CN208114663U - A kind of deformable nickel-titanium instruments - Google Patents
A kind of deformable nickel-titanium instruments Download PDFInfo
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- CN208114663U CN208114663U CN201721572746.5U CN201721572746U CN208114663U CN 208114663 U CN208114663 U CN 208114663U CN 201721572746 U CN201721572746 U CN 201721572746U CN 208114663 U CN208114663 U CN 208114663U
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Abstract
The utility model belongs to oral cavity root canal treatment technical field more particularly to a kind of deformable nickel-titanium instruments, successively includes：Working portion 1, neck 2, shank 3, wherein working portion 1 includes a NiTi pipe, two sides between two side wall longitudinal axis 5 of the axis section of NiTi pipe successively replaces hollow out arrangement M shape wave and the shape of falling M wave along axial direction, it is connected between M shape wave and the shape of falling M wave by connecting line 6, one end of two side wall longitudinal axis 5 is connect with neck 2, the other end is connected with end diamond shape ring 7, and M shape wave and the shape of falling M wave connect the hollow reticular structure that constituted basic unit 4 and side wall longitudinal axis 5, connecting line 6 and end diamond shape ring 7 collectively constitute together.Former root canal anatomic form is adapted in machine and transverse direction, cuts root canal wall surface uniformly, and flat, the irregular root canal of ellipse and root canal gorge area are more effectively cleared up；Instrument can be made not to be kept completely separate, so that the broken ends of fractured bone be avoided to leave caused root canal blocking.
Description
Technical field
The utility model belongs to oral cavity root canal treatment technical field more particularly to a kind of deformable nickel-titanium instruments.
Background technique
Root canal treatment is the most commonly used effective treatment method in the world of dental pulp disease and periapical disease.Root canal treatment (root
Canal therapy) it is to be taken out the dental pulp of inflammation, necrosis or even corruption in canalis radicis dentis by mechanically and chemically method, it carries out
Root canal preparation appropriate, and by root canal filling, closing bizet, prevent periapical lesion or promotes the tip of a root having occurred and that
The healing of all lesions.
Root canal file is the primary operational instrument in root canal preparation, when being used for root canal treatment, cleaning and moulding to root canal.Mesh
Before, root canal file generallys use stainless steel wire or NiTi silk material is process by way of mechanical grinding or distortion.
Stainless steel root canal file is rigidly big, declines rapidly as instrumentation diameters increase flexibility, in preparation crooked root tube, easily
There are the complication such as apical transportation, step, blocking.Nickel-titanium instruments have super-elasticity and antifatigue two major features, in bending root
The incidence of complication can be substantially reduced in pipe preparation.Popularization and application of the nickel-titanium instruments in clinic improve root canal cleaning with
The efficiency of forming, seeming closely sealed filling image on two-dimentional X-ray film makes one to ignore its defect.People are reminded in the introducing of three-dimensional concept
The flaw being hidden under its advantage, especially in preparation flat root canal, the generally existing original form for destroying irregular root canal
And the problems such as leaving the root canal wall not being cleaned and the area Guan Jianxia.Therefore root canal file is not limited in the cylinder of itself, and answers
More it is obedient to the form of root canal itself, reaches three-dimensional perfect preparation.
Utility model content
In response to the above problems, the present invention proposes a kind of deformable nickel-titanium instruments, successively include：Working portion 1,
Neck 2, shank 3, wherein working portion 1 includes a NiTi pipe, between two side wall longitudinal axis 5 of the axis section of NiTi pipe
Two sides successively replaces hollow out arrangement M shape wave and the shape of falling M wave along axial direction, is connected between M shape wave and the shape of falling M wave by connecting line 6, two
One end of root side wall longitudinal axis 5 is connect with neck 2, and the other end is connected with end diamond shape ring 7, and M shape wave connects institute's structure with the shape of falling M wave
At basic unit 4 and the hollow reticular structure that collectively constitutes together of side wall longitudinal axis 5, connecting line 6 and end diamond shape ring 7.
There is prismatic cutting edge on the grid lines of the hollow reticular structure, to expand and modify the shape of root canal.
6 shape of connecting line is the combination of S-shaped or C-shaped or S-shaped and straightway or the combination of C-shaped and straightway.
The connecting line 6 connects the trough of M shape ripple and the wave crest of the shape of falling M wave, or the wave crest and M shape of the connection shape of falling M wave
The trough of ripple.
The end of the working portion 1 is that diamond shape is skewed, in order to which it enters inside root canal.
The beneficial effects of the utility model：Using hollow file made of NiTi pipe, there is superior elasticity, flexibility and suitable
Ying Xing, hollow structure can not only comply with root canal curvature direction in the longitudinal direction, horizontally also adapt to former root canal anatomic form,
It cuts root canal wall surface uniformly, is conducive to the original form for keeping root canal system, to flat, the irregular root canal of ellipse
It is more effectively cleared up with root canal gorge area.In addition, its special design can be such that instrument is not kept completely separate, to avoid
The broken ends of fractured bone leaves caused root canal blocking, substantially increases the usability and safety of root canal file.
Detailed description of the invention
Fig. 1 is the positive structure schematic of the utility model embodiment
Fig. 2 is the side structure schematic diagram of the utility model embodiment
Fig. 3 is the expansion plan view of the utility model embodiment working portion
The M shape ripple struction schematic diagram of Fig. 4 the utility model embodiment
Fig. 5 is the embodiments of the present invention usage state diagram
Wherein, 1- working portion, 2- neck, 3- shank, 4- basic unit, 5- side wall longitudinal axis, 6- connecting line, the end 7-
Diamond shape ring.
Specific embodiment
With reference to the accompanying drawing, it elaborates to embodiment.
Embodiment 1：A kind of deformable root canal file, for using hollow file made of NiTi pipe.Its working portion uses nickel
Titanium shape memory alloy pipe engraves the pipe network structure produced, and is distributed between symmetrical side wall longitudinal axis axially disposed
M shape ripple and the shape of falling M ripple are connected between the trough and wave crest of adjacent corrugations by wiring between C-shaped, and root canal file end is V-shaped,
In order to enter inside root canal.
The root canal file, which can be compressed into easily before any, files the root canal prepared by No. 20 K files or No. 30 K,
File into root canal attempts to restore its original diameter, thus generates a lasting soft pressure to root canal wall；When deeply
After root canal, the root canal file can actively adapt to the form of root canal, either (just as all nickel-titanium files can be accomplished) of longitudinal section
Or cross section.In round root canal, the root canal file can maintain circular cross section；Correspondingly in oval or flat root canal
In, original oval or flat cross section can be maintained, thus accomplishes three-dimensional compliance.On the screw thread grid of the root canal file
There is prismatic cutting edge, this makes it that can remove dentine in the mill of advance and retreat grinds and moves.
The latticed gap of the root canal file and hollow design provide the space for allowing flushing liquor to flow freely, and will not produce
Raw flushing pressure will not release flushing liquor outside apical foramen of tooth the tip of a root is absolutely not closed.
Concrete operation step is as follows：
1, preoperative X-ray film assessment root canal morphology and active length, open wide root canal hat side 1/3；
2,10# or 15# ss K file detects root canal and determines active length；
3, using hand nickel-titanium file 20/0.02 or 20/0.04 preliminary preparation root canal.
4, the deformable nickel-titanium instruments to match with root canal, each root canal preparation 4min, if in preliminary process are selected
Feel that apparent resistance then stops, dredging root canal again；
5, the hand file after the completion of preparation using respective model, which checks whether, reaches prepared requirement, needs if not reaching
Readiness time it will extend 1min.
This embodiment is only the preferable specific embodiment of the utility model, but the protection scope of the utility model not office
It is limited to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with
Subject to scope of protection of the claims.
Claims (5)
1. a kind of deformable nickel-titanium instruments, which is characterized in that successively include：Working portion (1), neck (2), shank (3),
Middle working portion (1) includes a NiTi pipe, and the two sides between two side wall longitudinal axis (5) of the axis section of NiTi pipe is along axial direction
Successively replace hollow out arrangement M shape wave and the shape of falling M wave, connected between M shape wave and the shape of falling M wave by connecting line (6), two side walls are vertical
One end of axis (5) is connect with neck (2), and the other end is connected with end diamond shape ring (7), and M shape wave is connected with the shape of falling M wave and constituted
Basic unit (4) and the hollow netted knot that collectively constitutes together of side wall longitudinal axis (5), connecting line (6) and end diamond shape ring (7)
Structure.
2. root canal file according to claim 1, which is characterized in that have prismatic cutting on the grid lines of the hollow reticular structure
Sword, to expand and modify the shape of root canal.
3. root canal file according to claim 1 or claim 2, which is characterized in that connecting line (6) shape is S-shaped or C-shaped or S-shaped
The combination of combination or C-shaped and straightway with straightway.
4. root canal file according to claim 1 or claim 2, which is characterized in that the trough of the connecting line (6) connection M shape ripple and
The wave crest of the shape of falling M wave, or connect the wave crest of the shape of falling M wave and the trough of M shape ripple.
5. root canal file according to claim 1 or claim 2, which is characterized in that the end of the working portion (1) is diamond shape inclination
Shape, in order to which it enters inside root canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721572746.5U CN208114663U (en) | 2017-11-22 | 2017-11-22 | A kind of deformable nickel-titanium instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721572746.5U CN208114663U (en) | 2017-11-22 | 2017-11-22 | A kind of deformable nickel-titanium instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208114663U true CN208114663U (en) | 2018-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721572746.5U Active CN208114663U (en) | 2017-11-22 | 2017-11-22 | A kind of deformable nickel-titanium instruments |
Country Status (1)
| Country | Link |
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| CN (1) | CN208114663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498187A (en) * | 2018-12-28 | 2019-03-22 | 常州迈帝浦医疗科技有限公司 | Dental root file |
-
2017
- 2017-11-22 CN CN201721572746.5U patent/CN208114663U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498187A (en) * | 2018-12-28 | 2019-03-22 | 常州迈帝浦医疗科技有限公司 | Dental root file |
| CN109498187B (en) * | 2018-12-28 | 2024-02-09 | 常州迈帝浦医疗科技有限公司 | Tooth root file |
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