WO2010010901A1 - 歯科用接着性組成物 - Google Patents
歯科用接着性組成物 Download PDFInfo
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- WO2010010901A1 WO2010010901A1 PCT/JP2009/063121 JP2009063121W WO2010010901A1 WO 2010010901 A1 WO2010010901 A1 WO 2010010901A1 JP 2009063121 W JP2009063121 W JP 2009063121W WO 2010010901 A1 WO2010010901 A1 WO 2010010901A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/30—Compositions for temporarily or permanently fixing teeth or palates, e.g. primers for dental adhesives
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- the present invention relates to a dental adhesive composition useful as a primer or adhesive for adhering a dental restoration made of metal, organic polymer, ceramics, or a composite material thereof, and a tooth substance in the field of dentistry. Related to things.
- a tooth cavity damaged by caries or the like if it is a relatively small cavity in the first mid-stage, it is usually repaired directly by a composite resin in terms of aesthetics, simplicity of operation and quickness.
- a relatively large cavity is usually repaired using a prosthesis made of metal, ceramics or dental resin.
- an adhesive composed of a polymerizable monomer composition is usually used to adhere it to the tooth.
- the polymerizable monomer used for such an adhesive is usually composed mainly of a methacrylate monomer, and the adhesive force to the tooth is not sufficient.
- adhesion of a composite resin it often does not reach an adhesive strength enough to overcome the internal stress generated when the composite resin is cured, that is, the tensile stress generated at the interface between the tooth and the composite resin.
- the adhesive strength that can withstand the force applied by occlusion is often not reached.
- the following pretreatment is applied to the tooth surface at the time of use. That is, 1) Applying a pretreatment material for etching hard teeth (mainly enamel mainly composed of hydroxyapatite), 2) In order to promote the penetration of the adhesive into the tooth, a pretreatment material called a primer is applied.
- a dental monomer containing a polymerizable monomer having adhesiveness to tooth has been developed.
- a polymerizable monomer having an acidic group such as a phosphate group or a carboxylic acid group having a high affinity for a tooth (hydroxyapatite or collagen)
- An acidic group-containing polymerizable monomer is added to express higher adhesive strength (Patent Document 1 and Patent Document 2).
- Patent Document 3 Furthermore, by adding a polyvalent metal ion-eluting filler to an adhesive or primer containing an acidic group-containing polymerizable monomer and water, we are trying to further increase its own polymerization curability. (Patent Documents 4 to 7).
- the polyvalent metal ion-eluting filler means a filler such as fluoroaluminosilicate glass that elutes metal ions under an acidic solution, and the polyvalent metal ions eluted from this include alkaline earth metals, Metal ions such as aluminum are mentioned.
- polyvalent metal ion-eluting fillers there are some which can be used fillers in which a part of the aluminum is replaced with titanium, zirconium, etc., but these group 4 element ions are actually used. There are no examples, and the compounding amount and the like are not specifically shown.
- the reason why the adhesive strength is improved in the adhesive containing such a polyvalent metal ion-eluting filler is that, together with the polymerization of the polymerizable monomer containing the acidic group-containing polymerizable monomer, when the adhesive is cured, The polyvalent metal ions eluted from the valent metal ion-eluting filler form a salt with the acidic group of the acidic group-containing polymerizable monomer, thereby causing ionic cross-linking and increasing the strength of the cured product. It is believed that.
- Adhesive compositions containing an acidic group-containing polymerizable monomer provide higher adhesive strength than those containing no such monomer, and the tooth group is further affected by the action of the acidic group. It is possible to simplify the bonding operation because it has a decalcifying function, but as mentioned above, extremely strong bonding strength is required between the tooth and the dental restoration, so that the bonding strength is still sufficient. Instead, it was necessary to be able to exhibit even higher adhesiveness stably. Further, in the invention for improving the adhesive strength by using the calcium salt of the phosphoric acid monoester monomer described above, the fourth group element such as titanium and zirconium is also exemplified as the element forming the metal salt. Even when a metal salt composed of a monoester monomer and a Group 4 element was used, its adhesive strength was still insufficient (Patent Document 3).
- an adhesive containing a polyvalent metal ion-eluting filler was not in a practically sufficient range, although the adhesiveness was further improved.
- an adhesive containing a polyvalent metal ion-eluting filler if sufficient ion crosslinking is developed to obtain high adhesive strength, the types of metal ions eluted from the polyvalent metal ion-eluting filler used The amount is also extremely important. For example, if these eluted ions are mainly divalent metal ions such as monovalent metal ions and calcium ions, a sufficient adhesive improvement effect cannot be obtained.
- the present inventors mixed specific polyvalent metal ions and phosphoric acid polymerizable monomers in a single solution at a specific mixing ratio to develop ionic crosslinks, thereby developing dental materials.
- the invention which improved the adhesiveness with respect to the water
- This type of adhesive has a one-part storage form, and during the storage, an ion cross-link between polyvalent metal ions and phosphate polymerizable monomer is formed to increase the cross-link density and greatly increase the bond strength.
- the adhesive strength is still not sufficiently satisfactory for practical use and needs to be further improved. Therefore, the development of a dental adhesive composition that further enhances the bond strength and bond durability, strengthens the bond between the tooth and the composite resin and prosthesis, and has excellent bond durability over a long period of time is a major issue. there were.
- a polymerizable monomer having a hydrogen phosphate diester group hereinafter referred to as a phosphoric acid diester polymerizable monomer
- a dental adhesive composition comprising at least part of a monomer component
- the above-mentioned problems can be solved by coexisting a specific amount of a Group 4 element ion in the liquid, thereby completing the present invention. It came to.
- a polymerizable monomer containing 10% by mass or more of a polymerizable monomer having a hydrogen phosphate diester group (B) a dental adhesive composition containing a Group 4 element ion, An amount in which the content of the Group 4 element ion is 0.1 to 1.0 in terms of a molar ratio with respect to the hydrogen phosphate diester group of the polymerizable monomer having (A-1) hydrogen phosphate diester group A dental adhesive composition is provided.
- Group 4 element ions are titanium ions (2) Furthermore, (C) contain a polymerization initiator (3) The composition exhibits acidity (4) Furthermore, Group 4 elements It is preferable to contain (D) fluoride ions having a molar ratio of 0.4 to 4.0 with respect to ions (5) and (E) water.
- the (A-1) hydrogen phosphate diester group of the polymerizable monomer having a hydrogen phosphate diester group has a molar ratio of Group 4 element ions of 0.1 to 1.0.
- A-1) a polymerizable monomer having a hydrogen phosphate diester group (B alk ), a Group 4 element in a method for producing a dental adhesive composition by mixing a quantity of a Group 4 element metal alkoxide
- a method for producing the dental adhesive composition is provided, which is premixed with a metal alkoxide and then mixed with (E) water.
- the dental adhesive composition of the present invention further improves the adhesion strength to the tooth compared with a conventional adhesive containing an acidic group-containing polymerizable monomer and a polyvalent metal ion-eluting filler. be able to.
- a conventional adhesive containing an acidic group-containing polymerizable monomer and a polyvalent metal ion-eluting filler.
- the acidic group of the phosphodiester polymerizable monomer is ionically bonded to the group 4 element ion, and the ionic cross-linking of the polymer formed by this polymerization is a conventional acidic group-containing polymerization. It is thought that it is caused by the fact that it is more developed and formed at a higher density than the ionic crosslinking formed by the acidic group of the functional monomer and the polyvalent metal ion eluted from the polyvalent metal ion-eluting filler. It is done.
- the dental adhesive composition of the present invention utilizes this high adhesive strength, and is capable of bonding the tooth and the composite resin or the dental restoration of the prosthesis stably for a long period of time with high water resistance. It is useful as an adhesive having excellent properties, and is also useful as a primer applied to the tooth surface before the use of the adhesive during such adhesion.
- the dental adhesive composition of the present invention comprises (A) a polymerizable monomer and (B) a Group 4 element ion as basic components.
- the polymerizable monomer is a polymer such as acryloyl group, methacryloyl group, acrylamide group, methacrylamide group, vinyl group, allyl group, ethynyl group, styryl group in the molecule. It is a compound which has an ionic unsaturated group.
- a compound having an acryloyl group, a methacryloyl group, an acrylamide group, and a methacrylamide group is preferable from the viewpoint of curing speed, and an acryloyl group and a methacryloyl group are most preferable.
- (A-1) Phosphoric acid diester polymerizable monomer in the present invention, (A-1) phosphoric acid diester polymerizable monomer is 10% by mass or more of the total component of (A) polymerizable monomer. This is very important. This phosphodiester polymerizable monomer not only has a high decalcification effect on the tooth, but also has a high binding power to the tooth, and in the present invention, it has an ability to form an ionic bond with the coexisting Group 4 element ions. In particular, a high adhesive strength can be obtained.
- the same polymerizable monomer having a phosphoric acid group such as a phosphinic acid group, a phosphonic acid group, a hydrogen phosphonate monoester group, and a dihydrogen phosphate monoester group even if the acid group is derived from phosphoric acid. Even if used, the adhesive strength as high as the present invention cannot be obtained.
- Examples of compounds that can be suitably used as the phosphoric acid diester polymerizable monomer include polymerizable monomers represented by the following general formula. However, in the above compounds, R 1 represents a hydrogen atom or a methyl group. These compounds can be used alone or in admixture of two or more. Of these, a compound represented by the formula (1) having two polymerizable functional groups is preferable, and bis [2- (meth) acryloyloxyethyl] hydrogen phosphate is most preferable.
- the content of the (A-1) phosphoric diester polymerizable monomer needs to be 10% by mass or more of the polymerizable monomer, but the polymerizable monomer is a phosphoric diester group polymerizable single monomer. It may be only the body.
- the dental adhesive composition of the present invention comprises ((A-1) other phosphoric acid other than (A-1) phosphoric acid diester polymerizable monomer.
- a polymerizable monomer having an acidic group derived from hereinafter, referred to as a phosphoric acid group-containing polymerizable monomer may be included.
- Examples of sulfonylmethylphosphonic acid having a phosphonic acid hydrogen monoester group include 3-methacryloxyethylphosphonic acid mono (methacryloxyethyl) ester, 3-methacryloxyethylphosphonic acid monophenylester and the like.
- (A-3) Non-acidic group-containing polymerizable monomer Furthermore, from the viewpoint of adjusting the permeability of the adhesive to the tooth or improving the strength of the cured product, (A-3) having an acidic group It is suitable to use together with a polymerizable monomer that does not (hereinafter referred to as a non-acidic group-containing polymerizable monomer). Even when such a non-acidic group-containing polymerizable monomer is used in combination, from the viewpoint of improving the adhesive strength to both enamel and dentin, (A-1) phosphoric acid in all polymerizable monomers The diester polymerizable monomer needs to be contained in an amount of 10% by mass or more, and more preferably in the range of 15 to 60% by mass. If the amount of the phosphoric acid diester polymerizable monomer is small, the adhesive strength to enamel tends to decrease, and conversely if too large, the adhesive strength to dentin tends to decrease.
- a known compound can be used without any limitation. Specifically, methyl (meth) acrylate (meaning methyl acrylate or methyl methacrylate; the same shall apply hereinafter), ethyl (meth) acrylate, glycidyl (meth) acrylate, 2-cyanomethyl (meth) Acrylate, benzyl (meth) acrylate, polyethylene glycol mono (meth) acrylate, allyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, glycidyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, glyceryl mono (meta ) Acrylate, mono (meth) acrylate monomers such as 2- (meth) acryloxyethyl acetylacetate; ethylene glycol (meth) acrylate (meaning methyl acrylate or methyl methacrylate; the same shall apply hereinafter), ethyl (meth) acrylate
- a polymerizable monomer other than the (meth) acrylate monomer can be used as the (A-3) non-acidic group-containing polymerizable monomer.
- non-acidic group-containing polymerizable monomers include fumaric acid ester compounds such as dimethyl fumarate, diethyl fumarate, diphenyl fumarate; styrene, divinylbenzene, ⁇ -methylstyrene, ⁇ -methylstyrene dimer, etc. Examples thereof include styrene, ⁇ -methylstyrene derivatives; allyl compounds such as diallyl phthalate, diallyl terephthalate, diallyl carbonate, and allyl diglycol carbonate. These non-acidic group-containing polymerizable monomers can be used alone or in admixture of two or more.
- 2-hydroxyethyl (meth) acrylate 3-hydroxy is used from the viewpoint of preventing separation of water and maintaining stable adhesive strength as a uniform composition. It is preferable to use a water-soluble non-acidic group-containing polymerizable monomer such as hydroxypropyl (meth) acrylate in combination.
- the dental adhesive composition of the present invention must contain a specific amount of (B) Group 4 element ion together with the polymerizable monomer component.
- Group 4 element ions include titanium ions, zirconium ions, and hafnium ions.
- a titanium ion is mentioned as a group 4 element ion with a higher effect.
- These Group 4 element ions can be used in combination of two or more.
- the content of Group 4 element ions present in the dental adhesive composition is 0.1 to 1.0 in molar ratio to the hydrogen phosphate diester group in the phosphate diester polymerizable monomer.
- the amount is more preferably 0.2 to 0.6.
- the amount of Group 4 element ion present in the composition is less than 0.1 in terms of molar ratio with respect to the hydrogen phosphate diester group, ions of Group 4 element ion and phosphodiester polymerizable monomer are present. Since the crosslink density due to bonding decreases, the adhesiveness is not sufficiently developed.
- the reason why a particularly high adhesive strength can be obtained by including a specific amount of Group 4 element ions is higher than that in the case where other polyvalent metal ions are present together, but it is not as follows. Is estimated. That is, when a group 4 element ion is present in a system containing a phosphodiester polymerizable monomer, the acidic group and the group 4 element ion in the polymerizable monomer form a strong ionic bond. .
- the adhesive force due to the ionic crosslinking of the polymer chain generated by the polymerization of this ionic bond is synergistically combined to bond. It is considered that the strength is further improved.
- the number of polymerizable monomers having acidic groups capable of forming ionic bonds is up to three molecules.
- Group IV element ions can form ionic bonds with a polymerizable monomer having an acidic group of at least 4 molecules. For this reason, it is considered that the use of Group 4 element ions can further increase the cross-linking density as compared with the case of using other polyvalent metal ions, and the adhesive strength and the adhesion durability can be improved.
- the polymerizable monomer having an acidic group is a phosphodiester polymerizable monomer as described above, and the hydrogen phosphate diester group in the monomer has high acidity, It is presumed that the effect of increasing the cross-linking density is further improved because it is easier to ion bond with the Group 4 element ions than the acidic group, and thus it is possible to realize high adhesive strength.
- the type and content of group 4 element ions in the dental adhesive composition are measured using an inductively coupled plasma (ICP) emission spectrometer or fluorescent X-ray (XRF) analyzer after removing solid components. Can be obtained.
- ICP emission spectrometer the adhesive composition is diluted with a water-soluble organic solvent to a concentration of 1% by mass, and the resulting diluted solution is filtered with a syringe filter or the like to obtain a solid component. Remove.
- the ionic species and concentration of the obtained filtrate are measured with an ICP emission analyzer, and the Group IV element ionic species and amount in the adhesive composition are calculated.
- the adhesive composition is filtered with a syringe filter or the like to remove the solid component.
- the ionic species and concentration of the obtained filtrate are measured with an XRF analyzer, and the Group 4 element ionic species and amount in the adhesive composition are calculated.
- metal ion species other than the Group 4 element ions and their contents can also be measured by the same method.
- the type and content of the phosphodiester polymerizable monomer in the dental adhesive composition can be measured from the composition by preparative high performance liquid chromatography ⁇ following.
- (A-1) a phosphoric acid diester polymerizable monomer and (A-2) a polymerizable monomer belonging to a phosphoric acid group-containing polymerizable monomer are collectively referred to as ⁇
- the molecular weight of the acid polymerizable monomer is measured by mass spectrometry, and the structure is determined by performing nuclear magnetic resonance spectroscopy (NMR) measurement.
- NMR nuclear magnetic resonance spectroscopy
- the chemical shift value can be determined by measuring 31 P-NMR of a known compound under the same conditions (dilution solvent, concentration, temperature) and using it as a standard.
- a known compound having a hydrogen phosphate diester group hydrogen phosphate dimethyl ester is used.
- the content of the phosphoric acid diester polymerizable monomer was determined by preparing a calibration curve with the above standard substance using the polymerizable monomer isolated by preparative high performance liquid chromatography. It can be determined by adding an internal standard substance to a part of the filtrate and measuring by high performance liquid chromatography.
- the method of incorporating a Group 4 element ion in the system is not particularly limited, and when preparing the dental adhesive composition, the phosphoric acid diester polymerizable monomer is used. What is necessary is just to mix
- Examples of the Group 4 element ion source compound include a Group 4 element simple substance, a polyvalent metal ion-eluting filler containing ions that elute Group 4 element ions, or a Group 4 element compound.
- Examples of Group 4 element compounds include Group 4 element metal salts, Group 4 element metal halides, and (B alk ) Group 4 element metal alkoxides.
- Metal salts include 1,3-diketone enol, citrate, tartrate, fluoride, malonate, glycolate, lactate, phthalate, isophthalate, terephthalate, acetate, Examples thereof include methoxyacetate, and examples of the metal halide include titanium fluoride, zirconium fluoride, and hafnium fluoride.
- Examples of the (B alk ) group 4 element metal alkoxide include titanium methoxide, titanium ethoxide, titanium propoxide, titanium isopropoxide, zirconium methoxide, zirconium ethoxide, zirconium propoxide, zirconium isopropoxide, and the like. Titanium methoxide, titanium ethoxide, titanium propoxide, titanium isopropoxide and the like are particularly preferable.
- lower group 4 element metal alkoxides having 4 or less carbon atoms, elution of metal ions is fast, and since the by-product is alcohol, the adhesive strength is not affected, and removal of the by-product is easy. Further, it is more preferable from the viewpoint of easy handling.
- some of these Group 4 element compounds have extremely low solubility, it is preferable to use them after confirming in advance by a preliminary experiment or the like.
- a group 4 element ion source compound a simple substance of titanium or zirconium and an oxide thereof are often insoluble in a polymerizable monomer or an organic solvent, and in general, even in the presence of water, Since it hardly elutes the corresponding metal ions, it is usually difficult to use as a Group 4 element ion source.
- a polyvalent metal ion-eluting filler comprising a group 4 element ion is also unsuitable as a group 4 element ion source because it hardly elutes a group 4 element ion even in the presence of water. .
- salts of strong acids tend to be difficult to exchange salts with weak acids.
- an acid having a pKa value smaller than the pKa value based on the first dissociation of phosphoric acid that is, a metal salt of a stronger acid than phosphoric acid, has an ionic bond between the free group 4 element ion and the hydrogen phosphate diester group. Since it does not occur sufficiently, it is not preferable as a Group 4 element ion source.
- the dental adhesive composition of the present invention is preferably produced using (B alk ) group 4 element metal alkoxide as the group 4 element ion source. That is, a Group 4 element ion is present with respect to a polymerizable monomer comprising at least 10% by mass of a phosphodiester polymerizable monomer and a hydrogen phosphate diester group of the phosphodiester polymerizable monomer. An amount of a Group 4 element metal alkoxide in a molar ratio of 0.1 to 1.0 is mixed and prepared.
- the water is mixed with water.
- a polymerizable monomer other than the phosphoric acid diester polymerizable monomer is blended, the other polymerizable monomer is first mixed with the phosphoric acid diester polymerizable monomer, and then the fourth monomer. Mix with group element metal alkoxide and then with water. Alternatively, the phosphoric acid diester polymerizable monomer and the Group 4 element metal alkoxide are mixed first, and then finally mixed into the mixture mixed with water.
- the dental adhesive composition of the present invention is a primer or a one-step type dental adhesive that does not use a primer, from the viewpoint of obtaining a higher adhesive strength by further deashing (E ) It is preferable to add water. As described above, when water is blended, it is necessary to first mix the phosphoric diester polymerizable monomer and the Group 4 element compound. The amount of water is preferably 3 to 150 parts by mass, more preferably 5 to 100 parts by mass with respect to 100 parts by mass of the polymerizable monomer component in order to sufficiently perform deashing with an acid. .
- the dental adhesive composition of the present invention may contain (M) other metal ions in addition to (B) Group 4 element ions.
- other metal ions include monovalent and divalent metal ions such as alkali metal ions and alkaline earth metal ions, and further include aluminum (III), iron (III), ruthenium (III), and cobalt. It may be a trivalent metal ion such as (III) or lanthanum (III).
- the total ion valence of the total amount of these other metal ions is 0.5 or less with respect to the total ion valence of all metal ions contained.
- the ratio is preferably 0.3 or less.
- the total ionic valence is a numerical value obtained by adding up the values obtained by multiplying the number of moles of each ionic species by the valence.
- the dental adhesive composition of the present invention when the dissolved amount of other metal ions is increased, the hydrogen phosphate diester group of the phosphate diester polymerizable monomer is ion-bonded to the metal ions and neutralized.
- the ratio of “total valence of metal ions” / “total valence of hydrogen phosphate diester groups of the phosphate diester polymerizable monomer” is 1.0 or more, the adhesive composition has a ratio of 1.0 or more.
- the composition usually does not exhibit acidity. Even if the dental adhesive composition of the present invention does not exhibit acidity in this way, high adhesive strength can be obtained, but if it exhibits acidity, it imparts an etching function (decalcification function of tooth).
- the dissolved amount of metal ions is adjusted so that the composition becomes acidic, or the “total ion valence of metal ions” is used.
- the ratio of “number” / “total number of hydrogen phosphate diester groups of the phosphoric acid diester polymerizable monomer” is 1.0 or more, it is necessary to contain other acidic substances to maintain acidity. is there.
- the acidity of the dental adhesive composition of the present invention may be a pH value measured by the following method of less than 4.8. That is, the acidity is implemented by mixing the adhesive composition with ethanol at a concentration of 10% by mass and quickly measuring the pH of the mixed solution.
- the pH can be measured by a conventionally known method. At 25 ° C., a pH electrode calibrated with a neutral phosphate pH standard solution (pH 6.86) and a phthalate pH standard solution (pH 4.01).
- the method of measuring with a pH meter using is simple and preferred. Ethanol used for dilution has a purity of 99.5% or more, and there is no particular problem if the pH value of the ethanol alone is 4.8 to 5.0 when measured by the method shown below.
- the dental adhesive composition preferably has a pH measured by this method in the range of 0.5 to 4.0 due to the strength of the decalcification of the tooth, and is 1.0 to 3.0. A range is more preferable.
- pKa value As other acidic substances added separately, those having a pKa value exceeding 2.15 at 25 ° C. in water are used. In view of the strength of the decalcification function of the tooth, it is preferable to use a pKa value of 6.0 or less, more preferably 4.0 or less. Examples of those preferably used include citric acid, tartaric acid, hydrofluoric acid, malonic acid, glycolic acid, lactic acid, phthalic acid, isophthalic acid, terephthalic acid, methoxyacetic acid and the like.
- Examples of such other acidic substances include 2- (6-methacryloxyhexyl) malonic acid, 2- (10-methacrylic acid) instead of a part of the (A-3) non-acidic group-containing polymerizable monomer.
- Monomers can be used.
- the present invention has a pKa value equal to or lower than the pKa value (2.15) based on the first dissociation of phosphoric acid in 25 ° C. water as the acidic substance.
- Strong acids should not be used. This is because when such a conjugated base ion of a strong acid is contained in the dental adhesive composition, the adhesive strength is lowered. The reason is that the conjugated base ion of the strong acid undergoes a competitive ion reaction with the acidic group of the phosphodiester polymerizable monomer, so that the conjugated base ion of such a strong acid is acidic in the phosphodiester polymerizable monomer.
- the conjugate base ion of such a strong acid is not substantially contained, and it is allowed to be contained to some extent so as not to affect the effect. 5 mol% or less, more preferably 3 mol% or less is desirable.
- the ratio of “total valence of acids other than phosphodiester polymerizable monomer” / “total valence of group 4 element ions” is less than 1.0. It must be made to become. That is, when this ratio is 1.0 or more, the adhesive strength is reduced. This is because the phosphoric acid diester polymerizable monomer and other acidic substance competitively form an ionic bond with a group 4 element ion, and when the ratio becomes 1.0 or more, the phosphoric acid diester polymerizable property This is because the formation of ionic bonds between the monomer and the Group 4 element ions is greatly suppressed. More preferably, the ratio is less than 0.5.
- the conjugated base ion of an acid other than the phosphodiester polymerizable monomer is contained in the dental adhesive composition of the present invention can be confirmed by measurement using ion chromatography. Specifically, the adhesive composition is extracted with water, the obtained aqueous phase is filtered, and the filtrate is measured by ion chromatography.
- (D) Fluoride Ion When the dental adhesive composition of the present invention contains water, if it is produced by the specific method, it gives high adhesive strength. There is a risk that the oxide solid of the Group 4 element ions may be deposited and the amount of the Group 4 element ions in the composition may be decreased, resulting in a decrease in adhesion strength or clogging of the container nozzle. Even in a dental adhesive composition that does not contain water, by repeatedly opening and closing the container, moisture in the air may be taken in and solids may gradually precipitate. In such a case, when (D) fluoride ion (F ⁇ ) is contained in the composition, precipitation of oxide solid by water can be prevented, and the storage stability in the composition is improved.
- F ⁇ fluoride ion
- the fluoride ions shown below can be blended to release the fluoride ions into the composition.
- the fluoride serving as the fluoride ion source is not limited as long as it can release fluoride ions.
- hydrofluoric acid, metal fluoride, ammonium fluorides, fluoroaluminosilicate glass, and the like can be used, and metal fluoride is particularly preferable.
- preferable metal fluorides include alkali metal fluorides such as sodium fluoride, potassium fluoride, and lithium fluoride; alkaline earth metal fluorides such as calcium fluoride and magnesium fluoride; aluminum fluoride, yttrium fluoride, Examples thereof include earth metal fluorides such as lanthanum fluoride and ytterbium fluoride; fluorides of Group 4 elements such as titanium fluoride and zirconium fluoride; zinc fluoride and the like. Of these, alkali metal fluorides and fluorides of Group 4 elements are preferred, and alkali metal fluorides are more preferred. Most preferred is sodium fluoride.
- the blending amount of fluoride ions may be appropriately adjusted and blended so that the precipitation of the Group 4 metal oxide can be prevented. However, when the amount is too small, the addition effect cannot be obtained.
- fluoride ions have a pKa value (2.15) or higher based on the first dissociation of phosphoric acid and are conjugate base ions of hydrofluoric acid. It is preferable that the molar ratio is less than 1.0 with respect to the “total ion valence of element ions”.
- the total ion valence of the other metal ions is all metals. It is suitable to add an amount that is a ratio of 0.5 or less, more preferably 0.3 or less with respect to the total ionic valence of ions.
- a preferred blending amount of fluoride ions is 0.4 to 4.0, more preferably 0.4 to 1.7 in terms of molar ratio with respect to Group 4 element ions.
- the phosphoric acid diester polymerizable monomer in the absence of water as in the method for adding the Group 4 element metal alkoxide described above can be mixed.
- the method is not particularly limited.
- an alkali metal fluoride it may be mixed with the phosphoric acid diester polymerizable monomer in the absence of water simultaneously with the Group 4 element metal alkoxide. After mixing the group 4 element metal alkoxide, an aqueous solution of alkali metal fluoride may be added.
- the fluoride ions in the dental adhesive composition are almost ionized and exist in the composition.
- the fluoride ions in the dental adhesive composition are almost ionized and exist in the composition.
- it is pure and diluted to a concentration of 1%, and the resulting diluted solution is filtered through a syringe filter to remove solid components.
- the fluoride ion concentration contained in the obtained filtrate is measured by anion chromatography, and the fluoride ion content in the dental adhesive composition is calculated.
- the dental adhesive composition of the present invention is used for adhesion of dentin in dental applications.
- dental restorations such as composite resins and prostheses, or orthodontic appliances such as brackets, etc.
- orthodontic appliances such as brackets, etc.
- a primer applied to treat tooth surfaces Usually, a primer applied to an adherend such as a tooth surface is not cured alone, but is simultaneously cured when an adhesive applied further on the applied primer is polymerized and cured.
- the composition of the present invention is particularly preferably used as an adhesive for composite resins, and is also preferably used as a one-step type adhesive having a primer function.
- the composition of the present invention when used as a primer for bonding a composite resin, it may be bonded and filled with a composite resin without using an adhesive. That is, the composite resin is directly filled into the tooth surface to which the primer is applied, and the filled composite resin is photocured to simultaneously cure the primer and adhere to the tooth.
- the composite resin When used in such a surgical procedure, it is not necessary to apply an adhesive and perform a polymerization and curing operation, which is preferable because clinical operations are simplified.
- the dental adhesive composition of the present invention may contain an effective amount of a polymerization initiator, and is particularly necessary when used as the dental adhesive.
- a polymerization initiator is preferably a photopolymerization initiator because it can be polymerized and cured at an arbitrary timing.
- Photopolymerization initiators include ⁇ -diketones such as camphorquinone, benzyl, ⁇ -naphthyl, acetonaphthene, naphthoquinone, 1,4-phenanthrenequinone, 3,4-phenanthrenequinone, 9,10-phenanthrenequinone; 2,4 Thioxanthones such as diethylthioxanthone; 2-benzyl-dimethylamino-1- (4-morpholinophenyl) -butanone-1, 2-benzyl-diethylamino-1- (4-morpholinophenyl) -butanone-1, 2 -Benzyl-dimethylamino-1- (4-morpholinophenyl) -propanone-1,2-benzyl-diethylamino-1- (4-morpholinophenyl) -propanone-1,2-benzyl-dimethylamino-1- ( 4-morpholinophenyl)
- borate compounds comprising sodium salt of butyltriphenylboric acid, tetraphenylboric acid, or tetrakis (p-tolyl) boric acid, or triethanolammonium salt; dibenzoyl peroxide, di (4-methylbenzoyl) Diacyl peroxides such as peroxides; alkyl hydroperoxides such as t-butyl hydroperoxide and 1,1,3,3-tetramethylbutyl hydroperoxide; chemical polymerization initiators such as barbituric acids are also required May be added.
- a transition metal compound such as a vanadium compound, a chromium compound, a manganese compound, an iron compound, or a cobalt compound may be used at the same time for the purpose of increasing the polymerization initiation activity of hydroperoxides and / or borates.
- vanadium compounds such as oxovanadium (IV) bis (maltolate) and divanadium pentoxide.
- polymerization accelerator examples include N, N-dimethylaniline, N, N-diethylaniline, N, N-di-n-butylaniline, N, N-dibenzylaniline.
- the blending amount of the polymerization initiator is 0.01 to 10 parts by mass, more preferably 0.1 to 5 parts by mass with respect to 100 parts by mass of all the polymerizable monomer components.
- an electron acceptor such as an iodonium salt, a trihalomethyl-substituted S-triazine, or a phenacylsulfonium salt compound may be added in addition to the above polymerization initiator and polymerization accelerator.
- the dental adhesive composition of the present invention may further contain a filler.
- a filler include inorganic fillers such as silica, zirconia, titania, silica / zirconia, and silica / titania. These inorganic fillers can be hydrophobized with a surface treatment agent typified by a silane coupling agent, thereby improving compatibility with the polymerizable monomer and improving mechanical strength and water resistance.
- the hydrophobization method may be carried out by a known method.
- silane coupling agent examples include methyltrimethoxysilane, methyltriethoxysilane, methyltrichlorosilane, dimethyldichlorosilane, trimethylchlorosilane, vinyltrimethoxysilane, vinyltriethoxysilane.
- the blending amount of the inorganic filler is usually in the range of 2 to 400 parts by weight, more preferably 5 to 100 parts by weight with respect to 100 parts by weight of the polymerizable monomer component.
- the dental adhesive composition of the present invention is used as a composite resin adhesive or primer, it is in the range of 2 to 60 parts by mass, more preferably 5 to 40 parts by mass.
- a volatile organic solvent may be further blended.
- the volatile organic solvent those which are volatile at room temperature and water-soluble can be suitably used.
- volatile as used herein means that the boiling point at 760 mmHg is 100 ° C. or lower and the vapor pressure at 20 ° C. is 1.0 KPa or higher.
- water-soluble means that the solubility in water at 20 ° C. is 20 g / 100 ml or more, and it is preferably compatible with water at 20 ° C. in an arbitrary ratio.
- volatile water-soluble organic solvents examples include methanol, ethanol, n-propanol, isopropyl alcohol, tertiary butanol, acetone, and methyl ethyl ketone. A plurality of these organic solvents can be used as necessary. In view of toxicity to the living body, ethanol, isopropyl alcohol and acetone are preferable.
- the amount of these volatile organic solvents is usually in the range of 2 to 400 parts by weight, more preferably 5 to 100 parts by weight, based on 100 parts by weight of all the polymerizable monomer components.
- These volatile organic solvents like water, are also air blown before the adhesive composition is cured when the dental adhesive composition of the present invention is applied to a tooth surface as a primer or an adhesive. It is removed by doing.
- an organic thickening material such as a polymer compound such as polyvinyl pyrrolidone, carboxymethyl cellulose, polyvinyl alcohol, or the like is used as long as it does not deteriorate the performance of the adhesive composition of the present invention, if necessary. It is possible to add.
- Various additives such as ultraviolet absorbers, dyes, antistatic agents, pigments, and fragrances can be selected and blended as necessary.
- This liquid was filtered with a syringe filter, the filtrate was measured by HPLC, and the concentration (mmol / g) of the phosphoric acid polymerizable monomer contained per 1 g of the polymerizable monomer was measured.
- (3) Measuring method of fluoride ion 2 g of dental adhesive composition 100 g of water and 10 g of diethyl ether were vigorously mixed, and after standing, the aqueous phase was filtered with a syringe filter, and the filtrate was measured by ion chromatography. The fluoride ion concentration (mmol / g) contained per 1 g of the polymerizable monomer was measured.
- a dental adhesive is applied to the simulated cavity, left for 20 seconds, dried by blowing compressed air for about 10 seconds, and then lighted for 10 seconds with a dental visible light irradiator (Tokuso Power Light, manufactured by Tokuyama Corporation). Irradiated. Further, a dental composite resin (Esterite ⁇ , manufactured by Tokuyama Dental Co., Ltd.) was filled thereon, and irradiated with a visible light irradiator for 30 seconds to produce an adhesion test piece I.
- Method II for preparing an adhesive test piece (applicable when a dental adhesive composition is used as a primer)
- a dental composite resin (Esterite ⁇ , manufactured by Tokuyama Dental Co., Ltd.) was filled thereon, and irradiated with a visible light irradiator for 30 seconds to produce an adhesion test piece II.
- Method III for preparing an adhesive specimen (applicable when the dental adhesive composition is used as a dental adhesive using a dental primer)
- a dental composite resin (Esterite ⁇ , manufactured by Tokuyama Dental Co., Ltd.) was filled thereon, and irradiated with a visible light irradiator for 30 seconds to produce an adhesion test piece III.
- Preparation method VI of adhesive test piece (applicable when dental adhesive composition is used as dental primer for composite resin)
- a dental primer was applied to a simulated cavity formed by the same method as in the preparation method I of the adhesive test piece, left for 20 seconds, dried by blowing compressed air for about 10 seconds, and separately prepared thereon.
- the composite resin was filled and irradiated with light with a visible light irradiator for 20 seconds to prepare an adhesion test piece VI.
- Adhesive durability test method Adhesive test pieces I, II, III, or IV are placed in a thermal shock tester, immersed in a 4 ° C water bath for 1 minute, then transferred to a 60 ° C water bath and immersed for 1 minute. The operation of returning to the 4 ° C. water bath was repeated 3000 times. After that, using a tensile tester (Autograph, manufactured by Shimadzu Corporation), it was pulled at a crosshead speed of 2 mm / min, and the tensile bond strength between the enamel or dentin and the composite resin was measured. Four tensile bond strengths per test were measured by the above method, and the average value was measured as the bond strength after the endurance test to evaluate the bond durability.
- a tensile tester Autograph, manufactured by Shimadzu Corporation
- Example 1 25.0 g of an equimolar mixture of PM1 and PM2, 30 g of BisGMA, 20 g of 3G and 25 g of HEMA as a polymerizable monomer, 4.4 g of titanium isopropoxide as a titanium ion source, and 1 as a polymerization initiator 0.25 g of camphorquinone, 1.25 g of DMBE, 85 g of IPA, and 0.25 g of hydrophobic fumed silica having an average particle size of 0.01 ⁇ m and BHT of 0.25 g, HQME of 0.19 g as other components
- 1-step type composite resin adhesive comprising the dental adhesive composition of the present invention was prepared by mixing 19 g of distilled water until uniform and then stirring and mixing until uniform again.
- Examples 2 to 10 According to the method of Example 1, adhesives having different compositions shown in Table 1 were prepared. About each obtained 1-step type
- the composition of the adhesive is shown in Table 1, and the results are shown in Table 2.
- Comparative Examples 1-17 In accordance with the method of Example 1, adhesives having different compositions were prepared. About each obtained 1-step type
- the composition of the adhesive is shown in Table 3, and the result is shown in Table 4.
- Example 1 to 10 the phosphodiester polymerizable monomer and the Group 4 element ions were blended so as to satisfy the constitution shown in the present invention. The test results were good for both enamel and dentin.
- Comparative Examples 1 to 4 are cases where no polyvalent metal ions including Group 4 element ions are contained at all. In any case, the adhesive strength after the durability test is enamel, dentin. Not enough for both. Comparative Examples 5 to 11 were cases where polyvalent metal ions other than Group 4 element ions were contained, and in any case, the adhesion strength after the durability test was not sufficient for both enamel and dentin.
- Comparative Examples 12 to 13 are cases where titanium oxide or zirconium oxide was used as the Group 4 element compound, and there was almost no elution of titanium ions or zirconium ions, and the adhesive strength after the durability test was both enamel and dentin. Was not enough.
- Comparative Example 14 is a case where only an acidic group-containing polymerizable monomer other than the phosphoric acid diester polymerizable monomer is used, and the adhesive strength after the durability test is not sufficient for both enamel and dentin. There wasn't.
- Comparative Examples 15 to 16 are cases where group IV element ions were included but in amounts outside the scope of the present invention, and the adhesive strength after the durability test was not sufficient for both enamel and dentin.
- Examples 11 to 18 relate to a tooth primer prepared so that each component satisfies the constitution shown in the present invention, and in any case, good adhesion strength to enamel and dentin Durability was obtained.
- Comparative Examples 17 to 21 are cases in which the Group 4 element ions are not included, or the Group 4 element ions are included, but are outside the scope of the present invention. The adhesion strength after the durability test is enamel, Not enough for both dentin.
- Comparative Examples 22 to 23 are cases where titanium oxide or zirconium oxide was used as the Group 4 element compound, and there was almost no elution of titanium ions or zirconium ions, and the adhesive strength after the durability test was both enamel and dentin. Was not enough.
- Comparative Example 24 is a case where only an acidic group-containing polymerizable monomer other than the phosphoric acid diester polymerizable monomer is used, and the adhesive strength after the durability test is sufficient for both enamel and dentin It wasn't.
- Comparative Examples 25 to 31 are cases where polyvalent metal ions other than Group 4 element ions are contained, and in any case, the adhesion strength after the durability test is not sufficient for both enamel and dentin. It was.
- Example 19 25.0 g of an equimolar mixture of PM1 and PM2, 30 g of BisGMA, 20 g of 3G and 25 g of HEMA as a polymerizable monomer, 4.4 g of titanium isopropoxide as a titanium ion source, and 1 as a polymerization initiator 0.25 g of camphorquinone, 1.25 g of DMBE, 85 g of IPA, and 0.25 g of hydrophobic fumed silica having an average particle size of 0.01 ⁇ m and BHT of 0.25 g, HQME of 0.19 g as other components These were stirred and mixed until uniform, and a two-step composite resin adhesive was obtained.
- Examples 20-25 According to the method of Example 19, adhesives having different compositions shown in Table 9 were prepared. About each obtained 2 step type composite resin adhesive, after each measurement of a phosphoric acid polymerization monomer and a metal ion, using each, an adhesion test piece is prepared by preparation method III of an adhesion test piece. Prepared and tested for adhesion durability to enamel and dentin. Table 9 shows the composition of the adhesive and Table 10 shows the result.
- Comparative Examples 32-45 According to the method of Example 19, adhesives having different compositions were prepared. About each obtained 2 step type composite resin adhesive, after each measurement and pH measurement of a phosphoric acid system polymerization monomer and a metal ion, it adheres by each using preparation method III of an adhesion test piece Test specimens were prepared and tested for adhesion durability to enamel and dentin. The composition of the adhesive is shown in Table 11, and the result is shown in Table 12.
- Examples 19 to 25 relate to adhesives formulated so that each component satisfies the constitution shown in the present invention, and in any case, durability of good adhesive strength to enamel and dentin Obtained.
- Comparative Examples 32 to 36 do not contain a Group 4 element ion or contain a Group 4 element ion, but are outside the scope of the present invention, and the adhesion strength after the durability test is both enamel and dentin. Was not enough.
- Comparative Examples 37 to 38 are cases where titanium oxide or zirconium oxide was used as the Group 4 element compound, and there was almost no elution of titanium ions or zirconium ions, and the adhesive strength after the durability test was both enamel and dentin. Was not enough.
- Comparative Example 39 is a case where only an acidic group-containing polymerizable monomer other than the phosphoric acid diester polymerizable monomer is used, and the adhesive strength after the durability test is sufficient for both enamel and dentin It wasn't.
- Comparative Examples 40 to 46 are cases where polyvalent metal ions other than Group 4 element ions were included, and in any case, the adhesive strength after the durability test was not sufficient for both enamel and dentin .
- Example 26 For 5.7 g BisGMA, 3.8 g 3G and 0.5 g 14G, 0.06 g CQ, 0.1 g DMBE, 0.1 g perocta H, 0.2 g BS110, 0.002 g HQME and 0.015 g of BHT were added, and the mixture was stirred until it became uniform in the dark to form a matrix. 3.3 g of the obtained matrix was mixed with 6.23 g of F1 and 0.47 g of MF in an agate mortar and degassed under vacuum to obtain a photocuring type with a filler filling rate of 67.0%. A composite resin CR1 was obtained.
- Example 27 to 30, Comparative Examples 47 and 48 A composite resin primer having the composition shown in Table 13 was prepared according to Example 26. In addition, when adding NaF, the aqueous solution of predetermined density
- Examples 26 to 30 relate to primers formulated so that each component satisfies the constitution shown in the present invention, and in any case, durability of good adhesive strength to enamel and dentin is obtained. It was.
- Examples 27 to 30 are primers containing fluoride ions in addition to Group 4 element ions, but no white precipitate was produced after storage at 25 ° C. for 90 days.
- Comparative Examples 47 and 48 are cases in which metal ions other than Group 4 element ions are included, and as a result of the durability test, good adhesion durability was not obtained.
Abstract
Description
1)硬い歯質(主にヒドロキシアパタイトを主成分とするエナメル質)をエッチング処理するための前処理材を塗布、さらに、
2)接着材の歯質の中への浸透を促進するため、プライマーと呼ばれる前処理材の塗布
を行っている。
(A)リン酸水素ジエステル基を有する重合性単量体を10質量%以上含む重合性単量体;
(B)第四族元素イオン
を含有する歯科用接着性組成物であって、
前記第四族元素イオンの含有量が、(A-1)リン酸水素ジエステル基を有する重合性単量体のリン酸水素ジエステル基に対してモル比で0.1~1.0となる量であることを特徴とする歯科用接着性組成物が提供される。
上記歯科用接着性組成物の発明において、
(1)第四族元素イオンがチタンイオンであること
(2)さらに、(C)重合開始剤を含有すること
(3)当該組成物が、酸性を呈すること
(4)さらに、第四族元素イオンに対してモル比で0.4~4.0の(D)フッ化物イオンを含有すること
(5)さらに、(E)水を含有すること
が好適である。
(A)リン酸水素ジエステル基を有する重合性単量体を10質量%以上含む重合性単量体;
(E)水;
(Balk)前記(A-1)リン酸水素ジエステル基を有する重合性単量体のリン酸水素ジエステル基に対して、第四族元素イオンがモル比で0.1~1.0となる量の第四族元素金属アルコキシド
を混合して歯科用接着性組成物を製造する方法において、(A-1)リン酸水素ジエステル基を有する重合性単量体を(Balk)第四族元素金属アルコキシドと予め混合し、次いで(E)水と混合することを特徴とする前記歯科用接着性組成物の製造方法が提供される。
(A)重合性単量体
(A)重合性単量体は、分子中に、アクリロイル基、メタクリロイル基、アクリルアミド基、メタクリルアミド基、ビニル基、アリル基、エチニル基、スチリル基のような重合性不飽和基を有する化合物である。特に硬化速度の点からアクリロイル基、メタクリロイル基、アクリルアミド基、メタクリルアミド基を有する化合物が好ましく、アクリロイル基、メタクリロイル基が最も好ましい。
本発明では、この(A)重合性単量体全成分の10質量%以上を、(A-1)リン酸ジエステル重合性単量体とすることが重要である。このリン酸ジエステル重合性単量体は、歯質の脱灰作用が高いばかりでなく歯質との結合力も高く、さらに本発明においては共存する第四族元素イオンとのイオン結合の形成能にも優れており、特に高い接着強度が得られる。同じ、リン酸から誘導される酸性基であっても、ホスフィン酸基、ホスホン酸基、ホスホン酸水素モノエステル基、リン酸二水素モノエステル基などのリン酸基を有する重合性単量体を用いても、本発明ほどに高い接着強度は得られない。
この(A-1)リン酸ジエステル重合性単量体の含有量は、重合性単量体の10質量%以上とする必要があるが、重合性単量体がリン酸ジエステル基重合性単量体のみであってもよい。
本発明の歯科用接着性組成物は、((A-1)リン酸ジエステル重合性単量体以外の(A-2)他のリン酸から誘導される酸性基を有する重合性単量体(以下、リン酸基含有重合性単量体という)を含んでも良い。該リン酸基含有重合性単量体を例示すれば、ホスフィン酸基を有するものとしてビス(2-メタクリルオキシエチル)ホスフィン酸、ビス(3-メタクリルオキシプロピル)ホスフィン酸、ビス(4-メタクリルオキシブチル)ホスフィン酸等が、ホスホン酸基を有するものとして3-メタクリルオキシプロピルホスホン酸、2-メタクリルオキシエトキシカルボニルメチルホスホン酸、4-メタクリルオキシブトキシカルボニルメチルホスホン酸、6-メタクリルオキシヘキシルオキシカルボニルメチルホスホン酸等が、ホスホン酸水素モノエステル基を有するものとしては3-メタクリルオキシエチルホスホン酸モノ(メタクリルオキシエチル)エステル、3-メタクリルオキシエチルホスホン酸モノフェニルエステル等が挙げられる。
更に、接着材の歯質に対する浸透性を調節したり、硬化体の強度を向上させたりする観点から、(A-3)酸性基を有しない重合性単量体(以下、非酸性基含有重合性単量体という)と併用するのが好適である。こうした非酸性基含有重合性単量体を併用する場合においても、エナメル質及び象牙質の両方に対する接着強度を良好にする観点から、全重合性単量体中において、(A-1)リン酸ジエステル重合性単量体は10質量%以上含有させる必要があり、より好ましくは15~60質量%の範囲で含有させることが好適である。リン酸ジエステル重合性単量体の配合量が少ないと、エナメル質に対する接着強度が低下する傾向があり、逆に多いと象牙質に対する接着強度が低下する傾向がある。
本発明の歯科用接着性組成物は、上記重合性単量体成分とともに、特定量の(B)第四族元素イオンを含有することが必須である。第四族元素イオンの共存下に重合性単量体を硬化させることにより、その接着強度は著しく高まり、耐水性が向上して優れた接着耐久性を備えたものになる。
本発明の歯科用接着性組成物は、水が含有されない場合であっても酸性を呈していれば、口腔内の呼気中の水分や歯面上に存在する水分等が介在することで、接着力向上に有効な程度に脱灰作用を発揮させることが可能である。しかしながら、本発明の歯科用接着性組成物を、プライマー或いはプライマーを使用しない1ステップ型の歯科用接着材とする場合には、より脱灰を進行させより高い接着強度を得る観点から、(E)水を配合させることが好ましい。前述したように水を配合する場合は、リン酸ジエステル重合性単量体と第四族元素化合物との混合を先に行う必要がある。水の配合量は、酸による脱灰を十分に行うために、重合性単量体成分100質量部に対して水を3~150質量部、より好ましくは5~100質量部とすることが好ましい。
本発明の歯科用接着性組成物には、(B)第四族元素イオンの他に、(M)他の金属イオンが含有されていても良い。この他の金属イオンとしては、例えば、アルカリ金属イオン、アルカリ土類金属イオン等の1価および2価の金属イオンが挙げられ、さらにアルミニウム(III)、鉄(III)、ルテニウム(III)、コバルト(III)、ランタン(III)等の3価の金属イオンであっても良い。第四族元素イオンによるイオン架橋を良好に発達させる観点からは、これら他の金属イオン全量の総イオン価数が、含有される全金属イオンの総イオン価数に対して0.5以下、より好ましくは0.3以下の割合であるのが好適である。なお、総イオン価数とは、各イオン種のモル数に価数を掛けた値を合計した数値である。
本発明の歯科用接着性組成物は、水を含有する場合、前記特定の方法で製造すれば高い接着強度を与えるものであるが、一方では長期保存中に徐々に第四族元素イオンの酸化物固体が析出して組成物中の第四族元素イオンの量が低下して接着強度が低下したり、容器のノズルを詰まらせたりする恐れがある。水を含まない歯科用接着性組成物であっても、容器の開閉を繰り返すことにより空気中の水分を取り込み徐々に固体が析出してしまう場合がある。このような場合、組成物に(D)フッ化物イオン(F-)を含有させていると、水による酸化物固体の析出を防止することができ、組成物中の保存安定性が向上する。フッ化物イオン(F-)を存在させると第四族元素イオンの酸化物の析出が防止できる理由は明白ではないが、リン酸ジエステル重合性単量体と第四族元素イオンとのイオン架橋体がフッ化物イオンによって一部フッ素化され、このフッ素化されたイオン架橋体は水による加水分解を受けにくいものと推察される。
本発明の歯科用接着性組成物には、有効量の重合開始剤を配合させても良く、特に上記歯科用接着材として用いる場合必要である。このような重合開始剤としては、任意のタイミングで重合硬化させることができることから、光重合開始剤が好ましい。光重合開始剤としてはカンファーキノン、ベンジル、α-ナフチル、アセトナフテン、ナフトキノン、1,4-フェナントレンキノン、3,4-フェナントレンキノン、9,10-フェナントレンキノン等のα-ジケトン類;2,4-ジエチルチオキサントン等のチオキサントン類;2-ベンジル-ジメチルアミノ-1-(4-モルフォリノフェニル)-ブタノン-1、2-ベンジル-ジエチルアミノ-1-(4-モルフォリノフェニル)-ブタノン-1、2-ベンジル-ジメチルアミノ-1-(4-モルフォリノフェニル)-プロパノン-1、2-ベンジル-ジエチルアミノ-1-(4-モルフォリノフェニル)-プロパノン-1、2-ベンジル-ジメチルアミノ-1-(4-モルフォリノフェニル)-ペンタノン-1、2-ベンジル-ジエチルアミノ-1-(4-モルフォリノフェニル)-ペンタノン等のα-アミノアセトフェノン類;2,4,6-トリメチルベンゾイルジフェニルフォスフィンオキシド、ビス(2,6-ジメトキシベンゾイル)-2,4,4-トリメチルペンチルフォスフィンオキシド等のアシルフォスフィンオキシド誘導体等が好適に使用される。更に、ブチルトリフェニルホウ酸、テトラフェニルホウ酸、或いはテトラキス(p-トリル)ホウ酸のナトリウム塩、又はトリエタノールアンモニウム塩等からなるボレート化合物類;ジベンゾイルパーオキシド、ジ(4-メチルベンゾイル)パーオキシド等のジアシルパーオキサイド類;t-ブチルハイドロパーオキサイド、1,1,3,3-テトラメチルブチルハイドロパーオキサイド等のアルキルハイドロパーオキサイド類;バルビツール酸類などの化学重合開始剤も必要に応じて配合しても良い。更に、ハイドロパーオキサイド類及び/又はボレート類の重合開始活性を高める目的で、バナジウム化合物、クロム化合物、マンガン化合物、鉄化合物、コバルト化合物等の遷移金属化合物を同時に用いても良い。好ましくはオキソバナジウム(IV)ビス(マルトラート)、五酸化二バナジウム等のバナジウム化合物である。また、本発明の組成物をコンポジットレジン用のプライマーとして利用し接着材を用いずに直接歯面に接着させる場合には、プライマーにバナジウム化合物を配合し、コンポジットレジンには光重合開始剤に加えてハイドロパーオキサイド類を配合する態様とすることにより高い接着強度が得られる。
略称及び略号
[(A)重合性単量体]
(A-1)リン酸ジエステル重合性単量体
PM2:ビス(2-メタクリロイルオキシエチル)ハイドロジェンホスフ
ェート
フェニル-P:2-メタクリロイルオキシエチルフェニルハイドロジェン
ホスフェート
(A-2)リン酸基含有重合性単量体
PM1:2-メタクリロイルオキシエチルジハイドロジェンフォスフェー
ト
(A-3)非酸性基含有重合性単量体
BisGMA:2,2‘-ビス(4-(2-ヒドロキシ-3-メタクリルオ
キシプロポキシ)フェニル)プロパン
3G:トリエチレングリコールジメタクリレート
HEMA:2-ヒドロキシエチルメタクリレート
14G:ポリエチレングリコール(平均重合度14)ジメタクリレート
[(B)第四族元素イオン]
(Balk)第四族元素金属アルコキサイド
Ti(O-i-Pr)4:チタニウムテトライソプロポキシド
Zr(O-i-Pr)4:ジルコニウムテトライソプロポキシド
(他の第四族元素化合物)
ZrO2:酸化ジルコニウム
TiF4:フッ化チタン
[(C)重合開始剤]
(光重合開始剤)
CQ:カンファーキノン
DMBE:p-N,N-ジメチルアミノ安息香酸エチル
(他の重合開始剤)
パーオクタH:1,1,3,3-テトラメチルブチルハイドロパーオキサ
イド
BMOV:オキソバナジウム(IV)ビス(マルトラート)
[(D)フッ化物イオン]
(金属フッ化物)
NaF:フッ化ナトリウム
[(M)他の金属イオン]
(他の金属イオン源化合物)
Al(O-i-Pr)3:アルミニウムトリイソプロポキシド
Ca(O-i-Pr)2:カルシウムジイソプロポキシド
Ce(O-i-Pr)4:セリウムテトライソプロポキシド
La(O-i-Pr)3:ランタントリイソプロポキシド
Sc(O-i-Pr)3:スカンジウムトリイソプロポキシド
TiO2:酸化チタン
Y(O-i-Pr)3:イットリウムトリイソプロポキシド
Yb(O-i-Pr)3:イッテリビウムトリイソプロポキシド
[その他成分]
(揮発性の水溶性有機溶媒)
IPA:イソプロピルアルコール
アセトン
(重合禁止剤)
BHT:2,6-ジ-t-ブチル-p-クレゾール
HQME:ハイドロキノンモノメチルエーテル
(紫外線吸収剤)
BS110:2-ヒドロキシ-4-メトキシベンゾフェノン
(無機フィラー)
F1:球状シリカ-ジルコニア(平均粒径0.4μm)をγ―メタクリ
ロイルオキシプロピルトリメトキシシランにより疎水化処理したも
のと、球状シリカ-ジルコニア(平均粒径0.07μm)γ―メタ
クリロイルオキシプロピルトリメトキシシランにより疎水化処理し
たものとを質量比70:30にて混合した混合物
F2:ヒュームドシリカ(平均粒径0.007μm)をジメチルジクロロ
シランにより表面処理したもの
MF:フルオロアルミノシリケートガラス粉末(トクソーアイオノマー、
株式会社トクヤマ製)を湿式の連続型ボールミル(SCミル、三井
鉱山株式会社製)を用いて、平均粒径0.4μmまで粉砕したもの
。
(1)金属イオンの測定方法
本発明の歯科用接着性組成物を調製し攪拌した後、シリンジフィルターでろ過し、濾液の蛍光X線(XRF)分析を行い、重合性単量体1g当りに含まれる各金属イオン濃度(mmol/g)を測定した。
(2)リン酸系重合性単量体の測定方法
本発明の歯科用接着性組成物を調製し攪拌した後、100mlのサンプル管に0.2gを計り取り、IPAを用いて1質量%に希釈した。この液をシリンジフィルターでろ過し、濾液をHPLCで測定し、重合性単量体1g当りに含まれる、リン酸系重合性単量体の濃度(mmol/g)を測定した。
(3)フッ化物イオンの測定方法
歯科用接着性組成物2gと水100g、ジエチルエーテル10gを激しく混合し、静置後、水相をシリンジフィルターでろ過し、濾液をイオンクロマトグラフィーにより測定し、重合性単量体1g当りに含まれるフッ化物イオン濃度(mmol/g)を測定した。
(4)歯科用接着性組成物のpH測定方法
歯科用接着性組成物2gを無水エタノール8gと混合し、中性リン酸塩pH標準液(pH6.86)とフタル酸塩pH標準液(pH4.01)で校正したpH電極(GTS-5211C、東亜ディーケーケー社製)を用いて、速やかにそのpHを測定した。
a)接着試験片の作成方法I(歯科用接着性組成物を歯科用接着材とする場合に適用)
屠殺後24時間以内に牛前歯を抜去し、注水下、#600のエメリーペーパーで唇面に平行になるようにエナメル質および象牙質平面を削り出した。次に、これらの面に圧縮空気を約10秒間吹き付けて乾燥した後、エナメル質および象牙質のいずれかの平面に直径3mmの孔の開いた両面テープを固定し、ついで厚さ0.5mm直径8mmの孔の開いたパラフィンワックスを上記円孔上に同一中心となるように固定して模擬窩洞を形成した。この模擬窩洞内に歯科用接着材を塗布し、20秒間放置後、圧縮空気を約10秒間吹き付けて乾燥し、歯科用可視光照射器(トクソーパワーライト、トクヤマ社製)にて10秒間光照射した。更にその上に歯科用コンポジットレジン(エステライトΣ、トクヤマデンタル社製)を充填し、可視光線照射器により30秒間光照射して、接着試験片Iを作製した。
b)接着試験片の作成方法II(歯科用接着性組成物をプライマーとする場合に適用)
前記a)接着試験片の作成方法Iと同様の方法により形成した模擬窩洞内に歯質用プライマーを塗布し、20秒放置後圧縮空気を約10秒間吹き付けて乾燥し、その上に2ステップ型コンポジットレジン用接着材(トクソーマックボンドIIのボンディング材、トクヤマ社製)を塗布し、歯科用可視光照射器(トクソーパワーライト、トクヤマ社製)にて10秒間光照射した。更にその上に歯科用コンポジットレジン(エステライトΣ、トクヤマデンタル社製)を充填し、可視光線照射器により30秒間光照射して、接着試験片IIを作製した。
c)接着試験片の作成方法III(歯科用接着性組成物を、歯科用プライマーを使用する歯科用接着材とする場合に適用)
前記a)接着試験片の作成方法Iと同様の方法により形成した模擬窩洞内に2ステップ型コンポジットレジン用接着材(トクソーマックボンドII)の歯質用プライマーを塗布し、20秒放置後圧縮空気を約10秒間吹き付けて乾燥し、その上に歯科用接着材を塗布し、歯科用可視光照射器(トクソーパワーライト、トクヤマ社製)にて10秒間光照射した。更にその上に歯科用コンポジットレジン(エステライトΣ、トクヤマデンタル社製)を充填し、可視光線照射器により30秒間光照射して、接着試験片IIIを作製した。
d)接着試験片の作成方法VI(歯科用接着性組成物をコンポジットレジン用歯科用プライマーとする場合に適用)
前記a)接着試験片の作成方法Iと同様の方法により形成した模擬窩洞内に歯質用プライマーを塗布し、20秒放置後圧縮空気を約10秒間吹き付けて乾燥し、その上に別途調製したコンポジットレジンを充填し、可視光線照射器により20秒間光照射して、接着試験片VIを作製した。
接着試験片I、II、III、IVのいずれかを熱衝撃試験器に入れ、4℃の水槽に1分間浸漬後、60℃の水槽に移し1分間浸漬し、再び4℃の水槽に戻す操作を、3000回繰り返した。その後、引張り試験機(オートグラフ、島津製作所製)を用いてクロスヘッドスピード2mm/minにて引張り、エナメル質または象牙質とコンポジットレジンの引張り接着強度を測定した。1試験当り、4本の引張り接着強さを上記方法で測定し、その平均値を耐久試験後の接着強度として測定し、接着耐久性を評価した。
(7)保存による白色沈殿の有無
第四族元素イオンを含む歯科用接着性組成物5gを10mlスクリュー管ビンにいれ、25℃インキューベーターにて90日間保存した。その後、スクリュー管を激しく浸透し、保存前に比べて接着性組成物に白濁が生じている場合に×、濁りの無い場合に○とした。
重合性単量体として25.0gのPM1とPM2の等モル混合物、30gのBisGMA、20gの3G及び25gのHEMAと、チタンイオン源として4.4gのチタンイソプロポキシドと、重合開始剤として1.25gのカンファーキノン、1.25gのDMBEと、85gのIPA、及びその他成分としてBHTを0.25g、HQMEを0.19g、平均粒径0.01μmの疎水性のヒュームドシリカを9.8g用い、これらを均一になるまで攪拌混合した後、19gの蒸留水を加えて再度均一になるまで攪拌混合して本発明の歯科用接着性組成物からなる、1ステップ型コンポジットレジン用接着材を得た。
この接着材について、リン酸系重合性単量体、及び金属イオンの各測定とpH測定を実施した後、これを用いて接着試験片の作成方法Iにより接着試験片を作成し、エナメル質および象牙質に対する接着耐久性を試験した。接着材の組成を表1に、評価結果を表2に示した。
実施例1の方法に準じ、表1に示した組成の異なる接着材を調製した。得られた各1ステップ型コンポジットレジン用接着材について、リン酸系重合性単量体、及び金属イオンの各測定とpH測定を実施した後、各々を用いて接着試験片の作成方法Iにより接着試験片を作成し、エナメル質および象牙質に対する接着耐久性を試験した。接着材の組成を表1、結果を表2に示した。
実施例1の方法に準じ、組成の異なる接着材を調製した。得られた各1ステップ型コンポジットレジン用接着材について、リン酸系重合性単量体、及び金属イオンの各測定とpH測定を実施した後、各々を用いて接着試験片の作成方法Iにより接着試験片を作成し、エナメル質および象牙質に対する接着耐久性を試験した。接着材の組成を表3に、結果を表4に示した。
これに対して、比較例1~4は第四族元素イオンを含む多価金属イオンが全く含まれない場合であり、いずれの場合においても耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例5~11は第四族元素イオン以外の多価金属イオンが含まれる場合であり、いずれの場合も耐久試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例12~13は第四族元素化合物として酸化チタンまたは酸化ジルコニウムを用いた場合であり、チタニウムイオンまたはジルコニウムイオンの溶出は殆ど無く、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例14はリン酸ジエステル重合性単量体以外の酸性基含有重合性単量体のみを用いた場合であり、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例15~16は第四族元素イオンが含まれるものの本発明の範囲外の量の場合であり、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。
表5、表7に示す組成のプライマーを、実施例1の接着材と同様に調製し、得られたプライマーを、2ステップ型コンポジットレジン用接着材用のプライマーとして用いた。プライマーに含まれる酸性基含有重合性単量体及び各種イオンの測定し、次いで、これを用いて接着試験片の作成方法IIにより接着試験片を作成し、耐久試験後のエナメル質、象牙質接着強度を評価した。評価結果を表6、表8に示した。
比較例17~21は、第四族元素イオンが含まれない、または第四族元素イオンが含まれるものの本発明の範囲外である場合であり、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例22~23は第四族元素化合物として酸化チタンまたは酸化ジルコニウムを用いた場合であり、チタニウムイオンまたはジルコニウムイオンの溶出は殆ど無く、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例24は、リン酸ジエステル重合性単量体以外の酸性基含有重合性単量体のみを用いた場合であり、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例25~31は、第四族元素イオン以外の多価金属イオンが含まれる場合であり、いずれの場合も耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。
重合性単量体として25.0gのPM1とPM2の等モル混合物、30gのBisGMA、20gの3G及び25gのHEMAと、チタンイオン源として4.4gのチタンイソプロポキシドと、重合開始剤として1.25gのカンファーキノン、1.25gのDMBEと、85gのIPA、及びその他成分としてBHTを0.25g、HQMEを0.19g、平均粒径0.01μmの疎水性のヒュームドシリカを9.8g用い、これらを均一になるまで攪拌混合した後、2ステップ型コンポジットレジン用接着材を得た。
この接着材について、リン酸系重合性単量体、及び金属イオンの各測定を実施した後、これを用いて接着試験片の作成方法IIIにより接着試験片を作成し、エナメル質および象牙質に対する接着耐久性を試験した。接着材の組成を表9に、評価結果を表10に示した。
実施例19の方法に準じ、表9に示した組成の異なる接着材を調製した。得られた各2ステップ型コンポジットレジン用接着材について、リン酸系重合性単量体、及び金属イオンの各測定を実施した後、各々を用いて接着試験片の作成方法IIIにより接着試験片を作成し、エナメル質および象牙質に対する接着耐久性を試験した。接着材の組成を表9、結果を表10に示した。
実施例19の方法に準じ、組成の異なる接着材を調製した。得られた各2ステップ型コンポジットレジン用接着材について、リン酸系重合性単量体、及び金属イオンの各測定とpH測定を実施した後、各々を用いて接着試験片の作成方法IIIにより接着試験片を作成し、エナメル質および象牙質に対する接着耐久性を試験した。接着材の組成を表11に、結果を表12に示した。
比較例32~36は、第四族元素イオンが含まれない、または第四族元素イオンが含まれるものの本発明の範囲外であり、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例37~38は第四族元素化合物として酸化チタンまたは酸化ジルコニウムを用いた場合であり、チタニウムイオンまたはジルコニウムイオンの溶出は殆ど無く、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例39は、リン酸ジエステル重合性単量体以外の酸性基含有重合性単量体のみを用いた場合であり、耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。比較例40~46は第四族元素イオン以外の多価金属イオンが含まれる場合であり、いずれの場合も耐久性試験後の接着強度は、エナメル質、象牙質双方に対して十分ではなかった。
5.7gのBisGMA、3.8gの3Gおよび0.5gの14Gに対して、0.06gのCQ、0.1gのDMBE、0.1gのパーオクタH、0.2gのBS110、0.002gのHQMEおよび0.015gのBHTを加え、暗所にて均一になるまで撹拌し、マトリックスとした。得られたマトリックスを3.3gを、6.23gのF1および0.47gのMFとメノウ乳鉢で混合し、真空下にて脱泡することにより、フィラー充填率67.0%の光硬化型のコンポジットレジンCR1を得た。
重合性単量体として44.0gのPM1とPM2の等モル混合物、7.2gのBisGMA、4.8gの3G及び44gのHEMAと、チタンイオン源として10.0gのチタンイソプロポキシドと、重合開始剤として0.75gのBMOV、0.14gのBHT、300gのアセトン、27gのF2を均一になるまで攪拌混合した後、33gの蒸留水を加えて再度均一になるまで攪拌混合して本発明の接着性組成物からなる、コンポジットレジン用プライマーを得た。
このプライマーについて、リン酸系重合性単量体、及び金属イオンの各測定とpH測定を実施した後、上記コンポジットレジンCR1と、調製したプライマーを用いて接着試験片の作成方法IVにより接着試験片を作成し、エナメル質および象牙質に対する接着耐久性を試験した。接着材の組成を表13に、評価結果を表14に示した。
実施例26に準じて、表13に示す組成のコンポジットレジン用プライマーを調製した。尚、NaFを添加する場合には、所定の濃度の水溶液を予め調製し、水と一緒に最後に添加した。上記コンポジットレジンCR1と、調製したプライマーを用いて接着試験片の作成方法IVにより接着試験片を作成し、エナメル質および象牙質に対する接着耐久性を試験した。接着材の組成を表13に、評価結果を表14に示した。
Claims (7)
- (A)リン酸水素ジエステル基を有する重合性単量体を10質量%以上含む重合性単量体;
(B)第四族元素イオン
を含有する歯科用接着性組成物であって、
前記第四族元素イオンの含有量が、(A-1)リン酸水素ジエステル基を有する重合性単量体のリン酸水素ジエステル基に対してモル比で0.1~1.0となる量であることを特徴とする歯科用接着性組成物。 - 第四族元素イオンが、チタンイオンであることを特徴とする請求項1に記載の歯科用接着性組成物。
- さらに、(C)重合開始剤を含有してなることを特徴とする請求項1に記載の歯科用接着性組成物。
- 酸性を呈することを特徴とする請求項1に記載の歯科用接着性組成物。
- さらに、第四族元素イオンに対してモル比で0.4~4.0の(D)フッ化物イオンを含有してなることを特徴とする請求項1に記載の歯科用接着性組成物。
- さらに、(E)水を含有してなることを特徴とする請求項1に記載の歯科用接着性組成物。
- (A)リン酸水素ジエステル基を有する重合性単量体を10質量%以上含む重合性単量体;
(E)水;
(Balk)前記(A-1)リン酸水素ジエステル基を有する重合性単量体のリン酸水素ジエステル基に対して、第四族元素イオンがモル比で0.1~1.0となる量の第四族元素金属アルコキシド
を混合して歯科用接着性組成物を製造する方法において、(A-1)リン酸水素ジエステル基を有する重合性単量体を(Balk)第四族元素金属アルコキシドと予め混合し、次いで(E)水と混合することを特徴とする前記歯科用接着性組成物の製造方法。
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JP2010521719A JP5484334B2 (ja) | 2008-07-25 | 2009-07-22 | 歯科用接着性組成物 |
US12/999,464 US8796354B2 (en) | 2008-07-25 | 2009-07-22 | Dental adhesive composition |
EP09800415.3A EP2305205B1 (en) | 2008-07-25 | 2009-07-22 | Dental adhesive composition |
CN2009801253211A CN102076310B (zh) | 2008-07-25 | 2009-07-22 | 牙科用粘接性组合物 |
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US (1) | US8796354B2 (ja) |
EP (1) | EP2305205B1 (ja) |
JP (1) | JP5484334B2 (ja) |
CN (1) | CN102076310B (ja) |
WO (1) | WO2010010901A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2508164A1 (en) * | 2009-12-04 | 2012-10-10 | Tokuyama Dental Corporation | Dental adhesive composition |
JP2013189399A (ja) * | 2012-03-14 | 2013-09-26 | Tokuyama Dental Corp | 歯科用接着性組成物 |
JP2013193971A (ja) * | 2012-03-16 | 2013-09-30 | Tokuyama Dental Corp | 歯科用接着材キット |
JP2015067551A (ja) * | 2013-09-27 | 2015-04-13 | 株式会社トクヤマデンタル | 歯科用接着性組成物 |
JP2015137236A (ja) * | 2014-01-21 | 2015-07-30 | 株式会社トクヤマデンタル | 歯科用接着性組成物 |
JP2018065831A (ja) * | 2017-11-24 | 2018-04-26 | 株式会社トクヤマデンタル | 歯科用接着性組成物 |
EP3733151A1 (en) | 2019-03-26 | 2020-11-04 | Shofu Inc. | Low-water-sensitive dental composition |
KR20210103029A (ko) * | 2020-02-12 | 2021-08-23 | 주식회사 휴덴스바이오 | 치과 임플란트용 서지컬 가이드 조성물 |
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Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52113089A (en) | 1976-03-17 | 1977-09-21 | Kuraray Co | Dental material |
JPS53113843A (en) | 1977-03-15 | 1978-10-04 | Kuraray Co Ltd | Adhesive for rigid tissue |
JPS56136865A (en) * | 1980-03-28 | 1981-10-26 | Kanebo Ltd | Adhesive composition for hard living tissue |
JPS5821687A (ja) | 1981-07-29 | 1983-02-08 | Kuraray Co Ltd | (メタ)アクリロイルオキシアルキルジハイドロジエンホスフエ−ト |
JPH09263604A (ja) | 1996-03-28 | 1997-10-07 | Tokuyama Corp | 接着材用光重合開始剤および光重合性接着材 |
JPH10236912A (ja) | 1997-02-27 | 1998-09-08 | Tokuyama Corp | 接着性組成物 |
JP2000086421A (ja) | 1998-09-08 | 2000-03-28 | Gc Corp | 歯科用接着剤セット |
JP2001072523A (ja) | 1999-07-08 | 2001-03-21 | Shiyoufuu:Kk | 歯科用接着剤組成物 |
JP2002047355A (ja) * | 2000-05-25 | 2002-02-12 | Asahi Fiber Glass Co Ltd | 無機質繊維補強難燃性樹脂形成用組成物及び無機質繊維補強難燃性樹脂複合体 |
JP2002327023A (ja) * | 2001-02-27 | 2002-11-15 | Sanyo Chem Ind Ltd | 含金属単量体組成物および樹脂組成物 |
WO2008102489A1 (ja) * | 2007-02-19 | 2008-08-28 | Tokuyama Dental Corporation | 歯科用接着性組成物 |
JP2008201726A (ja) | 2007-02-20 | 2008-09-04 | Tokuyama Dental Corp | 歯科用接着性組成物 |
WO2009063967A1 (ja) * | 2007-11-15 | 2009-05-22 | Tokuyama Dental Corporation | 歯科用硬化性組成物 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3296175A (en) * | 1961-12-21 | 1967-01-03 | Monsanto Co | Polymer latices which have high viscosities and coating composition containing the same |
US3256233A (en) * | 1964-09-24 | 1966-06-14 | Monsanto Co | Water-base coating composition of emulsified polymer solids and styrenemaleic interpolymer |
US3259601A (en) * | 1963-07-31 | 1966-07-05 | Koppers Co Inc | Baked metal primers of ternary butadiene polymer and phosphoric acid |
US3377382A (en) * | 1964-07-16 | 1968-04-09 | Gen Mills Inc | Difatty alkyl-diloweralkyl quaternary ammonium compounds |
GB1194741A (en) * | 1967-11-13 | 1970-06-10 | Ici Ltd | Improvements in or relating to the Manufacture of Polyamides |
US3779970A (en) * | 1972-03-13 | 1973-12-18 | Dow Chemical Co | Thickened latex coatings with improved flow and leveling properties |
GB1569021A (en) * | 1976-03-17 | 1980-06-11 | Kuraray Co | Adhesive cementing agents containing partial phosphonic orphosphonic acid esters |
US4539382A (en) * | 1981-07-29 | 1985-09-03 | Kuraray Co., Ltd. | Adhesive composition |
US4650847A (en) * | 1981-07-29 | 1987-03-17 | Kuraray Co., Ltd. | Adhesive composition |
US5154762A (en) * | 1991-05-31 | 1992-10-13 | Minnesota Mining And Manufacturing Company | Universal water-based medical and dental cement |
US5888491A (en) * | 1993-12-06 | 1999-03-30 | Minnesota Mining And Manufacturing Company | Optionally crosslinkable coatings, compositions and methods of use |
US5925690A (en) * | 1995-11-20 | 1999-07-20 | Tokuyama Corproation | Dental primer composition and kit |
DE19702704A1 (de) * | 1997-01-25 | 1998-07-30 | Roland Dipl Phys Dr Goebel | Haftfeste und feuchtestabile Legierungs-Kunststoff-Verbundschicht und Verfahren zu ihrer Herstellung |
US7041714B2 (en) * | 2001-12-28 | 2006-05-09 | Tokuyama Corporation | Dental adhesive |
ATE324856T1 (de) * | 2003-07-14 | 2006-06-15 | 3M Espe Ag | Klebstoffzusammensetzung mit verringerter polarität nach der polymerisation |
EP2206488B1 (en) * | 2007-10-16 | 2016-04-13 | Tokuyama Dental Corporation | One-pack type coating material for tooth surface |
-
2009
- 2009-07-22 EP EP09800415.3A patent/EP2305205B1/en active Active
- 2009-07-22 US US12/999,464 patent/US8796354B2/en active Active
- 2009-07-22 WO PCT/JP2009/063121 patent/WO2010010901A1/ja active Application Filing
- 2009-07-22 CN CN2009801253211A patent/CN102076310B/zh active Active
- 2009-07-22 JP JP2010521719A patent/JP5484334B2/ja active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52113089A (en) | 1976-03-17 | 1977-09-21 | Kuraray Co | Dental material |
JPS53113843A (en) | 1977-03-15 | 1978-10-04 | Kuraray Co Ltd | Adhesive for rigid tissue |
JPS56136865A (en) * | 1980-03-28 | 1981-10-26 | Kanebo Ltd | Adhesive composition for hard living tissue |
JPS5821687A (ja) | 1981-07-29 | 1983-02-08 | Kuraray Co Ltd | (メタ)アクリロイルオキシアルキルジハイドロジエンホスフエ−ト |
JPH09263604A (ja) | 1996-03-28 | 1997-10-07 | Tokuyama Corp | 接着材用光重合開始剤および光重合性接着材 |
JPH10236912A (ja) | 1997-02-27 | 1998-09-08 | Tokuyama Corp | 接着性組成物 |
JP2000086421A (ja) | 1998-09-08 | 2000-03-28 | Gc Corp | 歯科用接着剤セット |
JP2001072523A (ja) | 1999-07-08 | 2001-03-21 | Shiyoufuu:Kk | 歯科用接着剤組成物 |
JP2002047355A (ja) * | 2000-05-25 | 2002-02-12 | Asahi Fiber Glass Co Ltd | 無機質繊維補強難燃性樹脂形成用組成物及び無機質繊維補強難燃性樹脂複合体 |
JP2002327023A (ja) * | 2001-02-27 | 2002-11-15 | Sanyo Chem Ind Ltd | 含金属単量体組成物および樹脂組成物 |
WO2008102489A1 (ja) * | 2007-02-19 | 2008-08-28 | Tokuyama Dental Corporation | 歯科用接着性組成物 |
JP2008201726A (ja) | 2007-02-20 | 2008-09-04 | Tokuyama Dental Corp | 歯科用接着性組成物 |
WO2009063967A1 (ja) * | 2007-11-15 | 2009-05-22 | Tokuyama Dental Corporation | 歯科用硬化性組成物 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2305205A4 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2508164A1 (en) * | 2009-12-04 | 2012-10-10 | Tokuyama Dental Corporation | Dental adhesive composition |
EP2508164A4 (en) * | 2009-12-04 | 2014-01-15 | Tokuyama Dental Corp | COMPOSITION FOR TEETH |
US8815974B2 (en) | 2009-12-04 | 2014-08-26 | Tokuyama Dental Corporation | Dental adhesive composition |
JP2013189399A (ja) * | 2012-03-14 | 2013-09-26 | Tokuyama Dental Corp | 歯科用接着性組成物 |
JP2013193971A (ja) * | 2012-03-16 | 2013-09-30 | Tokuyama Dental Corp | 歯科用接着材キット |
JP2015067551A (ja) * | 2013-09-27 | 2015-04-13 | 株式会社トクヤマデンタル | 歯科用接着性組成物 |
JP2015137236A (ja) * | 2014-01-21 | 2015-07-30 | 株式会社トクヤマデンタル | 歯科用接着性組成物 |
JP2018065831A (ja) * | 2017-11-24 | 2018-04-26 | 株式会社トクヤマデンタル | 歯科用接着性組成物 |
EP3733151A1 (en) | 2019-03-26 | 2020-11-04 | Shofu Inc. | Low-water-sensitive dental composition |
US11207247B2 (en) | 2019-03-26 | 2021-12-28 | Shofu Inc. | Low water-sensitive dental composition |
KR20210103029A (ko) * | 2020-02-12 | 2021-08-23 | 주식회사 휴덴스바이오 | 치과 임플란트용 서지컬 가이드 조성물 |
KR102424955B1 (ko) * | 2020-02-12 | 2022-07-26 | 주식회사 휴덴스바이오 | 치과 임플란트용 서지컬 가이드 조성물 |
Also Published As
Publication number | Publication date |
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CN102076310A (zh) | 2011-05-25 |
CN102076310B (zh) | 2013-01-16 |
EP2305205B1 (en) | 2018-04-11 |
US20110098375A1 (en) | 2011-04-28 |
JPWO2010010901A1 (ja) | 2012-01-05 |
EP2305205A1 (en) | 2011-04-06 |
JP5484334B2 (ja) | 2014-05-07 |
US8796354B2 (en) | 2014-08-05 |
EP2305205A4 (en) | 2014-01-08 |
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