WO2000064402A1 - Dental casting alloy - Google Patents
Dental casting alloy Download PDFInfo
- Publication number
- WO2000064402A1 WO2000064402A1 PCT/CA2000/000454 CA0000454W WO0064402A1 WO 2000064402 A1 WO2000064402 A1 WO 2000064402A1 CA 0000454 W CA0000454 W CA 0000454W WO 0064402 A1 WO0064402 A1 WO 0064402A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alloy
- dental
- casting
- cast
- casting alloy
- 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
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
Definitions
- This invention relates to a dental technique and alloy that can be used in orthopaedic stomatology, and especially in dental castings, restorations and cast removable partial devices, including dental prostheses and dentures.
- the prosthetic device or false tooth application allows to solve tooth defects of the enamel and restore the integrity of the dental arch.
- the prosthesis design is selected on the basis of what is already currently used in modern dental, prosthodontic practice.
- the important requirement for a dental casting alloy is its technological effectiveness when a prosthesis is fabricated.
- parameters such as: the preparation of the alloy and the ratio of components, the purity of the furnace environment, the casting settings and so on play a key function in producing quality castings.
- the production cost and consumer prices are directly related to the limits on possible variations of these parameters.
- Ni; 23% of Cr; 5% of Si, Mn, Al, Nb and the rest is Fe.
- this alloy has improved corrosion resistance and fluidity which is important for casting of prosthetic devices of small dimensions and volume.
- the disadvantage of this material is the low level of biomechanical compatibility.
- the alloy is characterized by high yield point, high hardness, possibility to be machined with drills of usual instrumental steel, high-tensile oxide film under good adhesion toward metallic basis and ceramic coating.
- the disadvantages of this alloy are the low biomechanical compatibility, high specific gravity, and the complexity of technology that requires the formation of a deep vacuum.
- the prosthetic devices made of this prior prototype alloy practically have no shrinkage, they fit on to gypsum models easily thus allowing to reduce the thickness and degree of teeth preparation intended for use with prosthetic devices. Also, these prosthetic devices are not affected by oxidation, thus increasing their service life.
- the disadvantages of the prototype alloy are low elasticity and low biomechanical compatibility.
- the fine-structured elements of the prosthetic devices are affected by high-level mechanical loads, for example, the frames of removable partial prosthetic devices, and since they are not elastic, they are weak. In order to increase the strength of the partial prosthetic devices it would be necessary to increase the volume of material and thus to increase the weight of the prostheses.
- the technical advantages of the invention are an increase in the elastic properties of the new alloy, its related biomechanical compatibility, strength characteristics and strain wear resistance.
- Figs. 1, 2 and 3 are views of partial metal frames of the removable prosthetic devices cast from the alloy of the invention.
- Fig. 4 is a view of a partial prosthetic device cast from the invented casting alloy.
- the dental casting alloy of the invention comprises, in weight %:
- Co 0.1 - 0.5%, preferably 0.2 to 0.4%
- Amounts of Mo below the aforementioned lower limit render the alloy difficult to machine or extrude while amounts above the aforementioned upper limit render the alloy too brittle.
- Amounts of Fe below the aforementioned lower limit reduces the plasticity unfavourably, while amounts above the aforementioned upper limit increase the plasticity to an unfavourable level.
- the available physical and mechanical merits of the invented alloy influences its consumer preference: a) The cast removable partial prosthetic devices exhibit stable and lasting retention of the clasps on the residual supporting teeth. b) There is an improvement on uniformity and the distribution of the masticatory forces along the length of the tooth arch and alveolar ridge. c) There is a possibility to abandon the dampers or resilient attachments used to reduce the masticatory forces for patients with gum or periodontal disease. d) There is a reduction of the harmful action of the prosthetic device retentive clasps or loading on the supporting teeth.
- the invented dental casting alloy was employed in an experimental trial.
- the composition was as follows in weight %: Ti - 45 %; Mo - 1.0 %; Fe - 0.5 %; Cu - 0.5 %; Co - 0.3 %; the balance to 100% was Ni.
- This alloy was processed by means of induction casting.
- the prepared alloy was poured into a unit-cast removable prosthetic device or mold with T-shaped so- called "clammers”.
- the teeth with the mobility levels of III were extracted.
- the cast prosthetic device was applied using supports from rests on three teeth, formula 4,2 _L 5 (with mobilities of II and 1/3 of radicular bone loss).
- Patent No. 2,111,722, A61 13/20 Method to produce cast metallic frame of Dental Prosthesis (prototype).
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Dental Preparations (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00922364A EP1175196A1 (en) | 1999-04-27 | 2000-04-26 | Dental casting alloy |
JP2000613393A JP2002542271A (en) | 1999-04-27 | 2000-04-26 | Dental cast alloy |
AU42793/00A AU4279300A (en) | 1999-04-27 | 2000-04-26 | Dental casting alloy |
CA002369991A CA2369991A1 (en) | 1999-04-27 | 2000-04-26 | Dental casting alloy |
KR1020017013784A KR20020010137A (en) | 1999-04-27 | 2000-04-26 | Dental casting alloy |
US10/039,712 US20020146342A1 (en) | 1999-04-27 | 2001-10-26 | Dental casting alloy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU99109384 | 1999-04-27 | ||
RU99109384/14A RU2162667C2 (en) | 1999-04-27 | 1999-04-27 | Casting dentistry alloy |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/039,712 Continuation US20020146342A1 (en) | 1999-04-27 | 2001-10-26 | Dental casting alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000064402A1 true WO2000064402A1 (en) | 2000-11-02 |
Family
ID=20219427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2000/000454 WO2000064402A1 (en) | 1999-04-27 | 2000-04-26 | Dental casting alloy |
Country Status (8)
Country | Link |
---|---|
US (1) | US20020146342A1 (en) |
EP (1) | EP1175196A1 (en) |
JP (1) | JP2002542271A (en) |
KR (1) | KR20020010137A (en) |
AU (1) | AU4279300A (en) |
CA (1) | CA2369991A1 (en) |
RU (1) | RU2162667C2 (en) |
WO (1) | WO2000064402A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100972151B1 (en) * | 2010-04-13 | 2010-07-26 | (주)국민통신 | Connector for a cable of a terminal box and the method of construction designed by the connector |
KR101033644B1 (en) * | 2010-11-11 | 2011-05-12 | 주식회사 한국코아엔지니어링 | Cable junction system for information communication |
CN106265088A (en) * | 2014-11-10 | 2017-01-04 | 蒋春花 | A kind of hardness is high, have the baking-ceramic tooth composite of fungistatic effect |
CN105349830A (en) * | 2015-08-18 | 2016-02-24 | 孙春红 | Material used for preparing medical false tooth |
CN107630151B (en) * | 2016-07-18 | 2019-12-03 | 中国科学院金属研究所 | A kind of beta titanium alloy with antibacterial and promotion knitting function |
RU2687581C1 (en) * | 2018-05-17 | 2019-05-15 | Наринэ Адольфовна Узунян | Method of dental implantation |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0271735A (en) * | 1988-09-06 | 1990-03-12 | Tokin Corp | Orthodontic tool |
EP0465030A2 (en) * | 1990-06-29 | 1992-01-08 | Ormco Corporation | Orthodontic appliances for moving teeth |
JPH05271032A (en) * | 1992-03-30 | 1993-10-19 | Daido Steel Co Ltd | Artificial dental root |
JPH0987783A (en) * | 1995-09-20 | 1997-03-31 | Daido Steel Co Ltd | Low melting point titanium alloy for dental treatment |
-
1999
- 1999-04-27 RU RU99109384/14A patent/RU2162667C2/en active
-
2000
- 2000-04-26 AU AU42793/00A patent/AU4279300A/en not_active Abandoned
- 2000-04-26 CA CA002369991A patent/CA2369991A1/en not_active Abandoned
- 2000-04-26 WO PCT/CA2000/000454 patent/WO2000064402A1/en active Search and Examination
- 2000-04-26 KR KR1020017013784A patent/KR20020010137A/en not_active Application Discontinuation
- 2000-04-26 EP EP00922364A patent/EP1175196A1/en not_active Withdrawn
- 2000-04-26 JP JP2000613393A patent/JP2002542271A/en active Pending
-
2001
- 2001-10-26 US US10/039,712 patent/US20020146342A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0271735A (en) * | 1988-09-06 | 1990-03-12 | Tokin Corp | Orthodontic tool |
EP0465030A2 (en) * | 1990-06-29 | 1992-01-08 | Ormco Corporation | Orthodontic appliances for moving teeth |
JPH05271032A (en) * | 1992-03-30 | 1993-10-19 | Daido Steel Co Ltd | Artificial dental root |
JPH0987783A (en) * | 1995-09-20 | 1997-03-31 | Daido Steel Co Ltd | Low melting point titanium alloy for dental treatment |
Non-Patent Citations (3)
Title |
---|
DATABASE WPI Section Ch Week 199016, Derwent World Patents Index; Class D21, AN 1990-120585, XP002145468 * |
DATABASE WPI Section Ch Week 199346, Derwent World Patents Index; Class D21, AN 1993-365106, XP002145467 * |
DATABASE WPI Section Ch Week 199723, Derwent World Patents Index; Class D21, AN 1997-255964, XP002145466 * |
Also Published As
Publication number | Publication date |
---|---|
KR20020010137A (en) | 2002-02-02 |
US20020146342A1 (en) | 2002-10-10 |
AU4279300A (en) | 2000-11-10 |
RU2162667C2 (en) | 2001-02-10 |
EP1175196A1 (en) | 2002-01-30 |
JP2002542271A (en) | 2002-12-10 |
CA2369991A1 (en) | 2000-11-02 |
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