JP6893148B2 - 歯科用セメント - Google Patents
歯科用セメント Download PDFInfo
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- JP6893148B2 JP6893148B2 JP2017155688A JP2017155688A JP6893148B2 JP 6893148 B2 JP6893148 B2 JP 6893148B2 JP 2017155688 A JP2017155688 A JP 2017155688A JP 2017155688 A JP2017155688 A JP 2017155688A JP 6893148 B2 JP6893148 B2 JP 6893148B2
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- Prior art keywords
- acid
- glass powder
- dental cement
- mass
- component
- Prior art date
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- 239000003479 dental cement Substances 0.000 title claims description 60
- 239000000843 powder Substances 0.000 claims description 66
- 239000011521 glass Substances 0.000 claims description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000002253 acid Substances 0.000 claims description 19
- 229920000642 polymer Polymers 0.000 claims description 17
- 150000007519 polyprotic acids Polymers 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 239000011701 zinc Substances 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 7
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 6
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 4
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 4
- 235000015165 citric acid Nutrition 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000001630 malic acid Substances 0.000 claims description 4
- 235000011090 malic acid Nutrition 0.000 claims description 4
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011668 ascorbic acid Substances 0.000 claims description 3
- 235000010323 ascorbic acid Nutrition 0.000 claims description 3
- 229960005070 ascorbic acid Drugs 0.000 claims description 3
- 239000000174 gluconic acid Substances 0.000 claims description 3
- 235000012208 gluconic acid Nutrition 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 2
- 210000004268 dentin Anatomy 0.000 description 23
- 230000000694 effects Effects 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 20
- 239000007788 liquid Substances 0.000 description 18
- 239000000203 mixture Substances 0.000 description 12
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 7
- 238000005115 demineralization Methods 0.000 description 7
- 230000002328 demineralizing effect Effects 0.000 description 7
- 239000011975 tartaric acid Substances 0.000 description 7
- 235000002906 tartaric acid Nutrition 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000003178 glass ionomer cement Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 229910052712 strontium Inorganic materials 0.000 description 4
- 241000283690 Bos taurus Species 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 238000010669 acid-base reaction Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 3
- VRGNUPCISFMPEM-ZVGUSBNCSA-L zinc;(2r,3r)-2,3-dihydroxybutanedioate Chemical compound [Zn+2].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O VRGNUPCISFMPEM-ZVGUSBNCSA-L 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- FVRNDBHWWSPNOM-UHFFFAOYSA-L strontium fluoride Chemical compound [F-].[F-].[Sr+2] FVRNDBHWWSPNOM-UHFFFAOYSA-L 0.000 description 2
- 229910001637 strontium fluoride Inorganic materials 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- -1 tartaric acid ion Chemical class 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 150000003752 zinc compounds Chemical class 0.000 description 2
- BHHYHSUAOQUXJK-UHFFFAOYSA-L zinc fluoride Chemical compound F[Zn]F BHHYHSUAOQUXJK-UHFFFAOYSA-L 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- XVOUMQNXTGKGMA-OWOJBTEDSA-N (E)-glutaconic acid Chemical compound OC(=O)C\C=C\C(O)=O XVOUMQNXTGKGMA-OWOJBTEDSA-N 0.000 description 1
- 239000001124 (E)-prop-1-ene-1,2,3-tricarboxylic acid Substances 0.000 description 1
- SZTBMYHIYNGYIA-UHFFFAOYSA-N 2-chloroacrylic acid Chemical compound OC(=O)C(Cl)=C SZTBMYHIYNGYIA-UHFFFAOYSA-N 0.000 description 1
- CLWNPUARORRDFD-UHFFFAOYSA-N 2-hydroxybutanedioic acid;zinc Chemical compound [Zn].OC(=O)C(O)CC(O)=O CLWNPUARORRDFD-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229910017119 AlPO Inorganic materials 0.000 description 1
- OSDWBNJEKMUWAV-UHFFFAOYSA-N Allyl chloride Chemical compound ClCC=C OSDWBNJEKMUWAV-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 208000008617 Tooth Demineralization Diseases 0.000 description 1
- 206010072665 Tooth demineralisation Diseases 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229940091181 aconitic acid Drugs 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- GTZCVFVGUGFEME-IWQZZHSRSA-N cis-aconitic acid Chemical compound OC(=O)C\C(C(O)=O)=C\C(O)=O GTZCVFVGUGFEME-IWQZZHSRSA-N 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- FZFYOUJTOSBFPQ-UHFFFAOYSA-M dipotassium;hydroxide Chemical compound [OH-].[K+].[K+] FZFYOUJTOSBFPQ-UHFFFAOYSA-M 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- HNEGQIOMVPPMNR-NSCUHMNNSA-N mesaconic acid Chemical compound OC(=O)C(/C)=C/C(O)=O HNEGQIOMVPPMNR-NSCUHMNNSA-N 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- UFQXGXDIJMBKTC-UHFFFAOYSA-N oxostrontium Chemical compound [Sr]=O UFQXGXDIJMBKTC-UHFFFAOYSA-N 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 229910001392 phosphorus oxide Inorganic materials 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 235000011044 succinic acid Nutrition 0.000 description 1
- VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 description 1
- MHMUCYJKZUZMNJ-OWOJBTEDSA-N trans-3-chloroacrylic acid Chemical compound OC(=O)\C=C\Cl MHMUCYJKZUZMNJ-OWOJBTEDSA-N 0.000 description 1
- GTZCVFVGUGFEME-UHFFFAOYSA-N trans-aconitic acid Natural products OC(=O)CC(C(O)=O)=CC(O)=O GTZCVFVGUGFEME-UHFFFAOYSA-N 0.000 description 1
- WGIWBXUNRXCYRA-UHFFFAOYSA-H trizinc;2-hydroxypropane-1,2,3-tricarboxylate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O WGIWBXUNRXCYRA-UHFFFAOYSA-H 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 239000011746 zinc citrate Substances 0.000 description 1
- 235000006076 zinc citrate Nutrition 0.000 description 1
- 229940068475 zinc citrate Drugs 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/70—Preparations for dentistry comprising inorganic additives
- A61K6/71—Fillers
- A61K6/77—Glass
-
- 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
- A61K6/871—Quartz; SiO2
-
- 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
- A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
- A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- A61K6/889—Polycarboxylate cements; Glass ionomer cements
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Dental Preparations (AREA)
Description
本実施形態の歯科用セメントは、ガラス粉末を含む第一の成分と、ポリカルボン酸系重合体、有機多塩基酸及び水を含む第二の成分を有する。
第一の成分は、粉末成分及び液体成分のいずれであってもよい。
ガラス粉末は、亜鉛及びケイ素を含むが、フッ素をさらに含むことが好ましい。これにより、歯科用セメントの齲蝕防止効果が向上する。
ガラス粉末は、亜鉛化合物及びケイ素化合物を含む原料組成物を溶融させた後、粉砕することにより製造することができる。
第二の成分は、液体成分であるが、液体成分は、液状及びペースト状のいずれであってもよい。
ポリカルボン酸系重合体としては、特に限定されないが、α,β−不飽和カルボン酸の単独重合体又は共重合体が挙げられる。
有機多塩基酸としては、共役塩基と亜鉛イオンの塩の20℃における水に対する溶解度が1g/100mL以上であれば、特に限定されないが、クエン酸、リンゴ酸、コハク酸、グルコン酸等の多塩基カルボン酸、アスコルビン酸等が挙げられ、二種以上併用してもよい。
歯科用セメントの練和物を調製する際の、第二の成分に対する第一の成分の質量比は、1〜5であることが好ましい。第二の成分に対する第一の成分の質量比が1以上であると、歯科用セメントの硬化物の強度が向上し、5以下であると、歯科用セメントの操作性が向上する。
酸化亜鉛(ZnO)、無水ケイ酸(SiO2)、フッ化カルシウム(CaF2)、酸化ランタン(La2O3)、フッ化アルミニウム(AlF3)、フッ化ストロンチウム(SrF2)、フッ化ナトリウム(NaF)、リン酸アルミニウム(AlPO4)、酸化アルミニウム(Al2O3)を所定の比率で配合した後、乳鉢を用いて、充分に混合撹拌し、原料組成物を得た。原料組成物を白金るつぼに入れた後、電気炉内に設置した。電気炉を1300℃まで昇温し、溶融させて十分均質化した後、水中に流し出し、塊状のガラスを得た。アルミナ製のボールミルを用いて、塊状のガラスを20時間粉砕した後、120メッシュの篩を通過させ、第一の成分としての、ガラス粉末1〜4を得た。
蛍光X線分析装置ZSX Primus II(リガク社製)を用いて、ガラス粉末1〜4を分析し、組成を求めた。
表2に示す各成分を混合し、第二の成分としての、液1〜8を得た。
リンゴ酸(リンゴ酸亜鉛):≧1g/100mL
酢酸(酢酸亜鉛):30g/100mL
酒石酸(酒石酸亜鉛):0.022g/100mL
[実施例1−1〜1−6、比較例1−1、1−2]
表3に示す実施例1−1〜1−6、比較例1−1、1−2の歯科用セメントの歯質脱灰抑制効果及び硬化時間を評価した。
ガラス粉末1と液1〜8を、それぞれ液1〜8に対するガラス粉末1の質量比が2となるように混合した後、練和し、歯科用セメントの練和物を得た。
牛歯象牙質を注水下、耐水研磨紙#1200で研磨し、平坦にした研磨面に、直径が3mmの穴が開いているポリテトラフルオロエチレン製のシールを貼り付けた。穴の面の半分に歯科用セメントの練和物を塗布し、37℃、100%RHの恒温層に24時間放置し、歯科用セメントの練和物を硬化させた。
良い:ミネラルロス量が2000体積%・μm以上2500体積%・μm未満である場合
悪い:ミネラルロス量が2500体積%・μm以上である場合
ここで、歯科用セメントの練和物を全く塗布しなかった以外は、上記と同様にして、歯質脱灰抑制効果を評価したところ、ミネラルロス量は、4302体積%・μm以上であった。
23℃に調整した金型(8mm×75mm×100mm)をアルミニウム箔の上に置き、金型の上面の高さまで、歯科用セメントの練和物を充填した。練和終了から60秒後に、37℃、100%RHの恒温層に放置し、歯科用セメントの練和物を硬化させた。練和終了から90秒後に、歯科用セメントの硬化物の表面に垂直に400gのビカー針を降ろし、5秒間維持した。この操作を10秒間隔で実施し、ビカー針によるくぼみが完全な円形でなくなるまでの時間を求めた(ISO 9917-1 Water-based cements Part1:Powder/liquid acid-base cements 8.1 Net setting time参照)。
良い:硬化時間が6分を超え、10分以下である場合
悪い:硬化時間が1分30秒未満である、又は、10分を超える場合
表3に、実施例1−1〜1−6、比較例1−1、1−2の歯科用セメントの歯質脱灰抑制効果及び硬化時間の評価結果を示す。
ガラス粉末1の代わりに、ガラス粉末2を用いた以外は、それぞれ実施例1−1〜1−6、比較例1−1、1−2と同様にして、実施例2−1〜2−6、比較例2−1、2−2の歯科用セメントの歯質脱灰抑制効果及び硬化時間を評価した。
ガラス粉末1の代わりに、ガラス粉末3を用いた以外は、実施例1−1〜1−6、比較例1−1、1−2と同様にして、実施例3−1〜3−6、比較例3−1、3−2の歯科用セメントの歯質脱灰抑制効果及び硬化時間を評価した。
ガラス粉末1の代わりに、ガラス粉末4を用いた以外は、実施例1−1〜1−6、比較例1−1、1−2と同様にして、比較例4−1〜4−8の歯科用セメントの歯質脱灰抑制効果及び硬化時間を評価した。
Claims (2)
- ガラス粉末を含む第一の成分と、
ポリカルボン酸系重合体、有機多塩基酸及び水を含む第二の成分を有し、
前記ガラス粉末は、亜鉛及びケイ素を含み、
前記有機多塩基酸の共役塩基と亜鉛イオンの塩は、20℃における水に対する溶解度が1g/100mL以上であり、
前記有機多塩基酸は、クエン酸、リンゴ酸、コハク酸、グルコン酸及びアスコルビン酸からなる群より選ばれる1種以上であることを特徴とする歯科用セメント。 - 前記ガラス粉末は、フッ素をさらに含むことを特徴とする請求項1に記載の歯科用セメント。
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US4005706A (en) * | 1974-05-28 | 1977-02-01 | Smith David F | Type of adhesive cement and certain improved products made possible thereby |
JPS52101893A (en) * | 1976-02-24 | 1977-08-26 | Nippon Kayaku Kk | Liquid hardener for dental glass ionomer cement |
JPS5938926B2 (ja) | 1980-06-04 | 1984-09-20 | 而至歯科工業株式会社 | フルオロ錯塩を含む歯科用グラスアイオノマ−セメント硬化液 |
JPS6267008A (ja) | 1985-09-20 | 1987-03-26 | G C Dental Ind Corp | 歯科用グラスアイオノマ−セメント用フルオロアルミノシリケ−トガラス粉末 |
GB2264711A (en) * | 1992-03-06 | 1993-09-08 | British Tech Group | Glass-polyalkenoate cements |
JPH05285214A (ja) * | 1992-04-13 | 1993-11-02 | Showa Denko Kk | 医療用硬化組成物 |
JP2544073B2 (ja) * | 1993-04-02 | 1996-10-16 | 新田ゼラチン株式会社 | 医科歯科用硬化型セメント |
EP1622843B1 (en) * | 2003-04-08 | 2015-06-03 | Ada Foundation | Premixed self-hardening bone graft pastes |
ES2429902T3 (es) * | 2007-12-14 | 2013-11-18 | Dentsply Detrey Gmbh | Composición para endurecimiento |
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