WO2017097911A1 - Pivot radiculaire - Google Patents

Pivot radiculaire Download PDF

Info

Publication number
WO2017097911A1
WO2017097911A1 PCT/EP2016/080278 EP2016080278W WO2017097911A1 WO 2017097911 A1 WO2017097911 A1 WO 2017097911A1 EP 2016080278 W EP2016080278 W EP 2016080278W WO 2017097911 A1 WO2017097911 A1 WO 2017097911A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
root
post according
tooth
projection
Prior art date
Application number
PCT/EP2016/080278
Other languages
German (de)
English (en)
Inventor
Peter Brehm
Original Assignee
Bredent Gmbh & Co. Kg
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 Bredent Gmbh & Co. Kg filed Critical Bredent Gmbh & Co. Kg
Priority to EP16808659.3A priority Critical patent/EP3386430A1/fr
Publication of WO2017097911A1 publication Critical patent/WO2017097911A1/fr

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
    • A61C13/225—Fastening prostheses in the mouth
    • A61C13/30—Fastening of peg-teeth in the mouth

Definitions

  • the invention relates to a root post, which is particularly suitable as a structural element for a fixed or removable denture.
  • root posts In dental technology, the use of root posts is well known. Using root posts, fixed or removable dentures can be formed, whereby the root post is anchored in the root canal. The end of the pin beyond the root canal serves as an anchor for a crown. The attachment of the post is usually done by gluing or cementing. Root posts, sometimes called endodontic closures, are usually made of metal or fiber reinforced materials. From DE 20 2008 015 087 U1 a root post is known, which has a pin-shaped main body. The main body comprises a radicular area and an integrally connected building area. The root post is made of a polyether ketone material (PEEK).
  • PEEK polyether ketone material
  • a Endodontiehat for introduction into a curved root canal which has a one-piece body.
  • the pin comprises a fiber-reinforced plastic matrix, wherein the body has zones of different bending and torsional stiffness. It is intended to provide a zone with a high bending and torsional stiffness and a zone with a reduced bending and torsional rigidity.
  • a dental prosthesis which is made of a composite material.
  • the denture comprises a central core, the is made up of a bundle of fibers.
  • the core is sheathed by a shaft which is also filled with fibers.
  • the fibers of the central core and the fibers of the shaft are inserted in a hardenable resin.
  • the orientation of the fibers can be adjusted to achieve desired values of longitudinal or transverse tensile force.
  • an isoelastic endodontic pen which is constructed for the long-term endodontic treatment of teeth on the basis of a one-piece fiber-reinforced plastic base body.
  • the base body has deformation zones, wherein at least one zone is designed such that it has a reduced bending and torsional rigidity and displacement elements for a fastening material are located outside this zone.
  • an insert is known, which can be introduced into a tooth root canal. This consists of a core comprising a polymer composite material.
  • the insert is provided in the form of a fibrous casing to be correspondingly flexible during insertion. After insertion, the insert is polymerized to form a supernatant which subsequently serves as an anchor for a crown. The closure of the root canal and the anchorage are thus made of the same material.
  • the object of the invention is therefore to provide a root post, which has over known root posts improved long-term stability.
  • a root post having a pin insertable into a tooth root canal of a dental rest and a structural member of a fixed or removable denture. Between the pin and the mounting element, a radial projection is formed which separates the remainder of the tooth from the dental prosthesis, wherein the mounting element of the projection and the pin are made in one piece from at least one plastic material.
  • the root post is provided with a projection which separates the remainder of the tooth with the root canal of the actual dental prosthesis.
  • This has the consequence that no detachment of the dental prosthesis from the remainder of the tooth can take place, since the two regions are separated by the radial projection and in each case adhere together via a suitable filling material or suitable adhesive connection with the radial projection.
  • the made of plastic radial projection together with the structural element cause a damping, so that chewing forces that otherwise directly over the denture are passed into the tooth rest, are absorbed according to the invention by the radial projection. It turns out, surprisingly, that such a procedure allows a significantly improved durability, in particular for fixed-fitting dentures, so that the inventive root pin is a cost-effective alternative to treatment methods, such as, for. As implants represents.
  • the structural element is designed as an anchoring element for a fixed or removable dental prosthesis, in particular a crown or bridge.
  • the root post according to the invention is particularly suitable for fixed or removable dentures, in which case a restoration of, for example, a single tooth by means of a crown or several teeth can be made by means of a bridge.
  • the anchoring element is conical, cylindrical, conical, with a radially circumferential groove, with one or more retentive structures or spherical.
  • the root post according to the invention is made in one piece from plastic material, a complete set of post can be provided, so that the user can resort to a suitable root post for each situation.
  • the structural element is designed as a fixed denture.
  • the structural member may be shaped or machined to be a dental prosthesis such as a crown. Consequently, a one-piece element is provided, which forms both the attachment in the tooth root canal and the dental prosthesis, these two partial elements being separated by the radial projection.
  • the dental prosthesis in the form of a crown, which is formed both perpendicular to the radial projection and can be inclined to this, to create an angled structure.
  • the plastic material and the thickness of the projection formed in the axial direction and / or the shape and the plastic material of the structural element are adapted to a predetermined damping.
  • the absorption of chewing forces by the radial projection can be adapted to a predetermined damping, in which both the elasticity of the plastic material and the thickness of the radial projection is selected accordingly.
  • an adaptation to a predetermined damping can also be achieved via the shape of the structural element as well as the possibly different choice of the plastic material for the structural element. Accordingly, it is possible to To provide different tooth positions different damping properties in which an adaptation to the predetermined damping takes place.
  • the projection is in the form of a disk.
  • a disc-shaped blank of the radial projection makes it possible to accommodate differently shaped dental prostheses. Any protruding edges can also be subsequently adjusted, if desired.
  • the radial direction of the disc is arranged substantially perpendicular to the axial direction of the pin.
  • the radial projection and the axial direction of the pin or the anchoring element or the structural element are arranged perpendicular to each other, so that in particular a rectilinear root canal easy attachment to the tooth rest is possible.
  • the radial direction of the disc is arranged at an angle to the axial direction of the pin.
  • the thickness of the disc is between 0.5 mm and 3 mm.
  • the pin is designed with retentive areas.
  • the pin For fixing the pin in the tooth root canal, it is advantageous to carry out the pin with retentive areas, which may be formed, for example, in the form of undercuts or a plurality of successive conical sections. This allows a reliable attachment of the pin in the tooth root canal.
  • the pin enters into an adhesive bond with a filling material in the tooth root canal.
  • the plastic material and the filling material can be chosen so that an adhesive bond is generated in the tooth root canal, so that the attachment of the root post is further improved.
  • FIG. 1 shows a root pin according to the invention in a side view
  • FIG. 2 is a sectional view of the root post of FIG. 1 when used with a fixed denture
  • Fig. 3A to 3F further embodiments of the post in a
  • the root pin WS is manufactured in one piece from plastic material, so that the individual partial elements pin ST, radial projection RV and anchoring element VA can be provided in a single production step, for example by injection molding.
  • the plastic material used is PEEK or a composite of PEEK.
  • different properties of the inventive root pin WS can also be generated in sections.
  • the application of the inventive root pin WS of FIG. 1 is explained again in FIG. 2 on the basis of a sectional view.
  • the root pin is thereby introduced into a tooth root canal ZW and surrounded by a filling material FM which, for example, is designed such that it forms an adhesive bond with the plastic material of the pin ST.
  • the tooth root canal ZW forms the pen ST enters into an adhesive bond.
  • the root canal ZW forms part of a tooth rest ZR, which is covered at its upper end by the radial projection RV.
  • the anchoring element VA is provided with a crown KR as a dental prosthesis.
  • FIGS. 3A to 3F each show further embodiments of the root pin WS.
  • the structure differs only with respect to the anchoring element VA or the structural element, so that in the following only these differences will be explained.
  • Fig. 3A the root post is shown with an anchoring element VA, which has a radially encircling groove NU.
  • an anchoring element VA which is of spherical design.
  • Such a structure is particularly suitable for a removable dentures.
  • the anchoring element according to FIG. 3C is provided with a plurality of retentive structures RS, which in the example shown are designed as disc-shaped radial projections. Such a structure is particularly suitable for a fixed dentures.
  • the anchoring element according to FIG. 3D is arranged in the radial direction of the disc-shaped radial projection RV at an angle to the axial direction of the pin ST. Accordingly, an angled construction is possible in which a predetermined angle is formed between the longitudinal axis of the pin and the anchoring element VA arranged above the disk. Such an approach is also possible with the other anchoring elements described.
  • the structural element AE is designed as a fixed dental prosthesis. Accordingly, as an alternative to the procedure described above with anchoring elements, the structural element AE can be shaped or machined so that it represents a dental prosthesis such as a crown. The upper side of the dental prosthesis forms the chewing surface KF. Consequently, a one-piece element is provided, which forms both the attachment in the tooth root canal and the dental prosthesis, these two partial elements being separated by the radial projection.
  • the structural element AE is designed as a fixed dental prosthesis, as in FIG. 3E.
  • the structural member AE is formed or machined to constitute a dental prosthesis such as a crown in which an angle is formed between a longitudinal axis of the pin ST and the occlusal surface KF as compared with the previous embodiment.
  • the structural element AE according to FIGS. 3E and 3F can advantageously be provided as a prefabricated block, which is brought into the shape of the dental prosthesis by grinding or milling.
  • the examples of a root pin WS shown in the abovementioned exemplary embodiments of FIGS. 1 and 3A to 3F thus make it possible to increase the length of the root pin WS. time stability, especially when providing a fixed or removable dentures.

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 un pivot radiculaire (WS) qui présente un pivot (ST) pouvant être inséré dans un canal de racine dentaire d'un reste de dent et un composant (VA) d'une prothèse dentaire (KR). Une saillie radiale (RV) qui sépare le reste de dent de la prothèse dentaire (KR) est formée entre le pivot (ST) et le composant (VA). Le composant (VA), la saillie (RV) et le pivot (ST) sont fabriqués d'un seul tenant à partir d'une matière plastique.
PCT/EP2016/080278 2015-12-11 2016-12-08 Pivot radiculaire WO2017097911A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16808659.3A EP3386430A1 (fr) 2015-12-11 2016-12-08 Pivot radiculaire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015121665.5 2015-12-11
DE102015121665.5A DE102015121665A1 (de) 2015-12-11 2015-12-11 Wurzelstift

Publications (1)

Publication Number Publication Date
WO2017097911A1 true WO2017097911A1 (fr) 2017-06-15

Family

ID=57517900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/080278 WO2017097911A1 (fr) 2015-12-11 2016-12-08 Pivot radiculaire

Country Status (3)

Country Link
EP (1) EP3386430A1 (fr)
DE (1) DE102015121665A1 (fr)
WO (1) WO2017097911A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US797748A (en) 1904-09-02 1905-08-22 Daniel J Richardson Registering attachment for type-writers.
DE2824214A1 (de) * 1978-06-02 1979-12-06 Riess Guido Dr Verbindungselement zwischen einer dentalen suprastruktur und einer zahnwurzel
US4290755A (en) * 1979-03-05 1981-09-22 Scott Edward S Dental post and method of installing
EP0178234A1 (fr) * 1984-08-31 1986-04-16 Jean-Jacques Russier Joint physiologique étanche pour implants endo-extracorporels
DE8708671U1 (de) * 1986-06-24 1987-12-03 Nardi, Ezio, Bologna Mittel zur Befestigung einer Zahnprothese im Mund
RU2031639C1 (ru) * 1993-07-14 1995-03-27 Евгений Николаевич Минкин Штифтовая культевая вкладка
US6183253B1 (en) 1996-09-17 2001-02-06 Gilles Billet Endodontic insert pre-impregnated with reinforcing fibres for filling the dental canal
JP2003116883A (ja) 2001-10-12 2003-04-22 Mitsuasa One 根管充填材と合釘支台とからなる一体化構造物
DE102005021807B3 (de) 2005-05-04 2006-11-30 Universität Rostock Isoelastischer Endodontiestift
DE202008015087U1 (de) 2008-11-14 2009-02-19 Gebr. Brasseler Gmbh & Co. Kg Wurzelstift
DE102008017385A1 (de) * 2008-04-02 2009-10-08 Universität Rostock Wurzelstift für die endodontische Stift-Stumpf-Versorgung
DE102008042021B3 (de) 2008-09-12 2010-04-15 Universität Rostock Endodontiestift zur Einführung in einen gekrümmten Wurzelkanal

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US797748A (en) 1904-09-02 1905-08-22 Daniel J Richardson Registering attachment for type-writers.
DE2824214A1 (de) * 1978-06-02 1979-12-06 Riess Guido Dr Verbindungselement zwischen einer dentalen suprastruktur und einer zahnwurzel
US4290755A (en) * 1979-03-05 1981-09-22 Scott Edward S Dental post and method of installing
EP0178234A1 (fr) * 1984-08-31 1986-04-16 Jean-Jacques Russier Joint physiologique étanche pour implants endo-extracorporels
DE8708671U1 (de) * 1986-06-24 1987-12-03 Nardi, Ezio, Bologna Mittel zur Befestigung einer Zahnprothese im Mund
RU2031639C1 (ru) * 1993-07-14 1995-03-27 Евгений Николаевич Минкин Штифтовая культевая вкладка
US6183253B1 (en) 1996-09-17 2001-02-06 Gilles Billet Endodontic insert pre-impregnated with reinforcing fibres for filling the dental canal
JP2003116883A (ja) 2001-10-12 2003-04-22 Mitsuasa One 根管充填材と合釘支台とからなる一体化構造物
DE102005021807B3 (de) 2005-05-04 2006-11-30 Universität Rostock Isoelastischer Endodontiestift
DE102008017385A1 (de) * 2008-04-02 2009-10-08 Universität Rostock Wurzelstift für die endodontische Stift-Stumpf-Versorgung
DE102008042021B3 (de) 2008-09-12 2010-04-15 Universität Rostock Endodontiestift zur Einführung in einen gekrümmten Wurzelkanal
DE202008015087U1 (de) 2008-11-14 2009-02-19 Gebr. Brasseler Gmbh & Co. Kg Wurzelstift

Also Published As

Publication number Publication date
EP3386430A1 (fr) 2018-10-17
DE102015121665A1 (de) 2017-06-14

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