CN208677610U - Treatment guide plate for root canal treatment - Google Patents
Treatment guide plate for root canal treatment Download PDFInfo
- Publication number
- CN208677610U CN208677610U CN201720679044.0U CN201720679044U CN208677610U CN 208677610 U CN208677610 U CN 208677610U CN 201720679044 U CN201720679044 U CN 201720679044U CN 208677610 U CN208677610 U CN 208677610U
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- tooth
- guide hole
- plywood
- treatment
- root canal
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Abstract
The utility model discloses a kind for the treatment of guide plates for root canal treatment, including plywood, plywood includes and suffers from tooth or suffer from the matched mating surface of tooth crown shape of tooth and neighbouring single part tooth or whole teeth, the guide hole being correspondingly arranged with corresponding root canal is offered on plywood, one end of guide hole is located in mating surface, its Position Design depends on the three-dimensional stress finite element analysis of tooth, avoids the mechanics pit-prop of tooth；When drill point passes through guide hole to suffering from tooth and carrying out out pith cavity, drill point would not destroy the mechanics corbeling for suffering from tooth, protect the resistance structure of tooth, and postoperative tooth is avoided to generate jackknifing when stinging hard object.
Description
Technical field
The utility model relates to oral cavity medical assistance instrument and its preparation technical fields, more specifically, it relates to a kind of
Treatment guide plate for root canal treatment.
Background technique
But tooth has cusp structure, and it is uneven to result in tooth surface boss as mountainous region, and the pulp cavity in tooth is just
It is hollow as the subterranean stream in mountain.The structure of such a inner hollow will go to bear bite force and be unlikely to broken
It splits, needs good mechanics corbeling.
And pulpitis is a kind of disease very common in mouth disease, symptom is mainly spontaneous pain, the reason is that
Because dental pulp, which is infected by bacterial, leads to inflammation, root canal treatment is mostly used clinically to treat pulpitis.Root canal treatment is leading root
Pipe preparation, forming, then sterilized with drug to root canal disinfection, it is finally tight to clog root canal, so that effectively control infection, reparation lack
Damage.
In order to find root canal orifice, there is part operation to be in the prior art: needing to grind tooth and close face part tissue of tooth, exposure
Pulp cavity and root canal orifice out, to be operated under direct-view, grinding for these healthy tissues of tooth may destroy above-mentioned mechanics
Corbeling reduces the resistance structure of tooth, is easy to cause jackknifing of the postoperative tooth when stinging hard object, this clinically when have
Occur.
Moreover, in the prior art, some operation is selected at vertically bores near the tooth surface position of pulp cavity
Hole selects shortest path just as oil drilling, and such operation can equally destroy above-mentioned mechanics pillar, then chewing
When food is withstood forces, such tooth is still easy to sting to split.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of treatments for root canal treatment
Guide plate；It can effectively guarantee that suffering from the mechanics corbeling of tooth after surgery is not destroyed, that is, has ensured the postoperative intensity for suffering from tooth,
It avoids and postoperative suffer from tooth and will not sting and split because of operation.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind for the treatment of guide plate for root canal treatment, including plywood, the plywood include and suffer from tooth or suffer from tooth and neighbouring list
Part tooth or whole tooth the matched mating surface of tooth crown shape, offer on the plywood and be correspondingly arranged with corresponding root canal
Guide hole, one end of the guide hole is through at the mating surface.
It is further arranged to: offering wasteway on the plywood, one end of the wasteway and the corresponding guidance
The runner in hole is connected to, and the other end of the wasteway is located on the plywood on the arbitrary surfaces of the non-mating surface.
It is further arranged to: being offered on the plywood and the one-to-one circular groove of the guide hole, the circular groove and phase
The end for the guide hole answered is in being arranged concentrically, and shape, the size of the circular groove are adapted to dental handpiece first one, the circular groove
Central axis is conllinear with the central axis of the corresponding guide hole, and the radius of the circular groove is greater than the corresponding guide hole far from described
The radius of one end of mating surface.
It is further arranged to: being offered on the plywood surface opposite with the mating surface a pair of with the guide hole one
The bar slot answered, one end in the guide hole far from the mating surface are located at the slot bottom of the corresponding bar slot, the stripe shape
The edge of the plywood is run through in one end of slot.
Be further arranged to: the groove width of the bar slot is equal to the aperture of the guide hole.
Be further arranged to: the thickness of the plywood is set as 4mm, and the diameter of the guide hole is set as 1.5mm.
The preparation method for the treatment of guide plate provided by the utility model for root canal treatment, the preparation step of this method is such as
Under:
S1. preoperative that patient mouthful jaw is carried out carrying out CBCT scanning；
S2. pulp cavity model is marked to the CBCT scanning result of patient mouthful jaw using obtained in Mimics16.0 software S1
It encloses, to obtain final data；
S3. the final data obtained in S2 is rebuild using three-dimensional graph process software to obtain the CT Digital Three-Dimensional of tooth
Model is to get the model for arriving the denture with pulp cavity；
S4. suffer from tooth using optical scanner scanning in dentistry mouth or suffer from tooth and neighbouring single part tooth or whole teeth, system
Make tooth optical digital threedimensional model, or tooth will be suffered from or suffer from tooth and neighbouring single part tooth or whole teeth are first fabricated directly into
Then plaster cast scans plaster cast using dental models optical scanner, then makes tooth optical digital threedimensional model；
S5. the CT digital three-dimemsional model that the denture of pulp cavity will be had obtained in S3 and tooth optics number obtained in S4
Word threedimensional model is virtually registrated, removal with pulp cavity denture model corona surface portion, and with tooth light
It learns digital three-dimemsional model to merge, forms tooth overall digital threedimensional model；
S6. by the tooth overall digital threedimensional model obtained in S5 import finite element analysis software, load vertically to
Pressure obtains No.1 tooth overall digital to obtain and mark stress most concentrated area in tooth overall digital threedimensional model
Change threedimensional model；
S7. use Freeform software on the No.1 tooth overall digital threedimensional model obtained in S6 by root canal center
Line extends to tooth and closes face, marks point on tooth conjunction face, makes this mark point be not at S5 Tooth using Freeform software
Stress most concentrated area in overall digital threedimensional model, the mark point are to open marrow point；
S8. on biteplane, plywood profile is drawn around denture using Freeform software, to open marrow point in S7
For the center of circle, guide hole is drawn on plywood；
S9. overflow pipe is drawn around guide hole using Freeform software, one end of wasteway is drawn with corresponding
The runner of guide hole is connected to, and the other end of wasteway is located on plywood on the arbitrary surfaces of non-mating surface；
S10. one end using guide hole far from mating surface draws circular groove as the center of circle on plywood, and the radius of circular groove, which is greater than, to be drawn
The radius of the end of guide hole, shape, the size of circular groove are adapted to dental handpiece head, and dental handpiece when marrow is opened to supplementary retention
Head；
S11. it to sum up obtains for instructing the minimally invasive digitlization plywood model for opening marrow, and with the preservation of STL format；
S12. rapid shaping technique is used, digitlization guide plate model obtained in S11 is fabricated to entity.
It is further arranged to: the tooth overall digital threedimensional model that S5 is obtained is denoted as model A with stl file preservation.
Be further arranged to: the diameter of the guide hole in S8 is set as 1.5mm.
Be further arranged to: the thickness of the guide plate in S8 is set as 4mm.
The utility model has the following beneficial effects: through the above technical solution；It is provided by the utility model to be used for root canal treatment
Treatment guide plate when in use, firstly, label suffers from maximum weighted position on tooth to form mark point, Position Design is depended on
The three-dimensional stress finite element analysis of tooth, avoids the mechanics pit-prop of tooth；Then, it carries out disinfection and goes out to above-mentioned treatment guide plate
Then bacterium is cooperated using the mating surface on treatment guide plate with corresponding corona the treatment guide plate is installed on corresponding corona
Place, at this point, the end and the mark point that are located in mating surface in guide hole do not have intersection, i.e. guide hole along its length
Extend, will not all there is the part of intersection with mark point；The root canal orifice known according to tooth overall digital threedimensional model to tooth closes
Identity distance from and corresponding guide hole length, which is added with the length to obtain the total length of inserting needle, inserting needle is set
Then drill point in drill point machine is closed face with tooth after corresponding guide hole and abutted by total length, then start drill point realization pair
Morsal brill mill, while dental handpiece head cooling water is sprayed to tooth through corresponding guide hole and closes face, when reaching the total of inserting needle
After length, that is, reaches and opened marrow depth, then extracted drill point out；Finally, reusing the expansion in root canal treatment or file, pass through corresponding
Guide hole is downwardly into root canal orifice to carry out root canal treatment；Pass through mark point, so that it may guarantee that guide hole prolongs along its length
It is long, will not all there be the part of intersection with mark point, in this way, drill point is just when drill point passes through guide hole to suffering from tooth and carrying out out pith cavity
The mechanics corbeling for suffering from tooth will not be destroyed, the resistance structure of tooth is protected, postoperative tooth is avoided to generate folding when stinging hard object
It splits.
Preparation method according to the treatment guide plate for root canal treatment provided in the utility model is simply mature, is easy to push away
Extensively, and prepared treatment guide plate effectively avoids the mechanics corbeling for destroying and suffering from tooth, and postoperative tooth is avoided to sting hard object
When generate jackknifing.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the three dimensional structure diagram of the utility model；
Fig. 2 is the top view of the treatment guide plate of the utility model；
Fig. 3 is the structural schematic diagram of corona.
In figure: 01, plywood；011, mating surface；02, guide hole；021, circular groove；022, bar slot；03, wasteway；04,
Corona；05, connecting pipe.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Embodiment 1:
According to Fig. 1 to Fig. 3 it is found that a kind for the treatment of guide plate for root canal treatment, including plywood 01, plywood 01 include with
Suffer from tooth or suffer from the matched mating surface 011 of 04 shape of corona of tooth and neighbouring single part tooth or whole teeth, i.e., mating surface 011 with
Suffer from tooth or suffer from 04 shape adaptation of corona of tooth and neighbouring single part tooth or whole teeth, is offered and corresponding root on plywood 01
The guide hole 02 that pipe is correspondingly arranged, one end of guide hole 02 are through at the mating surface 011.
In use, firstly, label suffers from the maximum weighted position on tooth to form mark point；Then, above-mentioned treatment is led
Plate carries out disinfection sterilizing, then using mating surface 011 and the cooperation of corresponding corona 04 on treatment guide plate with by the treatment guide plate
It is installed at corresponding corona 04, at this point, the end being located in mating surface 011 in guide hole 02 is not intersected with the mark point
Part, i.e. guide hole 02 extend along its length, will not all there is the part of intersection with mark point；According to tooth overall digital
The root canal orifice that threedimensional model is known to tooth close identity distance from and corresponding guide hole 02 length, which is added with the length with
Obtain the total length of inserting needle, set the total length of inserting needle, then by the drill point in drill point machine pass through corresponding guide hole 02 after with
Tooth closes face and abuts, and then starts drill point and realizes to morsal brill mill, while dental handpiece head cooling water is through corresponding guidance
Hole 02 is sprayed to tooth conjunction face and has reached after reaching the total length of inserting needle and opened marrow depth, then extracted drill point out；Finally, making again
With in root canal treatment expansion or file, be downwardly into root canal orifice across corresponding guide hole 02 to carry out root canal treatment；Pass through label
Point, so that it may guarantee that guide hole 02 extends along its length, all will not have the part of intersection with mark point, in this way, working as drill point
When suffering from tooth across 02 pair of guide hole and carrying out out pith cavity, drill point would not destroy the mechanics corbeling for suffering from tooth, protect tooth
Resistance structure avoids postoperative tooth from generating jackknifing when stinging hard object.
Optimization, the thickness of plywood 01 is set as 4mm, and the diameter of guide hole 02 is set as 1.5mm.
Embodiment 2:
Given by the present embodiment 2 for root canal treatment treatment guide plate the difference from embodiment 1 is that: opened on plywood 01
Equipped with wasteway 03, in the present embodiment, by Fig. 1 to 2 it is found that wasteway 03 is set as two, and between existing between wasteway 03
Gap, moreover, one end of wasteway 03 is connected to the runner of corresponding guide hole 02, the other end of wasteway 03 is located at plywood 01
On the arbitrary surfaces of upper non-mating surface 011；Because dental handpiece head cooling water is saturating when drill point carries out out pith cavity on suffering from tooth
It crosses corresponding guide hole 02 and is sprayed to tooth and close face, these cooling waters are for cleaning the clast generated when opening pith cavity, and wasteway 03
Presence, allow for these clasts under the flushing of cooling water, along the length direction reverse flow of corresponding guide hole 02, work as band
There is the flow of cooling water of clast to guide hole 02 and 03 connectivity part of wasteway, because the pressure of wasteway 03 is main less than guide hole 02
In pressure, therefore these will be flowed out with cooling waters of clast from wasteway 03, in this way, facilitate the timely discharge of clast,
It avoids inflow root canal from having an adverse effect patient, certainly, also avoids clast root canal treatment and generate obstruction to generate unfavorable shadow
It rings, but also clast will not generate obstruction to the work for opening pith cavity of drill point.
In addition, in the present embodiment, wasteway 03 can also carry out arranged below as shown in Figure 1: one end position of wasteway 03
In on the arbitrary surfaces of the non-mating surface 011 on plywood 01, the other end of wasteway 03 is located in mating surface 011, in this way, overflow
Road 03 is connected to corresponding guide hole 02 by connecting pipe 05, and connecting pipe 05 is located inside plywood 01；In this way, boring overflow
When road 03, it need to only guarantee that wasteway 03 passes through mating surface 011 directly to drill plywood 01, without guaranteeing wasteway 03
Intersect the connection to realize wasteway 03 Yu guide hole 02 with guide hole 02, facilitate simplified wasteway 03 drills through work.
In addition, for convenience of the installation of dental handpiece head, therefore in the present embodiment, it carries out arranged below: being opened up on plywood 01
Have with the one-to-one circular groove 021 of guide hole 02, circular groove 021 and the end of corresponding guide hole 02 are in being arranged concentrically, circular groove 021
Central axis it is conllinear with the central axis of corresponding guide hole 02, the radius of circular groove 021 is greater than respective guide hole 02 far from mating surface
The radius of 011 one end offers circular hole at the center of circular groove 021, which is overlapped with one end of guide hole 02, and shape
Shape, size are consistent, and circular hole and circular groove 021 constitute concentric arrays；Wherein, the shape, size and dental handpiece head of circular groove 021
It is adapted to one by one, by circular groove 021, so that it may assist dental handpiece head to fix, to make dental handpiece head firm；Moreover, suffering from
When person treats, lips are needed, upper and lower backteeth is apart from limited, and the distance of backteeth is generally 1.5cm up and down when dehiscing, and one
There are the patients of temporomandibular joint disease a bit, dehisces to be that the distance of upper and lower backteeth is even less than 1.5cm, such distance is less than dentistry
The height of hand machine head；And the setting of circular groove 021 belongs to the design of sagging property, one side can play stable maintenance dental handpiece head
Effect can suitably reduce the operation height of dental handpiece head on the other hand for the too small patient of mouth opening, i.e., mouth opening compared with
Hour, allow dental handpiece head to be moved to circular groove 021.
Embodiment 3:
Difference and the present embodiment 3 and the difference of embodiment 2 of the present embodiment 3 with embodiment 1 are: plywood 01 with it is described
Offered on the opposite surface of mating surface 011 with the one-to-one bar slot 022 of guide hole 02, if it is plywood that mating surface, which is 011,
01 lower surface, then bar slot 022 is located at the upper surface of plywood 01；Then one end in guide hole 02 far from mating surface 011 is located at
The edge of plywood 01 is run through in the slot bottom of corresponding bar slot 022, one end of bar slot 022；It is above-mentioned in progress by bar slot
When operation, drill point and dental handpiece head can slide into circular groove 021 by the side of bar slot plywood 01, maintenance be realized, to that
The too small patient of a little mouth openings, the design that this side slides into also can suitably reduce the operation height of dental handpiece head, that is, open
When mouth degree is smaller, dental handpiece head is allowed to be moved to circular groove 021.
Optimization, the groove width of bar slot is equal to the aperture of guide hole 02；In this way, utilizing the mobile dental handpiece head of bar slot
When, it ensure that the moving direction of pressure hand hand machine head, because the side wall of bar slot has determined movement routine and the side of pressure hand hand machine head
To.
Embodiment 4:
The treatment guide plate for root canal treatment of above embodiments 1 to embodiment 3 is obtained by preparation method below,
Specifically, the preparation step of this method is as follows:
S1. preoperative that patient mouthful jaw is carried out carrying out CBCT scanning；
S2. pulp cavity model is marked to the CBCT scanning result of patient mouthful jaw using obtained in Mimics16.0 software S1
It encloses, to obtain final data；
S3. the final data obtained in S2 is rebuild using three-dimensional graph process software to obtain the CT Digital Three-Dimensional of tooth
Model is to get the model for arriving the denture with pulp cavity；
S4. suffer from tooth using optical scanner scanning in dentistry mouth or suffer from tooth and neighbouring single part tooth or whole teeth, system
Make tooth optical digital threedimensional model, or tooth will be suffered from or suffer from tooth and neighbouring single part tooth or whole teeth are first fabricated directly into
Then plaster cast scans plaster cast using dental models optical scanner, then makes tooth optical digital threedimensional model；
S5. the CT digital three-dimemsional model that the denture of pulp cavity will be had obtained in S3 and tooth optics number obtained in S4
Word threedimensional model is virtually registrated, the surface portion of the corona 04 of the model of denture of the removal with pulp cavity, and and tooth
Optical digital threedimensional model merges, and forms tooth overall digital threedimensional model；The step for passing through, so that it may obtain accurate
04 model of corona, so as to the accurate production of the mating surface 011 on plywood 01.
S6. by the tooth overall digital threedimensional model obtained in S5 import finite element analysis software, load vertically to
Pressure obtains No.1 tooth overall digital to obtain and mark stress most concentrated area in tooth overall digital threedimensional model
Change threedimensional model；
S7. use Freeform software on the No.1 tooth overall digital threedimensional model obtained in S6 by root canal center
Line extends to tooth and closes face, marks point on tooth conjunction face, makes this mark point be not at S5 Tooth using Freeform software
Stress most concentrated area in overall digital threedimensional model, the mark point are to open marrow point；It is the drilling for avoiding drill point in operation
Path avoids the mark point, so that it may which the mechanics corbeling for avoiding damage to suffer from tooth is kept away to protect the resistance structure of tooth
Exempt from postoperative tooth and generates jackknifing when stinging hard object.
S8. on biteplane, 01 profile of plywood is drawn around denture using Freeform software, with opening in S7
Marrow point is the center of circle, and guide hole 02 is drawn on plywood 01；
S9. overflow pipe is drawn around guide hole 02 using Freeform software, one end of wasteway 03 and corresponding
Guide hole 02 runner connection, the other end of wasteway 03 is located on plywood 01 on the arbitrary surfaces of non-mating surface 011；?
In this step, wasteway 03 can also carry out arranged below as shown in Figure 1: one end of wasteway 03 is located at the non-cooperation on plywood 01
On the arbitrary surfaces in face 011, the other end of wasteway 03 is located in mating surface 011, in this way, wasteway 03 and corresponding guide hole
02 is connected to by connecting pipe 05, and connecting pipe 05 is located inside plywood 01；In this way, only need to guarantee to overflow when boring wasteway 03
Runner 03, directly to drill plywood 01, intersects by mating surface 011 without guarantee wasteway 03 with guide hole 02 with reality
The connection of existing wasteway 03 and guide hole 02, facilitate simplified wasteway 03 drills through work.
S10. one end using guide hole 02 far from mating surface 011 draws circular groove 021, circular groove 021 as the center of circle on plywood 01
Radius be greater than guide hole 02 end radius, shape, the size of circular groove 021 be adapted to dental handpiece head, consolidates to assist
Open dental handpiece head when marrow in position；
S11. it to sum up obtains for instructing minimally invasive 01 model of digitlization plywood for opening marrow, and with the preservation of STL format；
S12. rapid shaping technique is used, digitlization guide plate model obtained in S11 is fabricated to entity.
In addition, the tooth overall digital threedimensional model that S5 is obtained is denoted as model A with stl file preservation, in this way, helping
In the secondary production and calibration of model.
Moreover, the diameter of the guide hole 02 in S8 is set as 1.5mm；The thickness of guide plate in S8 is set as 4mm.
More than, only specific embodiment of the present utility model, but protection scope of the utility model is not limited thereto,
Anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation or replace
It changes, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with claim
Subject to protection scope.
Claims (5)
1. a kind for the treatment of guide plate for root canal treatment, it is characterized in that: including plywood (01), the plywood (01) includes and suffers from tooth
Or suffer from the matched mating surface of corona (04) shape (011) of tooth and neighbouring single part tooth or whole teeth, the plywood (01)
On offer the guide hole (02) being correspondingly arranged with corresponding root canal, one end of the guide hole (02) is through to the mating surface
(011) at；It is offered wasteway (03) on the plywood (01), one end of the wasteway (03) and the corresponding guide hole
(02) runner connection, the other end of the wasteway (03) are located at times of the non-mating surface (011) on the plywood (01)
On expectation face.
2. the treatment guide plate according to claim 1 for root canal treatment, it is characterized in that: the plywood (01) is matched with described
It is offered on the opposite surface in conjunction face (011) and the one-to-one circular groove (021) of the guide hole (02), the circular groove (021)
With the end of corresponding guide hole (02) in being arranged concentrically, shape, size and the dental handpiece first one of the circular groove (021) are suitable
To match, the central axis of the circular groove (021) is conllinear with the central axis of the corresponding guide hole (02), and the half of the circular groove (021)
Diameter is greater than the radius of the corresponding one end of the guide hole (02) far from the mating surface (011).
3. the treatment guide plate according to any one of claim 1 to 2 for root canal treatment, it is characterized in that: the plywood
(01) surface offer with the one-to-one bar slot (022) of the guide hole (02), far from institute in the guide hole (02)
The one end for stating mating surface (011) is located at the slot bottom of the corresponding bar slot (022), and institute is run through in one end of the bar slot (022)
State the edge of plywood (01).
4. the treatment guide plate according to claim 3 for root canal treatment, it is characterized in that: the slot of the bar slot (022)
Width is equal to the aperture of the guide hole (02).
5. the treatment guide plate according to claim 3 for root canal treatment, it is characterized in that: the thickness of the plywood (01) is set
Diameter for 4mm, the guide hole (02) is set as 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720679044.0U CN208677610U (en) | 2017-06-12 | 2017-06-12 | Treatment guide plate for root canal treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720679044.0U CN208677610U (en) | 2017-06-12 | 2017-06-12 | Treatment guide plate for root canal treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208677610U true CN208677610U (en) | 2019-04-02 |
Family
ID=65874301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720679044.0U Expired - Fee Related CN208677610U (en) | 2017-06-12 | 2017-06-12 | Treatment guide plate for root canal treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208677610U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049527A (en) * | 2017-06-12 | 2017-08-18 | 四川大学 | Treatment guide plate for root canal and preparation method thereof |
| CN114601575A (en) * | 2022-04-14 | 2022-06-10 | 中国人民解放军总医院第一医学中心 | Positioning dredging guide kit for calcified root canal |
-
2017
- 2017-06-12 CN CN201720679044.0U patent/CN208677610U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049527A (en) * | 2017-06-12 | 2017-08-18 | 四川大学 | Treatment guide plate for root canal and preparation method thereof |
| CN114601575A (en) * | 2022-04-14 | 2022-06-10 | 中国人民解放军总医院第一医学中心 | Positioning dredging guide kit for calcified root canal |
| CN114601575B (en) * | 2022-04-14 | 2024-01-30 | 中国人民解放军总医院第一医学中心 | Positioning dredging guiding sleeve for calcified root canal |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20190402 |