CN106037960A - Padlock type tooth self-locking bracket and preparation method thereof - Google Patents
Padlock type tooth self-locking bracket and preparation method thereof Download PDFInfo
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- CN106037960A CN106037960A CN201610470310.9A CN201610470310A CN106037960A CN 106037960 A CN106037960 A CN 106037960A CN 201610470310 A CN201610470310 A CN 201610470310A CN 106037960 A CN106037960 A CN 106037960A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/28—Securing arch wire to bracket
- A61C7/34—Securing arch wire to bracket using lock pins
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
- C04B2235/3246—Stabilised zirconias, e.g. YSZ or cerium stabilised zirconia
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6022—Injection moulding
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/606—Drying
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/612—Machining
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Abstract
The invention relates to a padlock type tooth self-locking bracket which is characterized in that the tooth self-locking bracket comprises a base, a bottom plate and a sliding cover plate, wherein the bottom plate is fixedly mounted on the base and comprises a first bottom plate and a second bottom plate; a groove is formed between the first bottom plate and the second bottom plate; a locking groove is formed at the top of the first bottom plate; the sliding cover plate is arranged in the locking groove; one end of the sliding cover plate is movably connected in the locking groove through a spring buckle, and a downward arc hook plate is arranged at the other end of the sliding cover plate; an inward-sunk trench structure is arranged beside the second bottom plate; and the trench structure is matched with the arc hook plate. The padlock type tooth self-locking bracket is fixed on the bottom plate of a tooth bracket through the arc hook plate thereof to finish the closing work of the tooth bracket groove, and the stability of an arch wire in the groove is guaranteed; and moreover, the device is simple in structure and convenient to operate.
Description
Technical field
The present invention relates to a kind of tooth locking bracket, especially relate to a kind of hung and buckled tooth locking bracket and preparation side thereof
Method, belongs to dental orthodontic technical field.
Background technology
In orthodontic technology field, bracket is the vitals implementing NITI Ω arch wire.Bracket bonding, in crown surfaces, is used for
Accommodating and Fixed Orthodontics arch wire, arch wire imposes various types of Orthodontic force by bracket to tooth, thus reaches to improve patient's tooth
Tooth is engaged, and makes the purpose that tooth arrangement is neat.Tooth bracket is one of important composition parts of fixed orthodontics, and its pedestal is straight
Connect and be adhered to crown surfaces, by the arch wire in bracket, tooth is imposed various types of Orthodontic force, to reach the mesh of orthodontic therapy
's.The mounting means of arch wire directly affects the locating effect of tooth bracket, therefore to ensure accurate in tooth bracket of arch wire
Position, uses multiple fixed structure to position it the most on the market, but these structures is compared complex, the most right
In the tooth bracket of small volume, need take a significant amount of time adjustment and assemble these location structures, operate and waste time and energy,
The efficiently demand of the tooth bracket mounting technique simplified can not be met.
Locking bracket is owing to need not little ligature of steel wire maintenance, and the chair other operating time is short, and low force, and comfortableness is good, moves
Dynamic speed, treatment time is short, is therefore deeply welcome by patient.Present stage, locking bracket mainly has the class such as rustless steel and pottery
Type.Rustless steel locking bracket is simple due to preparation technology, low cost and by extensively use, but, the shade deviation of rustless steel and tooth
Different relatively big, aesthetics is poor, and meanwhile, some patients is to the nickel allergy in rustless steel.Comparatively speaking, ceramic bracket mostly be transparent or with
The color and luster that tooth is close, aesthetics is good, and has good biocompatibility, and volume is little, intensity is high and adamantine coheres
Intensity is good, is presently the most the bracket of advanced person.
Ceramic bracket is little due to size, and required precision is high, causes it to prepare difficulty big.The ceramic bracket of present stage mostly by
Prepared by monocrystalline or polycrystal alumina.Signle crystal alumina bracket is that aluminium oxide is made monocrystalline, then by cutting, polishing and heat treatment
Making, complex technical process, cost is high.Polycrystal alumina is then to use the modes such as injection moulding to make base alumina powder
Body, more sintered, grinding and buffing makes.Research shows, zirconia ceramics has higher intensity and fracture toughness and low
Coefficient of friction, but, compared with aluminium oxide, when zirconium oxide is used for preparing bracket, the shortcoming mainly having following aspect: (1) is right
In monocrystalline zirconium oxide bracket, owing to zirconic fusing point is of a relatively high, therefore prepare difficulty bigger than alumina single crystal.(2) for
Polycrystal zirconia bracket, owing to zirconic sintering temperature is of a relatively high, also higher than polycrystal alumina (3) oxidation of its preparation cost
Zirconium has a feature of low temperature aging, i.e. low temperature and with the presence of water in the environment of, zirconium oxide generation is by four directions monoclinic phase in opposite directions
Changing, volumetric expansion causes bracket to ftracture.Improving surface smoothness is the important technology approach preventing zirconium oxide low temperature aging, because of
This should be avoided the operations such as cutting in bracket preparation process as far as possible.Zirconic disadvantages mentioned above causes and aluminium oxide bracket phase
Ratio, cost performance is the highest.Those skilled in the art is devoted to this problem always, but the never side of being well solved
Case.
Summary of the invention
The present invention just for prior art design present in problem, it is provided that a kind of hung and buckled tooth locking bracket
Preparation method, the method, by controlling each step in production process and the ingenious cooperation of Related Component cleverly, produces
Go out that cost is relatively low, fineness more preferable, and the locking bracket that performance is more excellent.
To achieve these goals, the technical solution used in the present invention is as follows, a kind of hung and buckled tooth locking bracket, described
Tooth locking bracket include that pedestal, base plate and slide cover, described base plate are fixedly mounted on pedestal, described base plate bag
Including the first base plate and the second base plate, be provided with groove between the first base plate and the second base plate, the top of described first base plate is provided with lock
Tight groove, is provided with slide cover in described locking groove, and one end of slide cover is movably connected in locking by clamp button of the spring
In groove, the other end of slide cover is provided with downward arcuated hook plate, and the side of described second base plate is provided with the ditch caved inward
Groove structure, described groove structure matches with arcuated hook plate, the convenient dismounting of this technical scheme and replacing arch wire, stable connection.
As a modification of the present invention, described locking groove both sides are provided with a pair positioning runner, described positioning runner
Being made up of two locating slots and a sliding tray, described slide cover is laterally moved in positioning runner by clamp button of the spring
Dynamic;By positioning runner and the compound action of clamp button of the spring, slide cover is movably in locking groove, works as tooth bracket
Need dismountable, can be positioned by locating slot by slide cover to the outer side shifting of groove structure, then revolved by clamp button of the spring
Turn and open slide cover, simple to operation.
As a modification of the present invention, the first described base plate and the second base plate are equipped with threading via hole, by wearing
Line three-way hole structure facilitates medical personnel to carry out threading operation, it is ensured that tooth bracket stability in the course of the work.
As a modification of the present invention, the bottom of described pedestal is the teeth contact face of arc, teeth contact face
It is formed around the cannelure caved inward together.
The preparation method of a kind of hung and buckled tooth locking bracket, it is characterised in that said method comprising the steps of: 1) will
Organic monomer and cross-linking agent dissolve water, and add dispersant, stir;2) by yittrium oxide PSZ powder
End joins in above-mentioned solution, uses stirring and ultrasonic disperse, makes mixed slurry;The content of described yittrium oxide is 3mol%, oxygen
The particle diameter changing yttrium partially stabilized Zirconium oxide powder consists of: 400 ~ 700nm accounts for 70 ~ 90%, and 10 ~ 50nm accounts for 10 ~ 30%;Described slurry
The volume content of middle yittrium oxide PSZ powder is 50 ~ 60%, and described dispersant dosage is the partially stabilized oxygen of yittrium oxide
Change the 0.5 ~ 2% of zirconium powder;
3) mixed slurry is carried out vacuum degassing, remove gas therein;
4) adding initiator and catalyst in mixed slurry, stir, described initiator is Ammonium Persulfate 98.5, and catalyst is N,
N, N ', N ' tetramethylethylenediamine;
5) mixed slurry is injected in mould, 65 ~ 75 DEG C, be incubated 1 hour under 100-300MPa;
6) demoulding, dried, base substrate is carried out rubbing down;
7) base substrate after rubbing down is sintered at 1300-1500 DEG C;
8) goods after sintering are carried out secondary rubbing down.
As a modification of the present invention, it is yittrium oxide that organic monomer described in described step 1) and cross-linking agent add total amount
The 3 ~ 6% of PSZ powder, organic monomer and cross-linking agent mass ratio are 10:1.
As a modification of the present invention, in described step 1), dispersant dosage is yittrium oxide PSZ powder
0.5 ~ 2%.
As a modification of the present invention, in described step 4), total addition of described initiator and catalyst is monomer
The 0.5 ~ 1% of weight, the mass ratio of described initiator and catalyst is 1:1.
As a modification of the present invention, organic monomer described in described step 1) is acrylamide or methacryl
Amine, handing over sign agent is N, N '-methylene-bisacrylamide;Dispersant is poly amic acid or polyacrylamide.
Relative to prior art, advantages of the present invention is as follows: the present invention passes through rotatable slide cover, by carry
Arcuated hook plate is fixed on the base plate of tooth bracket, and then completes the closing work of tooth bracket groove, it is ensured that arch wire
Stablizing in groove, the simple in construction of device own, simple operation;Simultaneously when tooth bracket being needed dismounting, by translation
Promote slide cover can open slide cover, substantially increase medical personnel's work when installing and safeguard tooth bracket and imitate
Rate, preparation method has the advantage that, 1) whole production technology is simply, easily operate;2) this technical scheme is by adding crystal grain
The nano zirconium oxide powder of a size of 10 ~ 50nm, improves the fineness of base substrate, reduces the sintering temperature of goods, reduces
Production cost;Simultaneously because have employed the granularity pattern of thickness collocation, it is to avoid the nano zircite of simple employing (10 ~ 50) nm
During powder, for making base substrate fine and close, need to use the Process of pressure sintering;By applying pressure during note film, improve
The fineness of base substrate and consistency, improve yield rate during base substrate polishing;3) this technical scheme is by throwing base substrate
Optical processing, reduces the polishing difficulty of end article, improves the fineness of end article, and can effectively prevent the low temperature of goods
Aging;4), compared with the technique such as this technical scheme and injection moulding, owing to content of organics is low, the blank density obtained is high, row
The glue time is short, and the goods after burning till are indeformable, and yield rate is high, and production cost is low, and cost performance is high;5) with existing zirconia ceramics
Gel-casting process is compared, and owing to being applied with pressure in injection molded process, therefore, the blank density obtained is high, billet surface
Highly polished.This technical scheme cost is relatively low, it is simple to large-scale popularization and application.
Accompanying drawing explanation
Fig. 1 is the structure diagram of the present invention;
Fig. 2 is the slide cover structure diagram of the present invention;
Fig. 3 is the plan structure sketch of the present invention;
Fig. 4 be pedestal of the present invention look up structure diagram;
Wherein, 1 pedestal, 2 first base plates, 3 second base plates, 4 grooves, 5 slide covers, 6 locking grooves, 7 Spring Cards
Button, 8 arcuated hook plates, 9 groove structures, 10 positioning runners, 10-1 locating slot, 10-2 sliding tray, 11 threading via holes, 12
Teeth contact face, 13 cannelures.
Detailed description of the invention
In order to deepen the understanding of the present invention and understanding, below in conjunction with embodiment, the invention will be further described and is situated between
Continue.
Embodiment 1: one hung and buckled tooth locking bracket as shown in Figure 1, 2, 3, described tooth locking bracket includes
Pedestal 1, base plate and slide cover 5, described base plate is fixedly mounted on pedestal 1, and described base plate includes the first base plate 2 and
Two base plates 3, are provided with groove 4 between the first base plate 2 and the second base plate 3, the top of described first base plate 2 is provided with locking groove 6, institute
Being provided with slide cover 5 in the locking groove 6 stated, one end of slide cover 5 is movably connected in locking groove 6 by clamp button of the spring 7
In, the other end of slide cover 5 is provided with downward arcuated hook plate 8, and the side of described second base plate 3 is provided with the groove caved inward
Structure 9, described groove structure 9 matches with arcuated hook plate 8.
Embodiment 2: as shown in Figure 1, 2, 3, the both sides of locking groove 6 are provided with a pair positioning runner 10, described positioning runner
10 are made up of two locating slot 10-1 and a sliding tray 10-2, and described slide cover 5 is sliding in location by clamp button of the spring 7
Transverse shifting in groove 10;By positioning runner 10 and the compound action of clamp button of the spring 7, slide cover 5 is can in locking groove 6
Movement, when tooth bracket needs dismountable, can be by slide cover 5 to the outer side shifting of groove structure 9, by locating slot 10-1
Location, then by clamp button of the spring 7 Unscrew slide cover 5, simple to operation.
Embodiment 3: as shown in Figure 1, 2, 3, the first base plate 2 and the second base plate 3 is equipped with threading via hole 11, passes through threading
Through hole 11 structure facilitates medical personnel to carry out threading operation, it is ensured that tooth bracket stability in the course of the work.
Embodiment 4: as shown in Fig. 1,2,3 and 4, the slide cover 5 of the present invention uses toughened ceramic material to make, the most also
Macromolecular material or tough alloy can be used to make, and the base 2,3 of the present invention and pedestal 1 use zirconia material to make,
The teeth contact face 12 that bottom is arc of pedestal 1 of the present invention, being formed around of teeth contact face 12 concaves together
The cannelure 13 fallen into, owing to teeth contact face 12 is in close contact with dental surface, facilitates operator by the cannelure 13 of depression
Member takes off tooth bracket by instruments such as micro-clippers, easy and simple to handle.
Embodiment 5: the preparation method of a kind of hung and buckled tooth locking bracket, said method comprising the steps of: 1) will have
Machine monomer and cross-linking agent dissolve water, and add dispersant, stir;2) by yittrium oxide PSZ powder
Join in above-mentioned solution, use stirring and ultrasonic disperse, make mixed slurry;The content of described yittrium oxide is 3mol%, oxidation
The particle diameter of yttrium partially stabilized Zirconium oxide powder consists of: 400 ~ 700nm accounts for 70 ~ 90%, and 10 ~ 50nm accounts for 10 ~ 30%;In described slurry
The volume content of yittrium oxide PSZ powder is 50 ~ 60%, and described dispersant dosage is the partially stabilized oxidation of yittrium oxide
The 0.5 ~ 2% of zirconium powder, preferably 1-1.5%.
3) mixed slurry is carried out vacuum degassing, remove gas therein;
4) adding initiator and catalyst in mixed slurry, stir, described initiator is Ammonium Persulfate 98.5, and catalyst is N,
N, N ', N ' tetramethylethylenediamine;
5) mixed slurry is injected in mould, 65 ~ 75 DEG C, be incubated 1 hour under 100-300MPa;It is preferably 70 DEG C, 200MPa
Lower insulation 1 hour;
6) demoulding, dried, base substrate is carried out rubbing down;
7) base substrate after rubbing down is sintered at 1300-1500 DEG C, sinter at preferably 1,400 1450 DEG C;
8) goods after sintering are carried out secondary rubbing down.
It is the 3 of yittrium oxide PSZ powder that organic monomer described in described step 1) and cross-linking agent add total amount
~ 6%, organic monomer and cross-linking agent mass ratio are 10:1.
In described step 1), dispersant dosage is the 0.5 ~ 2% of yittrium oxide PSZ powder, preferably 1%,
In described step 4), described initiator and total addition is monomer weight the 0.5 ~ 1% of catalyst, described initiator and
The mass ratio of catalyst is 1:1.
Organic monomer described in described step 1) is acrylamide or Methacrylamide, and handing over sign agent is N, N '-methylene
Bisacrylamide;Dispersant is poly amic acid or polyacrylamide.
It is new that at least one in technical characteristic described in embodiment 2,3,4,5 and embodiment 1 can also be combined formation by the present invention
Embodiment.
It should be noted that above-described embodiment, be not used for limiting protection scope of the present invention, in technique scheme
Equivalents or replacement done by the basis of each fall within the scope that the claims in the present invention are protected.
Claims (9)
1. a hung and buckled tooth locking bracket, it is characterised in that described tooth locking bracket includes pedestal, base plate and slip
Cover plate, described base plate is fixedly mounted on pedestal, and described base plate includes the first base plate and the second base plate, the first base plate and
Being provided with groove between two base plates, the top of described first base plate is provided with locking groove, is provided with slide lid in described locking groove
Plate, one end of slide cover is movably connected in locking groove by clamp button of the spring, and the other end of slide cover is provided with downward
Arcuated hook plate, the side of described second base plate is provided with the groove structure caved inward, described groove structure and arcuated hook plate phase
Coupling.
Hung and buckled tooth locking bracket the most according to claim 1, it is characterised in that described locking groove both sides are provided with
A pair positioning runner, described positioning runner is made up of two locating slots and a sliding tray, and described slide cover passes through bullet
Spring is buckled in transverse shifting in positioning runner.
Hung and buckled tooth locking bracket the most according to claim 1, it is characterised in that the first described base plate and second end
Threading via hole it is equipped with on plate.
Hung and buckled tooth locking bracket the most according to claim 1, it is characterised in that the bottom of described pedestal is arc
Teeth contact face, the cannelure being formed around caving inward together in teeth contact face.
5. the preparation method of hung and buckled tooth locking bracket described in any one of claim 1-4, it is characterised in that described method bag
Include following steps: 1) organic monomer and cross-linking agent are dissolved water, and add dispersant, stir;2) by yittrium oxide portion
Point stabilized zirconia powders joins in above-mentioned solution, uses stirring and ultrasonic disperse, makes mixed slurry;Described yittrium oxide
Content is 3mol%, and the particle diameter of yittrium oxide PSZ powder consists of: 400 ~ 700nm accounts for 70 ~ 90%, and 10 ~ 50nm accounts for
10~30%;In described slurry, the volume content of yittrium oxide PSZ powder is 50 ~ 60%, and described dispersant dosage is
The 0.5 ~ 2% of yittrium oxide PSZ powder;
3) mixed slurry is carried out vacuum degassing, remove gas therein;
4) adding initiator and catalyst in mixed slurry, stir, described initiator is Ammonium Persulfate 98.5, and catalyst is N,
N, N ', N ' tetramethylethylenediamine;
5) mixed slurry is injected in mould, 65 ~ 75 DEG C, be incubated 1 hour under 100-300MPa;
6) demoulding, dried, base substrate is carried out rubbing down;
7) base substrate after rubbing down is sintered at 1300-1500 DEG C;
8) goods after sintering are carried out secondary rubbing down.
The preparation method of hung and buckled tooth locking bracket the most according to claim 5, it is characterised in that in described step 1)
It is the 3 ~ 6% of yittrium oxide PSZ powder that described organic monomer and cross-linking agent add total amount, organic monomer and cross-linking agent
Mass ratio is 10:1.
The preparation method of hung and buckled tooth locking bracket the most according to claim 5, it is characterised in that in described step 1)
Dispersant dosage is the 0.5 ~ 2% of yittrium oxide PSZ powder.
The preparation method of hung and buckled tooth locking bracket the most according to claim 5, it is characterised in that described step 4)
In, described initiator and total addition is monomer weight the 0.5 ~ 1% of catalyst, described initiator and the mass ratio of catalyst
For 1:1.
The preparation method of hung and buckled tooth locking bracket the most according to claim 8, it is characterised in that in described step 1)
Described organic monomer is acrylamide or Methacrylamide, and handing over sign agent is N, N '-methylene-bisacrylamide;Dispersant
For poly amic acid or polyacrylamide.
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CN201610470310.9A CN106037960A (en) | 2016-06-26 | 2016-06-26 | Padlock type tooth self-locking bracket and preparation method thereof |
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CN201610470310.9A CN106037960A (en) | 2016-06-26 | 2016-06-26 | Padlock type tooth self-locking bracket and preparation method thereof |
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CN107651048A (en) * | 2017-10-24 | 2018-02-02 | 江门市长华集团有限公司 | A kind of motorcycle assembly line |
CN110201564A (en) * | 2019-04-08 | 2019-09-06 | 华电电力科学研究院有限公司 | Locking device and locking method in a kind of boiler drum medicine system |
CN110947029A (en) * | 2019-12-16 | 2020-04-03 | 浙江全景医疗科技有限公司 | Manufacturing and weaving process of full-zirconia cellucotton and application thereof |
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CN110201564A (en) * | 2019-04-08 | 2019-09-06 | 华电电力科学研究院有限公司 | Locking device and locking method in a kind of boiler drum medicine system |
CN110947029A (en) * | 2019-12-16 | 2020-04-03 | 浙江全景医疗科技有限公司 | Manufacturing and weaving process of full-zirconia cellucotton and application thereof |
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CN114569270A (en) * | 2020-03-21 | 2022-06-03 | 福建新安格口腔技术发展有限公司 | Orthodontic bracket easy to replace and preparation method thereof |
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