CN111470882A - 一种用于牙科的氧化锆表面处理方法 - Google Patents
一种用于牙科的氧化锆表面处理方法 Download PDFInfo
- Publication number
- CN111470882A CN111470882A CN202010135147.7A CN202010135147A CN111470882A CN 111470882 A CN111470882 A CN 111470882A CN 202010135147 A CN202010135147 A CN 202010135147A CN 111470882 A CN111470882 A CN 111470882A
- Authority
- CN
- China
- Prior art keywords
- zirconia
- lithium silicate
- dentistry
- treatment method
- parts
- 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.)
- Granted
Links
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004381 surface treatment Methods 0.000 title claims abstract description 8
- 229910052912 lithium silicate Inorganic materials 0.000 claims abstract description 17
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 11
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 239000012153 distilled water Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 4
- 239000000047 product Substances 0.000 abstract description 6
- 239000011664 nicotinic acid Substances 0.000 abstract description 4
- 239000003479 dental cement Substances 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 210000004513 dentition Anatomy 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5024—Silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dental Preparations (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010135147.7A CN111470882B (zh) | 2020-03-02 | 2020-03-02 | 一种用于牙科的氧化锆表面处理方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010135147.7A CN111470882B (zh) | 2020-03-02 | 2020-03-02 | 一种用于牙科的氧化锆表面处理方法 |
Publications (2)
Publication Number | Publication Date |
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CN111470882A true CN111470882A (zh) | 2020-07-31 |
CN111470882B CN111470882B (zh) | 2022-11-15 |
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CN202010135147.7A Active CN111470882B (zh) | 2020-03-02 | 2020-03-02 | 一种用于牙科的氧化锆表面处理方法 |
Country Status (1)
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116375500A (zh) * | 2023-03-28 | 2023-07-04 | 中国人民解放军空军军医大学 | 一种梯度氧化锆及其制备方法 |
CN116751078A (zh) * | 2023-06-28 | 2023-09-15 | 浙江大学 | 一种基于沉淀-热处理的氧化锆表面微纳结构的制备方法、产品和应用 |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1505041A1 (en) * | 2003-08-07 | 2005-02-09 | Ivoclar Vivadent AG | Lithium silicate materials |
US20050127544A1 (en) * | 1998-06-12 | 2005-06-16 | Dmitri Brodkin | High-strength dental restorations |
CN101932298A (zh) * | 2007-03-06 | 2010-12-29 | 义获嘉·伟瓦登特公司 | 含有钇稳定二氧化锆的牙齿修复体用陶瓷贴面 |
US20110256409A1 (en) * | 2010-04-16 | 2011-10-20 | Ivoclar Vivadent Ag | Lithium Silicate Glass Ceramic and Glass With ZrO2 Content |
CN103080033A (zh) * | 2010-08-24 | 2013-05-01 | 弗朗霍夫应用科学研究促进协会 | 针对由钇稳定二氧化锆制成的牙科修复体的饰面陶瓷以及其涂覆方法 |
CN103431918A (zh) * | 2013-08-27 | 2013-12-11 | 东南大学 | 牙科氧化锆基陶瓷表面处理和提高其粘接性能的新方法 |
KR101450190B1 (ko) * | 2013-11-19 | 2014-10-13 | (주)더스타일코리아 | 리튬 디실리케이트를 이용한 치과용 지르코니아 보철물 및 그 제조방법 |
WO2014206439A1 (de) * | 2013-06-24 | 2014-12-31 | Wdt-Wolz-Dental-Technik Gmbh | Einfärben von poröser keramik |
CN104744035A (zh) * | 2015-03-04 | 2015-07-01 | 暨南大学 | 牙科玻璃部分渗透的功能梯度氧化锆陶瓷材料的制备方法 |
DE102015204109A1 (de) * | 2015-03-06 | 2016-09-08 | Gebr. Brasseler Gmbh & Co. Kg | Sprühbare Verblendkeramik-Zusammensetzung, Verfahren zur Beschichtung von dentalen Restaurationen aus Zirkoniumdioxid und dentale Restauration aus Zirkoniumdioxid |
WO2016142234A1 (de) * | 2015-03-06 | 2016-09-15 | Gebr. Brasseler Gmbh & Co. Kg | Stoffgemisch, sprühbare verblendkeramik-zusammensetzung, verfahren zur beschichtung von dentalen restaurationen aus zirkoniumdioxid und dentale restauration aus zirkoniumdioxid |
CN108585813A (zh) * | 2018-06-13 | 2018-09-28 | 厦门市仿真美义齿科技有限公司 | 一种新型全瓷修复体及其制备方法 |
CN108618969A (zh) * | 2018-02-06 | 2018-10-09 | 北京大学口腔医学院 | 一种仿生陶瓷牙修复体的制作方法 |
CN108751721A (zh) * | 2018-06-15 | 2018-11-06 | 中国人民解放军第四军医大学 | 一种用于牙科氧化锆表面饰瓷的二硅酸锂玻璃陶瓷及其制备方法和应用 |
CN109125801A (zh) * | 2018-07-05 | 2019-01-04 | 广州壹凌医疗器械科技有限公司 | 一种氧化锆表面处理的方法 |
EP3610824A1 (en) * | 2018-08-14 | 2020-02-19 | DENTSPLY SIRONA Inc. | Dental prosthesis |
-
2020
- 2020-03-02 CN CN202010135147.7A patent/CN111470882B/zh active Active
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050127544A1 (en) * | 1998-06-12 | 2005-06-16 | Dmitri Brodkin | High-strength dental restorations |
EP1505041A1 (en) * | 2003-08-07 | 2005-02-09 | Ivoclar Vivadent AG | Lithium silicate materials |
CN101932298A (zh) * | 2007-03-06 | 2010-12-29 | 义获嘉·伟瓦登特公司 | 含有钇稳定二氧化锆的牙齿修复体用陶瓷贴面 |
US20110030423A1 (en) * | 2007-03-06 | 2011-02-10 | Ivoclar Vivadent Ag | Veneer Ceramic for Dental Restorations and Method for Veneering Dental Restorations |
US20110256409A1 (en) * | 2010-04-16 | 2011-10-20 | Ivoclar Vivadent Ag | Lithium Silicate Glass Ceramic and Glass With ZrO2 Content |
CN103080033A (zh) * | 2010-08-24 | 2013-05-01 | 弗朗霍夫应用科学研究促进协会 | 针对由钇稳定二氧化锆制成的牙科修复体的饰面陶瓷以及其涂覆方法 |
WO2014206439A1 (de) * | 2013-06-24 | 2014-12-31 | Wdt-Wolz-Dental-Technik Gmbh | Einfärben von poröser keramik |
CN103431918A (zh) * | 2013-08-27 | 2013-12-11 | 东南大学 | 牙科氧化锆基陶瓷表面处理和提高其粘接性能的新方法 |
KR101450190B1 (ko) * | 2013-11-19 | 2014-10-13 | (주)더스타일코리아 | 리튬 디실리케이트를 이용한 치과용 지르코니아 보철물 및 그 제조방법 |
CN104744035A (zh) * | 2015-03-04 | 2015-07-01 | 暨南大学 | 牙科玻璃部分渗透的功能梯度氧化锆陶瓷材料的制备方法 |
DE102015204109A1 (de) * | 2015-03-06 | 2016-09-08 | Gebr. Brasseler Gmbh & Co. Kg | Sprühbare Verblendkeramik-Zusammensetzung, Verfahren zur Beschichtung von dentalen Restaurationen aus Zirkoniumdioxid und dentale Restauration aus Zirkoniumdioxid |
WO2016142234A1 (de) * | 2015-03-06 | 2016-09-15 | Gebr. Brasseler Gmbh & Co. Kg | Stoffgemisch, sprühbare verblendkeramik-zusammensetzung, verfahren zur beschichtung von dentalen restaurationen aus zirkoniumdioxid und dentale restauration aus zirkoniumdioxid |
CN108618969A (zh) * | 2018-02-06 | 2018-10-09 | 北京大学口腔医学院 | 一种仿生陶瓷牙修复体的制作方法 |
CN108585813A (zh) * | 2018-06-13 | 2018-09-28 | 厦门市仿真美义齿科技有限公司 | 一种新型全瓷修复体及其制备方法 |
CN108751721A (zh) * | 2018-06-15 | 2018-11-06 | 中国人民解放军第四军医大学 | 一种用于牙科氧化锆表面饰瓷的二硅酸锂玻璃陶瓷及其制备方法和应用 |
CN109125801A (zh) * | 2018-07-05 | 2019-01-04 | 广州壹凌医疗器械科技有限公司 | 一种氧化锆表面处理的方法 |
EP3610824A1 (en) * | 2018-08-14 | 2020-02-19 | DENTSPLY SIRONA Inc. | Dental prosthesis |
Non-Patent Citations (9)
Title |
---|
LIU YH等: "self-glazed zirconia reducing the wear to tooth enamel", 《JOURNAL OF THE EUROPEAN CERAMICS SOCIETY》 * |
PETER JEVNIKAR等: "the effect of nano-structured alumina coating on resin-bond strength to zirconia ceramics", 《DENTAL MATERIALS》 * |
TORE DERAND等: "bond strength of composite luting cement to zirconia ceramic surfaces", 《DENTAL MATERIALS》 * |
刘昭影等: "氧化锆表面硅处理的进展", 《口腔医学》 * |
王辰: "氧化锆陶瓷粘接前表面处理方法的研究进展", 《粘接》 * |
赵克: "浅谈-与氧化锆陶瓷修复体粘接强度相关的表面处理技术", 《口腔材料器械杂志》 * |
钱海馨等: "全瓷修复材料的性能及应用", 《口腔医学》 * |
陈超等: "表面融附玻璃陶瓷对氧化锆与树脂粘接强度的影响", 《中华口腔医学杂志》 * |
魏周: "三种冠修复材料与牙釉质牙本质磨耗性能研究", 《中国优秀硕博士学位论文全文数据库(硕士)医药卫生科技辑》 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116375500A (zh) * | 2023-03-28 | 2023-07-04 | 中国人民解放军空军军医大学 | 一种梯度氧化锆及其制备方法 |
CN116375500B (zh) * | 2023-03-28 | 2024-07-12 | 中国人民解放军空军军医大学 | 一种梯度氧化锆及其制备方法 |
CN116751078A (zh) * | 2023-06-28 | 2023-09-15 | 浙江大学 | 一种基于沉淀-热处理的氧化锆表面微纳结构的制备方法、产品和应用 |
CN116751078B (zh) * | 2023-06-28 | 2024-05-14 | 浙江大学 | 一种基于沉淀-热处理的氧化锆表面微纳结构的制备方法、产品和应用 |
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