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WO2008009272A1 - Implant - Google Patents

Implant Download PDF

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Publication number
WO2008009272A1
WO2008009272A1 PCT/DE2007/001267 DE2007001267W WO2008009272A1 WO 2008009272 A1 WO2008009272 A1 WO 2008009272A1 DE 2007001267 W DE2007001267 W DE 2007001267W WO 2008009272 A1 WO2008009272 A1 WO 2008009272A1
Authority
WO
WIPO (PCT)
Prior art keywords
implant
bone
microstructure
shaped body
etched
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/DE2007/001267
Other languages
German (de)
English (en)
Inventor
Dieter Keller
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 WO2008009272A1 publication Critical patent/WO2008009272A1/fr
Anticipated expiration legal-status Critical
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
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0006—Production methods
    • 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
    • A61C13/0006—Production methods
    • A61C13/0007—Production methods using sand blasting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0037—Details of the shape
    • A61C2008/0046—Textured surface, e.g. roughness, microstructure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/30906—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth shot- sand- or grit-blasted
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/30925—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth etched
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2002/30968—Sintering

Definitions

  • the invention relates to a method for producing an implant and an implant, which is produced by this method.
  • Implants are often used in particular in the field of dentures in humans.
  • the compatibility of the implant with the bone and a rapid and sufficiently stable osseointegration are problematic.
  • a dental implant which has a bioactive ceramic layer to increase the compatibility with the jawbone.
  • a dental implant is likewise known from DE 20 2004 020338 U1, wherein a shaped part is milled from a zirconium oxide green body which has an excess to compensate for a shrinkage due to sintering. The milled green body is then blasted with sand and only then is the fired green body sintered. The blast treatment of the surface of the zirconia green sheet creates a rough structure that increases the degree of osseointegration.
  • RI also described in DE 10 2004 027959 A1 is a dental implant with an anchoring section based on zirconium oxide, wherein the endosseous parts are roughened by means of blasting sand.
  • Implants are understood here to mean different implant types, such as bone implants, eddy-part implants, but in particular dental implants.
  • the implant is intended for growth on a bone.
  • the implant can also replace bone parts.
  • a zirconia-based green compact preferably in rod form.
  • the zirconia green sheet is preferably slightly pre-sintered to give it sufficient stability and toughness.
  • the green body can even consist exclusively of zirconia.
  • zirconium oxide is metal-free with respect to titanium and is snow-white in the pure state.
  • the Zirkonoxid indispensableling can be colored in any given tooth color to achieve an aesthetically pleasing result.
  • no foreign material such as a biocompatible ceramic layer, needs to be applied, which already influences the quality of the base material during the manufacturing process.
  • a resorption of calcium, phosphate or composites between different materials does not occur.
  • a shaped body is formed by preferably milling.
  • the shaped body is milled out of the zirconia body by means of a milling device.
  • the green body receives its basic geometric shape and the molded body is created. Milling methods are well known in the art and therefore will not be further described here.
  • the molded article has an oversize of about 30% to account for shrinkage due to subsequent heating.
  • After the production of the green body is at least one etched for contact with the bone outer surface of the green body with acid. Milling and etching need not follow each other directly. At the etched areas, the outer surface of the implant receives an osseointegration-enhancing microstructure in the ⁇ range, which, in addition to shortening the healing time, also increases bone quality.
  • the etched molding is then subjected to a heat treatment.
  • a heat treatment it may preferably be a known sintering process in which the etched molded body is baked in an oven at 1500 0 C to 2000 ° C preferably. Also due to the high sintering temperature acid residues are completely removed.
  • the microstructure is permanently strengthened by sintering.
  • Essential to the invention in the method described are the process steps milling, acid treatment and subsequent sintering. You can still insert intermediate steps.
  • the only slightly pre-sintered green compact is sufficiently chemically active to be vulnerable to attack by acid to form the microstructure. After the sintering process, the implant, in particular the outer surface of the implant, would no longer be chemically active, so that subsequent acid treatment would not be successful.
  • the outer surface of the implant is treated with acid, preferably concentrated hydrofluoric acid (HF) for about 15 seconds.
  • acid preferably concentrated hydrofluoric acid (HF)
  • the implant can be dipped in an acid bath and quickly withdrawn after 15 seconds.
  • the acid treatment produces the microstructure on the surface of the molding, which is a roughness in the ⁇ range.
  • microroughness or microstructure is preferably less than 1 ⁇ m and is therefore particularly well suited for stimulating the attachment of osteoplast cells in order to achieve a rapid growth of the cells to the zirconium oxide.
  • macroroughness after cell preparation is particularly suitable for rapid and stable osseointegration.
  • the surface of the molding receives a macrostructure. In the process, the surface becomes with
  • Blasting sand irradiated with predetermined grain size under certain pressure Preferably is used as blasting sand corundum with a grain size of 250 microns to 350 microns.
  • the macrostructure is a roughness in the range of more than 1 ⁇ m, with the center of gravity being 50 to 100 ⁇ m. Roughness is the average distance between two adjacent elevations of the associated roughness. The same applies to the microstructure.
  • the bone grows into the macrostructure during healing and fixes the implant to the bone. The bone needs the macrostructure for integration.
  • the acidic layer wetting the implant is rinsed off with water immediately after the etching process.
  • the acid-treated and washed shaped body is submerged in an alcohol bath under ultrasound.
  • an alcohol bath under ultrasound As a result, as far as a blasting treatment has been carried out, corundum residues are removed and the surface tension of the liquid in the green body is reduced so that the evaporation pressure during drying is reduced.
  • the molding can be dried.
  • the drying takes place at 50 ° C. under red light or in the drying oven for at least 30 minutes.
  • the implants described can be of various types.
  • the method according to the invention is suitable for the production of a wide variety of implants.
  • vertebral implants can be produced by the method according to the invention.
  • one area of the two vertebrae adjacent to the defective intervertebral disc can be removed and replaced by a vertebral implant.
  • the implant surfaces intended for contact with the vertebral bones are treated by the method according to the invention.
  • the spinal implant grows faster and more firmly on the two vertebrae than conventional implants.
  • a dental implant is produced.
  • the dental implant has an anchoring portion and a mounting portion.
  • the anchoring portion and the mounting portion are preferably made in one piece from a zirconia-based material. At best, the material can only contain zirconium oxide.
  • the molding of the Dental implants are milled from the zirconia green body and then treated on its surface.
  • the anchoring portion of the dental implant preferably comprises a thread already formed in the milling step.
  • the thread can be turned into the jawbone, thus ensuring a sufficient initial stability of the implant in the jawbone.
  • the jawbone grows during the healing phase in the grooves of the thread. It thus forms undercuts, which produce a mechanically stable connection between the dental implant and the jawbone.
  • the moldings hook u. ⁇ . which are implantable in the residual bone.
  • Fine usually on the anchoring portion of the dental implant formed anchoring structures of the implant outer surface, such as the thread, at best with the fine grain size of 250 microns and coarse topographies, such as smooth outer surfaces of vertebral implants or smooth anchoring structures of dental implants, with the coarse 350 ⁇ Grain blasted. Only the areas in which the bone is to grow in need to be blasted. The abutment portion of the dental implant need not be irradiated because it is intended for attachment of the prosthetics.
  • the object is achieved with respect to the product by an implant having the features of claim 12.
  • the implant essentially comprises zirconium oxide whose outer surfaces intended for contact with the bone have a macrostructure and a microstructure.
  • the outer surface of the implant intended for contact with the bone is provided with a
  • Microstructure preferably provided in the range below 1 micron.
  • the roughness created by protrusions and depressions is the microstructure.
  • the average distances adjacent elevations and / or depressions are less than 1 micron.
  • the microstructure can be prepared by the method described above using acid.
  • the outer surface has a superimposed macrostructure, preferably in the 100 ⁇ range.
  • the macrostructure also has elevations and depressions, with adjacent depressions or elevations having an average spacing of approximately 100 ⁇ m.
  • the macrostructure is generated by the blast treatment.
  • the anchoring structure may be a longitudinally oriented thread intended for insertion and anchoring in the jawbone.
  • the implant has as a tooth root implant on the opposite side of the thread a holder for an attachable after healing of the implant in the jaw bone crown. Thread and holder can be generated by the milling described above.
  • FIG. 2 shows a schematic side view of a dental implant according to the invention
  • FIG. 3 is a first perspective view of a thread of the dental implant in Fig. 2,
  • FIG. 4 is a second enlarged perspective view of the thread in Fig. 3,
  • FIG. 5 shows a third enlarged view of the thread in FIG. 3 and FIG. 4.
  • a Zirkonoxid indispensableling (ZrO 2 ) 20 is provided as a starting material for the production of the dental implant 10 according to the invention.
  • the Zirkonoxid indispensableling 20 is presintered.
  • the pretreatment renders the zirconia green compact 20 stable to handle.
  • a shaped body 30 is milled from at least part of the zirconia green compact 20.
  • the molded body 30 after milling has already substantially the shape of the dental implant 10 with excess to account for the shrinkage in a subsequent sintering step C to the final shape and compensate for this.
  • process step B several sub-process steps for the treatment of the molding 30 are summarized.
  • the anchoring section 31 intended for contact with the jawbone is first of all treated by sand blasting.
  • the blast treatment results in a macrostructure on the surface of the dental implant 10 which is in the range of 100 ⁇ m.
  • the macrostructure 37 of the jaw bone grows and anchored the dental implant 10 so firmly.
  • a blasting sand with a different, adapted grain size can be used.
  • the shaped body 30 is blasted with corundum having a grain size between 250 ⁇ m to 350 ⁇ m and a pressure of 1, 5 bar.
  • the small grain size of 250 ⁇ m is used for blasting filigree structures of an anchoring section 31, in particular for the treatment of a thread 33.
  • a sandblast treatment with 250 micron grit obtains the structure of the thread 33. Irradiation of the buildup section 32 can be completely dispensed with.
  • the shaped body receives by sandblasting its macrostructure 37 on the outer surface.
  • the green compact 30 is etched with acid.
  • the anchoring section 31 also receives its microstructure 34 essential to the invention.
  • only the anchoring section 31 is subjected to an acid treatment by only immersing it in an acid bath. It has been found convenient to allow concentrated hydrofluoric acid (HF) to act on blasting sand treated anchoring section 31 for 15 seconds.
  • HF concentrated hydrofluoric acid
  • the etched anchoring portion 31 is quickly pulled out of the acid bath and the molded body 30 is rinsed with water in total. This will remove most of the hydrofluoric acid.
  • the rinsed molded body 30 is then cleaned in an alcohol bath under ultrasound. On the one hand, corundum residues are removed by the ultrasonic and alcohol treatment, and on the other hand, the surface tension of the liquid in the molded body 30 is reduced. This reduces the evaporation pressure during drying.
  • Fig. 1 also subsumed under treatment step B, the molding 30 is treated at 50 ° C under red light or in a drying oven for at least 30 minutes.
  • the drying time also depends on the size of the implant.
  • step B Decisive for the abovementioned process steps subsumed under step B is the etching with hydrofluoric acid (HF). Due to the acid treatment, the dental implant 10 receives a microstructure 34 in addition to its macrostructure 37 produced by sand blasting.
  • HF hydrofluoric acid
  • the microstructure 34 is nanoscale roughness.
  • microstructure 34 that significantly accelerates the ingrowth of the dental implant 10 into the jawbone, as the first bone-forming cells, because of the microstructure 34, more easily connect to the zirconia outer surface of the implant via thin fibers
  • the molded body 30 is sintered in a conventional manner in method step C.
  • the etched molding 30 is baked in an oven at about 1500 0 C. It is also possible to use sintering temperatures of up to 2000 ° C.
  • the molded body 30 shrinks by about 30% to the dental implant 10, in the
  • Implantation usable shape and size. During sintering, microstructure 34 and macrostructure 37 are preserved.
  • Fig. 2 shows the dental implant 10 in its final version.
  • the dental implant 10 has the anchoring portion 31 having a thread 33 and the mounting portion 32 comprising a holder 36 for the application of prosthetic elements.
  • the anchoring portion 31 is tapered towards the free end. He has one conical shape.
  • the transition between anchoring portion 31 and holder 32 is formed as the dental implant 10 circumferential collar 35.
  • the dental implant 10 according to FIG. 2 is implanted in the pretreated jawbone.
  • the anchoring portion 31 is screwed with the thread 33 in the jawbone.
  • the thread 33 gives the implant an initial stability.
  • the jawbone grows into the macrostructure 37. A secure bond is created between anchoring portion 31 and jawbone.
  • the combination of macro and microstructure 33, 37 of the anchoring portion 31 significantly speeds healing. Without microstructure 34, significantly longer healing times would result. Due to the microstructure 34, fibers of the bone-forming cells can more readily and more easily bond to the zirconia of the macrostructure 37. Along this first forming fibers of the bone-forming cells, a jawbone grows into the macrostructure 37 of the dental implant 10. The dental implant 10 receives its actual stability by the ingrowth of the bone into the macrostructure 37. The bone quality is improved over conventional implants.
  • prosthetic elements such as stoops or crowns are cemented after healing.
  • the wound margins can be adapted directly to the implant outer surface. The result is a soft tissue termination on the dental implant 10.
  • the dental implant 10 is, up to a few millimeters above the bone crest, sunk into the jawbone.
  • Fig. 3 shows the thread 33 of the anchoring portion 31 in a first magnification.
  • the thread 33 has a diameter of about 6 mm and a length of about 10 - 12 mm.
  • the pitch of the thread 33 is about 1 mm.
  • FIG. 4 shows the macrostructure 37 of the thread 33 in Fig. 3 again in a second, larger magnification.
  • Fig. 4 shows the thread 33 in a section after sintering. After sintering, the dental implant 10 is extremely strong and resistant and in this state, in particular by an acid treatment, no longer changeable.
  • the macrostructure 37 shown in FIG. 4 is on the order of about 100 ⁇ m.
  • Fig. 5 shows a detail in Fig. 4 in a third even greater magnification.
  • the microstructure 34 is also shown after sintering of the thread 33 in Fig. 3.
  • the microstructure 34 is on the order of about 0.1 to 1 ⁇ m.
  • the microstructure 34 has small elevations and depressions.
  • the arrangement of elevations and depressions immediately adjacent to one another forms the roughness of the microstructure 34.
  • This microstructure 34 greatly facilitates the first attachment of the fibers of the bone-forming cells to the zirconia implant.
  • the microstructure 34 is a nanosurface of the zirconia outer surface.
  • the microstructure 34 is produced by etching with hydrofluoric acid in method step B. By sintering, however, the microstructure 34 is not destroyed, but permanently and firmly formed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (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 se rapporte à un procédé pour produire un implant pour le corps d'un être humain ou d'un animal, consistant à fournir une ébauche (20), à façonner cette ébauche (20) pour obtenir un corps (30) présentant une certaine forme, à soumettre une surface extérieure de ce corps (30) destinée à entrer en contact avec l'os à une attaque à l'acide, et à traiter thermiquement le corps (30) à l'issue de cette attaque à l'acide.
PCT/DE2007/001267 2006-07-20 2007-07-13 Implant Ceased WO2008009272A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610033547 DE102006033547A1 (de) 2006-07-20 2006-07-20 Implantat
DE102006033547.3 2006-07-20

Publications (1)

Publication Number Publication Date
WO2008009272A1 true WO2008009272A1 (fr) 2008-01-24

Family

ID=38658291

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001267 Ceased WO2008009272A1 (fr) 2006-07-20 2007-07-13 Implant

Country Status (2)

Country Link
DE (1) DE102006033547A1 (fr)
WO (1) WO2008009272A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008077263A3 (fr) * 2006-12-22 2008-08-28 Thommen Medical Ag Implant dentaire et procédé de fabrication de celui-ci
WO2010101523A1 (fr) * 2009-03-04 2010-09-10 Forskarpatent I Syd Ab Prothèses à base de dioxyde de zirconium
EP2394602B1 (fr) 2010-06-10 2016-05-18 Dentsply IH AB Fixation dentaire
USD765856S1 (en) 2014-02-14 2016-09-06 Vita Zahnfabrik H. Rauter Gmbh & Co. Kg Dental implant
WO2019106009A3 (fr) * 2017-11-28 2019-08-15 Sirona Dental Systems Gmbh Bloc moulé de prothèse dentaire et procédé de fabrication d'une pièce de prothèse dentaire à partir du bloc moulé de prothèse dentaire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011050335A1 (de) 2011-05-13 2012-11-15 Microceram Gmbh Verfahren zur Behandlung von keramischen Oberflächen sowie keramische Implantate auf der Basis von Zirkonoxid

Citations (5)

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WO2003059407A1 (fr) * 2002-01-21 2003-07-24 Straumann Holding Ag Implants a surface modifiee
EP1440669A1 (fr) * 2003-01-23 2004-07-28 Dinkelacker, Wolfgang, Dr. med. dent. Implant osseux et procédé pour sa fabrication
US20040210309A1 (en) * 2001-10-11 2004-10-21 Denzer Alain J Osteophilic implants
DE102004027959A1 (de) * 2004-06-08 2006-01-05 Johan Dr. Feith Dentalimplantat
WO2006066898A2 (fr) * 2004-12-21 2006-06-29 Johan Feith Implant dentaire

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US4869653A (en) * 1987-10-07 1989-09-26 Marlen Research Corporation Compact twin piston pump
DE10159683A1 (de) * 2001-11-30 2003-06-18 Michael Gahlert Dantalimplantat
DE102005005656B4 (de) * 2004-06-08 2010-04-08 Feith, Johan, Dr. Dentalimplantat und Verfahren zum Herstellen eines Dentalimplantats

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040210309A1 (en) * 2001-10-11 2004-10-21 Denzer Alain J Osteophilic implants
WO2003059407A1 (fr) * 2002-01-21 2003-07-24 Straumann Holding Ag Implants a surface modifiee
EP1440669A1 (fr) * 2003-01-23 2004-07-28 Dinkelacker, Wolfgang, Dr. med. dent. Implant osseux et procédé pour sa fabrication
DE102004027959A1 (de) * 2004-06-08 2006-01-05 Johan Dr. Feith Dentalimplantat
WO2006066898A2 (fr) * 2004-12-21 2006-06-29 Johan Feith Implant dentaire

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008077263A3 (fr) * 2006-12-22 2008-08-28 Thommen Medical Ag Implant dentaire et procédé de fabrication de celui-ci
US8671572B2 (en) 2006-12-22 2014-03-18 Thommen Medical Ag Method for the production of a dental implant
WO2010101523A1 (fr) * 2009-03-04 2010-09-10 Forskarpatent I Syd Ab Prothèses à base de dioxyde de zirconium
EP2403428A4 (fr) * 2009-03-04 2012-08-15 Forskarpatent I Syd Ab Prothèses à base de dioxyde de zirconium
US8834161B2 (en) 2009-03-04 2014-09-16 Innovationspatent Sverige Ab Zirconium dioxide based prostheses
EP2394602B1 (fr) 2010-06-10 2016-05-18 Dentsply IH AB Fixation dentaire
USD765856S1 (en) 2014-02-14 2016-09-06 Vita Zahnfabrik H. Rauter Gmbh & Co. Kg Dental implant
WO2019106009A3 (fr) * 2017-11-28 2019-08-15 Sirona Dental Systems Gmbh Bloc moulé de prothèse dentaire et procédé de fabrication d'une pièce de prothèse dentaire à partir du bloc moulé de prothèse dentaire
KR20200085898A (ko) * 2017-11-28 2020-07-15 시로나 덴탈 시스템스 게엠베하 치아 보철 몰딩 블록, 및 치아 보철 몰딩 블록으로부터 치아 보철 부분을 제조하기 위한 방법
EP3981360A3 (fr) * 2017-11-28 2022-07-06 Sirona Dental Systems GmbH Bloc de moulage de prothèse dentaire et procédé de fabrication d'une prothèse dentaire à partir du bloc de moulage de prothèse dentaire
KR102599478B1 (ko) 2017-11-28 2023-11-06 시로나 덴탈 시스템스 게엠베하 치아 보철 몰딩 블록, 및 치아 보철 몰딩 블록으로부터 치아 보철 부분을 제조하기 위한 방법
US12427002B2 (en) 2017-11-28 2025-09-30 Dentsply Sirona Inc. Dental prosthesis molding block and method for producing a dental prosthesis part from the dental prosthesis molding block

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Publication number Publication date
DE102006033547A1 (de) 2008-01-24

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