CN108354681A - Maintenance, the integrated gutta-percha point of tip of a root closing in a kind of argentiferous titanium alloy root pipe - Google Patents
Maintenance, the integrated gutta-percha point of tip of a root closing in a kind of argentiferous titanium alloy root pipe Download PDFInfo
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- CN108354681A CN108354681A CN201810189357.7A CN201810189357A CN108354681A CN 108354681 A CN108354681 A CN 108354681A CN 201810189357 A CN201810189357 A CN 201810189357A CN 108354681 A CN108354681 A CN 108354681A
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- gutta
- maintenance
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- percha point
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/50—Implements for filling root canals; Methods or instruments for medication of tooth nerve channels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/50—Preparations specially adapted for dental root treatment
- A61K6/54—Filling; Sealing
-
- 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
- A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys
Abstract
The invention discloses maintenances in a kind of argentiferous titanium alloy root pipe, the integrated gutta-percha point of tip of a root closing, the gutta-percha point is equipped with maintenance section successively from top to bottom, closed section, the maintenance Duan Youyin titanium alloys are made, the closed section is made of gutta-percha, maintenance section lower face, which extends downwardly, to be useful for maintenance section, the combined linkage section of closed section, it is equipped with the scale section for measuring canalis radicis dentis depth in maintenance section upper end, the present invention is directed to the gutta-percha point used in root canal and proposes new structure, it is high with apical area seal, safety is good, operability is strong, versatility is good, it is at low cost, the service life is longer, the characteristics of fixation.
Description
Technical field
The present invention relates to solid in the argentiferous titanium alloy root pipe used in dentistry field, in particular to a kind of root canal
Position, the integrated gutta-percha point of tip of a root closing.
Background technology
Root canal is the most commonly used effective treatment method in the world of dental pulp disease and periapical disease, the original of root canal therapy
Reason is the most of infectious agent removed by mechanically and chemically method in root pipe, and by filling root pipe, closing bizet prevents
The healing for the periapical lesion that periapical lesion or promotion have occurred and that；
In the prior art such as with the patent of invention of mandate, application number：201621237319.7 the applying date：2016-11-18, patent
Title " canalis radicis dentis filling point ", the technical solution and the structure of the technical program are the most similar, but the technical side of documents
There is prodigious technological improvement spaces for case；
The reason is as follows that：" canalis radicis dentis filling point includes closed section, filling section and end segment ", wherein closed section, tail in documents
Section is titanium alloy wire of no vanadium without nickel, and closed section is metal material, and closed section is located at canalis radicis dentis tip, on the one hand due to tooth
Root pipe inside dimension very little, closed section it is smaller, considerably increase closed section difficulty of processing, processing cost is very high,
It is i.e. enabled to produce, the price range that can be also born far beyond the consumer group, on the other hand since metal strength is high,
Flexibility is very poor, and opening expansion art in progress pulp cavity to oral cavity doctor proposes very high requirement, considerably increases operating time and difficulty
Coefficient is spent, the requirement to oral cavity doctor is high, poor universality.Even more important problem is that the key of root canal is apical area
Closing, closed section use metal material, closed section and canalis radicis dentis tip of a root inner wall are all sclerous tissues, and the two is rigid contact,
Matching degree is poor, and sealing effect is poor, seriously affects apical area leakproofness and leads to the failure of root canal, also has in the prior art
A kind of mode is exactly to use gutta-percha point made of gutta-percha completely, and the technical solution is the most commonly used, is on the one hand because at low cost, separately
On the one hand be because of good leak tightness, but the gutta-percha point there are the problem of be exactly that intensity is low, there is no maintenance to tooth filler
It acts on, the resin filling material on patient teeth is easy to fall off, and influences late result；
To sum up there are many practical problems for existing technical solution, can't be completely suitable for root canal, there is many problems
Have to be solved.
Invention content
The technical problem to be solved by the present invention is to the shortcomings that for the above prior art, propose a kind of argentiferous titanium alloy
Maintenance, the integrated gutta-percha point of tip of a root closing, new structure is proposed for the gutta-percha point used in root canal, is had in root pipe
Seal is high, safety is good, operability is strong, versatility is good, and at low cost, the service life is longer, fixation.
In order to solve the above-mentioned technical problem, the technical scheme is that being accomplished by the following way：A kind of argentiferous titanium
Maintenance in alloy root pipe, the integrated gutta-percha point of tip of a root closing, including gutta-percha point that shape is cone, gutta-percha point from top to bottom according to
Secondary to be equipped with maintenance section, closed section, maintenance Duan Youyin titanium alloys are made, and closed section is made of gutta-percha, and maintenance section lower end is prolonged downwards
It stretches and is useful for maintenance section, the combined linkage section of closed section, and linkage section is also made of silver-colored titanium alloy, in the maintenance
Duan Shangduan is equipped with the scale section for showing gutta-percha point length；
The component of each element of silver-colored titanium alloy is by mass percentage：K：0.01-0.03%, Ca：0.04-0.06%, Na：
0.02-0.05%, Al：0.03-0.05%, Ag：0.15-0.25% surpluses are Ti and impurity.
In this way, technical solution through the invention, maintenance, tip of a root closing one in a kind of argentiferous titanium alloy root pipe of design
Change gutta-percha point, there is maintenance section, closed section, closed section to be made of gutta-percha, be directly protruding into root of the tooth bottom of the tube, closed section for gutta-percha point
High with canalis radicis dentis matching degree, difficulty of processing is low, at low cost, and sealing effect is good, and maintenance section, closed section are connected by linkage section
It connects, greatly reduces difficulty of processing, while avoiding whole the drawbacks of using metal material, while metal material can be reduced
Usage amount reduces cost.Be also provided with maintenance section in the technical program, can combine closely with resin material, to formed from
The maintenance pile body that pulp cavity is arrived in root pipe, assists filler maintenance, improves integral strength, considerably increases service life.This skill
Maintenance section is made of the material of argentiferous, titanium in art scheme, and titanium quality is small, and intensity is high, and good corrosion resistance, is added simultaneously
Silver, silver are one of trace elements in human body, and micro silver is harmless, and silver-colored chemical constitution determines that its surrounding space generates
Elemental oxygen, elemental oxygen sterilize with strong oxidizing property, add silver ion in titanium alloy wire, can make to have while metalline stake body maintenance
There is antibiotic property；
Silver-colored titanium alloy is also added into K, Ca, Na element in the technical program, which is the element of needed by human body, to people
Body is harmless, while can improve the performance of silver-colored titanium alloy, such as corrosion resistance, wearability, increases its service life, reduces cost.
The technical program also discloses the application method of the gutta-percha point, which clicks step progress：
Step 1：Tooth is cleared up first with dentistry special implement, then according to the quantity of canalis radicis dentis contained in tooth into
Row pulp cavity opens expansion art, and the dental pulp of necrosis is removed, and removes infectious agent with root canal file and root enlargement of pipe matches to gutta-percha point
Size, then gutta-percha point is inserted into canalis radicis dentis and carry out bat X-ray, after result of making film meets the requirements, while recording canalis radicis dentis
The depth of the tip of a root to occlusal surface is H, and maintenance section redundance is cut out, after maintenance section redundance is cut out, remaining gutta-percha
The length of point is L, wherein H-L=2mm, is then placed gutta-percha point in gnotobasis and for use；
Step 2：It carries out disinfection to canalis radicis dentis, then uses temporarily sealing material by the root of the tooth seal of tube, to form enclosed sterile
Cavity is removed the temporarily sealing material on tooth with instrument, after 5-7 days then with oxpara respectively into canalis radicis dentis
For use gutta-percha point surface uniformly smears one layer in chamber surface and step 1, and gutta-percha point is then inserted into canalis radicis dentis inside；
Step 3：After completing step 2, the retention terminal of gutta-percha point is apart from occlusal surface 2mm at this time, then with resin filling material by tooth
Glue point surrounding and the filling of entire defect, wait for that resin filling material solidifies.
The technical solution that the present invention further limits is：
Maintenance, the integrated gutta-percha point of tip of a root closing in argentiferous titanium alloy root pipe above-mentioned, equipped with outwardly convex at linkage section
The helical blade of screw type, can be in preparation process using helical blade structure, and linkage section, which is rotating, to be stretched into gutta-percha, in conjunction with
It is even closer, it is not easily to fall off, while gap can be reduced, bond strength is high.
Maintenance, the integrated gutta-percha point of tip of a root closing in argentiferous titanium alloy root pipe above-mentioned, maintenance section and closing Length Ratio
It is 2:1.
Maintenance, the integrated gutta-percha point of tip of a root closing in argentiferous titanium alloy root pipe above-mentioned, the length of closed section is 5-10mm.
Maintenance, the integrated gutta-percha point of tip of a root closing in argentiferous titanium alloy root pipe above-mentioned, linkage section and closing Length Ratio
It is 3:4 or 3:5.
Maintenance in argentiferous titanium alloy root pipe above-mentioned, the integrated gutta-percha point of tip of a root closing, gutta-percha point taper be 0.04 or
0.06 or 0.08.
The beneficial effects of the invention are as follows：
1, in the argentiferous titanium alloy root pipe that designs of the present invention maintenance, the integrated gutta-percha point of tip of a root closing have maintenance section, closed section,
Linkage section, closed section are made of the gutta-percha of elasticity, are directly protruding into canalis radicis dentis root tip, flexible gutta-percha and root inside pipe wall
Matching degree is high, improves the seal of root canal point end filling, and common Gutta percha material difficulty of processing is low, at low cost.Maintenance section, envelope
It closes two kinds of different materials parts of section to connect by linkage section, greatly reduces difficulty of processing, avoid whole using metal material
The drawbacks of, while the usage amount of metal material can be reduced, reduce cost.
2, maintenance section is also innovatively provided in the technical program, retention terminal stretches into pulp cavity, assists filler maintenance,
After combining closely with resin material, root pipe, gutta-percha point, charges are combined into an entirety, improve charges integral strength, greatly
Increase service life greatly.Maintenance section is made of the material of argentiferous, titanium in the technical program, and titanium quality is small, and intensity is high, and
Good corrosion resistance, silver are one of trace elements in human body, and micro silver is harmless, and silver-colored chemical constitution determines around it
Space generates elemental oxygen, and elemental oxygen sterilizes with strong oxidizing property, adds silver ion in titanium alloy wire, can make metalline stake body maintenance
While have antibiotic property.
3, metal material is creatively combined by the technical program with traditional gutta-percha phase material, has evaded previous single material
The defect of material gutta-percha takes into account seal, safety, operability, versatility, solves root canal filling material cost, fixing-stable
Property the problem of, it is innovative high.
4, silver-colored titanium alloy is also added into K, Ca, Na element in the technical program, which is the member of needed by human body
Element, it is harmless, while the performance of silver-colored titanium alloy can be improved, such as corrosion resistance, wearability, increase its service life, drops
Low cost.
The application method of the gutta-percha point is also disclosed in the technical program simultaneously, this method is easy to operate, easy to operate, uses
Instrument removes the temporarily sealing material on tooth, is then waited for respectively into canalis radicis dentis surface of internal cavity and step 1 with oxpara
Gutta-percha point surface uniformly smears one layer, and gutta-percha point is then inserted into canalis radicis dentis tube chamber；The retention terminal of gutta-percha point at this time
Apart from occlusal surfaces of teeth 2mm, then gutta-percha point is wrapped up with resin filling material, while filling the tooth body of defect, restores tooth body
Shape waits for that resin filling material solidifies, and resin filling material can be made to be closely linked with maintenance section in this way, is not easy
It falls off, increases service life, gutta-percha point smears oxpara with root inside pipe wall, increases the leakproofness of gutta-percha point and root inside pipe wall.
Description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the sectional view of A-A in Fig. 1；
Fig. 3 is the structural schematic diagram of the present invention；
Fig. 4 is structural schematic diagram of this gutta-percha point in Its pulp；
Wherein：1- maintenance sections, 2- closed sections, 3- linkage sections, 4- scale sections, 5- helical blades.
Specific implementation mode
The present invention is described in further detail below；Temporarily sealing material, resin filling material, oxpara are
The prior art, wherein temporarily sealing material：Temporarily it is crowned using Taiwan east power, resin filling material：Using Z350 nano-resins
(3M, the U.S.), oxpara：Using the U.S. permanent root canal filling paste of pine；
Embodiment 1
Maintenance, the integrated gutta-percha point of tip of a root closing in a kind of argentiferous titanium alloy root pipe provided in this embodiment, including shape is circle
The gutta-percha point of taper, gutta-percha point are equipped with maintenance section 1, closed section 2 successively from top to bottom, and maintenance section 1 is made of silver-colored titanium alloy, close
Section 2 is made of gutta-percha, and 1 lower face of maintenance section, which extends downwardly, to be useful for maintenance section 1,2 combined linkage section of closed section
3, and linkage section 3 is also made of silver-colored titanium alloy, and the scale section 4 for showing gutta-percha point length is equipped in maintenance section upper end；
The component of each element of silver-colored titanium alloy is by mass percentage：K：0.01%, Ca：0.04%, Na：0.02%, Al：
0.03%, Ag：0.15% surplus is Ti and impurity；
The helical blade 5 of the screw type equipped with outwardly convex at linkage section, maintenance section are 2 with closing Length Ratio:1, closing
The length of section is 5mm, and linkage section is 3 with closing Length Ratio:4, gutta-percha point taper is 0.04；
The application method of gutta-percha point clicks step progress：
Step 1：Tooth is cleared up first with dentistry special implement, then according to the quantity of canalis radicis dentis contained in tooth into
Row pulp cavity opens expansion art, and the dental pulp of necrosis is removed, and removes infectious agent with root canal file and root enlargement of pipe matches to gutta-percha point
Size, then gutta-percha point is inserted into canalis radicis dentis and carry out bat X-ray, after result of making film meets the requirements, while recording canalis radicis dentis
The depth of the tip of a root to occlusal surface is H, and maintenance section redundance is cut out, after maintenance section redundance is cut out, remaining gutta-percha
The length of point is L, wherein H-L=2mm, is then placed gutta-percha point in gnotobasis and for use；
Step 2：It carries out disinfection to canalis radicis dentis, then uses temporarily sealing material by the root of the tooth seal of tube, to form enclosed sterile
Cavity is removed the temporarily sealing material on tooth with instrument, after 7 days then with oxpara respectively to root of the tooth tube cavity
For use gutta-percha point surface uniformly smears one layer in surface and step 1, and gutta-percha point is then inserted into canalis radicis dentis inside；
Step 3：After completing step 2, the retention terminal of gutta-percha point is apart from occlusal surface 2mm at this time, then with resin filling material by tooth
Glue point surrounding and the filling of entire defect, wait for that resin filling material solidifies.
Embodiment 2
Maintenance, the integrated gutta-percha point of tip of a root closing in a kind of argentiferous titanium alloy root pipe provided in this embodiment, including shape is circle
The gutta-percha point of taper, gutta-percha point are equipped with maintenance section 1, closed section 2 successively from top to bottom, and maintenance section 1 is made of silver-colored titanium alloy, close
Section 2 is made of gutta-percha, and 1 lower face of maintenance section, which extends downwardly, to be useful for maintenance section 1,2 combined linkage section of closed section
3, and linkage section 3 is also made of silver-colored titanium alloy, and the scale section 4 for showing gutta-percha point length is equipped in maintenance section upper end；
The component of each element of silver-colored titanium alloy is by mass percentage：K：0.03%, Ca：0.06%, Na：0.05%, Al：
0.05%, Ag：0.25% surplus is Ti and impurity；
The helical blade 5 of the screw type equipped with outwardly convex at linkage section, maintenance section are 2 with closing Length Ratio:1, closing
The length of section is 8mm, and linkage section is 3 with closing Length Ratio:5, gutta-percha point taper is 0.06；
The application method of gutta-percha point clicks step progress：
Step 1：Tooth is cleared up first with dentistry special implement, then according to the quantity of canalis radicis dentis contained in tooth into
Row pulp cavity opens expansion art, and the dental pulp of necrosis is removed, and removes infectious agent with root canal file and root enlargement of pipe matches to gutta-percha point
Size, then gutta-percha point is inserted into canalis radicis dentis and carry out bat X-ray, after result of making film meets the requirements, while recording canalis radicis dentis
The depth of the tip of a root to occlusal surface is H, and maintenance section redundance is cut out, after maintenance section redundance is cut out, remaining gutta-percha
The length of point is L, wherein H-L=2mm, is then placed gutta-percha point in gnotobasis and for use；
Step 2：It carries out disinfection to canalis radicis dentis, then uses temporarily sealing material by the root of the tooth seal of tube, to form enclosed sterile
Cavity is removed the temporarily sealing material on tooth with instrument, after 5 days then with oxpara respectively to root of the tooth tube cavity
For use gutta-percha point surface uniformly smears one layer in surface and step 1, and gutta-percha point is then inserted into canalis radicis dentis inside；
Step 3：After completing step 2, the retention terminal of gutta-percha point is apart from occlusal surface 2mm at this time, then with resin filling material by tooth
Glue point surrounding and the filling of entire defect, wait for that resin filling material solidifies.
Embodiment 3
Maintenance, the integrated gutta-percha point of tip of a root closing in a kind of argentiferous titanium alloy root pipe provided in this embodiment, including shape is circle
The gutta-percha point of taper, gutta-percha point are equipped with maintenance section 1, closed section 2 successively from top to bottom, and maintenance section 1 is made of silver-colored titanium alloy, close
Section 2 is made of gutta-percha, and 1 lower face of maintenance section, which extends downwardly, to be useful for maintenance section 1,2 combined linkage section of closed section
3, and linkage section 3 is also made of silver-colored titanium alloy, and the scale section 4 for showing gutta-percha point length is equipped in maintenance section upper end；
The component of each element of silver-colored titanium alloy is by mass percentage：K：0.02%, Ca：0.05%, Na：0.03%, Al：
0.04%, Ag：0.18% surplus is Ti and impurity；
The helical blade 5 of the screw type equipped with outwardly convex at linkage section, maintenance section are 2 with closing Length Ratio:1, closing
The length of section is 10mm, and linkage section is 3 with closing Length Ratio:5, gutta-percha point conicity is 0.08；
The application method of gutta-percha point clicks step progress：
Step 1：Tooth is cleared up first with dentistry special implement, then according to the quantity of canalis radicis dentis contained in tooth into
Row pulp cavity opens expansion art, and the dental pulp of necrosis is removed, and removes infectious agent with root canal file and root enlargement of pipe matches to gutta-percha point
Size, then gutta-percha point is inserted into canalis radicis dentis and carry out bat X-ray, after result of making film meets the requirements, while recording canalis radicis dentis
The depth of the tip of a root to occlusal surface is H, and maintenance section redundance is cut out, after maintenance section redundance is cut out, remaining gutta-percha
The length of point is L, wherein H-L=2mm, is then placed gutta-percha point in gnotobasis and for use；
Step 2：It carries out disinfection to canalis radicis dentis, then uses temporarily sealing material by the root of the tooth seal of tube, to form enclosed sterile
Cavity is removed the temporarily sealing material on tooth with instrument, after 6 days then with oxpara respectively to root of the tooth tube cavity
For use gutta-percha point surface uniformly smears one layer in surface and step 1, and gutta-percha point is then inserted into canalis radicis dentis inside；
Step 3：After completing step 2, the retention terminal of gutta-percha point is apart from occlusal surface 2mm at this time, then with resin filling material by tooth
Glue point surrounding and the filling of entire defect, wait for that resin filling material solidifies.
Above example is directed to the gutta-percha point used in root canal and proposes new structure, and it is close to have the common gutta-percha tip of a root concurrently
The characteristics of closing property is good and metal gutta-percha assists dental body filled material maintenance, have seal is high, safety is good, operability is strong,
The advantages that versatility is good, at low cost, and the service life is longer, fixation.
Above example is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, every
According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within the scope of the present invention
Within.
Claims (7)
1. maintenance, the integrated gutta-percha point of tip of a root closing in a kind of argentiferous titanium alloy root pipe, including shape is conical gutta-percha point,
It is characterized in that：The gutta-percha point is equipped with maintenance section, closed section successively from top to bottom, and the maintenance Duan Youyin titanium alloys are made,
The closed section is made of gutta-percha, and maintenance section lower face, which extends downwardly, to be useful for maintenance section, closed section being combined together
Linkage section, and linkage section is also made of silver-colored titanium alloy, and the quarter for showing gutta-percha point length is equipped in maintenance section upper end
Spend section.
2. maintenance, the integrated gutta-percha point of tip of a root closing, feature exist in argentiferous titanium alloy root pipe according to claim 1
In：The helical blade of the screw type equipped with outwardly convex at the linkage section.
3. maintenance, the integrated gutta-percha point of tip of a root closing, feature exist in argentiferous titanium alloy root pipe according to claim 1
In：The maintenance section is 2 with closing Length Ratio:1.
4. maintenance, the integrated gutta-percha point of tip of a root closing, feature exist in argentiferous titanium alloy root pipe according to claim 1
In：The length of the closed section is 5mm-10mm.
5. maintenance, the integrated gutta-percha point of tip of a root closing, feature exist in argentiferous titanium alloy root pipe according to claim 1
In：The linkage section is 3 with closing Length Ratio:4 or 3:5.
6. maintenance, the integrated gutta-percha point of tip of a root closing, feature exist in argentiferous titanium alloy root pipe according to claim 1
In：The gutta-percha point taper is 0.04 or 0.06 or 0.08.
7. maintenance, the integrated gutta-percha point of tip of a root closing, feature exist in argentiferous titanium alloy root pipe according to claim 1
In：The application method of the gutta-percha point carries out according to the following steps：
Step 1：Tooth is cleared up first with dentistry special implement, then according to the quantity of canalis radicis dentis contained in tooth into
Row pulp cavity opens expansion art, and the dental pulp of necrosis is removed, and removes infectious agent with root canal file and root enlargement of pipe matches to gutta-percha point
Size, then gutta-percha point is inserted into canalis radicis dentis and carry out bat X-ray, after result of making film meets the requirements, while recording canalis radicis dentis
The depth of the tip of a root to occlusal surface is H, and maintenance section redundance is cut out, after maintenance section redundance is cut out, remaining gutta-percha
The length of point is L, wherein H-L=2mm, is then placed gutta-percha point in gnotobasis and for use；
Step 2：It carries out disinfection to canalis radicis dentis, then uses temporarily sealing material by the root of the tooth seal of tube, to form enclosed sterile
Cavity is removed the temporarily sealing material on tooth with instrument, after 5-7 days then with oxpara respectively into canalis radicis dentis
For use gutta-percha point surface uniformly smears one layer in chamber surface and step 1, and gutta-percha point is then inserted into canalis radicis dentis inside；
Step 3：After completing step 2, the retention terminal of gutta-percha point is apart from occlusal surface 2mm at this time, then with resin filling material by tooth
Glue point surrounding and the filling of entire defect, wait for that resin filling material solidifies.
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| CN201810189357.7A CN108354681A (en) | 2018-03-08 | 2018-03-08 | Maintenance, the integrated gutta-percha point of tip of a root closing in a kind of argentiferous titanium alloy root pipe |
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| CN201810189357.7A CN108354681A (en) | 2018-03-08 | 2018-03-08 | Maintenance, the integrated gutta-percha point of tip of a root closing in a kind of argentiferous titanium alloy root pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112754689A (en) * | 2021-01-13 | 2021-05-07 | 深圳和光医用橡胶材料科技有限公司 | Gutta-percha point |
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