Horvath, Nicole Schmuker filed Critical Sebastian Horvath
Publication of WO2010115610A1 publication Critical patent/WO2010115610A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/20—Repairing attrition damage, e.g. facets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/70—Tooth crowns; Making thereof
    • A61C5/77—Methods or devices for making crowns
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same
    • A61C13/09—Composite teeth, e.g. front and back section; Multilayer teeth

Definitions

  • the present invention relates to devices and veneers for permanent attachment to teeth, methods of making the devices and veneers, methods and apparatus for securing the devices and veneers, the use of the devices and veneers, and kits of parts comprising the devices and veneers of the invention and other applications and embodiments of the devices and veneers according to the invention.
  • Veneers are thin ceramic shells that are attached labially to the tooth. Veneers serve to correct tooth color, tooth position and / or tooth shape. Veneers can be made both with and without inclusion of the incisal edge and the proximal contact. A veneer thus serves to veneer a tooth, in particular the labial side of a tooth in the visible area of the mouth.
  • Permanent veneers are made individually, usually by a dental technician or by CAD / CAM devices. Veneers can be made from a variety of plastic, composite or ceramic materials. To make an individual veneer, an impression is made of the tooth to be veneered. Based on this impression, a veneer can be produced by means of different methods, for example based on a model of the labially prepared tooth. The inside of the veneer is adapted to the specific labial surface of the tooth to be veneered. The inside, ie the oral surface, of the veneer is thus adapted to the individual tooth anatomy. The outside The veneer is smooth and designed as desired by shape and color, so represents the ideal or desired shape or ideal or desired color of the tooth to be blended.
  • the veneer is applied to the tooth so that the veneer side, the oral surface as a negative represents the specific labial contour of the surface of the tooth, fits snugly on the tooth contour.
  • Veneers are attached to the labial tooth surface using special adhesives or cements, such as fine hybrid composites. Due to the exact fit of the individually shaped veneer inner side, a uniform adhesive layer can be achieved when attached to the tooth. Corrections of tooth position and tooth shape are made by the design of the veneer in different thicknesses.
  • US Pat. No. 4,579,530 describes a method for producing a veneer made of high-performance ceramics, by means of which individual veneers with a very thin layer thickness of only 0.3 to 0.55 mm can be obtained. These veneers can be permanently attached non-invasively to the unprepared tooth with an adhesive. Again, corrections of tooth position and tooth shape are made by different thicknesses of the veneer.
  • Such thin Porzellanveneers are known in the market as Lumineers ®.
  • the surface of the inside of a permanent veneer is often prepared.
  • the preparation can be achieved, for example, by fen with a diamond grinder or by sandblasting, for example, with an alumina-containing air stream done. This preparation results in a roughness of the prepared surface.
  • the roughness of the roughened inner surface of a veneer is generally up to 60 .mu.m, in particular between 15 .mu.m and 50 to 60 .mu.m.
  • the usual veneer techniques require two medical appointments for the patient. At the first appointment the impression of the tooth is taken. The impression is then used to make the veneer. The insertion and attachment of the veneer to the tooth then takes place at a second appointment. This is costly and time-consuming for both the patient and the dentist.
  • EP 0054785 A1 proposes a method in which a veneer can be created at a doctor's appointment and attached to the tooth. This method is used for instance as a so-called CEREC ® process.
  • the doctor's appointment in this procedure takes a long time because the veneer is made during the procedure.
  • the process is very costly because the dentist must use expensive special equipment such as a measuring camera and a computer-aided grinding unit.
  • Day veins or temporary veneers are made up, ie not made individually. They differ from individually made veneers in that their oral surfaces are not adapted to individual tooth anatomy.
  • the insertion of the Ranveneers takes place either by the dentist in a similar form as the insertion of individual veneers or by the patient himself with a provisional mounting material. Corrections of tooth position and tooth shape are made by different thicknesses of the fastening material that lies between the tooth and the vein.
  • Foldveneers are known for example from US 2005/0227204 A1. The veneers shown there have a completely smooth and even oral veneer surface.
  • the present invention is based on the technical problem of providing a device which overcomes the deficiencies, in particular the indicated deficiencies, of the prior art.
  • the present invention is also based on the technical problem of providing a durable veneer that can be manufactured by machine, in particular by packaging and mass-produced.
  • the present invention is also based on the technical problem of providing a durable veneer that can be manufactured industrially.
  • the present invention is also based on the technical problem of providing a veneer which is produced by machine, in particular by packaging and as a mass product, or industrially produced, and can be used as a permanent vein.
  • the present invention is also based on the technical problem of providing a veneer which is manufactured by machine, in particular ready-made and mass-produced and can be attached well and easily to the tooth, in particular achieving at least a similar aesthetic result as when using custom-made veneers ,
  • the present invention is also based on the technical problem of providing a durable veneer that can be manufactured at low cost.
  • the present invention is also based on the technical problem of providing a durable vein that is available to the patient at a low cost.
  • the present invention is also based on the technical problem of providing a durable veneer that can be produced by machine and assembly in consistently high quality.
  • the present invention is also based on the technical problem of providing a device which solves a combination of two or more, in particular all, mentioned technical problems.
  • the present invention solves the underlying technical problem by providing a device according to the claims.
  • the present invention solves the underlying technical problem in particular by providing a cup-shaped device for attachment to a tooth, wherein the surface of the inside of the device has at least two height levels.
  • the device is in one piece or at least two parts, in particular two parts.
  • the device is in one piece.
  • the device is a veneer.
  • the present invention solves the underlying technical problem by providing a veneer according to the claims.
  • the present invention solves the underlying technical problem, in particular by providing a veneer, wherein the surface of the inside of the veneer has at least two height levels.
  • a veneer according to the invention is a plate which has a generally shell-shaped surface and has an outer side and an inner side.
  • the inside of the veneer is the side that is attached to a tooth, especially on the labial front of a tooth.
  • the surface that forms the inside of the veneer is also known as the oral base.
  • the outside of the veneer is the side that serves the veneer, that is, the side away from the tooth.
  • the surface that forms the outside of the veneer is also called a labial surface.
  • the oral base surface is at least partially concave.
  • the oral base is preferably concave.
  • the labial surface is at least partially convex.
  • the labial surface is convex.
  • the oral base area is adapted in its dimensioning to the typical size of a labial front of a tooth.
  • the oral base area forms the first height level of the veneer.
  • the distance between the oral base and the labial surface of the veneer should be understood as the thickness of the veneer.
  • the shortest possible distance between a point of the oral base and a directly opposite point of the labial surface of the veneer is thus the section of the veneer with the smallest thickness.
  • the distance between the oral base and the labial surface of the veneer may vary. Even if the distance between the oral base and the labial surface of the veneer varies, the oral base forms only the first height level, since the height levels are according to the invention based on the oral base and not on the labial surface of the veneer.
  • an inventive veneer is as thin as possible, which means that the distance between the oral base surface and the labial surface of the veneer is as thin as possible.
  • the distance between the oral base surface and the labial surface of the veneer is preferably between 0.1 and 2 mm.
  • the distance between the oral base surface and the labial surface of the veneer is preferably between 0.2 and 1 mm.
  • the distance between the oral base surface and the labial surface of the veneer is preferably between 0.3 and 0.8 mm.
  • the distance between the oral base surface and the labial surface of the veneer is between 0.3 and 0.6 mm.
  • the distance between the oral base surface and the labial surface of the veneer is at least 0.1 mm.
  • the distance between the oral base surface and the labial surface of the veneer is at least 0.2 mm. According to the invention, be seen that the distance between the oral base and the labial surface of the veneer is at least 0.3 mm.
  • a veneer that is as thin as possible can be particularly advantageous if it is to be attached to a non-prepared or ground tooth.
  • the veneers comprise bent areas covering the incisal edge of a tooth.
  • the incisal edge is not covered.
  • the possible coverage of the incisal edge according to the invention belongs to the oral base of the veneer and thus to the first height level.
  • the veneer incorporates the proximal contact.
  • the area which includes the proximal contact according to the invention belongs to the oral base of the veneer and thus to the first height level.
  • the first x height level of the surface of the inside of a veneer according to the invention is formed by the oral base of the veneer.
  • the veneer base body is formed by the first height level and the labial surface, which represents a, preferably curved, platelet or small dish, wherein this main body of the platelet or bowl may be of different thickness at different locations.
  • a thicker section of a veneer basic body does not constitute a second or further height step.
  • the veneer basic body of a veneer body according to the invention For example, neers may correspond in dimension, shape, curvature and / or thickness to a typical veneer as known to those skilled in the art.
  • the dimensioning of the veneer base body is based on the dimensioning of a veneer from the prior art.
  • One skilled in the art will be aware of typical thicknesses, widths, heights, radii of curvature, and shapes of a conventional veneer, such as a conventional day-vein. He can easily transfer these typical parameters to the basic body of a veneer according to the invention. In particular, he can choose dimensions which are typical for certain teeth, for example dentis incisivi, dentes canini, dentes praemolares or dent moles.
  • One skilled in the basic dimensions and deviations in the dimensioning of labial surfaces of human teeth are known, so that he can easily generalize this dimensioning, can form an average value and / or transferred to a veneer according to the invention.
  • the person skilled in the art can also combine different dimensions or manufacture various veneers according to the invention with different dimensions.
  • the surface of the inside of a veneer according to the invention has at least two height levels.
  • the first height level is formed by the oral base of the veneer.
  • the second and each additional height level has a greater distance to the labial area than would be the oral footprint at that point.
  • the veneer is thus preferably thicker at the second and each further height level than at the first height level.
  • the second and any further height level preferably form according to the invention. elevations that lie at the first level of elevation, ie the oral base area. Thus, the second and each additional height level elevations out of the first height level orally limited body of the veneer out.
  • the first height level represents a, more preferably concave, surface, namely the oral base of the veneer
  • the second and each further height level represent surveys, in particular the upper ends or ends of surveys, from the concave base with egg - stand out at a certain height.
  • the surface of the inside of the veneer preferably has at least two and at most one hundred height levels.
  • the surface of the inside of the veneer preferably has at least two and at most twenty height levels.
  • the surface of the inside of the veneer has at least two and at most ten height levels.
  • the surface of the inside of the veneer has at least two and at most six height levels.
  • the surface of the inside of the veneer has at least two and at most five height levels.
  • the surface of the inside of the veneer has at least two and at most four height levels.
  • the surface of the inside of the vein has at least two and at most three height levels.
  • the surface of the inside of the veneer has two height levels. In an alternative according to the invention, the surface of the inside of the veneer has three Altitude steps up. In an alternative according to the invention, the surface of the inside of the veneer has four height levels.
  • the surface of the inside of the veneer preferably has at least two height levels.
  • the surface of the inside of the veneer has at most one hundred height levels. In an alternative according to the invention, the surface of the inside of the veneer has at most fifty height levels. In an alternative according to the invention, the surface of the inside of the veneer has a maximum of twenty height levels. In an alternative according to the invention, the surface of the inside of the veneer has a maximum of fifteen height levels. In an alternative according to the invention, the surface of the inside of the veneer has a maximum of ten height levels. In an alternative according to the invention, the surface of the inside of the veneer has at most nine height levels. In an alternative according to the invention, the surface of the inside of the veneer has at most eight height levels.
  • the surface of the inside of the veneer has a maximum of seven height levels. In an alternative according to the invention, the surface of the inside of the veneer has at most six height levels. In an alternative according to the invention, the surface of the inside of the veneer has a maximum of five height levels. In an alternative according to the invention, the surface of the inside of the vein has at most four height levels.
  • the height difference between the first and second height levels is greater than the height differences.
  • the height difference of the at least two height levels is greater than the height difference which arises as roughness through the preparation of a conventional veneer.
  • roughnesses, as present in the insides of prior art veneers do not represent different height levels.
  • the height difference of the at least two height levels is preferably at least 20 ⁇ m. According to the invention, the height difference of the at least two height levels is preferably at least 50 ⁇ m. According to the invention, the height difference of the at least two height levels is preferably at least 60 ⁇ m. According to the invention, the height difference of the at least two height levels is more than 60 ⁇ m. According to the invention, the height difference of the at least two height levels is preferably at least 100 ⁇ m. According to the invention, therefore, the second height level preferably protrudes by at least 100 ⁇ m from the first height level, namely the oral base area. According to the invention, the height difference of the at least two height levels is preferably at least 101 ⁇ m.
  • the height difference of the at least two height levels is more than 100 ⁇ m. According to the invention, it may also be provided that the height difference of the at least two height levels amounts to at least 200 ⁇ m. According to the invention it can also be provided that the height difference of the at least two height levels is at least 0.3 mm. According to the invention it can also be provided that the height difference between the first and the second height level is at least 20 ⁇ m. According to the invention it can also be provided that the height difference between the first and the second height level is at least 50 ⁇ m. According to the invention it can also be provided that the height difference between the first and the second height level is at least 60 ⁇ m.
  • the height difference between the first and the second height level is more than 600 ⁇ m. According to the invention it can also be provided that the height difference between the first and the second height level is at least 100 ⁇ m. According to the invention it can also be provided that the height difference between the first and the second height level is at least 200 ⁇ m. According to the invention can also be provided that the height difference between the first and the second height level is at least 0.3 mm.
  • the height difference between the second and the third height level is at least 20 ⁇ m. According to the invention it can also be provided that the height difference between the second and the third height level is at least 50 ⁇ m. According to the invention it can also be provided that the height difference between the second and the third height level is at least 60 ⁇ m. According to the invention it can also be provided that the height difference between the second and the third height level is more than 60 ⁇ m. According to the invention it can also be provided that the height difference between the second and the third height level is at least 100 ⁇ m. According to the invention, it can also be provided that the height difference between the second and the third height level at least 200 microns. According to the invention it can also be provided that the height difference between the second and the third height level is at least 0.3 mm.
  • the height difference of the at least two height levels, in particular between the first and the second height level is at most 100 mm, in particular at most 10 mm. Veneers with a large height difference between the first and the further height levels can be used in particular with a large positional shift of the tooth to be veneered, since the large height difference can compensate for this shift.
  • the height level with the lowest height ie the oral base area, preferably forms at least 25%, in particular at least 50% of the inner surface.
  • the height level with the lowest height forms at least 60%, in particular at least 70% of the inner surface.
  • the height level with the lowest height forms at least 66% of the inner surface.
  • the height level with the lowest height forms at least 75%, in particular at least 80% of the inner surface.
  • the height level with the lowest height forms at least 85%, in particular at least 87% of the inner surface.
  • the height level with the lowest height forms at least 90% of the inner surface.
  • the lowest altitude altitude level forms at least 91% of the inner surface. In an alternative according to the invention, the height level with the lowest height forms at least 92% of the altitude Inner surface. In an alternative according to the invention, the height level with the lowest height forms at least 93% of the inner surface. In an alternative according to the invention, the height level with the lowest height forms at least 94% of the inner surface. In an alternative according to the invention, the height level with the lowest height forms at least 95% of the inner surface. In an alternative according to the invention, the height level with the lowest height forms at least 96% of the inner surface. In an alternative according to the invention, the height level with the lowest height forms at least 97% of the inner surface. In an alternative according to the invention, the height level with the lowest height forms at least 98% of the inner surface. In an alternative according to the invention, the height level with the lowest height forms at least 99% of the inner surface.
  • the height level with the lowest height forms at most 99.9% of the inner surface.
  • the first height level with the lowest height preferably forms a concavely curved surface
  • the further height levels represent elevations, or the upper ends or ends of the elevations, from the first height level.
  • the second and / or at least one further elevation, which form the height levels, of a veneer according to the invention can be shortened when using the veneer without much effort, that is, the corresponding height levels can be reduced in their distance from the first height level.
  • the shortening can for example be done by grinding the surveys.
  • a difference in the radii of the veneer base and the tooth surface to be veneered can be compensated.
  • Permanent veneers of the prior art are individually adapted to the curvature of the tooth to be veneered. Since the veneers according to the invention are produced according to the invention preferably prefabricated, their concave inner surface usually has a different curvature than the convex outer surface of the tooth. For example, the concave inner surface of the veneer may be more or less curved than the convex outer surface of the tooth to be veneered.
  • a body has three points of contact with a surface that is not necessarily flat, the body lies on a surface. stable.
  • This principle is realized, for example, in a tripod tripod.
  • the inventors of the present invention have now found that even a veneer rests particularly stable on the surface of an individually shaped tooth and thus can be stably fixed to the tooth when the veneer has three points of contact with the tooth. If the points of contact are now formed by different height levels, the veneer can also be fixed exactly and in the desired position on the tooth by changing at least one height level, in particular by shortening at least one height level.
  • a veneer according to the invention with at least two height levels can be fastened firmly, stably and precisely to an individually shaped tooth in a simple manner.
  • a veneer rests particularly stably on a tooth if it has three points of contact with the tooth. Then the veneer can not wobble, tilt or swing.
  • the veneer can be tested on the tooth. If the veneer does not rest stably on the tooth, that is, has more or less than three points of contact with the tooth, the second height level or one or more of the further height levels can be shortened such that the veneer rests on the tooth with three points.
  • the veneer can also be adjusted so that it rests exactly on the tooth, that is in the desired position on the tooth. Then the veneer can be easily attached to the tooth.
  • the second and each further height level are preferably formed as an elevation, or as the upper end of the elevation, out of the first height level.
  • the base area of the inside of the veneer preferably has one to a hundred elevations.
  • the base area of the inside of the veneer preferably has one to twenty elevations.
  • the base area of the inside of the veneer preferably has one to ten elevations.
  • the base area of the inside of the veneer preferably has one to nine elevations.
  • the base area of the inside of the veneer preferably has one to eight elevations.
  • the base surface of the inside of the veneer preferably has one to seven elevations.
  • the base area of the inside of the veneer preferably has one to six elevations.
  • the base area of the inside of the veneer preferably has one to five elevations.
  • the base surface of the inside of the veneer preferably has one to four elevations.
  • the base area of the inside of the veneer preferably has one to three elevations.
  • the base area of the inside of the veneer has one to two elevations.
  • the base surface of the inside of the veneer preferably has two to five elevations.
  • the base area of the inside of the veneer preferably has two to four elevations.
  • the base surface of the inside of the veneer preferably has two to three elevations.
  • the elevations preferably extend together over at most 30% of the surface of the inside of the veneer. According to the invention, the elevations preferably extend together over at most 10% of the surface of the inside of the veneer. According to the invention, the elevations at least 5% of the surface of the inside of the veneer.
  • the elevations are distributed over the surface of the inside of the veneer.
  • the surface of the inside of the veneer has at least two height levels, the first height level with the lowest height forming a concave curved surface having one to three bumps, each of the one to three bumps being the height of the second one third or a fourth altitude level has.
  • the surface of the inside of the veneer has at least two height levels in the upper region, the first height level with the lowest height forming a concavely curved surface having two protrusions, each of the two protrusions being the height of the second, or a third altitude level
  • the surface of the inside of the veneer has a support point in the cervical area, but the support point is not a survey.
  • the base surface of the inside of the veneer preferably has two elevations.
  • the base surface of the inside of the veneer preferably has three elevations.
  • An inventively preferred veneer with two or three elevations, in particular one with three elevations, is also called “tri-pod veneer” or "dipod veneer”.
  • the surface of the inside of the veneer preferably has between two and four height levels, and the first height level with the lowest height forms a concavely curved surface which has three elevations, each of the three elevations the height of the second, third or fourth Height level has. According to the invention, it can be provided that the three elevations have the same height level, ie form the second height level.
  • the three elevations preferably extend together over at most 30% of the surface of the inside of the veneer. According to the invention, the three elevations preferably extend together over at most 10% of the surface of the inside of the veneer. According to the invention, the three elevations preferably extend together over at most 5% of the surface of the inside of the veneer.
  • the three elevations are preferably distributed over the surface of the inside of the veneer.
  • the surface of the inside of the veneer has between two and three height levels, and the first height level with the lowest height forms a concavely curved surface having two elevations, each of the elevations being the height of the second or third Height level has.
  • the two elevations have the same height level, ie form the second height level.
  • the two elevations preferably extend together over at most 30% of the surface of the inside of the Veneers. According to the invention, the two elevations preferably extend together over at most 10% of the surface of the inside of the veneer. According to the invention, the two elevations preferably extend together over at most 5% of the surface of the inside of the veneer.
  • the two elevations are distributed over the surface of the inside of the veneer.
  • Elevations can be formed in any shape of a body.
  • the body forming an elevation protrudes from the oral surface, with the part of the body farthest from the base representing the second or further elevation.
  • the body forming a survey and the oral base can be formed in one piece.
  • the body forming an elevation may alternatively be placed on the oral base.
  • the bump forming body and the oral base may be formed of the same material.
  • the bump forming body and the oral base can be formed of different materials.
  • the elevations are preferably formed as a hemisphere, column, cube, cuboid or pyramid.
  • the elevations are preferably in the form of a hemisphere.
  • the elevations are formed as a pyramid.
  • the elevations are formed as a pillar.
  • the veneer preferably consists of porcelain, composite, ceramic, high-performance ceramics, or plastic, or contains these materials.
  • the veneer preferably consists of porcelain, composite, ceramic, high-performance ceramics, or plastic.
  • the veneer is made of porcelain.
  • the veneer is made of ceramic.
  • the veneer is made of plastic.
  • the veneer consists of high-performance ceramics.
  • the veneer is suitable for attachment to a tooth, in particular to a natural tooth.
  • the device according to the invention in particular the one-part device, is a template for positioning a veneer according to the invention.
  • the template has the dimensioning of a veneer.
  • the inside of the template is worked out like the inside of a veneer according to the invention.
  • the surface of the inside of the stencil has at least two height levels, the first height level with the lowest height forming a concave curved surface having one to three bumps, each of the one to three bumps being the height of the second , a third or a fourth altitude level.
  • the template has elevations at the same position as a veneer according to the invention.
  • the template is made of a low cost material, such as plastic.
  • the template is designed as a stamp and has a handle on the outside.
  • the inventive template allows a simple and accurate positioning of a veneer according to the invention.
  • the best possible positioning of the veneer can be determined with the template.
  • the template is aligned so that it occupies the desired position of the veneer. If necessary, one or more elevations of the template are shortened to achieve a stable hold in the desired position.
  • a fastening material for example a composite, is placed between the template and the tooth. Alternatively, the fastening material can also be applied to the tooth before the template is positioned.
  • the template can be removed from the tooth after positioning. The elevations of the template leave recesses in the fastening material.
  • At least one elevation of the veneer according to the invention can be shortened.
  • the veneer is then attached to the tooth with a second, in particular thin, layer of the fastening material. that the elevations of the veneer are inserted into the recesses of the fastening material.
  • custom-made veneer backs solve two important tasks: First, the leveling of the veneer surface and, secondly, the positioning of the veneer through the exact fit of the veneer side to the individual tooth surface.
  • the template can not only be used for positioning of veneers according to the invention, but also for veneers whose inside is smooth, so have no elevations.
  • the individual tooth surface is adapted flat by the template according to the invention to the veneered Veneerinnenseite.
  • the positioning of the prefabricated veneer then takes place as in the case of an individually produced veneer by exact fitting of the veneer inner side to the aligned tooth surface. With this technique even ultra-thin ceramic veneers can be adhesively bonded without tension.
  • the surface of the tooth is adapted to the underside of the veneer.
  • a fastening material for example a composite
  • the inventive stencil analogous to the inside of the veneer or the veneer itself.
  • the veneer for example a veneer according to the invention, is fastened to this surface with a second layer of composite.
  • any hypomochlion effect can be avoided. This can be caused by the fact that fastening material shrinks during curing and by the elevations different layer thicknesses available. This means that even ultra-thin ceramic veneers can be adhesively bonded without stress.
  • either the individual tooth surface can be assembled or a ready-made veneer backside can be customized.
  • the device is at least two parts. In an alternative embodiment, the device is in two parts.
  • the first part of the device is a template according to the invention and the second part of the device is a veneer, in particular a veneer according to the invention.
  • the first part is a shell-shaped main body, the surface of which has at least two height levels on the inside of the first part, and the second part is a veneer that can be applied to the surface of the outside of the first part.
  • the inside of the first part is designed like the inside of a veneer according to the invention.
  • the described preferred embodiments of a veneer according to the invention are thus also preferred embodiments for the first part of the device.
  • the first part of the device is a base body which, like a veneer according to the invention, can be positioned on a tooth.
  • the base body can be made of a cheap and / or solid material.
  • the second part of the device can be placed on the first part of the device.
  • the second part of the device serves as a veneer for veneering the tooth and the first part of the device.
  • the convex outer surface of the first part is configured so that the concave inner surface of the second part fits exactly on the outer surface of the first part.
  • the second part of the device is a ceramic veneer, in particular a thin ceramic veneer.
  • the outer surface of the first part of the device has elevations and / or depressions as a die and the inner surface of the second part of the device at the same position elevations and / or depressions as a male.
  • the elevations of one part can then be inserted into the recesses of the other part, so that the positioning of the second part of the device on the first part of the device can be made exactly.
  • This embodiment also permits stress-free adhesive attachment of ultrathin ceramic veneers.
  • the present invention solves the underlying technical problem also the provision of a method for producing a device according to the invention, wherein the device is produced by machine, in particular industrially.
  • the present invention solves the underlying technical problem also the provision of a method for manufacturing a veneer according to the invention, wherein the veneer is produced by machine, in particular industrially.
  • At least one veneer according to the invention is manufactured by machine and / or industrially by means of a mold.
  • a conventional method such as casting, pressing or grinding can be used.
  • the person skilled in the art knows which methods he can use for the production and how he applies the methods. These are, for example, processes that are normally used to make individual veneers based on an individual shape.
  • the production method according to the invention has the advantage that particularly thin veneers can be easily produced. Such thin veneers allow the veneers to be attached to the tooth without dissecting or grinding the tooth, without the veneers protruding from the tooth course in the labial direction.
  • the present invention solves the underlying technical problem also the provision of a method for producing at least two devices according to the invention, wherein the at least two devices are made using the same shape.
  • the present invention solves the underlying technical problem also the provision of a method for producing at least two veneers according to the invention, wherein the at least two veneers are made on the basis of the same shape.
  • the manufacturing method according to the invention makes it possible to produce at least two veneers, in particular many veneers, by means of a mold. Thus, only one mold has to be produced, by means of which at least two veneers are produced. This greatly reduces the cost of manufacturing the veneers. Also, by the mechanical or industrial production of the veneers, a better quality of the veneers produced can be produced. Thus, the veneers according to the invention can be produced inexpensively as a mass product of industrial quality.
  • the present invention solves the underlying technical problem also the provision of a kit containing at least two veneers according to the invention.
  • the present invention solves the underlying technical problem also the provision of a kit containing at least two devices according to the invention.
  • the present invention also solves the underlying technical problem of providing a kit comprising at least one veneer according to the invention and a template according to the invention.
  • the present invention also solves the technical problem underlying the provision of a kit comprising at least one veneer and a template according to the invention.
  • kits are understood to mean a "kit of parts", that is to say a composition containing at least two veneers according to the invention.
  • the kit preferably contains an instruction for use.
  • the kit preferably contains a plurality of devices according to the invention.
  • the kit preferably contains a plurality of devices according to the invention, wherein devices of different size, shape and / or curvature are contained in the kit.
  • devices which have different positions of the elevations are preferably present in the kit.
  • devices are present in the kit, wherein the height levels of the elevations of the different devices are different.
  • the kit preferably contains a plurality of veneers according to the invention.
  • the kit preferably contains a plurality of veneers according to the invention, wherein the kit contains neons of different size, shape and / or curvature.
  • veneers are present in the kit which have different positions of the elevations.
  • veneers are present in the kit, the height levels of the elevations of the different veneers being different.
  • a kit according to the invention makes it possible to select a veneer from the kit which corresponds in shape and size approximately to the tooth surface to be veneered.
  • the present invention also relates to the use of a device according to the invention for attachment to a tooth, in particular for permanent attachment to a tooth.
  • the present invention also relates to the use of a veneer according to the invention for attachment to a tooth, in particular for permanent attachment to a tooth.
  • the devices or veneers of the present invention may also be used as a temporary or replacement of the mock-up for patient demonstration and accurate planning.
  • a mock-up can be prepared. This is the simulation of the planned changes with composite in the mouth without pretreatment of the tooth. The applied material can then easily be removed again. The composite is either applied free by the dentist or with a thermoforming rail or a silicone key, which was previously prepared by a dental technician using a wax-up. This allows the treatment goal to be simulated and checked.
  • a device according to the invention or a veneer according to the invention can be used in an advantageous manner.
  • the present invention also solves the technical problem on which it is based, the provision of a method for fastening a veneer according to the invention to a tooth, comprising the steps of a) shortening at least one of the elevations of a veneer according to the invention, so that the veneer can be positioned on the tooth in a swing-free manner, and b) attaching the veneer to the tooth with a fixation material.
  • the method according to the invention can be used on prepared or unprepared teeth.
  • the shortening of the veneer can be done for example by grinding or cutting off a section of at least one survey.
  • the at least one elevation of the veneer is shortened by a length in step a), so that the veneer contacts the tooth at three points when placed on the tooth.
  • two elevations can be shortened so that the veneer rests with two elevations and at one point with the base surface, or that the veneer rests with three elevations.
  • All existing surveys can also be shortened. It can also be at least one survey completely removed, which corresponds to a maximum reduction.
  • step b) basically follows the method of the prior art.
  • suitable fastening materials for example adhesives, from the prior art are known to the person skilled in the art.
  • the veneer is attached to the tooth temporarily, ie reversibly, before the final attachment in step b).
  • the temporary fixation is to check the correct positioning of the veneer and to control the reduction of the at least one elevation in step a).
  • the temporary attachment of the veneer to the tooth can be done by a variety of attachment materials.
  • a solid or liquid adhesive may be used.
  • adhesive is suitable for example silicone.
  • the veneer temporarily on Fix the tooth ie temporarily fix the veneer to the tooth or temporarily press the veneer against the tooth.
  • the veneer is preferably fixed in steps a) and b) by a device according to the invention.
  • the present invention solves the underlying technical problem also the provision of a method for attaching a veneer, in particular a Veneer veneer according to the invention to a tooth, comprising the steps: a) shortening at least one of the elevations of a template according to the invention, so that the template without swinging on the B) attaching the template to the tooth with a fixation material, c) removing the template from the tooth and fixation material, d) attaching the veneer to the tooth with a second fixation material.
  • the present invention also solves the underlying technical problem of providing a method of attaching a device according to the invention comprising a first part and a second part to a tooth, comprising the steps of: a) truncating at least one of the elevations of the first part of the device; b) attaching the first part to the tooth with a fastening material, and c) attaching the second part of the device to the first part of the device.
  • the present invention solves the underlying technical problem also the provision of a device for fixing at least one veneer, in particular a veneer according to the invention, when inserting and attaching to a tooth, wherein the device has a holder for at least one veneer, which with a hinge a holder for attaching the device is connected in the mouth area.
  • the holder for fastening the at least one veneer is preferably designed as a card-shaped surface.
  • the holder for fastening the device in the mouth region is preferably designed as a card-shaped surface.
  • a card-shaped holder for the veneer is slightly curved in order to better absorb the veneer can.
  • the hinge also known as the "memory hinge” makes it possible to adjust the position of the two brackets relative to one another about the hinge axis, thus enabling the hinges to be unfolded and folded.
  • At least part of a surface of the holder for attaching at least one veneer is preferably coated with an adhesive material.
  • the adhesive material allows the fastening, in particular the reversible fastening, of the veneer to the device.
  • at least part of a surface of the holder for fastening the device in the mouth region is coated with an adhesive material.
  • the adhesive material allows the attachment, in particular the reversible fastening, of the device in the oral area.
  • At least one suction cup is attached to a surface of the holder for attaching at least one veneer.
  • the suction cup allows the veneer to be attached to the device.
  • At least one suction cup is attached to a surface of the holder for fastening the device in the mouth region.
  • the suction cup allows the attachment of the device in the mouth area.
  • the device is preferably made of plastic. According to the invention, the device is preferably a disposable article.
  • a veneer in particular a veneer according to the invention, can be positioned on a tooth and fixed in three dimensions. As a result, the veneer can be returned to the exact intended position on the tooth after shortening the elevations.
  • the device for fixing the at least one veneer can be formed from a thermoformed rail. On one of the too A deep-drawing rail is manufactured using the treated jaw manufactured model. Then this is cut to size so that on each tooth on which a veneer is planned, a memory hinge is created.
  • the arch can be temporarily fixed lingually or palatally, for example with adhesive dots, suction cups and / or composite.
  • the present invention also relates to the use of a device according to the invention for fastening at least one veneer, in particular at least one veneer according to the invention.
  • the present invention also relates to a method for attaching a veneer, in particular a veneer according to the invention, in which a device according to the invention is used.
  • the method includes the steps of: a) attaching the device to the tooth in the unfolded state and attaching the veneer to the tooth in the desired position, b) collapsing the device so that the retainer is pressed against the veneer to secure the veneer and C) unfolding the device so that the labial area of the tooth is no longer obscured by the veneer; d) applying a fixation material to the labial surface of the tooth, e) collapsing the device so that Veneer rests again on the desired position on the tooth and is connected to the tooth via the attachment means, f) removing the device from the veneer and from the oral cavity.
  • the veneer can be adjusted in step c) after the device has been unfolded by shortening at least one protrusion. Before the fastening material is applied in step d), the device can be opened and closed several times to control the positioning of the veneer.
  • the holder for fastening the device in the mouth region is preferably fastened to the tooth, in particular to the oral surface of the tooth.
  • the methods of securing the veneers and using the veneers are preferably not surgical or therapeutic.
  • the methods for securing the veneers and the use of the veneers are preferably purely aesthetic measures.
  • the methods for attaching the veneers and the use of the veneers are preferably cosmetic measures.
  • FIG. 1 shows two veneers according to the invention and one day vein from the prior art in side view.
  • Figure 1 a shows a veneer according to the invention with two height steps in, wherein the second height level is formed by three semicircular elevations.
  • FIG. 1 b shows a veneer according to the invention with three height levels, wherein the second and the third height level are formed by a respective cuboid elevation.
  • FIG. 1c shows a prior art veneer with only one height level.
  • FIG. 2 shows further views of veneers.
  • FIG. 2 a shows a veneer according to the invention in a view of orally.
  • FIG. 2b shows a day veneer in the view of orally.
  • Figure 2c shows a veneer in view of labial.
  • FIG. 3 shows a veneer according to the invention when adapted to a tooth.
  • FIG. 4 shows a veneer according to the invention attached to a tooth.
  • FIG. 5 shows a device according to the invention for fixing at least one veneer with a veneer to a tooth.
  • FIG. 5a shows the device in the unfolded position.
  • FIG. 5b shows the device in the folded position.
  • FIG. 6 shows a two-part device according to the invention attached to a tooth.
  • FIG. 7 shows the application of a veneer according to the invention with the aid of a template according to the invention.
  • FIG. 1a shows a non-scale alternative embodiment of a veneer (100) according to the invention.
  • the veneer has a convex curved outside, also called labial surface (20).
  • the labial surface (20) is adapted in shape and color of the desired veneer.
  • the veneer has a concavely curved inside, also called oral base (10). The distance between the oral base (10) and labial surface (20) at a particular point of the veneer (100) determines the thickness of the veneer (100) at that point. Also, the occlusal end (30) of the veneer (100) is marked.
  • the oral base (10) forms the first height level (11) of the veneer.
  • Three hemispherical elevations (15) protrude from the oral base.
  • the elevations (15) are made of the same material as the rest of the veneer, since the veneer was made in one piece in the present case.
  • the elevations (15) can also be applied subsequently in the production of a veneer (100) according to the invention and consist of a different material or a different material composition than the veneer (100).
  • the elevations (15) are the same height in the present case, so that their ends form the second height level (12).
  • one or more of the elevations (15) can be shortened to a desired height level, for example by grinding.
  • FIG. 1 b shows a second non-scale alternative embodiment of a veneer (100) according to the invention.
  • the veneer (100) again has a labial surface (20), an oral surface (10) and an occlusal end (30).
  • the oral surface (10) forms the first height level (11).
  • the end of a lower parallelepiped (15) forms the second height level (12).
  • the end of a higher cuboid elevation (16) forms the third height level (13).
  • one or both of the bumps (15, 16) can be shortened to a desired height level.
  • Figure 1c does not show to scale a prior art day vein (200) as disclosed, for example, in US 2005/0227204 A1.
  • the veneer (200) again has a labial surface (20), an oral surface (10) and an occlusal end (30).
  • the oral surface (10) forms the only height level (11) of the veneer. There is no further height level that could be shortened to fit the veneer (200) to the tooth.
  • the illustrated veneer (200) also represents the veneer main body of a veneer (100) according to the invention, wherein a veneer (100) according to the invention additionally has at least one second height level which is formed by at least one protrusion out of the oral base area (10).
  • FIG. 2 a shows a non-scale alternative embodiment according to the invention of a veneer (100) seen orally.
  • the oral surface (10) of the veneer (100) can be seen.
  • the oral surface (10) again forms the first height level (11).
  • On the oral surface (10) three hemispherical elevations are distributed (15), which protrude from the oral surface (10).
  • the upper ends of the three elevations (15) form the second height level (12) of the veneer (100).
  • the occlusal end (30) of the veneer is marked.
  • one or more of the elevations (15) can be shortened to a desired height level.
  • FIG. 2 b again does not show to scale a day vein (200) from the prior art as compared to FIG. Game is disclosed in US 2005/0227204 A1.
  • the veneer (200) again has an oral surface (10) with an occlusal end (30). In the veneer (200), the oral surface (10) is completely smooth. The oral surface (10) forms the only height level (11) of the veneer. There is no additional height level that could be shortened to fit the veneer (200) to the tooth.
  • the illustrated veneer (200) also represents the veneer main body of a veneer (100) according to the invention, wherein a veneer (100) according to the invention additionally has at least one second height level which is formed by at least one protrusion out of the oral base area (10).
  • FIG. 2c does not show to scale the alternative embodiment according to the invention of the veneer (100) from FIG. 2a, seen from a labial point of view.
  • the oral surface (10) with an occlusal end (30) can be seen, which forms the first height level (11).
  • the labial surface (20) can be seen, which covers two elevations, so that only one elevation (15) can be seen, whose upper end forms part of the second height level (12).
  • Figure 3 does not show to scale an alternative embodiment of a veneer (100) according to the invention used for veneering a tooth (50).
  • Enamel (51), dentin (52) and the pulp (53) of the tooth (50) are shown.
  • the gums (54) can also be seen.
  • the tooth (50) is not ground, that is, the substance at the region of the tooth (50) to be veneered is not reduced. Nevertheless, the veneer (100) can be accurately and stably attached to the tooth (50).
  • the veneer Since the veneer is very thin, so the distance between the oral surface (10) and labial surface (20) is very low and the elevations (15) has a second height level (12) form only a slight difference in height to the first height level (11), the veneer (100) can be attached to the unground tooth (50) without the veneer protruding significantly, especially in comparison to the labial surface of the adjacent teeth.
  • Figure 4 does not show to scale an alternative embodiment of a veneer (100) according to the invention used to veneer a tooth (50).
  • the labial surface (20) of the veneer (100) serves for veneering.
  • the oral surface (10) which forms the first height step (11) of the veneer (100) is connected to the labial surface of the tooth (50) via a fastening material (60).
  • Two different elevations (15, 16) form the second and third height levels (12, 13).
  • a preferred third survey can not be seen because it is obscured by the first survey (15).
  • the elevations (15, 16) rest on the tooth surface and thus position the veneer (100) at a desired distance from the tooth (50).
  • the protuberances prevent the veneer (100) from swinging when attached to the tooth (50), which could result in improper positioning of the veneer (100).
  • the occlusal end (30) of the veneer (100) is designed as an incisal edge.
  • FIG. 5 does not show to scale a device (70) according to the invention for positioning a veneer (100) on a tooth (50).
  • the tooth (50) is ground in the present case, but this does not necessarily have to be the case.
  • the device includes a hinge (71), a bracket (72) for securing the device (70) in the oral area, and a bracket (73) for securing a veneer (100).
  • the holder (72) is reversibly attached to the oral side of the tooth (50) via an adhesive material (80).
  • the veneer (100) is also reversible via an adhesive material its labial surface (20) attached to the holder (73). You can see a survey (15) of the veneer whose end forms the second height level (12).
  • FIG. 5a shows the device in unfolded position. In this position, if necessary, the labial surface of the tooth (50) can be processed. Also, a survey, for example, the survey shown (15), if necessary, be shortened.
  • the veneer (100) is pressed against the tooth in a certain position. The position is determined and maintained by the device (70) in the longitudinal and vertical directions. The position is also maintained when the device (70) is folded over the hinge (71), the tooth (50) and / or protuberance (15) are machined, and then the device (70) is closed again. Thus, the once selected positioning of the veneer (100) can be taken even when interim processing again.
  • the distance between the veneer (100) or certain areas of the main body of the veneer (100) to the tooth (50) can be changed by shortening a survey (15) and thus a second or further height level (12).
  • attachment material (60) may be applied to the labial tooth surface of the tooth (50) and / or the oral surface of the tooth Veneers (100) are applied.
  • the device (70) is closed again via the hinge (71).
  • Figure 5b shows the device (70) in this closed position.
  • the veneer (100) is connected to the tooth (50) via the attachment material (60).
  • the veneer (100) has two or three elevations (15)
  • the veneer (100) is stored in a particularly stable manner since it then has three contact points on the tooth (50).
  • the veneer (100) can rest on these two elevations (50) and a portion of the oral surface (10), with three elevations (15), the veneer (100) can rest on these three elevations (15) ,
  • Figure 6 does not show to scale an alternative embodiment of a two-piece device (100) according to the invention used to veneer a tooth (50).
  • the second part (102) of the device (100) serves as a veneer for veneering.
  • the first part (101) of the device (100) is connected via a fastening material (60) to the labial surface of the tooth (50).
  • Two different elevations (15, 16) form the second and third height levels (12, 13).
  • a preferred third survey can not be seen because it is obscured by the first survey (15).
  • the elevations (15, 16) rest on the tooth surface and thus position the second part (102) of the device (100) at a desired distance from the tooth (50).
  • the protuberances prevent the second part (102) from swinging when attached to the tooth (50), which could result in improper positioning of the veneer (101).
  • the second part (102) is placed on the first part (101) and fixed thereto, for example, by a thin film of a fixing material (103).
  • the Provisionsae positioning is about a recess (111) in the first part (101) and a survey (112) second part (102), which fit exactly into each other, guaranteed.
  • the occlusal end (30) of the veneer (101) is designed as incisal edge.
  • FIG. 7 does not show to scale the application of a veneer according to the invention with the aid of a template according to the invention.
  • Figure 7a shows the template (200) positioned on a tooth (50).
  • a mounting material Between template (200) and tooth (50) is a mounting material (40). Two elevations (15, 16) of the template (200) lie directly on the tooth (50). After removal of the template (200) from the tooth (50), the protrusions (15, 16) leave recesses (15a, 16a) in the mounting material (40). This is shown in FIG. 7b.
  • the recesses (15a, 16a) serve to position a veneer (100) on the tooth (50).
  • the veneer (100) has elevations (15b, 16b) in the same place as the template (200), which can be inserted into the recesses (15a, 16a). This is shown in FIG. 7c.
  • the veneer (100) may be secured to the tooth (50) with a second thin layer of fastener material (42).

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne des facettes prothétiques destinées à être fixées de manière durable sur des dents, des procédés de production desdites facettes prothétiques, des procédés et dispositifs de fixation des facettes prothétiques, l'utilisation de ces dernières ainsi que des kits contenant les facettes prothétiques selon l'invention, ainsi que d'autres applications et formes de réalisation desdites facettes prothétiques.
PCT/EP2010/002167 2009-04-07 2010-04-07 Facette prothétique pouvant être produite à l'échelle industrielle, destinée à être fixée de manière durable sur une dent WO2010115610A1 (fr)

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DE102009017450A DE102009017450A1 (de) 2009-04-07 2009-04-07 Industriell herstellbares Veneer zur dauerhaften Befestigung an einen Zahn
DE102009017450.8 2009-04-07

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WO2010115610A1 true WO2010115610A1 (fr) 2010-10-14

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GB2488967A (en) * 2011-01-11 2012-09-19 Nobel Biocare Services Ag Ceramic tooth veneer
EP2762102A1 (fr) * 2013-01-31 2014-08-06 Coltène/Whaledent AG Elément de facette dentaire
RU2606272C1 (ru) * 2015-08-19 2017-01-10 Валентина Сергеевна Кондратьева Способ эстетической реставрации зубов

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