WO2002068358A1 - Ciment a base de phosphate de calcium - Google Patents
Ciment a base de phosphate de calcium Download PDFInfo
- Publication number
- WO2002068358A1 WO2002068358A1 PCT/JP2001/004998 JP0104998W WO02068358A1 WO 2002068358 A1 WO2002068358 A1 WO 2002068358A1 JP 0104998 W JP0104998 W JP 0104998W WO 02068358 A1 WO02068358 A1 WO 02068358A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- calcium phosphate
- weight
- phosphate
- sodium pyrophosphate
- cement
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/02—Surgical adhesives or cements; Adhesives for colostomy devices containing inorganic materials
-
- 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
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
- A61K6/864—Phosphate cements
-
- 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
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
- A61K6/876—Calcium oxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/12—Phosphorus-containing materials, e.g. apatite
-
- 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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/02—Phosphate cements
- C04B12/025—Phosphates of ammonium or of the alkali or alkaline earth metals
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00836—Uses not provided for elsewhere in C04B2111/00 for medical or dental applications
Definitions
- the present invention relates to a calcium phosphate cement that can be used for augmentation of a living body in a medical field including, for example, oral surgery and can form a high-strength hardened body.
- living bone augmentation treatment cement includes
- cements having these properties are required, and various cements for bone augmentation and treatment have been proposed as cements having these properties.
- the hardened body is a foreign substance to the living body, it is desirable that the strength required for the bone for treatment reinforcement is obtained with the use amount of the hardened body as small as possible. The body is not strong enough.
- the present inventors have found that the strength increase is carried out vector research to develop a calcium phosphate cement capable of hardening material, sodium pyrophosphate 0. 0 3-2 weight 0 /. And 3 to 35% by weight of dibasic calcium phosphate, and the balance is at least one selected from the hydration reaction product of dibasic calcium phosphate and ⁇ - type tribasic calcium phosphate, quaternary calcium phosphate, and tribasic calcium phosphate. Mixed unavoidable impurities I found an adult.
- this mixed composition When this mixed composition is used as a calcium phosphate cement, the fluidity of a paste formed by adding a curable aqueous solution to the mixture is further improved by the action of the sodium phosphate, and the entrapment of air bubbles is significantly reduced. As a result, a research result was obtained that a dense cured body can be formed, and the strength of the formed cured body can be significantly improved.
- the calcium phosphate cement according to the first aspect of the present invention has a weight ratio of sodium pyrrolinate of 0.03 to 0.5 / 0 . ; Dicalcium phosphate 3-1 0 weight 0/0; and the 4 phosphate 1 0-2 5 wt. /. And the balance is "type tribasic calcium phosphate and inevitable impurities.”
- the calcium phosphate cement according to the second aspect of the present invention has a weight ratio of sodium pyrrolate of 0.03 to 1.5 / 0 . And 3 to 25% by weight of dibasic calcium phosphate, with the balance being ⁇ -type tribasic calcium phosphate and inevitable impurities. More preferably the calcium phosphate cement according to the third aspect of the present invention, pyrrolidone phosphate Natoriumu 0 0 3-2 wt%;. It includes Oyopi dicalcium phosphate 5 to 3 5 weight 0/0, the balance, fourth Calcium phosphate and unavoidable impurities.
- the calcium phosphate cement according to the fourth aspect of the present invention comprises sodium pyrrolate in an amount of from 0.03 to 2.0% by weight; a hydration reaction product of dibasic calcium phosphate and ⁇ -type tertiary calcium phosphate 2-1. 0% by weight; 3 to 10% by weight of dibasic calcium phosphate, and 10 to 25% by weight of quaternary calcium phosphate, with the balance being ⁇ -type tribasic calcium phosphate and inevitable impurities.
- the basic composition of the calcium phosphate cement of the present invention comprises sodium pyrophosphate in an amount of 0.03 to 2% by weight; and dicalcium phosphate in an amount of 3 to 35% by weight. It is at least one selected from a reaction product, quaternary calcium phosphate, and tertiary calcium phosphate and inevitable impurities. The reason why the composition is limited as described above will be described.
- Sodium pyrophosphate is a paste formed by adding a hardening aqueous solution to cement This enhances the fluidity of the foam, suppresses the incorporation of air bubbles, and enables the formation of a dense cured product, thereby improving the strength of the cured product.
- sodium pyrophosphate is first kneaded with dibasic calcium phosphate, and the remaining other components, namely, dibasic calcium phosphate and ⁇ -type tribasic calcium phosphate are used. It is desirable to mix with at least one selected from the hydration reaction product of quaternary calcium phosphate and calcium tribasic calcium phosphate.
- Dibasic calcium phosphate has the effect of accelerating the setting of the paste into the cured product. If the compounding ratio is less than 3% by weight, the effect of accelerating the setting is reduced. Therefore, 3 to 35% by weight is preferable.
- curable aqueous solution for mixing and hardening the calcium phosphate cement of the present invention examples include, for example, disodium succinate, sodium chondroitin sulfate, sodium lactate, sodium phosphate, sodium chloride, sodium hydrogen sulfite, And 40 or more of one or more selected from sodium pyrosulfite and the like.
- An aqueous solution dissolved at a concentration of / 0 or less, or distilled water can be used.
- the calcium phosphate cement according to the first embodiment of the present invention sodium pyrrolidone phosphate 0 0 3-0 5% by weight;.. Dicalcium phosphate 3-1 0 weight 0/0; and the 4 phosphate 1 0-2 5% by weight, with the balance being ⁇ -type tribasic calcium phosphate and unavoidable impurities.
- the content of sodium pyrophosphate is preferably in the range of 0.3 to 0.5% by weight, more preferably 0.1 to 0.3% by weight. / 0 .
- Second phosphoric acid It is desirable proportion of Rushiumu is 3 to 1 0 weight 0/0, more preferably 4-8 wt%. The reason is the same as described above.
- the quaternary calcium phosphate has an effect of promoting the resorbable property of the hardened body to be regenerated into living bone.
- the content is preferably from 10 to 25% by weight, and more preferably from 12 to 20% by weight.
- the calcium phosphate cement according to the second aspect of the present invention has a weight ratio of sodium pyrrolinate of 0.03 to 1.5 / 0 . And 3 to 25% by weight of dibasic calcium phosphate, the balance being ⁇ -type tribasic calcium phosphate and unavoidable impurities.
- the ratio of sodium pyrophosphate is 0.03 weight 0 /. If the amount is less than 1.5%, the effect is reduced. If the amount is more than 1.5% by weight, the time required for curing the cured body is prolonged. Therefore, the ratio is preferably from 0.3 to 1.5% by weight. Preferably it is 0.1 to 1.0% by weight.
- the proportion of dibasic calcium phosphate is less than 3% by weight, the desired setting accelerating action cannot be ensured. On the other hand, if the proportion exceeds 25% by weight, the hardening is remarkably accelerated and the workability is increased. Therefore, the proportion is desirably 3 to 25% by weight, and more preferably 6 to 20% by weight.
- the calcium phosphate cement according to the third aspect of the present invention has a sodium pyrophosphate content of 0.03 to 2% by weight. /. ; Wherein and a second calcium phosphate 5 to 3 5 weight 0/0, the balance is the fourth calcium phosphate and unavoidable impurities.
- the proportion of sodium pyrophosphate when the proportion of sodium pyrophosphate is less than 0.03% by weight, the above effect is reduced. On the other hand, when the proportion exceeds 2% by weight, the curing time of the cured product is prolonged. It is preferably from 0.3 to 2% by weight, more preferably from 0.3 to: 0.5% by weight.
- the proportion is desirably 5 to 35% by weight. Preferably it is 10 to 30% by weight.
- the calcium phosphate cement according to the fourth aspect of the present invention comprises sodium pyrrolate in an amount of from 0.03 to 2.0% by weight; a hydration reaction product of dibasic calcium phosphate and ⁇ -type tertiary calcium phosphate 2-1. 0% by weight; 3 to 10% by weight of dibasic calcium phosphate and 10 to 25% by weight of quaternary calcium phosphate, with the balance being tricalcium phosphate and inevitable impurities.
- the proportion of sodium pyrophosphate when the proportion of sodium pyrophosphate is less than 0.03% by weight, the above effect is reduced. On the other hand, when the proportion exceeds 2% by weight, the curing time of the cured product is prolonged. It is preferably from 0.3 to 2% by weight, more preferably from 0.1 to 1.0% by weight.
- the proportion of dibasic calcium phosphate is less than 3% by weight, the desired setting accelerating effect cannot be secured, while if the proportion exceeds 10% by weight, the hardening time becomes too short and the workability deteriorates. Therefore, the proportion is desirably 3 to 10% by weight, and more preferably 4 to 7% by weight.
- the hydration reaction product has a mixing ratio of dibasic calcium phosphate and ⁇ - type tertiary phosphoric acid / resin in a mass ratio of 1: 5 to 1:30, more preferably 1:10 to 1:20. And water is added to the resulting mixture in a weight ratio of 1: 0.2 to 1: 0.5, more preferably 1: 0.3 to 1: 0.4, and a hydration reaction is performed. And then pulverized to a particle size of about 1 to 300 jam.
- ⁇ -type tribasic calcium phosphate and quaternary calcium phosphate were adjusted as follows. Commercially available sodium pyrophosphate and dibasic calcium phosphate were used.
- a mixed product having a content of quaternary calcium phosphate of 90.5% by weight and the remainder substantially consisting of hydroxyapatite as an inevitable impurity was produced.
- the mixed product was used as the quaternary calcium phosphate.
- the ⁇ -type tribasic calcium phosphate powder obtained in the same manner as in the first example was used, and commercially available powders of sodium pyrophosphate and dibasic calcium phosphate were used.
- sodium pyrophosphate powder and dicalcium phosphate powder were blended in advance in the proportions shown in Table 2 and kneaded with a kneader for 30 minutes.
- a mold tribasic calcium phosphate powder was added to the kneaded powder at the ratio shown in Table 2 and mixed to form a mixed composition, thereby producing Experimental Examples # 1 to # 15.
- Nos. 1 to 8 containing no magnesium phosphate were manufactured.
- mm X height A column-shaped solidified body having a dimension of 12 mm is formed, and the solidified body is immersed in the same simulated body fluid as in the first embodiment for 5 days to be cured. The compressive strength of the cured product was measured. Table 2 also shows the measurement results.
- the fourth calcium phosphate powder produced by the same method as in the first example was used.
- sodium pyrophosphate and dicalcium phosphate commercially available powders were used.
- the sodium pyrophosphate powder and the dibasic calcium phosphate powder are kneaded in advance with a kneader at a ratio shown in Table 3 for 30 minutes.
- Experimental examples CI to C14 were manufactured by blending the rubber powder in the ratios shown in Table 3 and mixing to form a mixed composition.
- Comparative Examples C1 to C7 were manufactured without sodium pyrophosphate.
- ⁇ -type calcium triphosphate and quaternary calcium phosphate powder produced by the same method as in the first example were used. Commercial powders were used for sodium pyrophosphate and dibasic calcium phosphate, respectively.
- the hydration reaction product of dibasic calcium phosphate and ⁇ -type tribasic calcium phosphate was prepared as follows.
- dibasic calcium phosphate and ⁇ -type tribasic calcium phosphate prepared by the above method were mixed at a weight ratio of 1:15 and 1:30, respectively, and the mixture and water were mixed at a weight ratio of 3: 1. After the addition and curing, the cured product was ground to less than 300 ⁇ to prepare two kinds of hydration products.
- Table 4 shows the mixture obtained at a weight ratio of 1:15 as C, and the mixture obtained at a weight ratio of 1:30 as F.
- the sodium pyrophosphate powder and the dicalcium phosphate powder were mixed in advance in the proportions shown in Table 4 and then kneaded with a kneader for 30 minutes. The remaining raw materials were mixed with the kneaded powder in the proportions shown in Table 4.
- Experimental Examples D1 to D15 were produced by mixing to obtain a mixed yarn.
- Comparative Examples D1 to D5 containing no sodium pyrophosphate were produced.
- the calcium phosphate cement of the present invention makes it possible to mold a hardened body having high strength, greatly contributes to the improvement of the strength of bone for treatment reinforcement, and can reduce the amount of hardened body used, which is industrially useful. It has various characteristics.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01941024A EP1364925A4 (en) | 2001-02-28 | 2001-06-13 | CALCIUM PHOSPHATE CEMENT |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-54277 | 2001-02-28 | ||
JP2001054279A JP2002253664A (ja) | 2001-02-28 | 2001-02-28 | 高強度硬化体の形成が可能な生体骨補強治療用リン酸カルシウムセメント |
JP2001-54278 | 2001-02-28 | ||
JP2001054278A JP2002255610A (ja) | 2001-02-28 | 2001-02-28 | 高強度硬化体の形成が可能な生体骨補強治療用リン酸カルシウムセメント |
JP2001-54279 | 2001-02-28 | ||
JP2001054277A JP2002255609A (ja) | 2001-02-28 | 2001-02-28 | 高強度硬化体の形成が可能な生体骨補強治療用リン酸カルシウムセメント |
Publications (1)
Publication Number | Publication Date |
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WO2002068358A1 true WO2002068358A1 (fr) | 2002-09-06 |
Family
ID=27346124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/004998 WO2002068358A1 (fr) | 2001-02-28 | 2001-06-13 | Ciment a base de phosphate de calcium |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1364925A4 (ja) |
TW (1) | TW539656B (ja) |
WO (1) | WO2002068358A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4294037B2 (ja) * | 2006-06-13 | 2009-07-08 | 大成歯科工業株式会社 | リン酸塩系歯科用埋没材 |
EP2638892A1 (en) | 2012-03-13 | 2013-09-18 | S & C Polymer Silicon- und Composite-Spezialitäten GmbH | Bioactive hydraulic organic matrix materials |
CN104140216B (zh) * | 2014-06-24 | 2017-02-01 | 济南大学 | 高铁磷铝酸盐水泥熟料 |
CN110680953B (zh) * | 2018-07-06 | 2021-07-27 | 中国科学院理化技术研究所 | 一种基于3d打印技术制备不同磷酸镁物相多孔骨修复支架的方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6437445A (en) * | 1987-07-31 | 1989-02-08 | Nat Inst Res Inorganic Mat | Calcium phosphate hydraulic cement composition |
JPH0248479A (ja) * | 1988-08-10 | 1990-02-19 | Tokuyama Soda Co Ltd | 硬化性組成物の硬化方法 |
JPH04314449A (ja) * | 1991-04-15 | 1992-11-05 | Mitsubishi Materials Corp | 生体用リン酸カルシウムセメント |
JPH06172007A (ja) * | 1992-12-08 | 1994-06-21 | Mitsubishi Materials Corp | 高強度リン酸カルシウムセメント |
JPH06219917A (ja) * | 1993-01-27 | 1994-08-09 | Lion Corp | 歯科用硬化性組成物 |
JPH0733489A (ja) * | 1993-07-19 | 1995-02-03 | Mitsubishi Materials Corp | 超速硬性リン酸カルシウムセメントの製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5180426A (en) * | 1987-12-28 | 1993-01-19 | Asahi Kogaku Kogyo K.K. | Composition for forming calcium phosphate type setting material and process for producing setting material |
EP0520690B1 (en) * | 1991-06-26 | 1995-11-02 | Nitta Gelatin Inc. | Calcium phosphate type hardening material for repairing living hard tissue |
JPH09103478A (ja) * | 1995-10-11 | 1997-04-22 | Nitta Gelatin Inc | 医科用または歯科用硬化性材料 |
-
2001
- 2001-06-13 WO PCT/JP2001/004998 patent/WO2002068358A1/ja active Application Filing
- 2001-06-13 EP EP01941024A patent/EP1364925A4/en not_active Withdrawn
- 2001-06-13 TW TW090114346A patent/TW539656B/zh not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6437445A (en) * | 1987-07-31 | 1989-02-08 | Nat Inst Res Inorganic Mat | Calcium phosphate hydraulic cement composition |
JPH0248479A (ja) * | 1988-08-10 | 1990-02-19 | Tokuyama Soda Co Ltd | 硬化性組成物の硬化方法 |
JPH04314449A (ja) * | 1991-04-15 | 1992-11-05 | Mitsubishi Materials Corp | 生体用リン酸カルシウムセメント |
JPH06172007A (ja) * | 1992-12-08 | 1994-06-21 | Mitsubishi Materials Corp | 高強度リン酸カルシウムセメント |
JPH06219917A (ja) * | 1993-01-27 | 1994-08-09 | Lion Corp | 歯科用硬化性組成物 |
JPH0733489A (ja) * | 1993-07-19 | 1995-02-03 | Mitsubishi Materials Corp | 超速硬性リン酸カルシウムセメントの製造方法 |
Non-Patent Citations (1)
Title |
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See also references of EP1364925A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1364925A4 (en) | 2005-04-20 |
EP1364925A1 (en) | 2003-11-26 |
TW539656B (en) | 2003-07-01 |
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