Production of shaped dental parts composed of porous glass
The invention relates to a blank for producing shaped dental parts which consists entirely of porous glass without crystalline material. The density of the blank is in the range from 50% to 95% of its theoretical density. It has a disc-like shape having a diameter of at least 20 mm. The blank is pro...
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| creator | CRAMER VON CLAUSBRUCH SASCHA WINTERLING MICHAEL REINSHAGEN JOERG |
| description | The invention relates to a blank for producing shaped dental parts which consists entirely of porous glass without crystalline material. The density of the blank is in the range from 50% to 95% of its theoretical density. It has a disc-like shape having a diameter of at least 20 mm. The blank is produced by a process in which glass powder is firstly pressed at a pressure in the range from 10 MPa to 300 MPa and this green body is (pre)sintered at a temperature in the range from 580 DEG C to 750 DEG C to give a blank composed of porous glass without crystalline material. Monolithic shaped dental parts can be obtained from the resulting blank by mechanical machining and subsequent sintering, with a process according to the invention being employed to stabilize the shape of the shaped parts. The glass preferably contains: SiO2 50-80% by weight, Al203 3-24% by weight, K2O 3-13% by weight, Na2O 3-13% by weight, Li2O 0-4% by weight, B2O3 0-4% by weight, F 0-4% by weight, TiO2 0-8% by weight, ZrO2 0-8% by weight, P2O |
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The density of the blank is in the range from 50% to 95% of its theoretical density. It has a disc-like shape having a diameter of at least 20 mm. The blank is produced by a process in which glass powder is firstly pressed at a pressure in the range from 10 MPa to 300 MPa and this green body is (pre)sintered at a temperature in the range from 580 DEG C to 750 DEG C to give a blank composed of porous glass without crystalline material. Monolithic shaped dental parts can be obtained from the resulting blank by mechanical machining and subsequent sintering, with a process according to the invention being employed to stabilize the shape of the shaped parts. The glass preferably contains: SiO2 50-80% by weight, Al203 3-24% by weight, K2O 3-13% by weight, Na2O 3-13% by weight, Li2O 0-4% by weight, B2O3 0-4% by weight, F 0-4% by weight, TiO2 0-8% by weight, ZrO2 0-8% by weight, P2O</description><language>chi ; eng</language><subject>APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE ; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; DENTISTRY ; GLASS ; HUMAN NECESSITIES ; HYGIENE ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; MINERAL OR SLAG WOOL ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131204&DB=EPODOC&CC=CN&NR=103429546A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131204&DB=EPODOC&CC=CN&NR=103429546A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CRAMER VON CLAUSBRUCH SASCHA</creatorcontrib><creatorcontrib>WINTERLING MICHAEL</creatorcontrib><creatorcontrib>REINSHAGEN JOERG</creatorcontrib><title>Production of shaped dental parts composed of porous glass</title><description>The invention relates to a blank for producing shaped dental parts which consists entirely of porous glass without crystalline material. The density of the blank is in the range from 50% to 95% of its theoretical density. It has a disc-like shape having a diameter of at least 20 mm. The blank is produced by a process in which glass powder is firstly pressed at a pressure in the range from 10 MPa to 300 MPa and this green body is (pre)sintered at a temperature in the range from 580 DEG C to 750 DEG C to give a blank composed of porous glass without crystalline material. Monolithic shaped dental parts can be obtained from the resulting blank by mechanical machining and subsequent sintering, with a process according to the invention being employed to stabilize the shape of the shaped parts. The glass preferably contains: SiO2 50-80% by weight, Al203 3-24% by weight, K2O 3-13% by weight, Na2O 3-13% by weight, Li2O 0-4% by weight, B2O3 0-4% by weight, F 0-4% by weight, TiO2 0-8% by weight, ZrO2 0-8% by weight, P2O</description><subject>APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE</subject><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</subject><subject>CHEMISTRY</subject><subject>DENTISTRY</subject><subject>GLASS</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>JOINING GLASS TO GLASS OR OTHER MATERIALS</subject><subject>MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>METALLURGY</subject><subject>MINERAL OR SLAG WOOL</subject><subject>PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES</subject><subject>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</subject><subject>SURFACE TREATMENT OF GLASS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAKKMpPKU0uyczPU8hPUyjOSCxITVFISc0rScxRKEgsKilWSM7PLcgvBooC5Qvyi_JLixXScxKLi3kYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GBsYmRpamJmaMxMWoAhGAvKQ</recordid><startdate>20131204</startdate><enddate>20131204</enddate><creator>CRAMER VON CLAUSBRUCH SASCHA</creator><creator>WINTERLING MICHAEL</creator><creator>REINSHAGEN JOERG</creator><scope>EVB</scope></search><sort><creationdate>20131204</creationdate><title>Production of shaped dental parts composed of porous glass</title><author>CRAMER VON CLAUSBRUCH SASCHA ; WINTERLING MICHAEL ; REINSHAGEN JOERG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN103429546A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2013</creationdate><topic>APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE</topic><topic>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</topic><topic>CHEMISTRY</topic><topic>DENTISTRY</topic><topic>GLASS</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>JOINING GLASS TO GLASS OR OTHER MATERIALS</topic><topic>MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>METALLURGY</topic><topic>MINERAL OR SLAG WOOL</topic><topic>PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES</topic><topic>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</topic><topic>SURFACE TREATMENT OF GLASS</topic><toplevel>online_resources</toplevel><creatorcontrib>CRAMER VON CLAUSBRUCH SASCHA</creatorcontrib><creatorcontrib>WINTERLING MICHAEL</creatorcontrib><creatorcontrib>REINSHAGEN JOERG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CRAMER VON CLAUSBRUCH SASCHA</au><au>WINTERLING MICHAEL</au><au>REINSHAGEN JOERG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Production of shaped dental parts composed of porous glass</title><date>2013-12-04</date><risdate>2013</risdate><abstract>The invention relates to a blank for producing shaped dental parts which consists entirely of porous glass without crystalline material. The density of the blank is in the range from 50% to 95% of its theoretical density. It has a disc-like shape having a diameter of at least 20 mm. The blank is produced by a process in which glass powder is firstly pressed at a pressure in the range from 10 MPa to 300 MPa and this green body is (pre)sintered at a temperature in the range from 580 DEG C to 750 DEG C to give a blank composed of porous glass without crystalline material. Monolithic shaped dental parts can be obtained from the resulting blank by mechanical machining and subsequent sintering, with a process according to the invention being employed to stabilize the shape of the shaped parts. The glass preferably contains: SiO2 50-80% by weight, Al203 3-24% by weight, K2O 3-13% by weight, Na2O 3-13% by weight, Li2O 0-4% by weight, B2O3 0-4% by weight, F 0-4% by weight, TiO2 0-8% by weight, ZrO2 0-8% by weight, P2O</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY DENTISTRY GLASS HUMAN NECESSITIES HYGIENE JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES MEDICAL OR VETERINARY SCIENCE METALLURGY MINERAL OR SLAG WOOL PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
| title | Production of shaped dental parts composed of porous glass |
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