EP2640308A1 - Procede de fabrication d'une prothese dentaire - Google Patents
Procede de fabrication d'une prothese dentaireInfo
- Publication number
- EP2640308A1 EP2640308A1 EP11796820.6A EP11796820A EP2640308A1 EP 2640308 A1 EP2640308 A1 EP 2640308A1 EP 11796820 A EP11796820 A EP 11796820A EP 2640308 A1 EP2640308 A1 EP 2640308A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resin
- pressure
- composite
- paste
- solid composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 78
- 239000011347 resin Substances 0.000 claims abstract description 53
- 229920005989 resin Polymers 0.000 claims abstract description 53
- 239000000945 filler Substances 0.000 claims abstract description 32
- 239000007787 solid Substances 0.000 claims abstract description 29
- 238000003754 machining Methods 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000003054 catalyst Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 5
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000178 monomer Substances 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 238000011960 computer-aided design Methods 0.000 claims description 3
- 239000005354 aluminosilicate glass Substances 0.000 claims description 2
- 229910052586 apatite Inorganic materials 0.000 claims description 2
- WVMPCBWWBLZKPD-UHFFFAOYSA-N dilithium oxido-[oxido(oxo)silyl]oxy-oxosilane Chemical compound [Li+].[Li+].[O-][Si](=O)O[Si]([O-])=O WVMPCBWWBLZKPD-UHFFFAOYSA-N 0.000 claims description 2
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000011029 spinel Substances 0.000 claims description 2
- 229910052596 spinel Inorganic materials 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 229920001567 vinyl ester resin Polymers 0.000 claims description 2
- XASAPYQVQBKMIN-UHFFFAOYSA-K ytterbium(iii) fluoride Chemical compound F[Yb](F)F XASAPYQVQBKMIN-UHFFFAOYSA-K 0.000 claims description 2
- 229910052845 zircon Inorganic materials 0.000 claims description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- 125000005395 methacrylic acid group Chemical group 0.000 claims 1
- 239000000843 powder Substances 0.000 description 18
- 239000000203 mixture Substances 0.000 description 17
- 238000001723 curing Methods 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 7
- 238000006116 polymerization reaction Methods 0.000 description 7
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 6
- 239000008119 colloidal silica Substances 0.000 description 6
- UEKHZPDUBLCUHN-UHFFFAOYSA-N 2-[[3,5,5-trimethyl-6-[2-(2-methylprop-2-enoyloxy)ethoxycarbonylamino]hexyl]carbamoyloxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOC(=O)NCCC(C)CC(C)(C)CNC(=O)OCCOC(=O)C(C)=C UEKHZPDUBLCUHN-UHFFFAOYSA-N 0.000 description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 5
- 229910000077 silane Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 4
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 4
- AMFGWXWBFGVCKG-UHFFFAOYSA-N Panavia opaque Chemical compound C1=CC(OCC(O)COC(=O)C(=C)C)=CC=C1C(C)(C)C1=CC=C(OCC(O)COC(=O)C(C)=C)C=C1 AMFGWXWBFGVCKG-UHFFFAOYSA-N 0.000 description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 4
- LTHJXDSHSVNJKG-UHFFFAOYSA-N 2-[2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOCCOC(=O)C(C)=C LTHJXDSHSVNJKG-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000004342 Benzoyl peroxide Substances 0.000 description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 3
- 239000011350 dental composite resin Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000002241 glass-ceramic Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- JJRDRFZYKKFYMO-UHFFFAOYSA-N 2-methyl-2-(2-methylbutan-2-ylperoxy)butane Chemical compound CCC(C)(C)OOC(C)(C)CC JJRDRFZYKKFYMO-UHFFFAOYSA-N 0.000 description 2
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052656 albite Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000001513 hot isostatic pressing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- LHENQXAPVKABON-UHFFFAOYSA-N 1-methoxypropan-1-ol Chemical compound CCC(O)OC LHENQXAPVKABON-UHFFFAOYSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- VAYOSLLFUXYJDT-RDTXWAMCSA-N Lysergic acid diethylamide Chemical compound C1=CC(C=2[C@H](N(C)C[C@@H](C=2)C(=O)N(CC)CC)C2)=C3C2=CNC3=C1 VAYOSLLFUXYJDT-RDTXWAMCSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- QUZSUMLPWDHKCJ-UHFFFAOYSA-N bisphenol A dimethacrylate Chemical compound C1=CC(OC(=O)C(=C)C)=CC=C1C(C)(C)C1=CC=C(OC(=O)C(C)=C)C=C1 QUZSUMLPWDHKCJ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910002106 crystalline ceramic Inorganic materials 0.000 description 1
- 239000011222 crystalline ceramic Substances 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000379 polypropylene carbonate Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000002444 silanisation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/20—Methods or devices for soldering, casting, moulding or melting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0006—Production methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/70—Tooth crowns; Making thereof
- A61C5/77—Methods or devices for making crowns
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0022—Blanks or green, unfinished dental restoration parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/087—Artificial resin teeth
Definitions
- the invention relates to a method for manufacturing a composite block for the manufacture of a dental prosthesis and to a method for manufacturing a dental prosthesis.
- the invention also relates to a composite block and a dental prosthesis obtained or likely to have been obtained by such methods.
- Composite blocks made by curing a composite paste that is to say comprising a particulate filler, conventionally made of ceramic material or glass, and a resin, conventionally a mixture of monomers, are known.
- this paste is shaped and then cured. After solidification, the resin forms a binder phase, or "matrix", which binds the particles.
- the composite block obtained is then machined to the shape of the desired prosthesis, conventionally by "computer-aided design and machining” or CAD-CAM (Computer Aided Design - Computer Aided Machining).
- the 3M Paradigm M2100 block from 3M is an example of a composite block manufactured in this way.
- An object of the invention is to provide a novel method for improving the properties of dental prostheses, in particular by increasing their mechanical strength and their chemical stability.
- this object is achieved by means of a method of manufacturing a dental prosthesis, this method comprising the following steps:
- step b) the curing is carried out, at least partially, preferably completely, under a pressure greater than 500 bar.
- a method according to the invention makes it possible to manufacture, in a simple manner, composite blocks having a very high mechanical strength.
- the inventor explains the performance obtained by the fact that the pressure applied in step b) makes it possible to create a stress able to compensate for the shrinkage during the hardening of the resin. This results in a decrease in the number of defects.
- the invention also relates to a solid composite mass, a composite block and a dental prosthesis obtained after a step b), a step c) or a step d), respectively, of a method according to invention or may have been manufactured at the end of such steps.
- cervical prosthesis generally means any piece intended to be placed on the teeth of a patient for the purpose of restoring all or part of it in its natural form.
- the dental prostheses manufactured according to the invention may be, for example, peripheral scapes or crowns that are placed on the stump of a natural tooth, or prostheses generally referred to as "inlay” and “onlay” which are intended to reconstruct a partial alteration of a tooth by filling the cavity resulting from the loss of substance of the tooth by a piece of the same shape made by the prosthetist, or even bridges which are prostheses which simultaneously bear on the remaining portions of at least two teeth possibly compensating for one or more of the missing teeth.
- the term “pressure” refers to the high pressure mentioned above and applied to step b). By default, the "pressure” does not refer to "atmospheric pressure”.
- a dental prosthesis according to the invention may be manufactured by a process comprising the steps a) to d) above:
- a paste is prepared by mixing a particulate filler and a resin capable of forming, by curing, a binder phase.
- the particulate filler preferably represents more than 60%, more than 70%, or even more than 80% and or less than 90% of the mass of the pulp.
- the resin and the particulate filler together account for more than 90%, more than 95%, more than 98%, more than 99%, even substantially 100% of the mass of the pulp.
- the particulate fillers and resins currently used to make dental prostheses, particularly by injection, can be implemented.
- the particulate filler comprises, or even consists of, particles made of a material chosen from a metal oxide in the form of glass-ceramic, glass, or crystalline ceramic such as silica, quartz, alumina or mullite, or by a mixture of such particles.
- the particulate filler comprises, or consists of, particles made of a material chosen from a glass of barium aluminosilicate, a glass containing ytterbium fluoride, albite, a mieatetrafluorosilicate, a lithium disilicate, apatite, quartz, MgAkO-i spinel, mullite and zircon, or by a mixture of such particles.
- Particles of the particulate filler may have undergone a silane treatment intended to increase the wettability of their surface by the resin in the liquid state, and in particular to make this surface more hydrophobic.
- this silanation treatment comprises silanization using an alkoxysilane, a halosilane, preferably 3-methacryloxypyropyltrimethoxysilane.
- the particles are dried, preferably at a temperature between 100X and 200 ° C, typically for several hours.
- the silane treatment may for example be carried out in accordance with the process described in US 5,869,548.
- the nature of the resin is not limiting.
- the resin is chemo-polymerizable, heat-curing, or thermoplastic.
- the resin may in particular be chosen from polymerizable resins, especially those described in US Pat. No. 5,869,548, US Pat. No. 5,843,348 and EP 0 701 808.
- the resin is chosen from the following list:
- a monomer resin that is chemopolymerizable or thermopolymerizable preferably a vinylester or acrylic resin.
- the resin may in particular be chosen from the group formed by 2-hydroxyethyl methacrylate, CAS 868-77-9 (HEMA),
- Tetraethylene glycol dimethacrylate CAS 109-17-1 (TEGDMA), 2 5 2-bis- (4- (2-hydroxy ⁇ 3 ⁇ mayÎhacryloyloxy-propoxy) phenyl) propaKe s CAS 1565-94-2 (BIS GMA), 1, 6-Ws (methacryloxy-2alkyl) xylcarbonylamino) -2,4,4-trimethylhexane urethane, (UDMA) CAS 72869-86-4, ethylene glycol dimethacrylate (EGDMA), diethylene glycol > 1-dimethacrylate (DEGDMA), the
- thermoplastic resin in particular chosen from saturated polyesters, and in particular polyethylene terephthalate (PET) and poly (1,4-butyiene terephthalate), CAS 24968-12-5 (PBT), Polycarbonates Poly (bisphenol A carbonate) , CAS 25037-45-0 (PC), bisphenol A-carbonate, and polyamides.
- dibenzoylperoxide CAS 94-36-0 Methyl Ethyl Ketone Peroxide, CAS 1338-23-4, Di-tert-amyl peroxide, CAS 10508-09-5, Di-tert.- butylperoxide, CAS 110- ⁇ 5-4, or Cumene Hydroperoxide, CAS 80-15-9.
- DMA dimethylaniline
- PEA diemylaniline
- DMPT dimethylparallouline
- the dough may also comprise, in a conventional manner, additives facilitating the control of its curing, for example a catalyst and or an accelerator.
- the total mass content of additives is less than 2% of the mass of the dough.
- the dough is shaped, for example in the form of a "brick", a plate, in particular a disk.
- the maximum thickness of a plate according to the invention is preferably less than 30 mm, preferably less than 20 mm, preferably less than 15 mm, and / or greater than 5 mm, greater than 8 mm.
- step b) the paste prepared in step a) is cured so as to form a solid composite mass.
- the temperature and the holding time at this temperature the chemical nature of the resin, and in particular monomers.
- the resin is conventionally polymerized at ambient pressure.
- the retraction resulting from a polymerization at ambient temperature can conventionally lead to a decrease in the volume occupied by the resin of between 6% and 15% of its initial volume. This retraction leads to appearance of defects generally having a size between 35 and 100 microns.
- the paste is subjected to a high pressure, greater than 500 bar, at least until a portion, and preferably all, of this paste has hardened.
- the high pressure makes it possible to compensate, at least partially, the retraction. This results in a very high homogeneity, an increase in density and a reduction in number and size of defects, or even disappearance of defects.
- the mechanical strength is considerably improved.
- the pressure is preferably greater than 600 bar, preferably greater than 800 bar, greater than 1000 bar, greater than 2000 bar, or even greater than 3000 bar, or even greater than 4000 bar.
- the pressure is less than 5000 bar, preferably less than 4000 bar. In a preferred embodiment, the pressure is between 2000 and 3000 bar.
- the pressure is determined so as to produce a decrease in the volume of the dough greater than or equal to that which, at atmospheric pressure, would result from the shrinkage resulting from the curing of the resin.
- the pressure can be set in the following manner, depending on the shrinkage measured at 20 ° C.
- the pressure is exerted isostatically, or "urriaxial". All known methods of pressurization can be used.
- the pressure must be exerted on the paste while the resin is still at least partly, preferably completely, in the liquid state and until it has at least partially hardened.
- all of the resin is cured, preferably polymerized, to more than 30% by weight, preferably more than 50% by weight, preferably more than 80% by weight, preferably more than 99% by weight. in bulk, preferably substantially 100% by weight, before returning to atmospheric pressure.
- the pressure is kept substantially constant until all of the resin has cured.
- the polymerization can be chemical. Preferably, the polymerization is thermal.
- C preferably below 160 ° C, preferably below 150 ° C.
- the polymerization is preferably carried out at a temperature between 60 and 160 ° C, preferably between 60 and 150 ° C.
- the polymerization is preferably carried out at a temperature of between 150 and 220 ° C, preferably between 150 and 200 ° C, preferably between 160 and 200 ° C.
- the maintenance of the temperature and / or pressure preferably lasts more than 0.25 hours, preferably more than 0.5 and / or less than 2 hours, preferably less than 0.75 hours.
- the application of a high pressure at a temperature greater than 150 ° C., preferably greater than 160 ° C. and preferably less than 220 ° C., preferably less than 200 ° C. advantageously makes it possible to open the double bonds.
- the pressure is kept substantially constant, the pressure variation being preferably less than 20%, preferably less than 10%.
- the pressure is kept substantially constant until the resin is polymerized to more than 30% by weight, preferably more than 50% by weight, preferably more than 80% by weight, preferably more than 80% by weight. from 99% by weight, preferably to substantially 100% by weight.
- a single pressurizing operation without return to ambient pressure is carried out to cure the resin.
- the return to ambient pressure is carried out only after cooling of the cured composite mass, preferably to room temperature.
- the solid composite mass may be subjected to a heat treatment suitable for perfecting the polymerization, for example at a temperature between 150 and 180 ° C.
- the solid composite mass results from a thermopolymerization under pressure of the paste.
- the solid composite mass obtained at the end of step b), according to the invention has a hardness greater than 100 Vickers, preferably greater than 120 Vickers, or even greater than 140 Vickers.
- the solid composite mass obtained at the end of step b) has a Young's elastic modulus greater than 5 GPa, measured according to the ISO 10477 standard and / or a three-point flexural modulus, measured according to the ISO standard. 6,872, greater than 100 MPa, preferably greater than 150 MPa, or even greater than 200 MPa.
- steps b) and c) Preferably, no intermediate step is applied between steps b) and c).
- the solid composite mass is cut to form one or more composite blocks adapted to the machines used for the following steps.
- the solid composite mass may be in the form of a plate, preferably of substantially constant thickness.
- the solid composite mass is in the form of a rod.
- the section of this wand may be square, or rectangular, or circular.
- the solid composite mass has at least one planar face.
- the solid composite mass has a convex shape.
- the solid composite mass has at least two parallel faces.
- the smallest dimension of the solid composite mass is preferably less than 30 mm, preferably less than 20 mm, preferably less than 15 mm, and / or preferably greater than 5 mm.
- the largest dimension, or even each dimension, of the solid composite mass is preferably greater than 15 mm, preferably greater than 50 mm, preferably greater than 100 mm.
- the volume of the solid composite mass is preferably greater than 20000 mm 3 , preferably greater than 50000 mm 3 , preferably greater than 100000 mm 3 .
- the solid composite mass can be cut in a plurality of composite blocks, preferably in at least two composite blocks, into at least three composite blocks, preferably into at least five composite blocks, preferably into at least ten composite blocks. preferably in at least twenty composite blocks.
- all the composite blocks from the same solid composite mass are substantially identical.
- the solid composite mass results from pressure thermopolymerization of the paste prepared in step a), and is then cut into at least three composite blocks.
- a composite block has a convex shape.
- a composite block preferably has at least one planar surface, this surface may for example have streaks resulting from a cutting operation by sawing.
- a composite block does not have the shape of a tooth obtained by molding.
- a composite block is preferably of parallelepipedal shape, preferably of cubic form. It can be cylindrical or prismatic.
- the smallest dimension, or even each dimension of a composite block is greater than 5 mm, preferably greater than 10 mm, preferably greater than 20 mm, and preferably less than 40 mm, preferably less than 30 mm.
- the volume of a composite block is preferably greater than 125 mm ", preferably greater than 1000 mm, preferably greater than 5000 mm J, preferably higher than 10000 mm 3, or and preferably less than 100 000 mm 3, of
- step c) is carried out in such a way that the composite block or blocks obtained can be machined by a CAD-CAM device, in particular by a machining device such as the CELAY system of the company. Mikrona or CEREC 3 from the company SIRONA If necessary, one or more organs can be integrated in a composite block to maintain it by such devices.
- the cutting device makes it possible to form a plurality of composite blocks, for example all of identical shape, for example all of the shape of a cube.
- it makes it possible to form, for example in several operations, composite blocks of identical shape by cutting a plurality of composite masses of various dimensions.
- one of the faces of a composite block is bonded to a metal part, this metal part comprising a rod intended to be fixed in a mandrel of the CAD-CAM device, the rod having a flat part for locating and orienting the block composite,
- the composite block is machined so as to form a dental prosthesis.
- the machining of a dental prosthesis is preferably adapted for the prosthesis to adapt to the tooth or teeth to be treated and or to restore and / or reconstruct a patient
- the ratio of the amount of material removed from the composite block by machining on that of the composite block before machining, to form a dental prosthesis is preferably greater than 10%, preferably greater than 30%, preferably greater than 50%, preferably greater than 70%, and / or preferably less than 90%, preferably less than 80%.
- the composite block according to the invention can be made integral with other parts, for example a metal base.
- steps a), b) and c) can be repeated identically, preferably so as to obtain at the end of step c), composite blocks of calibrated dimensions.
- Steps a), b) and c) can for example be performed in one place, for example in workshops of a factory.
- One or more composite blocks may be packaged, then routed to a place where it is (are) machined) as described in step d). This place may be for example the workshop of a dental technician with a machining device to perform step d).
- the particulate filler is a mixture consisting, for 80% by weight, of a barium aluminosilicate glass powder having a particle size of between 0.1 and 5 microns, the 100% complement being a silica powder. colloidal whose particle size is between 20 and 50 rianometers.
- the resin has the following composition, in percentages by weight
- the paste is obtained by mixing 75% by weight of the particulate filler and 25% by weight of the resin.
- the particulate filler is a mixture consisting, for 70% by weight, of a quartz powder 3 ⁇ 3 ⁇ 4 whose particle size is between 0.1 and 2 microns, the 100% complement being a colloidal silica powder whose size particles is between 5 and 75 nanometers.
- This particulate filler was subjected to a silane treatment identical to that of Example 1.
- the resin has the following composition, in percentages by weight:
- the paste is obtained by mixing 80% by weight of the particulate filler and 20% by weight of the resin.
- the paste thus obtained is then cured under a pressure of 1000 bar, by thermopolymerization at 80 ° C for two hours.
- the particulate filler is a mixture consisting, for 50% by weight, of an albite glass ceramic powder NaAISsOg, the particle size of which is approximately 10 ⁇ m, for 20% by weight, of a glass powder of barium akuninosilicate having a particle size of between 0.4 and 1 ⁇ , the 100% complement being a colloidal silica powder having a particle size of between 50 and 100 nanometers.
- This particulate filler was subjected to silanation treatment identical to that of Example 1.
- the resin has the following composition, in percentages by weight:
- the paste is obtained by mixing 70% by weight of the particulate filler and 30% by weight of the resin.
- the paste thus obtained is then cured under a pressure of 2000 bar, by thermopolymerization at 130 ° C for 0.5 hour.
- the particulate filler is a mixture consisting, for 70 by weight, of a glass powder of barium duminosilicate having a particle size of about 1 ⁇ m, for 10% by weight, of a fluoride powder.
- Ytterbium YDF3 whose particle size is about 3 microns, the 100% complement being a colloidal silica powder whose particle size is between 20 and 50 nanometers.
- This particulate filler was subjected to silanation treatment identical to that of Example 1.
- the resin has the following composition, in percentages by weight:
- the paste is obtained by mixing 60% by weight of the particulate filler and 40% by weight of the resin.
- the paste thus obtained is then cured under a pressure of 3000 bar, by mermopolymensation at 180 ° C. for 1.5 hours.
- the particulate filler is a mixture consisting, for 80% by weight, of an alumina powder whose particle size is between 0.3 and 5 ⁇ m, the 100% complement being a colloidal silica powder whose size particles is between
- This particulate filler was subjected to a silanation treatment identical to that of Example 1.
- the resin is a UDMA resin
- the paste is obtained by mixing 90% by weight of the particulate filler and 10% by weight of the resin.
- the particulate filler is a mixture consisting, for 60% by weight, of a mullite powder whose particle size is between 1 and 10 ⁇ m, for 20% by weight, of a silica powder whose particle size is between 0.1 and 1 ⁇ m, the 100% complement being a colloidal silica powder whose particle size is between 20 and 50 nanometers.
- This particulate filler was subjected to a silane treatment identical to that of Example 1.
- the resin has the following composition, in percentages by weight:
- the paste is obtained by mixing 75% by weight of the particulate filler and 25% by weight of the resin.
- the paste thus obtained is then cured under a pressure of 3000 bar, by thermopolymerization at 60 ° C for 2 hours.
- the particulate filler is a mixture consisting, for 60% by weight, of a powder of vitroceramic particles of fluoro tetra mica silicate, the particle size of which is between 1 and 5 ⁇ m, and for 20% by weight of a powder. of zentonium silicate whose particle size is between 0.1 and 0.5 ⁇ , the 100% complement being a colloidal silica powder.
- This particulate filler was subjected to silanation treatment identical to that of Example 1.
- the resin has the following composition, in percentages by weight:
- ME P 1% The paste is obtained by mixing 70% by weight of the particulate filler and 30% by weight of the resin.
- the paste thus obtained is then cured under a pressure of 2500 bar, by thermopolymerization at 90 ° C for 1 hour.
- the invention provides a method for making composite blocks and mechanically strong prostheses. These composite blocks are also very chemically stable, have improved optical properties and are easier to machine than prior composite blocks.
- the invention is not limited by the chemical nature of the dough or by the shape of the solid mass.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Dental Preparations (AREA)
- Dental Prosthetics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1059519A FR2967568B1 (fr) | 2010-11-19 | 2010-11-19 | Procede de fabrication d'une prothese dentaire |
PCT/IB2011/055178 WO2012066507A1 (fr) | 2010-11-19 | 2011-11-18 | Procede de fabrication d'une prothese dentaire |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2640308A1 true EP2640308A1 (fr) | 2013-09-25 |
Family
ID=44202177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11796820.6A Withdrawn EP2640308A1 (fr) | 2010-11-19 | 2011-11-18 | Procede de fabrication d'une prothese dentaire |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130277873A1 (fr) |
EP (1) | EP2640308A1 (fr) |
JP (1) | JP2014506139A (fr) |
CN (1) | CN103313677B (fr) |
FR (1) | FR2967568B1 (fr) |
WO (1) | WO2012066507A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2692311B1 (fr) * | 2012-08-03 | 2016-06-22 | 3M Innovative Properties Company | Ébauche dentaire comprenant un matériau de zircone préfritté poreux, son procédé de fabrication et article dentaire formé de cette ébauche |
KR101445524B1 (ko) * | 2014-03-20 | 2014-10-02 | 백현영 | 임시 레진계 치관 |
EP3078366A1 (fr) * | 2015-04-10 | 2016-10-12 | Tillotts Pharma Ag | Particules de microgel |
ES2723399T3 (es) * | 2015-09-28 | 2019-08-27 | Coltene/Whaledent Ag | Procedimiento para producir bloques odontológicos de material compuesto |
CN109589270B (zh) * | 2017-09-30 | 2020-10-20 | 辽宁爱尔创生物材料有限公司 | 透光率和颜色渐变的牙科材料的制备方法及其制备的产品 |
DE102017122993B4 (de) * | 2017-10-04 | 2021-03-11 | Kulzer Gmbh | Monochrome Komposit-Fräsblöcke sowie Verfahren zu deren Herstellung |
CN116177884B (zh) * | 2023-03-13 | 2024-06-25 | 爱迪特(秦皇岛)科技股份有限公司 | 一种玻璃陶瓷基体及其制备方法与应用 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH478161A (fr) * | 1966-02-14 | 1969-09-15 | William Gold Refining Company | Composition polymère durcissable |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0791170B2 (ja) * | 1986-09-30 | 1995-10-04 | 株式会社クラレ | 歯科用複合材料 |
JP2517753B2 (ja) * | 1988-12-28 | 1996-07-24 | 株式会社ジーシーデンタルプロダクツ | 人工歯とその製造方法 |
JP2539145B2 (ja) * | 1992-09-08 | 1996-10-02 | テルモ株式会社 | 歯科用コンポジットレジン |
US5507981A (en) * | 1994-05-31 | 1996-04-16 | Tel Ventures, Inc. | Method for molding dental restorations |
ATE228815T1 (de) | 1994-09-19 | 2002-12-15 | Univ Boston | Imprägniertes keramisches netzwerk zur herstellung von dentalformen und restaurationen |
EP0803241B1 (fr) | 1996-04-27 | 2006-06-14 | GC Dental Products Corporation | Matériau dentaire |
US6063830A (en) * | 1996-12-06 | 2000-05-16 | Kabushiki Kaisha Shofu | Dental curable composition and artificial tooth |
JP4290777B2 (ja) * | 1996-12-06 | 2009-07-08 | 株式会社松風 | 歯科用硬化性材料およびそれを用いた人工歯材料 |
JPH10323353A (ja) * | 1997-05-26 | 1998-12-08 | G C:Kk | 歯科用レジン材料及びその作製方法 |
JP2000080013A (ja) * | 1998-09-02 | 2000-03-21 | Gc Corp | 歯科用修復材組成物 |
CN1201714C (zh) * | 2003-07-03 | 2005-05-18 | 四川大学 | 口腔铸钛专业包埋材料及其制备方法和应用 |
US20090305195A1 (en) * | 2006-09-13 | 2009-12-10 | Jones Todd D | Preformed malleable solid crown |
US9295533B2 (en) * | 2006-10-26 | 2016-03-29 | Itzhak Shoher | Material forming a dental coping in the prepartion of a dental restoration |
FR2935897B1 (fr) * | 2008-09-12 | 2010-12-03 | Michael Sadoun | Bloc ceramique composite. |
RU2472708C2 (ru) * | 2008-10-15 | 2013-01-20 | Зм Инновейтив Пропертиз Компани | Наполнители и композитные материалы с наночастицами диоксида циркония и кремнезема |
-
2010
- 2010-11-19 FR FR1059519A patent/FR2967568B1/fr active Active
-
2011
- 2011-11-18 CN CN201180065421.7A patent/CN103313677B/zh active Active
- 2011-11-18 EP EP11796820.6A patent/EP2640308A1/fr not_active Withdrawn
- 2011-11-18 JP JP2013539388A patent/JP2014506139A/ja active Pending
- 2011-11-18 WO PCT/IB2011/055178 patent/WO2012066507A1/fr active Application Filing
- 2011-11-18 US US13/988,403 patent/US20130277873A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH478161A (fr) * | 1966-02-14 | 1969-09-15 | William Gold Refining Company | Composition polymère durcissable |
Also Published As
Publication number | Publication date |
---|---|
WO2012066507A1 (fr) | 2012-05-24 |
JP2014506139A (ja) | 2014-03-13 |
FR2967568B1 (fr) | 2013-11-08 |
CN103313677A (zh) | 2013-09-18 |
FR2967568A1 (fr) | 2012-05-25 |
CN103313677B (zh) | 2016-07-13 |
US20130277873A1 (en) | 2013-10-24 |
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