WO2006108677A1 - Device and process for dimensionally stable sintering of ceramic pre-shaped articles - Google Patents
Device and process for dimensionally stable sintering of ceramic pre-shaped articles Download PDFInfo
- Publication number
- WO2006108677A1 WO2006108677A1 PCT/EP2006/003462 EP2006003462W WO2006108677A1 WO 2006108677 A1 WO2006108677 A1 WO 2006108677A1 EP 2006003462 W EP2006003462 W EP 2006003462W WO 2006108677 A1 WO2006108677 A1 WO 2006108677A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- suspension
- article
- sintered
- suspension element
- base structure
- Prior art date
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
- A61C13/12—Tools for fastening artificial teeth; Holders, clamps, or stands for artificial teeth
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/486—Fine ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- 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
- A61C13/0022—Blanks or green, unfinished dental restoration parts
Definitions
- the present invention relates to sintering of ceramic pre-shaped articles, particularly dental .0 articles such as dental prosthesis.
- the present invention relates to a device and process for dimensionally stable sintering of ceramic pre-shaped dental articles.
- dental prosthesis is to be understood here in the broadest sense and is intended to include all types of dental replacement like, for example, bridges (e.g., multi-unit bridges), .5 implants, and dental prostheses in the narrower sense, but also parts of such dental prostheses like, for example, bridge substructures or copings onto which a veneering must still be applied in order to obtain the finished bridge.
- bridges e.g., multi-unit bridges
- .5 implants e.g., multi-unit bridges
- dental prostheses in the narrower sense, but also parts of such dental prostheses like, for example, bridge substructures or copings onto which a veneering must still be applied in order to obtain the finished bridge.
- the scanner captures the three-dimensional surface of a dentition impression and passes on the captured data to the CAD system.
- the user can modify these surface data as desired, and calculate CNC data from said shape data using a CAM software, and then send the corresponding CNC data to the NC-milling machine.
- the NC-milling machine processes a
- ceramic bridge frameworks are sintered on pegs made of alumina oxide or hangers made from a platinum
- Such pegs or hangers are placed on a honeycomb-like sintering tray in order to fit the framework geometry. This allows the framework to make any linear movement induced by said shrinkage.
- anterior bridges are placed on one peg per coping at the exterior copings.
- Posterior bridges are placed on one hanger on the outer connector areas on either side.
- Such mounting technique is used for three- and four-unit bridges with two abutments as an outer unit and one or two pontics in between. This is described, for example, in WO 00/46166.
- WO 00/46166 suggests supports that are not coated with metal and which adapt independently to the shrinkage dimensions which occur during the firing process.
- WO 00/46166 describes as one example a support having at least two S-shaped hangers. The two S-shaped hangers are hung up on a horizontal bar. The bridge framework is mounted on the at least two S-shaped hangers.
- Such assembly provides for one swivel point for the article to be sintered.
- the two S-shaped hangers can swivel at the point where they are hung up on the horizontal bar.
- the ceramic framework is placed on ceramic balls or ceramic bulk material which is then placed in a container for sintering.
- the present invention provides a device for dimensionally stable sintering of ceramic pre-shaped dental articles, comprising a suspension system having a) a base structure with at least one suspension point at a height suitable for suspending an article to be sintered; and b) a suspension element moveably connected to the suspension point for supporting said article to be sintered, wherein the suspension element itself forms a swing on which said
- the base structure thus provides a suspension point for the suspension element at a suitable height.
- the suspension point is provided in the upper half of the base structure (the term "upper half as used herein relates to a base structure being arranged in vertical direction). More preferably, the suspension point is provided at or adjacent the upper end of the base structure.
- the base structure of the present invention preferably comprises two suspension points and the suspension element is connected to both of them.
- the base structure comprises rods, thin bars, or tubes, respectively, that are mountable to a support.
- the base structure such as rods or tubes are substantially vertically mounted on the support.
- the rods or tubes are loosely inserted into the holes of a honey-comb structure.
- the rods or tubes are hold substantially vertically by the support. Since the rods or tubes are preferably loosely received by the honey-comb structure, they will typically not strictly stand perpendicular to the honeycomb structure but will rather deviate from the perpendicular line by a small angle. Such deviation is included in the term "substantially vertical" used herein.
- the base structure comprises a horizontally arranged structure such as rods, tubes, stretched wires, ropes, or yarns that are substantially horizontally supported at or adjacent their opposing ends by respective opposing supports.
- the suspension element is then for example hung or hinged to such base structure which establishes the suspension point of the base structure.
- the present invention provides a device for dimensionally stable sintering of ceramic pre-shaped dental articles having a suspension system that preferably provides at least two swivel points for the article to be sintered, i.e. additional swivel points in comparison to conventional systems.
- a first swivel point is provided at the connection between the base structure and the suspension element, i.e., at the suspension point of the base structure, and a further swivel point is provided at the contact area between the article and the suspension element.
- the at least two swivel points are preferably located above the point of contact between the suspension system and the support, e.g., a honey-comb structure.
- the swivel points are located along lines being parallel and perpendicular to the longitudinal axis of the article.
- the first swivel point at the suspension point is located above the center of mass of the sintering article.
- the base structure comprises two spaced apart rods.
- each of the rods is preferably adapted to moveably hold opposing end portions of the suspension element.
- each of the rods comprises an eyelet at its upper end portion to which the suspension element is moveably linked.
- the suspension element comprises corresponding counter-eyelets.
- the eyelets provide the suspension points already mentioned above.
- boreholes are provided at the upper end of each rod to receive the suspension element.
- the link between the suspension element and the tube is preferably provided in that the suspension element (for example a swing formed by a wire) is inserted into an opening at the upper end of the tube.
- the suspension point is provided by a welded joint or adhesive joint. The required flexibility of the suspension 5 element is then obtained by using an elastic or plastic swing, for example.
- the suspension element is an integral swing, preferably U-shaped.
- the suspension element is formed of a plurality of moveably linked sections.
- Such a multi-link suspension element provides a plurality 0 of swivel points.
- the moveably linked sections of the suspension element are preferably linked by eyelets.
- the suspension system is preferably made of a material which is inert vis-a-vis the sintering process and does not result in adhesion to the article and does not contaminate the latter.
- the material is a platinum / rhodium (90/10), dispersion hardened-alloy wire.
- the wire is coated with a coating adapted to prevent that the individual sections of the suspension system stick together during the final phase of the sintering process.
- such coating is a coating with nano sized oxides such as silica, alumina, or zirconia, or other refractory oxides.
- the suspension system is made of wire material.
- the base structure such as a rod as well as the suspension element are made from such wire material. More preferably, a thin wire is used. In case of such a thin wire, the base structure and the suspension element are preferably formed as an integral structure, i.e., from a single thin wire.
- suspension points providing said swivel points are provided.
- a temperature resistant rope or yarn can be used as an alternative to making the suspension element of a wire material.
- the present invention provides a process for dimensionally stable sintering of ceramic pre-shaped dental articles, comprising the steps of a) providing a suspension system with base structure with at least one suspension point at a height suitable for suspending an article to be sintered, and a suspension element moveably connected to said suspension point for supporting said article to be sintered, wherein said suspension element itself forms a swing; and b) placing said article to be sintered onto said swing.
- the base structure of the suspension system is mounted on a support, more preferably
- honey-comb structure such as a honey-comb sintering tray.
- a fiber cushion or a layer of sand or beads is also encompassed by the present invention.
- the connection between the base structure and the support is preferably a flexible or inflexible plug connection, or a fixed permanent connection.
- a flexible connection such as a loose mounting in a honey-comb structure provides one or more additional swivel points between the basic structure and the
- the device and process of the present invention compensate for friction and effects of ⁇ 5 gravity during the shrinkage/firing process.
- Fig. 1 shows a schematic view of an exemplary framework of a 4-unit bridge
- Fig. 2 shows the bridge of Fig. 1 supported by two suspension system according to a first embodiment of the device of the present invention
- Fig. 3 shows the two suspension systems of Fig. 2 without the ceramic bridge framework
- Fig. 4 shows a side view of a preferred suspension system according to a first embodiment of the device of the present invention
- 5 shows an alternative preferred version of the suspension system of the first embodiment of the present invention
- Figs. 6a, 6b show a schematic view of the preferred base structure of the embodiment of Fig.
- Figs. 7a, 7b show a schematic view of the preferred base structure of the embodiment of Fig. 0 4;
- Figs. 8a, 8b show a schematic view of the preferred suspension element of the embodiment of
- Fig. 2; Figs. 9a, 9b show a schematic view of a further preferred suspension element of the present invention
- Fig. 10 shows a schematic view of a suspension system according to a second embodiment of the present invention.
- Fig. 11 shows a schematic side view of Fig. 10
- Fig. 12 shows how a suspension system is formed according to the second embodiment of the present invention
- Fig. 13 shows a practical realization of the example shown at the right in Fig. 12;
- Fig. 14 shows an even more simple practical realization of the second embodiment of the present invention.
- Fig. 1 shows a schematic view of an exemplary bridge framework 1 of a 4-unit bridge comprising two abutments 2 at the two opposite ends, two pontics 3 in between, and the respective three connectors 4.
- Fig. 1 also shows how the longitudinal axis A of the bridge framework 1 is defined.
- Fig. 2 shows the bridge of Fig. 1 supported by two suspension systems 10 according to a first embodiment of the present invention.
- each suspension system 10 comprises a base structure in the form of two spaced apart rods 11 (see, for example, Fig. 4).
- the rods 11 are mounted in a support.
- the support is provided as a honey-comb structure 100 having indentations or holes 101 for receiving the lower ends of the rods 11.
- Each rod 11 comprises a suspension point.
- each suspension point is provided as an eyelet 12 at the upper end portion of each rod 11.
- a swing 13 forms a suspension element for the bridge framework 1. The swing is moveably hold at its
- each swing 13 comprises eyelets at its opposing ends (not shown in Fig. 2 but in Fig. 8b), and is moveably linked by its eyelets to the rods 11 at the eyelets 12 of the rods (see also Fig. 4).
- the arrows in Fig. 2 point to the swivel points 14 that are provided by the device of the embodiment shown in Fig. 2.
- a first swivel point 14 is provided by the eyelets of the rods 11 to which the swings 13 are moveably linked.
- swivel point 14 is provided at the point of contact of the swing 13 to the bridge framework 1. Owing to these two swivel points provided at each suspension system 10, the bridge framework 1 is able to easily shrink in a stress-free manner. If the bridge framework 1 shrinks in its longitudinal direction, the swings 13 can easily follow the shrinkage due to the swivel points 14 of the entire suspension system 10, and the swings 13 do not block shrinkage.
- Fig. 3 shows the two suspension systems of Fig. 2 without the ceramic bridge framework.
- Fig. 4 shows a side view of a preferred suspension system 10 according to a first embodiment of the device of the present invention. Like the suspension system 10 of Fig. 2, the suspension
- ,0 system of Fig. 4 comprises two rods 11, and a swing 13 moveably linked to the rods 11 by eyelets 12.
- the two rods 11 are connected with each other by means of an additional connecting rod 15 that extends from one rod 11 to the other rod 11.
- the connecting rod 15 extends substantially perpendicular to the rods 11. The connecting rod 15 provides additional overall stability to the suspension system 10.
- Fig. 5 shows an alternative preferred version of the suspension system 10 of the first embodiment of the present invention.
- the suspension system 20 shown in Fig. 5 comprises two base structures in the form of tubes 21. Furthermore, a swing 22 is provided. In this embodiment, the swing 22 is insertable with its opposite ends into openings or boreholes at the upper ends of
- a swivel point 23 is provided at the upper end of each base structure.
- the swing 22 is elastic so that additional flexibility and moveability is obtained.
- Figs. 6a and 6b show the preferred base structure of the embodiment of Fig. 2 having the rod 11 and the eyelet 12.
- Fig. 6a is a view in longitudinal direction of the framework (not shown in this Figure), and
- Fig. 6b is a side view.
- Figs. 7a and 7b show the same views for the base structure having the horizontal connecting rod.
- the swing 13 according to the preferred embodiment of the present invention is shown in more 5 detail in Figs. 8a and 8b.
- eyelets 16 provided at the opposing ends of swing 13 are shown in Fig. 8b.
- Swing 13 shown in Figs 8a and 8b can be considered as a "swing in one section", i.e., the swing consists of one section with eyelets 16 at the opposing ends providing a link with corresponding
- a swing having n sections is provided.
- the individual sections are moveably linked with each other by means of eyelets.
- a second preferred embodiment of the present invention is shown.
- a combination of vertical and horizontal supports is used to provide a base structure for a suspension element.
- Fig. 10 shows a side view of a post 51 and two horizontally extending tubes or rods 52 that are supported by the post 51.
- Fig. 11 which is a side view if the arrangement shown in Fig. 10, rods or tubes 52 are supported at or adjacent their opposing ends by two posts 51.
- Fig. 12 exemplary shows how a suspension systems can be formed according to the second embodiment of the present invention.
- four tubes 52 are shown, which define two pairs
- the suspension element comprises a U-shaped swing 53 and intermediate sections 54 between the opposing ends of the swing 53 and the tubes 52.
- the intermediate sections 54 also comprise eyelets 55 at the opposing ends thereof, for connecting one end to the eyelet of the swing, and the other end to the tube 52.
- suspension system shown in Fig. 12 comprises two intermediate sections 54 at each end of the swing 53. Therefore, the entire suspension element is moveable in all directions.
- Fig. 13 shows a practical realization of the example shown at the right in Fig. 12.
- the picture shows at the left side one post, two horizontal tubes, and the suspension system supporting a 4- unit bridge framework.
- Fig. 14 shows an even more simple practical realization of the second embodiment of the present invention.
- the U-shaped swing is supported by the horizontal bars without any intermediate section.
- the sintered bridge framework obtained from the Example and the Comparative Example explained in detail below were each fit with light pressure onto the matching model, i.e., a saw cut model of a patient's mouth situation.
- a Certified Dental Technician judged the fit of the sintered framework on the model using stereo microscope with a 10-X magnification without any other auxiliary equipment.
- the degree of fit of the finished ceramic framework was judged by the following criteria:
- a ceramic bridge framework was produced using a computer-aided design and milling process available from 3M ESPE AG (LavaTM system describe above).
- the bridge comprised three abutments and one pontics, having a total length of 32 mm and a total weight of 3.4 grams.
- This framework is referred to hereafter as Model Typel.
- the bridge framework was not colored prior to sintering.
- Wire Type A Two sintering wires were used in the Example which comprised a platinum / rhodium (90/10), 5 dispersion hardened-alloy wire.
- the support wire has a diameter of: 0.75 and 0.65 mm, and the cradle had a diameter of 0.35 mm.
- Each support wire hereafter referred to as Wire Type A, consisted of two parts:
- a rigid support frame consisting of two upright posts rigidly connected in a parallel fashion by a horizontal bar; and [0 2) a cradle suspended between the two upright posts of the frame in a hinged or movable manner.
- Such support system corresponds to the one shown in Fig. 4, for example.
- the sintering wires of this Example were first supported in an conventional upright manner, that is, by inserting the lower end of each of the vertical posts of the sintering wire loosely into a honeycomb ceramic block to a depth of about 11 mm.
- the ceramic bridge framework for the bridge was then laid with the outer connectors of the bridge in a cradle so that the bridge framework was supported near each end by a sintering wire.
- the bridge framework was then subjected to a sintering process recommended by 3M ESPE AG, i.e., with a temperature cycle of: room temperature -> 1500°C, heating rate 10 K / min, while being supported on the sintering wires that , in turn were held upright by the honeycomb block.
- Bridge frameworks corresponding to Model 1 were sintered using identical conditions to those of the above-described Example, with the exception that conventional sintering wires currently available from by 3M ESPE AG for use with the LAVATM system were employed (3M ESPE Product number: 335000 52312 LavaTMTherm Bridge Holder).
- These sintering wires referred to as Wire Type X hereafter, also comprise a platinum / rhodium (90/10) (dispersion hardened) alloy wire having a diameter of 0.75 mm.
- the cradle for support of the framework of the conventional wire is rigidly attached to two upright posts. Furthermore, no cross bar connected the two posts.
- the sintering wire employed in the Comparative Example was a single-piece wire with no movable parts, comprising two upright posts connected rigidly to one another by means of a cradle.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dentistry (AREA)
- Public Health (AREA)
- Inorganic Chemistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Veterinary Medicine (AREA)
- Composite Materials (AREA)
- Dental Prosthetics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002604435A CA2604435A1 (en) | 2005-04-13 | 2006-04-13 | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
DE602006009784T DE602006009784D1 (en) | 2005-04-13 | 2006-04-13 | DEVICE AND METHOD FOR DIMENSIONAL STABILIZING SINTERING CERAMIC ARTICLES |
JP2008505830A JP2008535598A (en) | 2005-04-13 | 2006-04-13 | Dimensionally stable sintering apparatus and method for ceramic preformed articles |
US11/911,415 US8119058B2 (en) | 2005-04-13 | 2006-04-13 | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
AT06724345T ATE445581T1 (en) | 2005-04-13 | 2006-04-13 | DEVICE AND METHOD FOR DIMENSIONALLY STABLE SINTERING OF PREFORMED CERAMIC ARTICLES |
EP06724345A EP1868961B1 (en) | 2005-04-13 | 2006-04-13 | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
AU2006233725A AU2006233725A1 (en) | 2005-04-13 | 2006-04-13 | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05008070A EP1712534A1 (en) | 2005-04-13 | 2005-04-13 | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
EP05008070.4 | 2005-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006108677A1 true WO2006108677A1 (en) | 2006-10-19 |
Family
ID=34935110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/003462 WO2006108677A1 (en) | 2005-04-13 | 2006-04-13 | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
Country Status (10)
Country | Link |
---|---|
US (1) | US8119058B2 (en) |
EP (2) | EP1712534A1 (en) |
JP (1) | JP2008535598A (en) |
KR (1) | KR20080006604A (en) |
CN (1) | CN101193838A (en) |
AT (1) | ATE445581T1 (en) |
AU (1) | AU2006233725A1 (en) |
CA (1) | CA2604435A1 (en) |
DE (1) | DE602006009784D1 (en) |
WO (1) | WO2006108677A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008098157A1 (en) | 2007-02-08 | 2008-08-14 | 3M Innovative Properties Company | Colouring solution for dental ceramic framework and related methods |
US8119058B2 (en) | 2005-04-13 | 2012-02-21 | 3M Innovative Properties Company | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
US10065895B2 (en) | 2007-07-23 | 2018-09-04 | 3M Innovative Properties Company | Colouring solution for dental ceramic articles and related methods |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1486476B1 (en) * | 2003-06-13 | 2005-11-09 | 3M Espe AG | Uniformly coloured ceramic framework and colouring solution |
EP1992302A1 (en) | 2007-05-15 | 2008-11-19 | 3M Innovative Properties Company | Method of making a facing for a dental restoration, facing for a dental restoration, and method of making a dental restoration |
GB0822751D0 (en) | 2008-12-15 | 2009-01-21 | 3M Innovative Properties Co | Method of making a dental restoration, and system for design and manufacturing a dental restoration |
CN101456741B (en) * | 2008-12-29 | 2012-01-18 | 陕西宝光陶瓷科技有限公司 | Process for preparing ceramic cartridge for super long type high voltage fuse |
EP2406570B1 (en) | 2009-03-12 | 2016-01-27 | 3M Innovative Properties Company | System and method for sintering dental restorations |
US8835004B2 (en) | 2009-03-20 | 2014-09-16 | 3M Innovative Properties Company | Sintering support comprising fully stabilized zirconia outer surface and crystalline phase composition, and method of making thereof |
US10383709B2 (en) * | 2012-10-12 | 2019-08-20 | Nobel Biocare Services Ag | Dental bar |
CN105007883B (en) | 2013-03-12 | 2018-03-27 | 3M创新有限公司 | Assign the coloring solution of dental polishing fluorescence |
EP2792332B1 (en) * | 2013-04-18 | 2015-03-11 | Amann Girrbach AG | Assembly comprising at least one workpiece to be sintered |
AT516076B1 (en) * | 2014-07-18 | 2017-05-15 | Heinrich Steger | Apparatus for sintering a dental workpiece |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05279224A (en) * | 1992-04-01 | 1993-10-26 | Lion Corp | Production of dental ceramic sintered compact |
DE19904523A1 (en) * | 1999-02-04 | 2000-08-10 | Espe Dental Ag | Process for dimensionally accurate sintering of ceramics |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1889928A (en) * | 1929-05-20 | 1932-12-06 | Ferro Enamel Corp | Furnace |
US2249890A (en) * | 1937-09-22 | 1941-07-22 | Droge Gerard George Johan | Process of making porcelain dental appliances |
US3897056A (en) * | 1973-10-16 | 1975-07-29 | Turco Mfg Co | Safety strap swing seat |
JPH10182243A (en) * | 1996-12-18 | 1998-07-07 | Ngk Insulators Ltd | Production of ceramic long sized body |
EP1712534A1 (en) | 2005-04-13 | 2006-10-18 | 3M Innovative Properties Company | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
-
2005
- 2005-04-13 EP EP05008070A patent/EP1712534A1/en not_active Withdrawn
-
2006
- 2006-04-13 CN CNA2006800208893A patent/CN101193838A/en active Pending
- 2006-04-13 AU AU2006233725A patent/AU2006233725A1/en not_active Abandoned
- 2006-04-13 CA CA002604435A patent/CA2604435A1/en not_active Abandoned
- 2006-04-13 DE DE602006009784T patent/DE602006009784D1/en active Active
- 2006-04-13 WO PCT/EP2006/003462 patent/WO2006108677A1/en active Application Filing
- 2006-04-13 US US11/911,415 patent/US8119058B2/en not_active Expired - Fee Related
- 2006-04-13 KR KR1020077026223A patent/KR20080006604A/en not_active Application Discontinuation
- 2006-04-13 EP EP06724345A patent/EP1868961B1/en not_active Not-in-force
- 2006-04-13 JP JP2008505830A patent/JP2008535598A/en not_active Withdrawn
- 2006-04-13 AT AT06724345T patent/ATE445581T1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05279224A (en) * | 1992-04-01 | 1993-10-26 | Lion Corp | Production of dental ceramic sintered compact |
DE19904523A1 (en) * | 1999-02-04 | 2000-08-10 | Espe Dental Ag | Process for dimensionally accurate sintering of ceramics |
WO2000046166A1 (en) * | 1999-02-04 | 2000-08-10 | 3M Espe Ag | Method for dimensionally sintering ceramics |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 018, no. 061 (C - 1160) 2 February 1994 (1994-02-02) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8119058B2 (en) | 2005-04-13 | 2012-02-21 | 3M Innovative Properties Company | Device and process for dimensionally stable sintering of ceramic pre-shaped articles |
WO2008098157A1 (en) | 2007-02-08 | 2008-08-14 | 3M Innovative Properties Company | Colouring solution for dental ceramic framework and related methods |
US10065895B2 (en) | 2007-07-23 | 2018-09-04 | 3M Innovative Properties Company | Colouring solution for dental ceramic articles and related methods |
Also Published As
Publication number | Publication date |
---|---|
US20080286718A1 (en) | 2008-11-20 |
CA2604435A1 (en) | 2006-10-19 |
US8119058B2 (en) | 2012-02-21 |
AU2006233725A1 (en) | 2006-10-19 |
ATE445581T1 (en) | 2009-10-15 |
CN101193838A (en) | 2008-06-04 |
EP1712534A1 (en) | 2006-10-18 |
EP1868961A1 (en) | 2007-12-26 |
KR20080006604A (en) | 2008-01-16 |
DE602006009784D1 (en) | 2009-11-26 |
EP1868961B1 (en) | 2009-10-14 |
JP2008535598A (en) | 2008-09-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8119058B2 (en) | Device and process for dimensionally stable sintering of ceramic pre-shaped articles | |
AU768457B2 (en) | Method for dimensionally sintering ceramics | |
EP2365786B1 (en) | Method of producing a dental restoration, dental restoration and use thereof | |
Lüthy et al. | Strength and reliability of four-unit all-ceramic posterior bridges | |
Choi et al. | Retentive Properties of Two Stud Attachments with Polyetherketoneketone or Nylon Insert in Mandibular Implant Overdentures. | |
Örtorp et al. | Comparisons of precision of fit between cast and CNC-milled titanium implant frameworks for the edentulous mandible. | |
McLaren et al. | Ceramics in dentistry—part I: classes of materials | |
Branchi et al. | Resistance to wear of four matrices with ball attachments for implant overdentures: a fatigue study | |
US20100248189A1 (en) | Method of making a facing for a dental restoration, facing for a dental restoration, and method of making a dental restoration | |
JPH05103798A (en) | Artificial tooth producing device adaptable individually for elements provided in dentine and joint | |
US5221203A (en) | Cast dental model articulator | |
Reimann et al. | Strength analysis of a three-unit dental bridge framework with the Finite Element Method | |
Nawafleh et al. | The impact of core/veneer thickness ratio and cyclic loading on fracture resistance of lithium disilicate crown | |
WO2013082434A1 (en) | Positioning jig and improved methods to design and manufacture dental implants | |
Zheng et al. | Finite element analysis to compare stress distribution of gold alloy, lithium‐disilicate reinforced glass ceramic and zirconia based fixed partial denture | |
US7279238B2 (en) | Pressable glass-ceramics with textured microstructure | |
BR112018011582B1 (en) | PREFORM FOR A CAD/CAM MACHINING APPARATUS, PROCESS TO MANUFACTURE THE PREFORM, COMPOSITE FIBER FOR AN ENGRAVING NUCLEUS AND USE OF THE PREFORM | |
Tobar et al. | Influence of Digital Technologies and Framework Design on the Load to Fracture of Co‐Cr Posterior Fixed Partial Denture Frameworks | |
Ozen et al. | Three-dimensional finite element stress analysis of different core materials in maxillary implant-supported fixed partial dentures. | |
JP2006255127A (en) | Orthodontic treatment support system and indicator member and arrangement apparatus used in the system | |
CN110099650A (en) | Artificial tooth | |
RU17849U1 (en) | ARTICULATOR | |
Abdel Hamid et al. | Vertical Marginal gap and internal fit of two types of fully anatomic zirconia crowns constructed by different CAD/CAM system | |
CN207759862U (en) | A kind of lifter for building construction fixing device | |
Jirajariyavej et al. | Marginal and internal gaps of crown and bridge substructure of two all-ceramic systems |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2604435 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008505830 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006233725 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006724345 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020077026223 Country of ref document: KR |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: RU |
|
ENP | Entry into the national phase |
Ref document number: 2006233725 Country of ref document: AU Date of ref document: 20060413 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2006233725 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200680020889.3 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2006724345 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11911415 Country of ref document: US |