CN109431817A - A kind of new type resin tooth and preparation method thereof - Google Patents
A kind of new type resin tooth and preparation method thereof Download PDFInfo
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- CN109431817A CN109431817A CN201811565839.4A CN201811565839A CN109431817A CN 109431817 A CN109431817 A CN 109431817A CN 201811565839 A CN201811565839 A CN 201811565839A CN 109431817 A CN109431817 A CN 109431817A
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- resin tooth
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- type resin
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- 239000011347 resin Substances 0.000 title claims abstract description 42
- 229920005989 resin Polymers 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000003365 glass fiber Substances 0.000 claims abstract description 45
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims abstract description 17
- 239000000178 monomer Substances 0.000 claims abstract description 14
- 239000000049 pigment Substances 0.000 claims abstract description 14
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 10
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 10
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 10
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 claims description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- KAHVZNKZQFSBFW-UHFFFAOYSA-N n-methyl-n-trimethylsilylmethanamine Chemical compound CN(C)[Si](C)(C)C KAHVZNKZQFSBFW-UHFFFAOYSA-N 0.000 claims description 5
- -1 methyl methacrylate triethylene glycol ester Chemical class 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- CZIRZNRQHFVCDZ-UHFFFAOYSA-L titan yellow Chemical group [Na+].[Na+].C1=C(C)C(S([O-])(=O)=O)=C2SC(C3=CC=C(C=C3)/N=N/NC3=CC=C(C=C3)C3=NC4=CC=C(C(=C4S3)S([O-])(=O)=O)C)=NC2=C1 CZIRZNRQHFVCDZ-UHFFFAOYSA-L 0.000 claims description 4
- 229920001483 poly(ethyl methacrylate) polymer Polymers 0.000 claims description 3
- WTRKACGPQVUJSV-UHFFFAOYSA-N CC(C(O)=O)=C.CC(C(O)=O)=C.N=C=O.N=C=O Chemical compound CC(C(O)=O)=C.CC(C(O)=O)=C.N=C=O.N=C=O WTRKACGPQVUJSV-UHFFFAOYSA-N 0.000 claims description 2
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims 2
- VKEQBMCRQDSRET-UHFFFAOYSA-N Methylone Chemical compound CNC(C)C(=O)C1=CC=C2OCOC2=C1 VKEQBMCRQDSRET-UHFFFAOYSA-N 0.000 claims 1
- VYVYBZOPWIQULV-UHFFFAOYSA-N N=C=O.N=C=O.CC(=C)C(O)=O Chemical compound N=C=O.N=C=O.CC(=C)C(O)=O VYVYBZOPWIQULV-UHFFFAOYSA-N 0.000 claims 1
- 150000004702 methyl esters Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 210000000988 bone and bone Anatomy 0.000 abstract description 3
- 235000021059 hard food Nutrition 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical group COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000001458 anti-acid effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000000465 moulding Methods 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
- YLIZNYFVRHGNKF-UHFFFAOYSA-N 2-[2-(2-hydroxyethoxy)ethoxy]ethanol;methyl 2-methylprop-2-enoate Chemical class COC(=O)C(C)=C.OCCOCCOCCO YLIZNYFVRHGNKF-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OSNIIMCBVLBNGS-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-2-(dimethylamino)propan-1-one Chemical compound CN(C)C(C)C(=O)C1=CC=C2OCOC2=C1 OSNIIMCBVLBNGS-UHFFFAOYSA-N 0.000 description 1
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 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
- A61K6/80—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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/15—Compositions characterised by their physical properties
-
- 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
- A61K6/78—Pigments
-
- 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
- A61K6/831—Preparations for artificial teeth, for filling teeth or for capping teeth comprising non-metallic elements or compounds thereof, e.g. carbon
- A61K6/836—Glass
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses a kind of new type resin tooth and preparation method thereof, which is made of the surface treated short glass fiber of 1-10 parts by weight, 50-60 parts by weight propylene acids polymers, 20-40 parts by weight propylene acids monomer, 0.001-0.1 parts by weight pigment.It is compared resin tooth endurance life, creep resistance, shock resistance, wear-resisting property made of current polymethyl methacrylate materials and significantly improves, and makes patient that the hard food such as nut, bone can be chewed.
Description
Technical field
The present invention relates to oxygen absorption machine fields, and in particular to a kind of new type resin tooth and preparation method thereof.
Background technique
Resin tooth product currently on the market is mainly by polymethyl methacrylate or its modified copolymer through injection molding or warm
Compression moulding.Polymethyl methacrylate, that is, PMMA, is commonly called as organic glass, be so far synthesize transparent material in quality it is optimal
Different kind.But when its raw material as resin tooth, patient can constantly wear resin tooth in chewing；And due to it
It is high molecular material, the hard food such as nut, bone can not be chewed after causing patient that resin tooth is installed, influence making for patient
With experience.
Summary of the invention
In order to solve the above-mentioned technical problem the present invention provides a kind of new type resin tooth and preparation method thereof.
The present invention is achieved through the following technical solutions:
A kind of new type resin tooth, by the surface treated short glass fiber of 1-10 parts by weight, 50-60 parts by weight of acrylic acid Type of Collective
Object, 20-40 parts by weight propylene acids monomer, 0.001-0.1 parts by weight pigment composition.
The short glass fiber is by one of A glass fibre, E glass fibre, C glass fibre, S glass fibre or a variety of
It is composed.
The acrylic polymer is polymethyl methacrylate, polyethyl methacrylate, polymethyl methacrylate
One of diisocyanate or multiple combinations form.
The acrylic monomer is methyl methacrylate, ethyl methacrylate, butyl methacrylate, dimethyl
One of acrylic acid diisocyanate or multiple combinations form.
The pigment is made of iron oxide red, titan yellow.
A kind of production method of new type resin tooth, comprising the following steps:
A, short glass fiber is surface-treated；
B, by the surface treated short glass fiber of 1-10 parts by weight, 20-40 parts by weight propylene acids monomer, 0.001-0.1 weight
Amount part pigment is mixed；
C, at a temperature of 5 DEG C -25 DEG C, 50-60 parts by weight propylene acids polymers are mixed into mixture made from step B and are mixed
It closes uniform；
D, resin tooth mold cavity is inserted, makes mold lock locking keep 0.1Mpa-0.6 MPa pressure in mold cavity,
The mold latched is put into 60 DEG C of -100 DEG C of water-baths and is heated 20-40 minutes.
The method that short glass fiber is surface-treated are as follows:
Short glass fiber is added by double methyl methacrylate triethylene glycol ester ,-two ring of 1,7,7- trimethyl at normal temperature
[2.2.1] heptane -2,3- diketone, N, TMSDMA N dimethylamine yl benzoic acid ethyl ester composition mixture in be sufficiently stirred 1-3 hours；
After filtering on a glass by short glass fibre booth, the thin layer that thickness is less than or equal to 3mm is formed, it is visible with 300-400nm
Light irradiates 5 minutes.
Compared with prior art, the present invention at least having the following advantages and benefits:
1, new type resin tooth of the invention coats short glass fiber using acrylic resin, forms fine and close core-shell structure, more existing
The resin tooth endurance life made of polymethyl methacrylate materials, creep resistance, shock resistance, wear-resisting property are aobvious
It writes and improves, make patient that the hard food such as nut, bone can be chewed.
2, resin tooth of the present invention has good anti acid alkali performance energy using acrylic resin cladding short glass fiber, can be effective
It solves existing resin tooth to be easy to cause base surface to form honeycomb since edible for patients is acid or base-forming food, to grow
The problem of endophytic bacteria is bred, and oral health is influenced.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment, the present invention is made
Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this
The restriction of invention.
Embodiment 1
A kind of new type resin tooth, by the surface treated short glass fiber of 1-10 parts by weight, 50-60 parts by weight of acrylic acid Type of Collective
Object, 20-40 parts by weight propylene acids monomer, 0.001-0.1 parts by weight pigment composition.
Wherein, short glass fiber can by one of A glass fibre, E glass fibre, C glass fibre, S glass fibre or
Multiple combinations form.Acrylic polymer can be by polymethyl methacrylate, polyethyl methacrylate, poly dimethyl propylene
One of sour diisocyanate or multiple combinations form.Acrylic monomer can be by methyl methacrylate, methacrylic acid
One of ethyl ester, butyl methacrylate, dimethacrylate diisocyanate or multiple combinations form.Pigment is by iron oxide
Red, titan yellow group is combined into.
Embodiment 2
1 principle based on the above embodiment, the present embodiment disclose a kind of specific embodiment of new type resin tooth.
A kind of new type resin tooth, by the surface treated short glass fiber of 8 parts by weight, 50 parts by weight propylene acid polymers,
30 parts by weight propylene acids monomers, 0.001 parts by weight pigment composition.
Short glass fiber uses S glass fibre, and acrylate copolymer uses polymethyl methacrylate, acrylic monomer
It is formed using methyl methacrylate；Pigment uses the composition of iron oxide red, titan yellow.
Embodiment 3
New type resin tooth based on the above embodiment, the present embodiment disclose its specific production method, method includes the following steps:
A, short glass fiber is surface-treated:
Short glass fiber is added by double methyl methacrylate triethylene glycol ester ,-two ring of 1,7,7- trimethyl at normal temperature
[2.2.1] heptane -2,3- diketone, N, TMSDMA N dimethylamine yl benzoic acid ethyl ester composition mixture in be sufficiently stirred 1-3 hours；
After filtering on a glass by short glass fibre booth, the thin layer that thickness is less than or equal to 3mm is formed, it is visible with 300-400nm
Light irradiates 5 minutes；
B, by the surface treated short glass fiber of 1-10 parts by weight, 20-40 parts by weight propylene acids monomer, 0.001-0.1 weight
Amount part pigment is mixed；
C, at a temperature of 5 DEG C -25 DEG C, 50-60 parts by weight propylene acids polymers are mixed into mixture made from step B and are mixed
It closes uniform；
D, resin tooth mold cavity is inserted, makes mold lock locking keep 0.1Mpa-0.6 MPa pressure in mold cavity,
The mold latched is put into 60 DEG C of -100 DEG C of water-baths and is heated 20-40 minutes.
Embodiment 4
Based on the principle of embodiment 3, the present embodiment discloses a specific implementation method.
A kind of production method of new type resin tooth, comprising the following steps:
A, 50 parts by weight short glass fibers are added by 100 parts by weight double methyl methacrylate triethylene glycol esters, 1 weight under room temperature
- two ring [2.2.1] heptane -2,3- diketone of part 1,7,7- trimethyl, 1 parts by weight N are measured, TMSDMA N dimethylamine yl benzoic acid ethyl ester composition
It is sufficiently stirred in mixture 3 hours；,
Filtering on a glass by short glass fibre booth forms the thin layer that thickness is no more than 3mm, with 300-400nm radiation of visible light
5 minutes spare；
B, by the surface treated short glass fiber of 1-10 parts by weight, 20-40 parts by weight propylene acids monomer, 0.001-0.1 weight
Amount part pigment is mixed on batch mixer；
C, at a temperature of 5 DEG C -25 DEG C, 50-60 parts by weight propylene acids polymers are mixed into mixture made from step B and are mixed
It closes uniform；
D, resin tooth mold cavity is inserted, makes mold lock locking keep 0.1Mpa pressure in mold cavity, will latch
Mold be put into 60 DEG C of -100 DEG C of water-baths and heat 20 minutes.
Reduced using acrylic resin cladding short glass fiber as reinforcing material using resin tooth made from this method
The molding shrinkage of resin tooth in process of production, further improves resin tooth product qualification rate.It is made and is set of this method
Endurance life, creep resistance, wear-resisting property, shock resistance, the anti acid alkali performance energy of resin tooth product can be improved in rouge tooth,
Meanwhile it can be reduced the molding shrinkage of resin tooth in process of production.The raw material of this method is easy to get, simple production process, therefore
It is compared compared with product, has saved production cost；Scrap build expense of the whole process without large-scale equipment or valuableness, production letter
It is single convenient for production, therefore be applicable to be mass produced.
Embodiment 5
Based on the principle of embodiment 3, the present embodiment discloses a specific implementation method.
A kind of production method of new type resin tooth, comprising the following steps:
A, 50 parts by weight short glass fibers are added by 80 parts by weight double methyl methacrylate triethylene glycol esters, 1 weight under room temperature
- two ring [2.2.1] heptane -2,3- diketone of part 1,7,7- trimethyl, 1 parts by weight N are measured, TMSDMA N dimethylamine yl benzoic acid ethyl ester composition
It is sufficiently stirred in mixture 3 hours；
Filtering on a glass by short glass fibre booth forms the thin layer that thickness is no more than 3mm, with 300-400nm radiation of visible light
5 minutes spare；
B, by the surface treated short glass fiber of 1-10 parts by weight, 20-40 parts by weight propylene acids monomer, 0.001-0.1 weight
Amount part pigment is mixed on batch mixer；
C, at a temperature of 5 DEG C, 50-60 parts by weight propylene acids polymers is mixed into mixture made from step B and are mixed
It is even；
D, resin tooth mold cavity is inserted, makes mold lock locking keep 0.6Mpa pressure in mold cavity, will latch
Mold be put into 100 DEG C of water-baths and heat 20 minutes.
The endurance life, creep resistance, wearability of resin tooth product can be improved using this method production resin tooth
Energy, shock resistance, anti acid alkali performance energy, meanwhile, it can be reduced the molding shrinkage of resin tooth in process of production.The original of this method
Material is easy to get, simple production process, therefore compares compared with product, has saved production cost；Whole process without large-scale equipment or
Expensive scrap build expense, production is simple convenient for production, therefore is applicable to be mass produced.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (7)
1. a kind of new type resin tooth, which is characterized in that by the surface treated short glass fiber of 1-10 parts by weight, 50-60 weight
Part acrylic polymer, 20-40 parts by weight propylene acids monomer, 0.001-0.1 parts by weight pigment composition.
2. a kind of new type resin tooth according to claim 1, which is characterized in that the short glass fiber by A glass fibre,
One of E glass fibre, C glass fibre, S glass fibre or multiple combinations form.
3. a kind of new type resin tooth according to claim 1, which is characterized in that the acrylic polymer is poly- methyl
One of methyl acrylate, polyethyl methacrylate, polymethyl methacrylate diisocyanate or multiple combinations form.
4. a kind of new type resin tooth according to claim 1, which is characterized in that the acrylic monomer is metering system
One of sour methyl esters, ethyl methacrylate, butyl methacrylate, dimethacrylate diisocyanate or multiple combinations
It forms.
5. a kind of new type resin tooth according to claim 1, which is characterized in that the pigment is by iron oxide red, titan yellow group
At.
6. a kind of production method of new type resin tooth, it is characterised in that: the following steps are included:
A, short glass fiber is surface-treated；
B, by the surface treated short glass fiber of 1-10 parts by weight, 20-40 parts by weight propylene acids monomer, 0.001-0.1 weight
Amount part pigment is mixed；
C, at a temperature of 5 DEG C -25 DEG C, 50-60 parts by weight propylene acids polymers are mixed into mixture made from step B and are mixed
It closes uniform；
D, resin tooth mold cavity is inserted, makes mold lock locking keep 0.1Mpa-0.6 MPa pressure in mold cavity,
The mold latched is put into 60 DEG C of -100 DEG C of water-baths and is heated 20-40 minutes.
7. a kind of production method of new type resin tooth according to claim 6, which is characterized in that described to short glass fiber
The method being surface-treated are as follows:
Short glass fiber is added by double methyl methacrylate triethylene glycol ester ,-two ring of 1,7,7- trimethyl at normal temperature
[2.2.1] heptane -2,3- diketone, N, TMSDMA N dimethylamine yl benzoic acid ethyl ester composition mixture in be sufficiently stirred 1-3 hours；
After filtering on a glass by short glass fibre booth, the thin layer that thickness is less than or equal to 3mm is formed, it is visible with 300-400nm
Light irradiates 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565839.4A CN109431817A (en) | 2018-12-20 | 2018-12-20 | A kind of new type resin tooth and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565839.4A CN109431817A (en) | 2018-12-20 | 2018-12-20 | A kind of new type resin tooth and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109431817A true CN109431817A (en) | 2019-03-08 |
Family
ID=65558970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811565839.4A Pending CN109431817A (en) | 2018-12-20 | 2018-12-20 | A kind of new type resin tooth and preparation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN109431817A (en) |
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