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1. WO2020138316 - CALCINED ZIRCONIA OBJECT SUITABLE FOR DENTISTRY

Publication Number WO/2020/138316
Publication Date 02.07.2020
International Application No. PCT/JP2019/051188
International Filing Date 26.12.2019
IPC
A61K 6/849 2020.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
6Preparations for dentistry
80Preparations for artificial teeth, for filling teeth or for capping teeth
849comprising inorganic cements
C01G 25/00 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
25Compounds of zirconium
A61C 13/083 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
13Dental prostheses; Making same
08Artificial teeth; Making same
083Porcelain or ceramic teeth
C04B 35/486 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
48based on zirconium or hafnium oxides or zirconates or hafnates
486Fine ceramics
CPC
A61C 13/083
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
13Dental prostheses; Making same
08Artificial teeth; Making same
083Porcelain or ceramic teeth
A61K 6/849
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
6Preparations for dentistry
80Preparations for artificial teeth, for filling teeth or for capping teeth
849comprising inorganic cements
C01G 25/00
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
25Compounds of zirconium
C04B 35/486
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
35Shaped ceramic products characterised by their composition
01based on oxide ceramics
48based on zirconium or hafnium oxides, zirconates, ; zircon; or hafnates
486Fine ceramics
Applicants
  • クラレノリタケデンタル株式会社 KURARAY NORITAKE DENTAL INC. [JP]/[JP]
Inventors
  • 加藤 新一郎 KATO Shinichiro
  • 伊藤 承央 ITO Yoshihisa
Agents
  • 鎌田 耕一 KAMADA Koichi
  • 田村 康晃 TAMURA Yasuaki
Priority Data
2018-24566727.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CALCINED ZIRCONIA OBJECT SUITABLE FOR DENTISTRY
(FR) OBJET EN ZIRCONE CALCINÉE CONVENANT À LA DENTISTERIE
(JA) 歯科用に好適なジルコニア仮焼体
Abstract
(EN)
The present invention provides a calcined zirconia object that provides a sintered body that has, even when obtained by sintering for a short period of time, strength and translucency suitable for dentistry (in particular, use at a dental clinic). The present invention pertains to a calcined zirconia object provided with multiple layers which each contain zirconia and a stabilizing agent capable of suppressing phase transition of zirconia, wherein the main crystal system of the zirconia is a monoclinic system, and the content rate of the stabilizing agent with respect to the total mol of zirconia and the stabilizing agent is different among said layers.
(FR)
La présente invention concerne un objet en zircone calcinée qui fournit un corps fritté qui a, même lorsqu'il est obtenu par frittage pendant une courte période de temps, une résistance et une translucidité appropriées pour la dentisterie (en particulier, l'utilisation dans une clinique dentaire). La présente invention concerne un objet en zircone calcinée ayant de multiples couches qui contiennent chacune de la zircone et un agent de stabilisation capable d'inhiber la transition de phase de la zircone, le système cristallin principal de la zircone étant un système monoclinique, et la teneur en l'agent de stabilisation vis-à-vis de la mole totale de zircone et en agent de stabilisation étant différente parmi lesdites couches.
(JA)
本発明は、短時間焼成でも、焼成後の焼結体が歯科用(特に歯科医院での使用)として好適な透光性と強度を有するジルコニア仮焼体を提供する。本発明は、ジルコニアと、ジルコニアの相転移を抑制可能な安定化剤と、を含有し、ジルコニアの主たる結晶系が単斜晶系であり、ジルコニアと安定化剤の合計molに対する安定化剤の含有率が異なる複数の層を備える、ジルコニア仮焼体に関する。
Also published as
JP2020562423
Latest bibliographic data on file with the International Bureau