WO2004042098A1 - Dentalguss-legierung - Google Patents
Dentalguss-legierung Download PDFInfo
- Publication number
- WO2004042098A1 WO2004042098A1 PCT/EP2003/012465 EP0312465W WO2004042098A1 WO 2004042098 A1 WO2004042098 A1 WO 2004042098A1 EP 0312465 W EP0312465 W EP 0312465W WO 2004042098 A1 WO2004042098 A1 WO 2004042098A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alloy
- weight
- elements
- dental
- alloy according
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- 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
- A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys
Definitions
- the invention relates to a dental casting alloy for the production of dental prosthesis frameworks.
- model casting alloys In addition to chromium and molybdenum, such model casting alloys contain high levels of carbon in order to achieve the corresponding rigidity required by the dental technology and a light-bodied melt that facilitates the precise casting of the models. ,
- Manganese and silicon are used in these alloys to have a correspondingly positive effect on the flowability.
- Alloys that are to be used in dental technology generally have special requirements.
- bonding alloys for metal ceramics must be compatible with conventional dental ceramics with regard to thermal expansion and contraction.
- these alloys must build up a thin oxide layer that ensures adhesion between metal and ceramic.
- the oxide color must not shine through the opaque ceramic.
- a certain level of activation and spring hardness is required.
- the alloys used can be processed with the means available in the dental laboratory, so they should be able to be cast using the usual cast centrifuges.
- the alloys that are frequently used in dental alloys contain a much higher carbon content when used as a model casting material than is permitted by various standards.
- dental casting alloys are to be preferred, the hardness of which does not deviate too much from the hardness of the natural tooth enamel in the cast state, so that any significant abrasive wear on the tooth is avoided when the dental casting alloy comes into contact with the tooth surface. It is also advantageous if the alloy can be produced with low nickel contents, since nickel-allergic patients can then also be supplied with such prostheses.
- HV 10 Vickers hardness
- production-related impurities of less than 0.1% by weight each occur.
- the total content of the elements of the 4th and / or the 5th subgroup of the periodic table of the elements is approximately 0.05 to approximately 0.4% by weight.
- the elements of the 4th and 5th subgroups of the periodic table of the elements are selected from titanium, zirconium, niobium and tantalum.
- Alloys according to the invention which are essentially free of the elements iron, vanadium, nickel, molybdenum and / or carbon are also preferred.
- Preferred alloys also include
- Mn has a deoxidizing effect in the melt and binds oxygen with the formation of slags.
- the silicon content serves to lower the viscosity of the melt, so that very fine details are well formed in the casting.
- the nitrogen content increases ductility. If the proportions are too low, the elongation at break is lower and the yield strength is lower.
- the dental casting alloys according to the invention can be used to produce prosthetic frameworks with high corrosion resistance, which moreover have good processing properties, in particular low hardness and a low coefficient of thermal expansion, and good laser weldability.
- the low coefficients of thermal expansion simplify veneering of the frameworks with ceramics.
- Table 3 summarizes comparative examples 1 to 6 and shows, compared to the above example of an alloy according to the invention, the importance of adhering to the limits in the element composition in order to obtain balanced, good properties of the dental casting alloy.
- the alloys summarized above in the table of the comparative examples are all suitable as framework material and for ceramic veneering, but they all have one or the other or also several disadvantages in comparison to the alloy according to the invention.
- the alloy according to Comparative Example 5 has a low thermal expansion, but a relatively high hardness.
- the alloy has a relatively low hardness of 310 HV 10, but has the disadvantage of a high coefficient of thermal expansion. cients, which can cause difficulties when veneering with ceramics.
- the comparative alloys 1 to 4 have a low hardness, but have far higher coefficients of thermal expansion than the alloy according to the invention and are therefore difficult to process with ceramics.
- an element of the 4th or 5th subgroup according to the invention in particular selected from the elements titanium, zirconium, niobium and tantalum, improves the corrosion resistance and increases the heat resistance when the ceramic materials are fired.
- the element niobium is also comparable to biocompatible, such as titanium or tantalum or zircon, and does not cause tissue reactions.
- the alloy according to the invention is therefore also particularly biocompatible.
- the preferred elements of the 4th and 5th subgroups of the Periodic Table of the Elements namely niobium, titanium, tantalum and zircon, also bind the residual carbon in the alloy and thus prevent the formation of chromium carbides. This in turn brings about good laser weldability of the alloy according to the invention.
- the alloy according to the invention does not contain any precious metal components, as are used in some conventional alloys with low hardness, and some of them contain up to 2% gold, in order to reduce the hardness of the alloy to an acceptable value.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Dental Preparations (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03782187A EP1558775B1 (de) | 2002-11-07 | 2003-11-07 | Dentalguss-legierung |
DE50307147T DE50307147D1 (de) | 2002-11-07 | 2003-11-07 | Dentalguss-legierung |
US11/121,943 US20050232806A1 (en) | 2002-11-07 | 2005-05-05 | Dental casting alloy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10252776A DE10252776A1 (de) | 2002-11-07 | 2002-11-07 | Dentalguss-Legierung |
DE10252776.8 | 2002-11-07 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/121,943 Continuation-In-Part US20050232806A1 (en) | 2002-11-07 | 2005-05-05 | Dental casting alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004042098A1 true WO2004042098A1 (de) | 2004-05-21 |
Family
ID=32308527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/012465 WO2004042098A1 (de) | 2002-11-07 | 2003-11-07 | Dentalguss-legierung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050232806A1 (de) |
EP (1) | EP1558775B1 (de) |
AT (1) | ATE360710T1 (de) |
DE (2) | DE10252776A1 (de) |
WO (1) | WO2004042098A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1693474A1 (de) * | 2005-02-16 | 2006-08-23 | BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. KG | Aufbrennfähige Legierung zur Herstellung keramisch verblendeter Dentalrestaurationen |
EP1972322A2 (de) | 2007-03-19 | 2008-09-24 | DeguDent GmbH | Verfahren zum Polieren von metallischen Zahnrekonstruktionen |
EP1972321A1 (de) | 2007-03-19 | 2008-09-24 | DeguDent GmbH | Verfahren zur Herstellung eines Zahnersatzes sowie Zahnersatz |
WO2013072899A1 (en) * | 2011-11-18 | 2013-05-23 | Tubitak | Alloy for high temperature tooling applications |
CN112410619A (zh) * | 2020-11-10 | 2021-02-26 | 武汉轻工大学 | 一种填加铌、氮改性的钴基铸造合金及应用 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5816411B2 (ja) * | 2010-03-24 | 2015-11-18 | セイコーインスツル株式会社 | 高強度、高弾性率および塑性加工性に優れたNiフリー生体用Co基合金およびステント |
US9631262B2 (en) | 2012-08-28 | 2017-04-25 | Questek Innovations Llc | Cobalt alloys |
CN106319289B (zh) * | 2016-08-29 | 2018-06-15 | 深圳市圆梦精密技术研究院 | Co-Cr-W合金及其加工方法和应用 |
CN106282672B (zh) * | 2016-08-29 | 2018-03-27 | 深圳市圆梦精密技术研究院 | Co‑Cr‑Mo合金、微创手术刀的加工方法和微创手术刀 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459263A (en) * | 1982-09-08 | 1984-07-10 | Jeneric Industries, Inc. | Cobalt-chromium dental alloys containing ruthenium and aluminum |
DE3415249C1 (de) * | 1984-04-24 | 1985-04-25 | Norbert Prof. Dr.-Ing. 4156 Willich Nowack | Legierung fuer Dentalzwecke |
DE3941820A1 (de) * | 1989-12-19 | 1991-06-20 | Krupp Medizintechnik | Cobalt-chrom-dentalgusslegierung und ihre verwendung |
FR2733416A1 (fr) * | 1995-04-28 | 1996-10-31 | Bourrelly Georges | Alliage pour protheses dentaires a base de cobalt-chrome aluminium |
DE19714034A1 (de) * | 1997-04-04 | 1998-10-08 | Herbst Bremer Goldschlaegerei | Legierung für Dentalgußteile und Verwendung derselben |
DE19845638C1 (de) * | 1998-10-05 | 2000-04-20 | Winkelstroeter Dentaurum | Verwendung einer kohlenstofffreien Kobalt-Basislegierung als Werkstoff für die Dentalprothetik |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2996379A (en) * | 1958-12-04 | 1961-08-15 | Union Carbide Corp | Cobalt-base alloy |
DE3319457C1 (de) * | 1983-05-28 | 1984-02-09 | Degussa Ag, 6000 Frankfurt | Kobaltlegierungen zur Herstellung von Zahnersatz |
DE3609184C2 (de) * | 1986-03-19 | 1994-01-27 | Krupp Ag | Verwendung einer Legierung zur Herstellung von Gußteilen für die Dentaltechnik |
DE19911166A1 (de) * | 1999-03-12 | 2000-09-14 | Herbst Bremer Goldschlaegerei | Dental-Legierung |
-
2002
- 2002-11-07 DE DE10252776A patent/DE10252776A1/de not_active Withdrawn
-
2003
- 2003-11-07 WO PCT/EP2003/012465 patent/WO2004042098A1/de active IP Right Grant
- 2003-11-07 EP EP03782187A patent/EP1558775B1/de not_active Expired - Lifetime
- 2003-11-07 DE DE50307147T patent/DE50307147D1/de not_active Expired - Lifetime
- 2003-11-07 AT AT03782187T patent/ATE360710T1/de not_active IP Right Cessation
-
2005
- 2005-05-05 US US11/121,943 patent/US20050232806A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459263A (en) * | 1982-09-08 | 1984-07-10 | Jeneric Industries, Inc. | Cobalt-chromium dental alloys containing ruthenium and aluminum |
DE3415249C1 (de) * | 1984-04-24 | 1985-04-25 | Norbert Prof. Dr.-Ing. 4156 Willich Nowack | Legierung fuer Dentalzwecke |
DE3941820A1 (de) * | 1989-12-19 | 1991-06-20 | Krupp Medizintechnik | Cobalt-chrom-dentalgusslegierung und ihre verwendung |
FR2733416A1 (fr) * | 1995-04-28 | 1996-10-31 | Bourrelly Georges | Alliage pour protheses dentaires a base de cobalt-chrome aluminium |
DE19714034A1 (de) * | 1997-04-04 | 1998-10-08 | Herbst Bremer Goldschlaegerei | Legierung für Dentalgußteile und Verwendung derselben |
DE19845638C1 (de) * | 1998-10-05 | 2000-04-20 | Winkelstroeter Dentaurum | Verwendung einer kohlenstofffreien Kobalt-Basislegierung als Werkstoff für die Dentalprothetik |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1693474A1 (de) * | 2005-02-16 | 2006-08-23 | BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. KG | Aufbrennfähige Legierung zur Herstellung keramisch verblendeter Dentalrestaurationen |
EP1696044A1 (de) * | 2005-02-16 | 2006-08-30 | BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. KG | Aufbrennfähige Legierung zur Herstellung keramisch verblendeter Dentalrestaurationen |
US7491361B2 (en) | 2005-02-16 | 2009-02-17 | BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. KG | Burning-on alloy for the production of ceramically veneered dental restorations |
EP1972322A2 (de) | 2007-03-19 | 2008-09-24 | DeguDent GmbH | Verfahren zum Polieren von metallischen Zahnrekonstruktionen |
EP1972321A1 (de) | 2007-03-19 | 2008-09-24 | DeguDent GmbH | Verfahren zur Herstellung eines Zahnersatzes sowie Zahnersatz |
DE102008002797A1 (de) | 2007-03-19 | 2008-09-25 | Degudent Gmbh | Verfahren zur Herstellung von Zahnersatz |
WO2013072899A1 (en) * | 2011-11-18 | 2013-05-23 | Tubitak | Alloy for high temperature tooling applications |
CN112410619A (zh) * | 2020-11-10 | 2021-02-26 | 武汉轻工大学 | 一种填加铌、氮改性的钴基铸造合金及应用 |
CN112410619B (zh) * | 2020-11-10 | 2022-02-15 | 武汉轻工大学 | 一种添加铌、氮改性的钴基铸造合金及应用 |
Also Published As
Publication number | Publication date |
---|---|
EP1558775A1 (de) | 2005-08-03 |
EP1558775B1 (de) | 2007-04-25 |
DE50307147D1 (de) | 2007-06-06 |
ATE360710T1 (de) | 2007-05-15 |
DE10252776A1 (de) | 2004-07-22 |
US20050232806A1 (en) | 2005-10-20 |
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