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WO2011032690A2 - Facette et procédé de réalisation d'une facette - Google Patents

Facette et procédé de réalisation d'une facette Download PDF

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Publication number
WO2011032690A2
WO2011032690A2 PCT/EP2010/005666 EP2010005666W WO2011032690A2 WO 2011032690 A2 WO2011032690 A2 WO 2011032690A2 EP 2010005666 W EP2010005666 W EP 2010005666W WO 2011032690 A2 WO2011032690 A2 WO 2011032690A2
Authority
WO
WIPO (PCT)
Prior art keywords
veneer
ceramic element
ceramic
tooth
intermediate layer
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2010/005666
Other languages
German (de)
English (en)
Other versions
WO2011032690A3 (fr
Inventor
Andreas Dmoch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2011032690A2 publication Critical patent/WO2011032690A2/fr
Anticipated expiration legal-status Critical
Publication of WO2011032690A3 publication Critical patent/WO2011032690A3/fr
Ceased legal-status Critical Current

Links

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
    • A61C13/09—Composite teeth, e.g. front and back section; Multilayer teeth
    • 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
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/15—Compositions characterised by their physical properties
    • A61K6/16—Refractive index
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/807—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising magnesium oxide

Definitions

  • the invention relates to a veneer and a method for producing a veneer.
  • dental veneers have been sought-after on the patient side for some years, particularly broken or severely worn teeth, teeth with large, unsightly plastic fillings, discolored teeth, gaps between the anterior teeth, teeth of varying sizes, tooth position corrections, local or generalized hard tissue hypoplasia or texture problems as well as to the construction of functional surfaces (front canine guidance) and to increase the dental stability, for example after root canal treatments and crown fractions, to treat or use.
  • the veneers used by the dentists for treatment are basically subdivided into veneers with dissection of the tooth and veneers without dissection.
  • veneers with or without preparation of the tooth are generally produced in a ceramic layer in the pressing or layer method. During the pressing process, the
  • a negative mold in particular a tooth to be treated.
  • the final color effect results from the combination of the veneer ceramic with the individually selected color of the fastening material.
  • veneers are usually used on disco- borated teeth, in practice, these veneers very often present par- ling problems after gluing the veneers, which are only limited in advance by so-called try-in pastes (try-in pastes) Glycerine pastes provided by the manufacturers of luting composites, colored in the color of the composites available for fixing, intended to simulate in advance the color effect of the composites on the veneer when attached to the tooth; Pastes can be rinsed off again with water) when trying on the veneer.
  • try-in pastes try-in pastes
  • Non-prep veneers have the additional drawback from the technical point of view that the non-contoured aprismatic enamel surface (in deciduous and gingival third permanent teeth is the uppermost enamel layer to a depth of 0.02 to 0.22 average mm prismless; conditioning a prismless enamel yields an etching pattern of type 3 which shows no prism morphology; a type 3 etching pattern offers little retention to plastic), resulting in a poorer etch pattern in the conditioning of the tooth to be treated and thereby a poorer composite between ceramic and adhesive (which ultimately hardens to a plastic) is formed when gluing the ceramic.
  • the veneer has at least one surface ceramic element, at least one opaque intermediate layer and at least one base ceramic element, so that ultrahigh optical properties are ultimately achieved by the multi-part design with appropriate choice of materials and color matching.
  • the base ceramic element acts as a kind of carrier layer on which ultimately the opaque intermediate layer and the surface ceramic element are arranged in order to produce a certain visual impression. Due to the construction of a veneer by means of at least these three components disturbing gaps, ie material - recesses, and material reductions or discoloration can thus be covered so that before a defined color background, then the at least one surface ceramic ultimately adapted without much difficulty due to the first two layers can be to the optical desire.
  • a three-part veneer namely consisting of a surface ceramic element, an opaque intermediate layer and a base ceramic element, which has a maximum thickness which is not greater than 0.5 mm
  • the maximum total thickness of the veneer being one Value from the group may be 0.50, 0.45, 0.40, 0.35, 0.30 mm, so that the maximum total thickness of the veneer may be 0.50 mm or 0.45 mm or 0.40 mm or 0.35 mm or 0.30 mm. That is, all maximum total veneer thicknesses are from 0.30 mm to 0.50 mm.
  • the very thin maximum total thickness of the veneer is achieved in that the layer thickness of the opaque intermediate layer is in the range of 0.1 mm to 0.3 mm.
  • the opaque intermediate layer is either a lime ceramic or a spray ceramic and is thus applied by means of painting, for example pilling, or spraying (painting method or spraying method).
  • the term or constituent of the terms “ceramic” is also to be understood as meaning glasses, glass ceramics and, of course, ceramics as such, glass ceramics in particular being likely to be used here.
  • the intermediate layer applied to the base ceramic element has the opacity of the ceramic reinforcing ingredients such as titanium oxide and tin oxide (for example, and in particular Fa. Degudent, Duceragold, Kiss Opal, White Surface) at the same time support the basic color of the restoration.
  • the ceramic reinforcing ingredients such as titanium oxide and tin oxide (for example, and in particular Fa. Degudent, Duceragold, Kiss Opal, White Surface) at the same time support the basic color of the restoration.
  • the surface ceramic element has the transparency (complete light transmittance) and translucency (partial light transmittance) reinforcing ingredients whose light-optical properties allow the naturalness of the tooth to be restored.
  • the base ceramic element and / or the surface ceramic element is adapted to the color or are to be treated tooth to give a particularly high natural visual impression.
  • the color matching is realized by means of a spectral analysis in order to also take into account different light conditions and in this way to ensure a very high accuracy of the absorptions and reflections of the individual wavelengths.
  • the layer thickness of the base ceramic element and / or the surface ceramic element is in the range of 0.1 mm to 0.3 mm and that of the intermediate layer in the range of 0.1 mm to 0.3 mm ,
  • the ceramic of the base ceramic element is a pressed ceramic, for example Cergo (Degudent), since substrates which are so reproducible in quality and in the optical property are also suitable for a plurality of veneers can be produced in a case of treatment.
  • the ceramic of the intermediate layer is an opaque matrix ceramic (for example and in particular Fa. Degudent, Duceragold, White Surface) or injection ceramics (for example and in particular Fa. Degudent, Duceragold, Kiss Opal), which is applied by means of a spray gun (for example and in particular by ITW Industrial Finishing, ITW SURFACES ET FINITIONS DEVILBISS VIPER) by means of a paint process or by spraying.
  • a spray gun for example and in particular by ITW Industrial Finishing, ITW SURFACES ET FINITIONS DEVILBISS VIPER
  • the ceramic of the surface ceramic element is a layered ceramic (for example, and in particular Fa. Degudent, Duceragold, Kiss Base), since individual adaptations to the treatment case can be carried out specifically according to the optical requirements.
  • additional effect masses for example, and in particular Fa. Degudent, Duceragold, Kiss Power
  • the basic color shade is supported and the natural enamel appearance are burned in the surface layer.
  • the layer thickness of the base ceramic element in the area of the vestibular-cervical and incisal-palatal preparation margins runs to the surface, in other words that within these limits the ceramic of the intermediate layer and the ceramic of the surface ceramic element is the ceramic of the basic Overlay ceramic element and in the corresponding edge regions a flowing and thus natural appearing transition from surface ceramic element, intermediate layer to base ceramic element to natural tooth can take place.
  • the outer tooth-facing layer, which is placed in use on a tooth to be treated, of the base ceramic element of the veneer is fixed by means of a transparent adhesive to the tooth.
  • the adhesive which is usually chemically hardening in the case of thicker layer veneers because of insufficient light transport, can also be purely light-curing in the novel veneers according to the invention, which allows the advantage of the longer processing time.
  • the adhesive is light-curing, since the curing as such by means of special optical fibers and the application of appropriate wavelengths practice, since in this way a secure bond between the tooth to be treated and the veneer or the base ceramic element of the Veneers can take place.
  • the use of a transparent adhesive is advantageous since detrimental optical discoloration, in particular yellowing, can not be observed as strongly with transparent adhesives as with colored adhesives.
  • the surface of the surface ceramic element has a tooth-typical rheological surface structure, so that a very natural overall impression can be realized in this respect.
  • the base ceramic element is constructed.
  • the usually prepared tooth is blocked out on a model and a preparation margin is exposed.
  • the Bonding necessary area on the prepared tooth surface is produced by a special spacer lacquer, which does not affect the accuracy of the edge closure.
  • a base ceramic element is modeled on the model tooth made of wax and embedded for the pressing process in a refractory and sufficiently stable investment material, pressed and taken care of on the model tooth.
  • the evaluation of a digital color analysis of the contoured tooth surface, which serves as a background for the veneer, as well as a digital color analysis of the reference neighboring teeth determined the selection of the stain paint for the intermediate layer.
  • the selected opacity of the paint or spray paint with its optical properties ensures that the tooth background has no influence on the color effect of the surface ceramics element and thus of the entire veneer.
  • the Malkeramik or spray ceramic is selected according to the digital color analysis so that the color effect of the layered ceramic of the surface ceramic element is predictably guaranteed and that the veneer has the desired tooth color after gluing.
  • the intermediate layer can be additionally prepared with special effect materials based on ceramics. Here are especially pigmented masses used, whose color saturation provides the basis for the color to be achieved.
  • the surface sink is used as an "optical space" for the color build-up of the surface ceramic by the creation of a surface sink in the incisal tooth portion.
  • the surface of this depression is "optically dense" due to the opaque interlayer.
  • the model pair is set in a chewing simulator (articulator).
  • the patient's chewing movements are reproducible after adjustment of the patient's articular path data.
  • an optimal shape of the restoration is achieved.
  • the surface is sanded to natural specifications.
  • the structures and reflection facets thus formed on the surface imitate the natural tooth surface.
  • FIG. 3 sketchy a veneer consisting of surface ceramic (3), intermediate layer (2) and base ceramic element (1) and comprising a Befest Trentskomposit (7), which is pressed thin when glued to a microfilm;
  • FIG. 4 - represents the veneer applied to the damaged tooth
  • FIG. 5 - that on a not damaged
  • Tooth-applied veneer represents.
  • FIG. 1 shows in sketch form a perspective view of an incisor which is slightly broken off at its tip and thus has a reduced enamel coat.
  • a removal of the aprismatic enamel up to a depth of 0.2 mm or a vestibular contour is performed vestibularly.
  • the contact point areas of the prepared tooth to its adjacent teeth remain preserved, unless approximale plastic fillings are included in the veneer supply.
  • a 0.2 mm deep cavity is created, which creates space for discolored teeth or a desired color improvement for the color structure of surface ceramics ("optical space").
  • a base ceramic element 1 is applied to the left side to the lower tip and covered with an intermediate layer (2) (see Figure 2), to attach in connection thereto the surface ceramic element 3 shown in Fig. 3, wherein moreover Principle of multi-part, in particular three-part, can be seen.
  • the base ceramic element 1 is made like a thin shell with a corresponding edge weft to the residual tooth. A corresponding point here is an edge profile which has already been machined into the base element and incised in the base element. Care must be taken in the layer thickness of the base element 1 that sufficient space remains available for the subsequent completion of the tooth form. In the case of broken teeth, as in FIG.
  • the incisal area, which is actually filled with the opaque intermediate layer, is to be kept free in such cases for the optically natural design of the surface ceramic.
  • An attachment composite 7 (for example, and in particular, Dentsply Calibra Esthetic Resin Cement Base Medium) is pressed into a microfilm when pasted.
  • FIG. 4 shows in perspective once again know that the gesarate veneer consists of the base ceramic element 1, the intermediate layer 2 and the surface ceramic element 3, which achieved a very natural impression due to the respective adjustment of the optical properties of all elements.
  • FIG. 5 the entire veneer of the base ceramic element 1, the intermediate layer 2 and the surface ceramic element 3 is shown on a not broken tooth. An optical space is not necessary in this case, since the tooth background is preserved down to the insidia space and the natural one

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Dentistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une facette, en particulier réalisée selon un procédé décrit dans une des revendications 16 à 20, cette facette comprenant au moins un élément en céramique de base (1), une couche intermédiaire (2) opaque et au moins un élément en céramique de surface (3), l'épaisseur totale maximale de la facette présentant une valeur du groupe composé de 0,50, 0,45, 0,40, 0,35, 0,30 mm et/ou la couche intermédiaire (2) opaque étant appliquée par un procédé de peinture ou par un procédé d'injection et/ou l'épaisseur de la couche intermédiaire (2) opaque étant comprise entre 0,1 mm et 0,3 mmm.
PCT/EP2010/005666 2009-09-17 2010-09-15 Facette et procédé de réalisation d'une facette Ceased WO2011032690A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009041630 2009-09-17
DE102009041630.7 2009-09-17

Publications (2)

Publication Number Publication Date
WO2011032690A2 true WO2011032690A2 (fr) 2011-03-24
WO2011032690A3 WO2011032690A3 (fr) 2012-05-31

Family

ID=43705873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/005666 Ceased WO2011032690A2 (fr) 2009-09-17 2010-09-15 Facette et procédé de réalisation d'une facette

Country Status (2)

Country Link
DE (1) DE102010045420A1 (fr)
WO (1) WO2011032690A2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186626A (en) 1987-05-13 1993-02-16 Asami Tanaka Dental Enterprises Metal-porcelain dental bridges

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1330169C (fr) * 1987-05-13 1994-06-14 Asami Tanaka Feuille metallique pour plombages a base de metal et de porcelaine
EP0599187B1 (fr) * 1992-11-25 1998-09-30 Vita Zahnfabrik H. Rauter GmbH & Co KG Procédé de fabrication de prothèses dentaires à base de céramiques
US20070196788A1 (en) * 2005-11-18 2007-08-23 Dentsply International Inc. Translucent veneering for a dental prosthesis formed by a press to metal process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186626A (en) 1987-05-13 1993-02-16 Asami Tanaka Dental Enterprises Metal-porcelain dental bridges

Also Published As

Publication number Publication date
DE102010045420A1 (de) 2011-04-07
WO2011032690A3 (fr) 2012-05-31

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