CN108720948A - Artificial tooth briquet material and preparation method thereof - Google Patents
Artificial tooth briquet material and preparation method thereof Download PDFInfo
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- CN108720948A CN108720948A CN201711403535.3A CN201711403535A CN108720948A CN 108720948 A CN108720948 A CN 108720948A CN 201711403535 A CN201711403535 A CN 201711403535A CN 108720948 A CN108720948 A CN 108720948A
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- 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
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- 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
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- 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
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/003—Apparatus for curing resins by radiation
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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
- A61K6/15—Compositions characterised by their physical properties
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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
- A61K6/70—Preparations for dentistry comprising inorganic additives
- A61K6/78—Pigments
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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
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
- A61K6/818—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
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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
- A61K6/80—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
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- Ceramic Engineering (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Dental Preparations (AREA)
- Dental Prosthetics (AREA)
Abstract
The present invention relates to the artificial tooth briquet materials and preparation method thereof that a kind of artificial tooth briquet and gum briquet are integrally formed,In more detail,The artificial tooth briquet material and preparation method thereof be processed into can be mounted on intraoral shape when can shorten processing technology and required time,Has excellent stability biologically by not constituted by the material of cytotoxicity,It is by with 87.0~98.0 weight % of propylene liguid acid system macromolecule,0.5~3.0 weight % of Zirconium oxide powder (zirconia powder),0.5~3.0 weight % of elastomer (elastomer),Pink (pigment pink) 0.5~3.5 weight % of pigment,The gum briquet of 0.5~3.5 weight % composition of paratonere (pigment red) and with 96.0~99.4 weight % of propylene liguid acid system macromolecule,0.5~3.0 weight % of Zirconium oxide powder (zirconia powder),The artificial tooth briquet of 0.1~1.0 weight % compositions of pigment brown (pigment brown) is integrally formed.
Description
Technical field
The present invention relates to a kind of artificial tooth briquets (b lock) and the integrally formed artificial tooth briquet material of gum briquet (b lock)
Material and preparation method thereof, in more detail, the artificial tooth briquet material and preparation method thereof be processed into can be mounted on it is intraoral
Processing technology and required time can be shortened when shape, have biologically excellent by not constituted by the material of cytotoxicity
Different stability.
Background technology
In general, the tooth number of adult includes upper row's tooth and a total of 32 including lower row's tooth, but with age
And nature tooth is lost naturally, for this purpose, being lost artificially to repair using being installed in oral cavity as the artificial tooth of artificial implantation
The apperance and function of the tooth of mistake.
The type of artificial tooth can classify as follows, it is more than one nature tooth defect when use fixed partial denture,
The full mouth that active type partial denture, the natural tooth used when more than two nature tooth defects uses when all falling is false
Tooth.
Prior art related with the artificial tooth can illustrate KR published patent the 10-2012-0072792nd " dental mold,
Utilize the artificial tooth production method and its artificial tooth of the mold ".
Above-mentioned technology includes the following steps：The integrally formed tooth mould of multiple teeth patternings is selected after tooth is classified
Tool；Joint portion use is distinguished into after dental mold is classified according to the structure of tooth, ivory uses, enamel is used；To engagement
It is good and have and allow the tooth joint portion formable layer of contact gum after the soft resin of tooth color that caking property with mold is injected by portion；?
After tooth joint portion layer is inserted into ivory's mold, it is more transparent and have than tooth joint portion layer that its color sensation is injected in the above
The resin of high rigidity and allow tooth ivory's formable layer；The ivory layer joined integrally with tooth joint portion layer is inserted into enamel
After mold frame (frame), its color sensation tree more transparent and having high rigidity than tooth ivory's layer is injected in the above
Fat and allow tooth enamel formable layer.
Although tooth can be integrally formed using foregoing technology mould frame, main material using resin and
Very weak in wearability, thermal conductivity and impact strength, lower surface strength is also easy to cause surface and abrasion occurs or scrape
It scratches.
Moreover, with tooth joint portion layer integrally in conjunction with ivory's layer be inserted into mold frame and when increasing making
Between, the longer words mold frame of usage time and the ivory's layer for being inserted into the mold frame are easily separated.
Look-ahead technique document Prior Art
【Patent document】
KR published patent the 10-2012-0072792nd (2012.07.04.)
KR published patent the 10-2015-0005275th (2015.01.14.)
Ebrean Registered Patent the 10-1585971st (2016.01.11.)
Invention content
【The technical task of solution】
Present invention seek to address that foregoing problems, the object of the present invention is to provide a kind of artificial tooth briquet material and its making sides
Method shortens the time by the making integrated with gum briquet of artificial tooth briquet and improves production efficiency with technique, justice will not occur
Tooth shakes or the phenomenon that falls, and is able to give expression to and matches in excellence or beauty in the color of natural tooth, also by the way that irradiating electron beam is cured
Have the advantages that appropriate intensity, volume stability and impact resistance are good.
【Solve the technical solution of project】
The technical solution that the present invention solves the above subject is characterized in that, with propylene liguid acid system macromolecule 87.0~98.0
Weight %, 0.5~3.0 weight % of Zirconium oxide powder (zirconia powder), 0.5~3.0 weight of elastomer (elastomer)
Measure %, pink (pigment pink) 0.5~3.5 weight % of pigment, 0.5~3.5 weight % groups of paratonere (pigment red)
At gum briquet and with 96.0~99.4 weight % of propylene liguid acid system macromolecule, Zirconium oxide powder (zirconia
Powder) 0.5~3.0 weight %, 0.1~1.0 weight % composition of pigment brown (pigment brown) artificial tooth briquet integrally
It is formed.
Moreover, above-mentioned acrylic acid series macromolecule passes through bisphenol-A (bi spheno l-A) and hydroxyethyl methacrylate
The synthetic reaction of (hydrox yethyl methacrylate, HEMA) is formed, and above-mentioned synthetic reaction includes for promoting reaction
Catalyst, the blending ratio of above-mentioned bisphenol-A and hydroxyethyl methacrylate is with mol ratios for 1:1.0~5.0.
Moreover, above-mentioned catalyst is from triphenyl phosphate (triphenyl phosphate), triethylamine
Choosing in (triethylamin e), calcium carbonate (calcium carbonate), potassium hydroxide (potassium hydroxide)
Some the above substance selected.
On the other hand, compound artificial tooth briquet material fabrication process includes the following steps：A) liquid is stirred in stirring container
87.0~98.0 weight % of acrylic acid series macromolecule, 0.5~3.0 weight % of Zirconium oxide powder (zirconia powder), elasticity
Pink (pigment pink) 0.5~3.5 weight % of 0.5~3.0 weight % of body (elastomer), pigment, paratonere
(pigment red) 0.5~3.5 weight % and be ready for the stirring thing for making gum briquet；B) the stirring of above-mentioned steps a
Object injects briquet mold, and the stirring thing irradiation to injecting above-mentioned briquet mold forms cured tooth as the electron beam of ionization energy
Gum briquet；C) in 96.0~99.4 weight % of stirring container stirring propylene liguid acid system macromolecule, Zirconium oxide powder (zirconia
Powder) 0.5~3.0 weight %, 0.1~1.0 weight % of pigment brown (pigment brown) and be ready for for making artificial tooth base
The stirring thing of block；D) the briquet mold for foring gum briquet of the stirring thing injection step b of above-mentioned steps c, in injection
The stirring thing irradiation for stating briquet mold is formed and gum briquet integrally cured artificial tooth briquet as the electron beam of ionization energy；
E) it is processed after the artificial tooth briquet of above-mentioned steps d being taken out from briquet mold to be suitable for CAD/CAM system.
Moreover, be 1kGy~3,000kGy when irradiating the electron beam as ionization energy in above-mentioned steps b and step d, it is above-mentioned
Stirring in step a and step c is carried out 1~12 hour with the rotary speed of 400~600rpm.
【Advantageous effect】
The artificial tooth briquet material of the present invention made by the above method is by feat of artificial tooth briquet and the gum base for constituting artificial tooth
The integration of block, which makes, to be shortened time and technique and improves production efficiency, there is a phenomenon where artificial tooth shaking or will not be fallen, be passed through
Irradiating electron beam is cured and is able to give expression to and matches in excellence or beauty in the color of natural tooth, also has that intensity is appropriate, volume stability
And the advantage that impact resistance is good.
Description of the drawings
Fig. 1 is the artwork of the production method for the artificial tooth briquet material for showing a preferred embodiment of the invention.
Fig. 2 is each contained by gum briquet and the artificial tooth briquet for the artificial tooth briquet material for showing a preferred embodiment of the invention
The photo of a pigment (pigment).
Fig. 3 is the gear blank block stirring thing and tooth for respectively showing to constitute the artificial tooth briquet material of a preferred embodiment of the invention
The photo of gum briquet stirring thing.
Fig. 4 be show be after the artificial tooth briquet material of a preferred embodiment of the invention is cured by the influence of electron beam
The photo for the state processed suitable for CAD/CAM system.
Fig. 5 is the photograph with the surface of the artificial tooth briquet material of micro- sem observation a preferred embodiment of the invention and section
Piece.
Fig. 6 is the physics of the gum briquet and artificial tooth briquet for the artificial tooth briquet material for showing a preferred embodiment of the invention
The figure of characteristic test result.
Fig. 7 is the experimentation of the Cytotoxicity evaluation for the artificial tooth briquet material for showing a preferred embodiment of the invention
Photo.
Fig. 8 is the experimental result of the Cytotoxicity evaluation for the artificial tooth briquet material for showing a preferred embodiment of the invention
Photo.
Fig. 9 is to show to form tooth after the artificial tooth briquet material of a preferred embodiment of the invention is suitable for CAD/CAM system
The photo of odontoid.
Specific implementation mode
The artificial tooth briquet material of the present invention is by with 87.0~98.0 weight % of propylene liguid acid system macromolecule, Zirconium oxide powder
(zir conia powder) 0.5~3.0 weight %, 0.5~3.0 weight % of elastomer (elastomer), pigment are pink
The gum briquet of (pigment p ink) 0.5~3.5 weight %, 0.5~3.5 weight % compositions of paratonere (pigment red)
With with 96.0~99.4 weight % of propylene liguid acid system macromolecule, Zirconium oxide powder (zirconia powder) 0.5~3.0 weight
The artificial tooth briquet that amount %, 0.1~1.0 weight % of pigment brown (pigment brown) are formed is integrally formed.
In the substance for stating gum briquet in composition, it is solid that acrylic acid series macromolecule is that one kind can carry out such as UV easily
Change the height of the manufacture craft of three-dimensional structures molding such as (ultra violet curing), heat cure (thermal curing)
Molecule can be obviously promoted reactivity by the high molecular vinyl of acrylic acid series (vinyl group) is present in.
Above-mentioned acrylic acid series macromolecule can be by bisphenol-A (bi spheno l-A) and hydroxyethyl methacrylate
The synthetic reaction of (hydroxyet hyl methacrylate, HEMA) is formed, and can also include for above-mentioned synthetic reaction
Catalyst.
Above-mentioned catalyst can be from triphenyl phosphate (triphenyl phosphate), triethylamine
(triethylamine), selection in calcium carbonate (calcium carbonate), potassium hydroxide (potassium hydroxide)
Some above substance used after each ingredient can then being mixed with same ratio if it is 2 or more substances.
In another embodiment of the present invention, as the above-mentioned high molecular substance of acrylic acid series of composition, bisphenol-A and first
Base hydroxy-ethyl acrylate can be with 1:1.0~5.0 mol ratios mixing.
For above-mentioned bisphenol-A, hydroxyethyl methacrylate is less than 1mo l or when more than 5mo l, can because side reaction and
So that other high molecular synthesis other than acrylic acid series macromolecule increase and reduce the high molecular yield of acrylic acid series.
And the reaction time for the bisphenol-A and hydroxyethyl methacrylate for being preferably based on above-mentioned catalyst is 23 hours
By 25 hours.Yield is reduced since the reaction time is insufficient to if less than 23 hours being reacted, if being more than 25 hours
Economic benefit can decline.
It is compared with the total weight % for the composition for constituting gum briquet, above-mentioned acrylic acid series macromolecule is less than 87.0 weight %
If intensity enhancing and lead to nature tooth wear, the strength reduction more than 98.0 weight % and cause to wear away or scrape to scratch etc. and ask
Topic.
As another substance for constituting above-mentioned gum briquet, the granularity of Zirconium oxide powder (zirconia powder) is big
Small is 5 μm hereinafter, it is monoclinic system or tetragonal system zirconium oxide, is to improve the high molecular wearability of acrylic acid series, heat
The shortcomings that conductance, radioactive ray developability and impact strength etc. and add, Zirconium oxide powder used in the present invention due to
Corrosion does not occur without causing any inflammation or allergic phenomena, and has advantage in terms of wearability.
Preferably, it is compared with the total weight % for the composition for constituting gum briquet, above-mentioned Zirconium oxide powder is 0.5 weight %
To 3.0 weight %.
At this point, above-mentioned Zirconium oxide powder is less than wearability, thermal conductivity, radioactive ray developability and impact if 0.5 weight %
Intensity is unable to reach desired value, and more than 3.0 weight %, intensity can enhance and cause the abrasion of nature tooth.
In yet another embodiment of the present invention, quartz powder (SiO-2), the dioxy for being equivalent to ceramic powder can also be used
Change titanium powder (TiO2) and alumina powder (Al2O3) substitutes the Zirconium oxide powder for constituting above-mentioned gum briquet.
As another substance for constituting above-mentioned gum briquet, elastomer (e l astomer) is that one kind having application
The polymer substance of the property of original position is returned when being elongated when external force pulls without applying external force, the reason of when drawing is elongated is
Whole elongated due to sliding between linear macromolecule, it is the molecule by deformation to eliminate the reason of returning original position after strength
Movement.
Therefore, the certain elastic force for the nature gum that can be achieved with after the elastomer for having property as previously described matching in excellence or beauty is contained
Form.
Preferably, it is compared with the total weight % for the composition for constituting gum briquet, above-mentioned elastomer is that 0.5 weight % is arrived
3.0 weight %.Less than 0.5 weight %, physical property is hardened and wound can occur in oral cavity in laboratory rodent chow above-mentioned elastomer
Or influence and be formed in neighbouring natural tooth, make intraoral chewing since physical property dies down more than 3.0 weight %
Ability reduces.
As another substance for constituting above-mentioned gum briquet, pigment (pigment) is the colorant for expressing color, is
It gives expression to the color for the nature gum that matches in excellence or beauty and adds.The present invention is not particularly limited the type of above-mentioned pigment, can use
General colorant, colorant etc..
The present invention contains pigment pink (pigment pink) and paratonere to assign the color for the nature gum that matches in excellence or beauty
(pigment red).It is pink with the phase that can give expression to the photo as shown in Fig. 3 and Fig. 4 after paratonere to contain above-mentioned pigment
It is similar to the color of practical gingiva color.
Preferably, it is compared with the total weight % for the composition for constituting gum briquet, above-mentioned pigment is pink to be distinguished with paratonere
It is 0.5 weight % to 3.5 weight %.It is detached from the more difficult color for giving expression to the nature gum that the matches in excellence or beauty when range of aforementioned weight %.
In the substance for constituting above-mentioned artificial tooth briquet, acrylic acid series macromolecule is one kind can make three-dimensional structure easily
The macromolecule of molding is compared with the total weight % for the composition for constituting artificial tooth briquet, is 96.0 weight % to 99.4 weights
Measure %.
It is compared with the total weight % for the composition for constituting artificial tooth briquet, above-mentioned acrylic acid series macromolecule is less than 96.0 weight %
If intensity enhancing and lead to the abrasion of nature tooth, the weakened more than 99.4 weight % and wear away or scrape and scratch it
The fragile problem of class.
In yet another embodiment of the present invention, above-mentioned acrylic acid series macromolecule can be by bisphenol-A (b i spheno l-
A) and the synthetic reaction of hydroxyethyl methacrylate (hydroxyethyl methacrylate, HEMA) is formed, can be in order to upper
It states synthetic reaction and includes catalyst.
Above-mentioned catalyst be from triphenyl phosphate (triphenyl phosphate), triethylamine (triethylamine),
Some the above object selected in calcium carbonate (calcium carbonate), potassium hydroxide (potassium hydroxide)
Matter is used if it is 2 or more substances after each ingredient can then being mixed with same ratio.
Constituting the high molecular bisphenol-A of above-mentioned acrylic acid series can be with 1 with hydroxyethyl methacrylate:1.0~5.0 mo l
Than mixing, for bisphenol-A, when hydroxyethyl methacrylate is less than 1mo l or is more than 5mo l, it can make third because of side reaction
Other high molecular synthesis other than olefin(e) acid system macromolecule increase and reduce the high molecular yield of acrylic acid series.
The reaction time of the bisphenol-A and hydroxyethyl methacrylate that are preferably based on above-mentioned catalyst is 23 hours to 25
Hour.Yield is reduced since the reaction time is insufficient to if less than 23 hours being reacted, can be sent out more than 25 hours
It gives birth to non-essential extra reaction and economic benefit is declined.
As another substance for constituting above-mentioned artificial tooth briquet, Zirconium oxide powder (zirconi apowder) is to change
The shortcomings that kind high molecular wearability of acrylic acid series, thermal conductivity, radioactive ray developability and impact strength etc. and add, this
Zirconium oxide powder used in invention has since corrosion does not occur without causing any inflammation or allergic phenomena to human body
Excellent aesthetic conceptions are achieved close to the form of nature tooth, and have advantage in terms of wearability.
Preferably, it is compared with the total weight % for the composition for constituting artificial tooth briquet, above-mentioned Zirconium oxide powder is with 0.5 weight %
To 3.0 weight % additions.At this point, less than wearability, thermal conductivity, radioactive ray developability and impact strength if 0.5 weight % without
Method reaches desired value, and more than 3.0 weight %, intensity can enhance and cause the abrasion of nature tooth.
In yet another embodiment of the present invention, quartz powder (SiO-2), the dioxy for being equivalent to ceramic powder can also be used
Change titanium powder (TiO2) and alumina powder (Al2O3) substitutes the Zirconium oxide powder for constituting artificial tooth briquet.
As another substance for constituting above-mentioned artificial tooth briquet, pigment (pigment) is the colorant for expressing color, is
It gives expression to the color for the nature tooth that matches in excellence or beauty and adds.The present invention is not particularly limited the type of above-mentioned pigment, can use
General colorant, colorant etc..
The present invention contains pigment brown (pigment brown) to assign the color for the nature tooth that matches in excellence or beauty.It contains
The color for being similar to actual teeth color of the photo as shown in Fig. 3 and Fig. 4 can be given expression to after pigment brown by stating.
Preferably, it is compared with the total weight % for the composition for constituting artificial tooth briquet, above-mentioned pigment brown is that 0.1 weight % is arrived
1.0 weight %.It is detached from the more difficult color for giving expression to the nature tooth that the matches in excellence or beauty when range of aforementioned weight %.
Below as each step artificial tooth briquet material fabrication process that the present invention will be described in detail.
Step a
The step a of the present invention be it is a kind of 87.0~98.0 weight % of stirring container stirring propylene liguid acid system macromolecule,
0.5~3.0 weight % of Zirconium oxide powder (zirconia powder), 0.5~3.0 weight % of elastomer (elastomer), face
Feed powder red (pigment p ink) 0.5~3.5 weight %, 0.5~3.5 weight % of paratonere (pigment red) and be ready for using
In make gum briquet stirring thing the step of,
Above-mentioned acrylic acid series macromolecule be introduced into as dental artificial tooth and artificial tooth common used material and up to the present always
It is obtained for extensive use, has the advantages that intensity appropriate, volume stability and handling ease and cost of manufacture is relatively low, but i.e.
It is set to have above-mentioned advantage, it is but because weaker in wearability, thermal conductivity, radioactive ray developability and impact strength etc., because
This includes the Zirconium oxide powder (zirconia as a kind of ceramic powder in above-mentioned steps a to improve the problem
powder).Above-mentioned Zirconium oxide powder is that one kind will not cause inflammation or allergic phenomena and biocompatibility is excellent and volume
Stability and impact resistance also excellent substance.
Above-mentioned elastomer (e l astomer) is a kind of original with recurrence when being deformed when applying external force and not applying external force
The substance of the property of position, the present invention include above-mentioned elastomer to have the elastic force for being similar to nature gum.
Above-mentioned pigment pink (pigment pink) and paratonere (pigment red) are to be similar to practical tooth to assign
The color of gum and include that the photo as shown in Fig. 3 and Fig. 4 equally gives expression to phase containing above-mentioned pigment is pink with paratonere
It is similar to the color of practical gum.
Preferably, in above-mentioned steps a, constituting the group composition and division in a proportion of each substance of gum briquet, to be subject to weight % be acrylic acid
It is 87.0 weight % of macromolecule to 98.0 weight %, 0.5 weight % of Zirconium oxide powder to 3.0 weight %, 0.5 weight % of elastomer
To 3.0 weight %, the pink 0.5 weight % of pigment to 3.5 weight %, 0.5 weight % of paratonere to 3.5 weight %.
Above-mentioned acrylic acid series macromolecule be with liquid form by comprising compared with total weight % be less than 87.0 weight %
Words intensity enhancing and influence nature tooth and lead to the abrasion of the nature tooth, the remitted its fury more than 98.0 weight % and
To wear away or scrape scratch it is more fragile.
Above-mentioned Zirconium oxide powder is compared with total weight % less than wearability, thermal conductivity, radioactive ray development if 0.5 weight %
Property and impact strength are unable to reach desired value, the intensity enhancing more than 3.0 weight % and the abrasion for leading to nature tooth.
Above-mentioned elastomer compared with total weight % the physical property less than 0.5 weight % be hardened and can be in mouth in laboratory rodent chow
Intracavitary occurs wound or influences other natural teeth, more difficult in oral cavity nozzle since physical property dies down more than 3.0 weight %
It chews.
Above-mentioned pigment is pink to be respectively less than 0.5 weight % with paratonere or more than 3.5 weight % when beyond expression of words goes out to match in excellence or beauty
The color of natural gum.
The each substance constituted according to foregoing combination ratio is put into well known stirring container and is ready for after stirring
Stirring thing for making gum briquet.
As an implementation form, machine is utilized when being stirred to be ready for the above-mentioned stirring thing for being used to make gum briquet
Tool formula blender (mechanical stirrer) is stirred 1 hour to 12 hours with the rotary speed of 400rpm to 600rpm.
Above-mentioned stirring cannot be equal to be unable to fully stirring between each substance less than the stirring of the rotary speed of 400rpm
It stirs evenly, with the rotary speed stirring higher than 600rpm, the physical property of stirring thing can drastically reduce.
Moreover, the mixing time of above-mentioned stirring was unable to fully stir and make the value as commodity less than 1 hour
It significantly reduces, economy is not met because of optionally excessive agitation although can be sufficiently stirred if ground stirring in more than 12 hours
Benefit.
Step b
The step b of the present invention is that a kind of stirring thing step a injects briquet mold and to injecting above-mentioned briquet mold
Stirring thing irradiation the step of cured gum briquet is formed as the electron beam of ionization energy,
First, above-mentioned curing can rough segmentation be heat cure and electronic beam curing, inherently there is not solid when heat cure
The part of change.Its reason is to form cured film on surface due to the solidification since macromolecule surface, heat is passed to interior
Portion and while realizing solidification needs the regular hour, because surface has formd cured film and so that occurred in solidification process
Volatile organic compounds (VOCs) is present in inside macromolecule, to improve possibility existing for toxicant, at this
Inside can there is uncured parts for macromolecule in the process.
In contrast to this, then in outside, induced chemical hands over coupling reaction to electronic beam curing with injecting powerful energy
(crosslinking) and when irradiating effect is talked about in the thermal energy occurred induced chemical solidification simultaneously and thermosetting, therefore inside macromolecule
There is no uncured part.The characteristic makes the mechanical properties of electronic beam curing higher than thermal curing methods.
It can also realize solidification within a short period of time in terms of carrying out cured time, the VOCs that when solidification may occur
Be not present, be room temperature technique without separately preparing equipment.
In above-mentioned steps b, the stirring thing photograph to injecting above-mentioned briquet mold after the stirring thing injection briquet mold of step a
It penetrates as the electron beam of ionization energy and forms cured gum briquet.
At this point, the electron beam of above-mentioned ionization energy irradiates preferably in the range of 1kGy to 3,000kGy.
Stirring thing can not be fully cured if less than 1kGy irradiating electron beam in above-mentioned steps b, when more than 3,000kGy
Optionally carry out excessive solidification and than less favorable in terms of economic benefit.
Step c
The step c of the present invention be it is a kind of 96.0~99.4 weight % of stirring container stirring propylene liguid acid system macromolecule,
0.5~3.0 weight % of Zirconium oxide powder (zirconia powder), 0.1~1.0 weight % of pigment brown (pigment brown)
And the step of being ready for the stirring thing for making artificial tooth briquet,
Above-mentioned acrylic acid series macromolecule be it is a kind of there is appropriate intensity, volume stability and handling ease and cost of manufacture compared with
Low advantage but also has the shortcomings that wearability, thermal conductivity, radioactive ray developability and impact strength etc. weaker substance.
Therefore Zirconium oxide powder is added in order to improve the high molecular disadvantage of aforementioned acrylic acid series.Above-mentioned Zirconium oxide powder is
It is a kind of to cause inflammation or allergic phenomena, biocompatibility be excellent and volume stability and impact resistance also excellent object
Matter.
Above-mentioned pigment brown (pigment brown) is to be similar to the color of human teeth in order to give expression to and add, such as
Above-mentioned pigment is equally added with photo shown in Fig. 3 and Fig. 4 and gives expression to the color for being similar to actual teeth.
Preferably, in above-mentioned steps c, constituting the group composition and division in a proportion of artificial tooth briquet, to be subject to weight % be acrylic acid series macromolecule
96.0 weight % to 99.4 weight %, 0.5 weight % of Zirconium oxide powder to 3.0 weight %, pigment brown 0.1 weight % to 1.0 weights
Measure %.
Above-mentioned acrylic acid series macromolecule be with liquid form by comprising compared with total weight % be less than 96.0 weight %
Words intensity enhancing and influence nature tooth and lead to the abrasion of the nature tooth, the remitted its fury more than 99.4 weight % and
To wear away or scrape scratch it is more fragile.
Above-mentioned Zirconium oxide powder is compared with total weight % less than wearability, thermal conductivity, radioactive ray development if 0.5 weight %
Property and impact strength are unable to reach desired value, the intensity enhancing more than 3.0 weight % and the abrasion for leading to nature tooth.
Above-mentioned pigment brown is less than 0.1 weight % or more than 1.0 weight % when beyond expression of words goes out to match in excellence or beauty the color of nature tooth.
The each substance constituted according to foregoing combination ratio when preparing gum briquet as equally put
The stirring thing for making artificial tooth briquet is ready for after being stirred in into well known stirring container.
Preferably, above-mentioned stirring utilizes mechanical stirrer (mechanical stirrer) with 400rpm to 600rpm's
Rotary speed stirs 1 hour to 12 hours.
Above-mentioned stirring cannot be equal to be unable to fully stirring between each substance less than the stirring of the rotary speed of 400rpm
It stirs evenly, with the rotary speed stirring higher than 600rpm, the physical property of stirring thing can drastically reduce.
Moreover, the mixing time of above-mentioned stirring was unable to fully stir and make the value as commodity less than 1 hour
It significantly reduces, economy is not met because of optionally excessive agitation although can be sufficiently stirred if ground stirring in more than 12 hours
Benefit.
Step d
The step d of the present invention is a kind of briquet mold for foring gum briquet of the stirring thing injection step b step c
And the stirring thing irradiation to injecting above-mentioned briquet mold is formed as the electron beam of ionization energy and gum briquet is integrally solid
The step of artificial tooth briquet of change,
In above-mentioned steps d, being solidified to form gum base after irradiating electron beam in the stirring thing injection step b of step c
The briquet mold of block, the stirring thing irradiation to injecting briquet mold form cured artificial tooth base as the electron beam of ionization energy
Block.
At this point, the stirring thing of step c being injected irradiating electron beam after cured gum briquet and so that acrylic acid series is high
Each molecular particle of molecule and the molecule that is distributed on above-mentioned gum briquet combine, and above-mentioned gum is allowed by the natural mechanism
Briquet is integrated with the realization of artificial tooth briquet.
Step e
The step e of the present invention is to be processed after a kind of artificial tooth briquet step d is taken out from briquet mold to fit
The step of for CAD/CAM system,
The artificial tooth briquet formed after gum briquet in above-mentioned steps d is integrally cured is taken out from briquet mold and will
It is shaped to before teeth patterning, and operation is processed to be suitable for CAD/CAM system to adjust thickness and upper
Surface gives flat with lower surface.It carries out above-mentioned processing operation and is able to form the same base of its shape photo as shown in Figure 4
Block.
On the other hand, the briquet photo as shown in Figure 9 that have passed through above-mentioned steps e is (left：Planar portions, it is right：Back part) equally
Ground makes the integrally formed artificial tooth of tooth and gum by the way that CAD/CAM system is shaped to required teeth patterning.
The present invention is further illustrated with reference to embodiment and experimental example.
The making of [embodiment] artificial tooth briquet
First, the material for expressing color needed when making gum briquet and artificial tooth briquet is had selected.Prepare
Can express gum briquet color pigment it is pink with paratonere, 3 kinds of pigment in total such as the pigment brown that can express artificial tooth briquet color
(Fig. 2).
Before making gum briquet and artificial tooth briquet, the stirring thing for being used for making each briquet is first prepared.Gum briquet
98 weight % of acrylic acid series macromolecule, 0.5 weight % of Zirconium oxide powder, 0.5 weight % of elastomer, pigment powder in the form of liquid phase
The stirring thing for making gum briquet is made in the ratio stirring of 0.5 weight % of red 0.5 weight % and paratonere, and tooth briquet is then
The ratio of 99.4 weight % of acrylic acid series macromolecule, 0.5 weight % of Zirconium oxide powder, 0.1 weight % of pigment brown in the form of liquid phase
The stirring thing (Fig. 3) for making artificial tooth briquet is made in rate stirring.
The stirring thing for making gum briquet stirred according to foregoing combination ratio is slowly injected into until big
Until the 20mm height for about reaching briquet mold, then irradiation is cured as the electron beam of the 100kGy of ionization energy.Then,
Being slowly injected on the gum briquet top of briquet mold cured for making the stirring thing of artificial tooth briquet until reaching about
Until 20mm height, the electron beam for then irradiating the 100kGy as ionization energy is cured and is finally made the artificial tooth of the present invention
Processing briquet (Fig. 4).
The surface of [experimental example 1] artificial tooth briquet and cross-section analysis
In order to observe surface and the section morphology of the briquet made by above-described embodiment, applied after freezing test piece using liquid nitrogen
It is ready for section test piece after vertical cut-out with adding moment strength.
Surface is analyzed to the test piece being ready for using SEM (JSM-7500F, JEOL, JAPAN), in order to obtain high-resolution
Image and use sputter coating instrument (sputter coater) to carry out platinum plating (platinum coating) in 70 seconds.Separately
On the one hand, it allows the distance between flying-spot microscope and test piece to maintain 7mm to 8mm, is analyzed using the energy of 15kV.
Photo shown in Fig. 5 is please referred to, observes that the surface of gum briquet is in smooth film form.It differently with surface, can
In the form of the substance in cross-section to pigment, zirconium oxide, elastomer etc.In contrast to this, although the table of artificial tooth briquet
The smooth phenomenon of film form is also equally observed in face with gum briquet, but section is then different from configuration of surface by based on electronics
The solidification of beam and observe special bridge formation form.Moreover, different from gum briquet, observing that amount of pigment is less without advising
Then, the more fractured zones of branch (crack distribution).
The physical characteristic (bending strength) of [experimental example 2] artificial tooth briquet is analyzed
The artificial tooth (artificial tooth) used in oral cavity would generally be by temperature change, machinery pressure in the daily chewing of injection or oral cavity
The influence of the various factors such as power.
Therefore, the present inventor in order to ensure artificial tooth briquet physical stability and with made by above-described embodiment
Briquet has carried out bending strength experiment.Test piece is distinguished into gum briquet (PINK) and has carried out standard with artificial tooth briquet (BROWN)
It is standby and tested according to ASTM D790 specifications.Moreover, all faces are all ground with 30 μm of grinding agents, lotus is born
The face of weight is then finally polished (polishing) with 15 μm of diamond abrasive.
3 points of INSTRON (Instron 5566, Instron Co., USA) device measuring is utilized when measuring bending strength
Bending strength.Install 5kN jigs (jig) and with 5mm/min test speeds (cross-head speed) apply loading until
It is tested until test piece fracture completely and on the basis of the measured value before fracture.Experimental result is then shown in following tables
1。
[table 1]
| Gum briquet (PINK) | Artificial tooth briquet (BROWN) | |
| Bending strength (unit：MPa) | 94.54±4.59 | 95.62±5.64 |
With reference to the pattern analysis experimental result of above-mentioned table 1 and Fig. 6, gum briquet (PINK) and artificial tooth briquet
(BROWN) bending strength measurement result shows that bending strength value is respectively 94.54 ± 4.59,95.62 ± 5.64MPa.According to
The result it is found that as the acrylic acid series macromolecule of stroma ground substance and the content of Zirconium oxide powder be about 90% or more and
The physical property numerical value of each briquet shows similar complexion and can obtain pigment content will not cause larger shadow to the physical property of briquet
Loud conclusion.
[experimental example 3] Cytotoxicity evaluation
Fiber sprout cell (L929) is used to exist in order to assess the cytotoxicity of the briquet made by above-described embodiment
It is assessed on invitro.Under conditions of 5%CO2 and 37 DEG C, L929 cells are containing 10% fetal calf serum (fetal
Bovine serum, FBS) change with the Dulbecco of 1% Pen .- Strep (penicillin-streptomycin, P/S)
It has been cultivated 3 days in culture solution in good Eagle's medium (Dulbecco's modified eagle medium, DMEM).Quilt
Then with 0.05% trypsase, (tryps in/EDTA (gibco, USA) detach cell from culture dish and utilize the cell of culture
After DMEM wares 5ml convergence cells containing 10%FBS, the cell that 10 minutes have been centrifuged under 1000rpm is used to test.
After measuring material weight according to ISO 10993-12 specifications, the test piece that 24 hours are extracted in ware is divided
Extract is separately taken care of from rear, then in 48 orifice plates (48well plate) L929cells with 1 × 104cells/
Well plant division, then with 5%CO2,37 DEG C of CMC models 24 hours in the DMEM containing 10%FBS.Later, scavenger-cell
Culture solution and the ware extracted with front are cultivated after replacing, and the ware of extraction is removed and passed through after 24 hours
CCK-8assay is assessed.As a contrast (control) the survival ability of the groups of cells for not using extracted ware
(TCPs, Tissue culture plates) is used, and the ware of extraction is removed after have passed through 24 hours and passes through CCK-8assay
It is assessed.On the other hand, as a contrast (control) the survival ability for the groups of cells for not using extracted ware
(TCPs, Tissue culture plates) is used.Experimental result is then shown in following table 2.
[table 2]
| TCPs | Compound artificial tooth briquet (present invention) | |
| End value (unit：%) | 100 | 91.65±6.36 |
Illustrated with reference to the figure of above-mentioned table 2 and Fig. 8, Cytotoxicity evaluation result show using TCPs as
It can be confirmed that the compound artificial tooth briquet of the present invention shows 91.65 ± 6.36% end value when 100% benchmark.
Therefore, the survival rate of cell shows 90% or more numerical value, to meet 80% or more of ISO 10993 benchmark
Cells survival rate confirms as no cytotoxicity and harmless product.
Claims (7)
1. a kind of artificial tooth briquet material, which is characterized in that
With 87.0~98.0 weight % of propylene liguid acid system macromolecule, Zirconium oxide powder (zirconia powder) 0.5~3.0
Pink (pigment pink) 0.5~3.5 weight % of weight %, 0.5~3.0 weight % of elastomer (elastomer), pigment,
The gum briquet of 0.5~3.5 weight % composition of paratonere (pigment red) and with propylene liguid acid system macromolecule 96.0~
99.4 weight %, 0.5~3.0 weight % of Zirconium oxide powder (zirconia powder), pigment brown (pigment brown) 0.1
The artificial tooth briquet of~1.0 weight % compositions is integrally formed.
2. artificial tooth briquet material according to claim 1, which is characterized in that
Above-mentioned acrylic acid series macromolecule passes through bisphenol-A (bisphenol-A) and hydroxyethyl methacrylate (hydroxyethyl
Methacrylate, HEMA) synthetic reaction formed,
Above-mentioned synthetic reaction includes for realizing with promoting the catalyst reacted.
3. artificial tooth briquet material according to claim 2, which is characterized in that
Above-mentioned bisphenol-A (bisphenol-A) and hydroxyethyl methacrylate (hydroxyethyl methacrylate, HEMA)
Blending ratio with mol ratios be 1:1.0~5.0.
4. artificial tooth briquet material according to claim 2, which is characterized in that
Above-mentioned catalyst is from triphenyl phosphate (triphenyl phosphate), triethylamine (triethylamine), carbonic acid
Some the above substance selected in calcium (calcium carbonate), potassium hydroxide (potassium hydroxide).
5. a kind of artificial tooth briquet material fabrication process, which is characterized in that
Above-mentioned production method includes the following steps：
A) in 87.0~98.0 weight % of stirring container stirring propylene liguid acid system macromolecule, Zirconium oxide powder (zirconia
Powder) 0.5~3.0 weight %, 0.5~3.0 weight % of elastomer (elastomer), pigment are pink (pigment pink)
0.5~3.5 weight %, 0.5~3.5 weight % of paratonere (pigment red) and be ready for the stirring for making gum briquet
Object；
B) stirring thing of above-mentioned steps a is injected briquet mold, to injecting the stirring thing irradiation of above-mentioned briquet mold as ionization
Can electron beam and form cured gum briquet；
C) in 96.0~99.4 weight % of stirring container stirring propylene liguid acid system macromolecule, Zirconium oxide powder (zirconia
Powder) 0.5~3.0 weight %, 0.1~1.0 weight % of pigment brown (pigment brown) and be ready for for making artificial tooth base
The stirring thing of block；
D) the briquet mold for foring gum briquet of the stirring thing injection step b of above-mentioned steps c, to injecting above-mentioned briquet mould
The stirring thing irradiation of tool is formed and gum briquet integrally cured artificial tooth briquet as the electron beam of ionization energy；
E) it is processed after the artificial tooth briquet of above-mentioned steps d being taken out from briquet mold to be suitable for CAD/CAM system.
6. artificial tooth briquet material fabrication process according to claim 5, which is characterized in that
It is 1kGy~3,000kGy when irradiating the electron beam as ionization energy in above-mentioned steps b and step d.
7. artificial tooth briquet material fabrication process according to claim 5, which is characterized in that
Stirring in above-mentioned steps a and step c is carried out 1~12 hour with the rotary speed of 400~600rpm.
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