EP1158926A1 - Prothese dentaire artificielle - Google Patents

Prothese dentaire artificielle

Info

Publication number
EP1158926A1
EP1158926A1 EP00910714A EP00910714A EP1158926A1 EP 1158926 A1 EP1158926 A1 EP 1158926A1 EP 00910714 A EP00910714 A EP 00910714A EP 00910714 A EP00910714 A EP 00910714A EP 1158926 A1 EP1158926 A1 EP 1158926A1
Authority
EP
European Patent Office
Prior art keywords
tooth
sleeve
dental
stump
tooth stump
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.)
Withdrawn
Application number
EP00910714A
Other languages
German (de)
English (en)
Inventor
Thomas Prieshoff
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 EP1158926A1 publication Critical patent/EP1158926A1/fr
Withdrawn legal-status Critical Current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
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • 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
    • A61C5/30—Securing inlays, onlays or crowns
    • 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
    • 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

Definitions

  • the invention relates to an artificial denture in the form of a composite restoration.
  • the conventional way of restoring a tooth is to take an impression of the tooth that has been prepared (ground) in the oral cavity in order to (usually) make a model out of plaster.
  • the ground / prepared tooth is provided with a temporary plastic (a provisional crown) until the denture is completed.
  • the dental technician then uses the plaster model to manufacture the dentures from alloys, titanium, ceramic, plastic or a combination of different materials.
  • Facing crowns have a metallic base that is completely or partially covered with ceramic or plastic.
  • the different crowns (types) are usually made by wax modeling the crown on the plaster model.
  • the wax object is then embedded (in special refractory investment materials), burned out by heating and the resulting hollow mold is filled with ceramic or metal (in liquid form) using the casting or pressing process. After devesting the blank, the resetting and fitting / fitting takes place on the (plaster) model stump.
  • custom-fit crowns can be made in the dental laboratory, provided that all individual work steps are carried out with high precision and without errors. be performed. However, it is not always guaranteed that the crown can also be fitted in the oral cavity on the prepared tooth stump with the required accuracy of fit. Even the smallest inaccuracies in the taking of the impression, the modeling and the dental manufacture of the crown can lead to inaccuracies in fit and clinical problems.
  • a lack of marginal closure and inadequate fit of the crown result in an accelerated washing out of the fastening material from the joint between the tooth stump and the crown.
  • Cost-intensive new products are therefore often required to produce a precisely fitting crown, which is characterized by a sufficiently small joint gap and a precise fit on the ground tooth stump.
  • DE 196 28 930 C1 discloses a method for producing a dental prosthesis, in which a dental prosthetic item in the form of a crown core is modeled on a tooth stump model, the crown core being at least partially veneered on the outside with a dental plastic or a dental ceramic.
  • this method has the disadvantage that it can only provide the dental prosthetic item in collaboration with a dentist and a dental laboratory, because the entire veneer of the crown core cannot be produced by the dentist, but only by a dental laboratory with very great expense.
  • a dental prosthesis crown made of mineral composite and its production is known from DE 36 04 059 A1.
  • the dental prosthesis crown consists of a composite of an industrially prefabricated mineral outer hollow cap, which approximates the shape, layer thickness and color of the natural tooth enamel and an inner mineral dentine substitute material.
  • the dental prosthesis crown is created with the internal fit on the ground tooth stump by filling the crown cap selected from an assortment with the mineral, plastic dentin replacement material, placing the filled cap on the insulated tooth stump and its model, removing and modeling the excess that has escaped and heating the enamel replacement cap with molded dentine substitute to the required melting or sintering temperature.
  • the production of a dental prosthesis crown known from DE 36 04 059 A1 is also very complicated and therefore still cost-intensive and does not lead to the desired reliable dental prosthesis.
  • the invention is based on the idea of using an industrially prefabricated, fabricated tooth replacement sleeve (crown cap made of dental material, preferably plastic), which is modeled on the natural tooth in anatomical shape, color and size.
  • the treating doctor is not only provided with a single set of dentures, but a whole range of incisors, canines and molars for the lower and upper jaw in a wide variety of designs, sizes and colors. It makes sense that there are several of each denture sleeve in stock within the range.
  • Such a ready-made dental prosthesis sleeve either has an internal recess (hollow) from the outset, the internal dimensions of which are larger than a conventional tooth stump.
  • the inner recess (hollow) is created by grinding.
  • a tooth replacement sleeve with an inner recess is placed on the tooth stump, the space between the tooth replacement sleeve and the tooth stump being filled with a plastically deformable dental material, so that finally an individual, precisely fitting tooth replacement is provided, which can be fitted with conventional ones Dental materials and instruments can be integrated into the dentition without the need for complicated mechanical equipment.
  • the provision of the artificial dentures according to the invention or the composite restoration according to the invention can be made directly in the patient's oral cavity without taking an impression, making a model, etc.
  • the exact shape of the inside of the denture sleeve which ensures that it fits snugly against the tooth stump or the tooth to be restored, is achieved using a supplementary material (pasty / flowable dental plastic), for example a polymeric material, preferably a composite material of suitable consistency / viscosity is filled into the inner recess of the denture sleeve in such an amount that it fills the cavity / interspace present between the denture sleeve and the ground tooth stump.
  • a supplementary material pasty / flowable dental plastic
  • a polymeric material preferably a composite material of suitable consistency / viscosity is filled into the inner recess of the denture sleeve in such an amount that it fills the cavity / interspace present between the denture sleeve and the ground tooth stump.
  • Excess plastic gushes out when placing and positioning the denture sleeve on the tooth stump on the lower edge of the denture sleeve and can be used there for
  • Such shaping and exact adaptation of the tooth replacement sleeve to the preparation margin is possible without great effort using spatula-shaped conventional dental instruments and suitable modeling aids, since the plastic is available as a suitable paste in the oral cavity, has a suitable consistency and flowability and is easy to process.
  • the inventive fabrication of the dental prosthesis by lining / underfilling an individualized, fabricated dental prosthesis crown makes it possible to produce a high-precision composite restoration without taking an impression and producing a model.
  • transmission errors errors due to impression taking, model manufacture, casting process, casting technique, etc.
  • the fit of the composite restoration can be checked in situ and, if necessary, optimized by applying additional dental resin.
  • the tooth stump is expediently treated with an insulating agent before the dental prosthesis sleeve filled with dental plastic / composite is applied, in order to make it easier to remove the denture sleeve after the "supplementary" material has hardened.
  • Any release agent approved in the dental field can be used for insulation, provided compatibility with the tooth and the supplementary material is guaranteed.
  • the isolating agent is preferably a water-soluble gel, for example based on glycerol or alginic acid.
  • the inner surfaces of the denture sleeve with an adhesion promoter (for example acrylation) or a fine structure (for example micromechanical retention) prior to the application of the supplementary material (for example, micromechanical retention), towards the bond between the denture sleeve and that with it connecting supplementary material is aligned.
  • Chemical and / or light-curing, flowable plastic dental plastics are preferably used to fill the denture sleeve.
  • any conventional dental material with a suitable viscosity, curing kinetics and with the required mechanical and biological properties can be used for the exact shaping of the inner surfaces of the tooth crown sleeve and individualization of the crown edge.
  • the dental prosthesis sleeve must be pre-treated accordingly, for example by silanization, silicatization, blasting, chemical conditioning, in order to produce a permanent, stable bond to the dental material.
  • the dental prosthesis according to the invention it is ensured that there is a minimal joint gap and a precise edge closure of the dental prosthesis on the tooth stump. Due to the process-related, minimally minimized joint gap of the intraoral adapted denture sleeve, a tight (gap-free) edge seal after the (adhesive) bonding / cementing on the tooth to be restored is ensured when this sleeve is inserted with a dental fastening material.
  • the tooth stump itself can be pretreated for the attachment of the artificial denture using conventional means (conditioning, e.g. using a dental enamel bonding agent).
  • the production of the composite restoration according to the invention / the dentures according to the invention begins with the selection of a prefabricated denture sleeve according to individual circumstances (anatomical shape, final bite, approximal contacts, size, color, etc.) from the range with a large number of denture sleeves.
  • the tooth replacement sleeve is manufactured industrially from polymer materials (dental composite) and is offered as a range with a large number of different tooth types.
  • the selected dental prosthesis sleeve is adapted to the ground tooth stump by internal grinding and original shortening so that it blends harmoniously into the course of the dental arch and can be pushed onto the tooth stump with slight play (for example a minimum of 0.1 to a maximum of 0.5 mm).
  • the adapted denture sleeve is conditioned on the inside and in the edge area (from the outside), for example by means of appropriate chemicals (adhesion promoters, polymerizable conditioning agents based on methacrylate or microrentivally by blasting) which activate the plastic surface on the inside of the denture sleeve.
  • appropriate chemicals adheresion promoters, polymerizable conditioning agents based on methacrylate or microrentivally by blasting
  • the denture sleeve is then filled with a pasty, chemical (light-curable) dental plastic (preferably composite) that is matched to the denture sleeve (color, material properties). Subsequently, the filled dental prosthesis sleeve, after pretreatment of the ground (prepared) tooth stump with the water-soluble insulating agent, is placed on it and positioned according to the shape of the dental arch and physiological occlusion.
  • a pasty, chemical (light-curable) dental plastic preferably composite
  • the filled dental prosthesis sleeve after pretreatment of the ground (prepared) tooth stump with the water-soluble insulating agent, is placed on it and positioned according to the shape of the dental arch and physiological occlusion.
  • the dental plastic escaping from the crown sleeve is circularly adapted to the tooth stump, shaped / contoured according to the preparation margin and cervical shape / contour of the crown to be restored and then hardened.
  • the contours of the dental plastic (composite) remaining in the space between the ground tooth stump and the crown sleeve correspond to the exact contours of the tooth stump after they have hardened (polymerisation) and guarantee a precise primary adaptation of the restoration.
  • the curing can be done by light or autopolymerization. Then the relined individualized tooth replacement sleeve is removed from the tooth stump, reworked in the edge area with rotating instruments to a definitive cervical shape and edge design, polished and the fit on the tooth stump and the marginal seal checked.
  • the composite restoration according to the invention is completed by the final adhesive attachment of the individually adapted dental prosthesis sleeve to the conditioned tooth stump.
  • Combined enamel / dentin adhesives universal adhesives
  • self-conditioning / self-curing primers and adhesives based on water-miscible hema-phosphoric acid esters
  • a very low-viscosity auto-polymerizing or dual-curing composite / plastic adhesive is preferably used as the fastening material of the tooth replacement sleeve on the conditioned tooth stump.
  • the adhesive fastening / gluing ensures the load-stable, color-tight, gap-free bond between the crown restoration on the tooth stump.
  • the fastening composite joint is known in Treated and polished after polymerization.
  • the artificial dentures adhesively bonded according to the invention and the intraoral manufacturing process for this represent a decisive innovation.
  • the invention provides a dental prosthesis that fits the edge seal and the marginal tightness, which can be produced with simple means.
  • the composite restoration according to the invention saves significantly time and costs in the care of a tooth.
  • the tooth restoration takes place in a single treatment session, the need for a provisional restoration of the ground tooth until the dental technician manufactures the tooth replacement part.
  • the restoration method according to the invention can be used simply, expediently, effectively, safely and quickly to restore a tooth with conventional dental instruments, since no dental manufacturing processes and process sequences are required.
  • Fig. 1 shows the cross section of an individualized / customizable
  • Denture sleeve (crown sleeve) with pre-treated (conditioned) inner surface;
  • FIG. 3 shows the cross section of a tooth replacement sleeve filled with supplementary material
  • FIG. 4 shows the cross section of a tooth replacement sleeve placed on a tooth stump
  • FIG. 5 shows the cross section of a prepared tooth stump after removal of the tooth replacement sleeve in FIG. 4;
  • Fig. 9 shows the cross section through an intraoral tooth restoration.
  • FIG. 1 shows an industrially manufactured, assembled dental prosthesis sleeve (crown sleeve) with a conditioned inner surface.
  • a tooth replacement sleeve is available in a variety of shapes, sizes and colors, depending on the application, in an assortment and can be removed there by the dentist.
  • the tooth stump is first prepared and then provided with an insulating agent, for example a water-soluble gel-based insulating agent.
  • an insulating agent for example a water-soluble gel-based insulating agent.
  • the tooth replacement sleeve shown in FIG. 1 is filled with a supplementary material, for example a pasty / highly viscous dental plastic.
  • FIG. 4 shows the attachment of the tooth replacement sleeve shown in FIG. 3 to the tooth stump shown in FIG. 2.
  • the supplementary material is cured and an ideal edge seal is created, the supplementary material that has swelled out of the volume between the tooth stump and the denture sleeve using conventional dental instruments, e.g. a spatula, removed.
  • the curing of the supplementary material can also be supported by light curing or the like.
  • the tooth replacement sleeve is again removed from the tooth stump - see FIGS. 5 and 6.
  • the tooth stump but also the inside of the tooth replacement sleeve, is cleaned of insulating material.
  • insulating material With a water-soluble insulating agent, cleaning is very easy and gentle on the patient. Instead of water, any other solvent that is approved in dentistry can of course also be used for cleaning.
  • the tooth stump is then pretreated, for example with Hema ester.
  • a fastening material of a low-viscosity nature is applied to the inside of the finished tooth replacement sleeve. This fastening material is preferably an autopolymerizing plastic.
  • the individualized tooth replacement sleeve is placed intraorally on the pretreated (conditioned) tooth stump, so that the tooth restoration is completed after the fastening material has hardened.
  • Both the pretreatment of the tooth stump and, if appropriate, a corresponding pretreatment of the inside of the tooth replacement sleeve serves for the positive connection of the tooth replacement sleeve to the tooth stump.

Landscapes

  • 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 Prosthetics (AREA)

Abstract

L'invention concerne une prothèse dentaire artificielle comprenant: une chape individualisée surmoulée qui présente une cavité intérieure (gorge) dont les dimensions intérieures dépassent celles d'un moignon de dent sur lequel ladite chape doit être fixée; avant que la chape ne soit placée sur le moignon de dent, la surface intérieure de ladite chape est soumise à un traitement préalable, de manière à permettre à une matière de complément d'adhérer dessus par liaison de matière; avant le remplissage du volume compris entre la chape et le moignon de la dent, ledit moignon de la dent est muni d'un agent isolant; la matière de complément, de préférence une matière plastique dentaire (à deux composants) ou un autre matériau dentaire approprié est appliqué(e) sur le moignon de dent isolé et/ou dans la face intérieure de la chape et cette dernière est placée sur le moignon de la dent: après solidification de la matière de complément, la chape est ôtée du moignon de la dent et l'agent isolant dont il est muni est enlevé dudit moignon de la dent et/ou de la face intérieure de la chape; et la chape de la prothèse dentaire est fixée de manière adhésive sur le moignon de la dent à l'aide d'une matière de fixation, de préférence de la colle plastique.
EP00910714A 1999-03-02 2000-02-25 Prothese dentaire artificielle Withdrawn EP1158926A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19908977 1999-03-02
DE19908977A DE19908977C1 (de) 1999-03-02 1999-03-02 Künstlicher Zahnersatz
PCT/EP2000/001583 WO2000051517A1 (fr) 1999-03-02 2000-02-25 Prothese dentaire artificielle

Publications (1)

Publication Number Publication Date
EP1158926A1 true EP1158926A1 (fr) 2001-12-05

Family

ID=7899368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00910714A Withdrawn EP1158926A1 (fr) 1999-03-02 2000-02-25 Prothese dentaire artificielle

Country Status (4)

Country Link
EP (1) EP1158926A1 (fr)
AU (1) AU3282600A (fr)
DE (1) DE19908977C1 (fr)
WO (1) WO2000051517A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10348369B4 (de) * 2003-10-17 2007-10-18 Ivoclar Vivadent Ag Zahnrestaurationsteil sowie Verfahren zur Herstellung eines Zahnrestaurationsteils
EP1970023A1 (fr) * 2007-03-15 2008-09-17 Shmuel Rock Revêtement pour couronne dentaire modulaire
DE102013008176A1 (de) 2012-10-05 2014-04-10 Voco Gmbh Kit und Verfahren zur indirekten chairside Herstellung von Kompositinlays
CN110095063B (zh) * 2019-04-19 2021-08-31 北京大学口腔医学院 一种口腔医疗制品3d打印精度的标准检测方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604059A1 (de) * 1986-02-08 1987-08-13 Kerstin Koerber Zahnersatzkrone aus mineralischem verbund und ihre herstellung
DE19628930C1 (de) * 1996-07-18 1997-10-09 Heraeus Kulzer Gmbh Verfahren zur Herstellung eines Zahnersatzteiles
DE19635357C2 (de) * 1996-08-22 2001-12-13 Ralf Ziesemer Vorgefertigte Zahnersatzkrone für die Zahnstumpfrestauration oder den Aufbau von Zahnprothesen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0051517A1 *

Also Published As

Publication number Publication date
DE19908977C1 (de) 2000-05-31
WO2000051517A1 (fr) 2000-09-08
AU3282600A (en) 2000-09-21

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