CN103845127A - Tooth root embedding and cross section cutting die and method - Google Patents
Tooth root embedding and cross section cutting die and method Download PDFInfo
- Publication number
- CN103845127A CN103845127A CN201410072666.8A CN201410072666A CN103845127A CN 103845127 A CN103845127 A CN 103845127A CN 201410072666 A CN201410072666 A CN 201410072666A CN 103845127 A CN103845127 A CN 103845127A
- Authority
- CN
- China
- Prior art keywords
- root
- tooth
- cross
- embedding
- alcove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a tooth root embedding and cross section cutting die. The tooth root embedding and cross section cutting die comprises a tooth root embedding die and a cross section cutting die; tooth root embedding concave chambers are formed in the tooth root embedding die; the inner surfaces of a pair of sidewalls of each of the tooth root embedding concave chambers are both in a shape of sawteeth, and the rest inner surfaces are flat surfaces; the sidewall of one tooth root embedding concave chamber of which the inner surface is the flat surface is a detachable block; cross section cutting concave chambers with the same shape and dimension as those of the tooth root embedding concave chambers are formed in the cross section cutting die; concave grooves are formed in the root parts of the inner sawtooth-shaped sidewalls of the cross section cutting concave chambers; the concave grooves are as deep as the cross section cutting concave chambers. The invention also discloses a tooth root embedding and cross section cutting method.
Description
Technical field
The present invention relates to a kind of root of the tooth embedding and cross-section cutting die, also relate to a kind of root of the tooth embedding and intersection segmentation method.
Background technology
Good root canal preparation is the successful prerequisite of root canal.Root canal preparation comprises cleaning, shaping and the large step of flushing three of root pipe.Root pipe forming requirements is not changing on the basis of the original form of main root pipe, be formed with the form of certain taper, smooth smoothness, promoting cleaning effect and be easy to carry out next step root-canal filling, is therefore the importance of evaluate root governance therapeutic effect to the paired observation of root canal preparation apparatus shaping effect.
The observation that root canal preparation is embarked on journey has micro-Microscopic observation, common X sheet method, the cross-section system of Bramant and improving one's methods, silicone rubber impression method, magnetic resonance microscopy (magnetic resonance microscopy, and the means such as aobvious micro CT (micro-computed tomography, μ CT) MRM).Front 4 kinds of methods are relatively simple.μ CT, MRM can directly utilize equipment bundled software systematic analysis image index, also can be according to three-dimensional reconstruction root pipe image, but its equipment volume is huge, experimental expenses costliness, and current domestic use is less.
By cross-section root of the tooth after treatment, can be observed the form of root canal cross-section, compared with micro-Microscopic observation, common X sheet method is a kind of well supplementary.The stereomicroscope hypograph of root pipe section, root tube model photo, X-ray film are inputted computer through scanner or camera head, form digitized image, then by image processing software, image is carried out processing and the mathematics model analysis such as contrast, brightness, edge enhancing, root canal preparation apparatus that can be more dissimilar and root canal preparation maneuver keep the ability of primitive root pipe conduct.
Bramante in 1987 etc. set up first and observe the study model that root canal preparation front and back root canal cross-section changes.This model, by plaster model, carries out embedding cutting to root of the tooth and achieves the goal.Campos etc. make improvements this model with priorities such as Michael, change original plaster model into pyrite and increase embeded slot being beneficial to closely sealed.The Endodontics Cube pyrite assembling die of the developments such as calendar year 2001 Kuttler makes the position of root canal preparation front and back embedded block more stable, but assembly is more, reuses at every turn and all needs dismounting.
Simultaneously, the experimentation analysis of Chris etc., because above-mentioned cross-section method is cut off exist (about the 0.3mm) of root of the tooth saw thickness, therefore must cause part tissue of tooth loses, resin mass may form step to being combined in root knee, affect root pipe seriality, experiment shows that NiTi apparatus is difficult for carrying out root canal preparation by step.In addition, the inventor finds, the forfeiture of tissue of tooth when cutting can cause the fast variation of root canal working length when involutory of resin, causes the operational deviation of root canal preparation.
The cross-section method that at present, can solve root structures, length variations there is not yet research and report.Therefore, need to develop new apparatus and technological means, guarantee to cut the stable of rear root of the tooth sample position, in full accord before the anatomical position of root pipe continuity and preparation, guarantee that various apparatuses can, smoothly continuously by the root pipe of cross sections, maintain the active length of root pipe simultaneously.
Summary of the invention
The object of this invention is to provide the root of the tooth imbedded mold of a kind of embedding, cross-section in vitro natural teeth, set up the mould of isolated tooth root pipe section Slicing Model for Foreign, and relevant art method is provided, be conducive to make cutting and crystallized ability to various root canal therapy device root canal preparations to be studied.
The present invention is as follows for solving the problems of the technologies described above adopted technical scheme:
A kind of root of the tooth embedding and cross-section cutting die, comprise root of the tooth imbedded mold and cross-section cutting die;
In described root of the tooth imbedded mold, be provided with root of the tooth embedding alcove, the pair of sidewalls inner surface of described root of the tooth embedding alcove is zigzag, and all the other inner surfacies are plane; Described inner surface is that the sidewall of a root of the tooth embedding alcove of plane is detachable piece;
In described cross-section cutting die, be provided with and aforementioned root of the tooth embedding alcove shape, the identical cross-section cutting alcove of size, the tooth root place of the indented sidewall in described cross-section cutting alcove is equipped with groove; The degree of depth of described groove equals the degree of depth of cross-section cutting alcove.
In root of the tooth imbedded mold of the present invention, be provided with root of the tooth embedding alcove for placing root of the tooth sample, hold investment and limit the shape after the embedding of root of the tooth sample.The pair of sidewalls inner surface of root of the tooth embedding alcove is zigzag, and jagged edge is conducive to the location of cross-section rear root of the tooth sample and maintains form, length.Root of the tooth embedding alcove one side is a detachable piece, shares one side with alcove.After detachable piece is pulled down, can expose root of the tooth sample root canal orifice through embedding, cutting to complete root canal preparation experiment, also facilitate the taking-up of root of the tooth sample after embedding.
The cross-section cutting alcove being provided with in cross-section cutting die of the present invention for place into the root of the tooth sample of embedding, and by cutting tool, root of the tooth sample is cut, so that observe the shape of cross section of root of the tooth.Root of the tooth sample through embedding is transferred to cross-section cutting die from root of the tooth imbedded mold, after fixing, can use cutting tool to do cross-section cutting process with bench vice.
The present invention is further preferred, and the degree of depth of the embedding of root of the tooth described in the present invention alcove equals the half of the height of root of the tooth imbedded mold.
The present invention is further preferred, and root of the tooth embedding alcove of the present invention is square.The present invention is low from processing cost, and the simple angle of manufacturing process is set out, and the present invention is arranged to root of the tooth embedding alcove square, avoids causing the waste of resource, reaches energy-conservation object.
The width of groove of the present invention is 0.3 ± 0.02mm.The width of groove of the present invention must be thick identical with the sword of cutting tool.Apply time of the present invention, can be according to practical situation, select applicable cutting tool.When Mold Making, recess width must be coincide with cutting edge sword is thick.
The invention also discloses a kind of root of the tooth embedding and cross-section cutting die of adopting root of the tooth sample is carried out to root of the tooth embedding and intersection segmentation method, root of the tooth embedding of the present invention and intersection segmentation method, comprise the following steps:
1) choose root of the tooth sample, to the processing of dyeing of root of the tooth sample;
2) the root of the tooth embedding alcove inner surface in root of the tooth imbedded mold is smeared to separating medium;
3) the root of the tooth sample described in step 1 is put into the root of the tooth embedding alcove described in step 2, in the space between root of the tooth sample and root of the tooth embedding alcove (1), injected dentistry self-curing resin, carry out the embedding of root of the tooth sample;
4) treat in step 3, after dentistry self-curing resin solidifies, the detachable piece in dismounting root of the tooth imbedded mold, takes out the root of the tooth sample after embedding;
5) the root of the tooth sample in step 4 is put into the cross-section cutting alcove of cross-section cutting die;
6) adopt cutting tool to cut root of the tooth sample along the groove on cross-section cutting die;
7) take out the root of the tooth sample of one one after step 6 is cut, analyze, and record its fine structure and form;
8) the root of the tooth sample of one one in step 7 is placed in root of the tooth embedding alcove, forms an entirety.
Before embedding in the embedding of root of the tooth described in the present invention and intersection segmentation method the 1st step, the processing of can dyeing of all root of the tooth samples, after its objective is that root of the tooth is cross-section by embedding, operator can clearly distinguish the appearance profile of root of the tooth section and root pipe section.Can, by the 10s that dyes in root of the tooth sample immersion methylene blue injection, dye.Methylene blue injection of the present invention is application and the methylene blue injection of dentistry aspect in prior art, and its concrete composition the present invention is not described in detail.
Before embedding in the embedding of root of the tooth described in the present invention and intersection segmentation method the 2nd step, evenly smear separating medium at the root of the tooth embedding alcove inner surface of root of the tooth imbedded mold, root of the tooth embedded block is convenient in demoulding.Described separating medium is application and the separating medium of dentistry aspect in prior art, and its concrete composition the present invention is not described in detail.
In the embedding of root of the tooth described in the present invention and intersection segmentation method the 3rd step, described dentistry self-curing resin adopts application in prior art to carry out embedding with the methyl methacrylate class of dentistry aspect, is not described in detail for concrete composition the present invention of methyl methacrylate class.
The present invention's advantage compared with prior art:
1, the present invention is by root of the tooth imbedded mold, the zigzag of alcove uniqueness design in cross-section cutting die, compared with existing technological means and equipment, can maintain better the form of the rear root of the tooth sample of embedding cutting, prevent that root knee from occurring that step causes apparatus cannot pass through phenomenon, kept well the length of roots of the tooth before and after cutting simultaneously, be conducive to researcher root canal therapy device crystallized ability is carried out more deep, research accurately.
2, according to expection object, the root of the tooth sample resin mass in the present invention after embedding can facilitate puts into cross-section cutting die closely sealedly; And the resin sheet after cross-section cutting can successfully be put into imbedded mold by original order again, and the concordance that can keep the cross-section front and back of root of the tooth to dissect, can complete the preparatory function to isolated tooth root.
Accompanying drawing explanation
Fig. 1 is the front view of root of the tooth imbedded mold.
Fig. 2 is the axonometric chart of root of the tooth imbedded mold.
Fig. 3 is the front view of cross-section cutting die.
Fig. 4 is the axonometric chart of cross-section cutting die.
Wherein, 1 is root of the tooth embedding alcove, and 3 is detachable piece, and 4 is cross-section cutting alcove, and 5 is groove.
The specific embodiment
For content of the present invention is become apparent more, be further described below in conjunction with accompanying drawing 1-Fig. 4 and the specific embodiment.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
A kind of root of the tooth embedding and cross-section cutting die, comprise root of the tooth imbedded mold and cross-section cutting die;
In described root of the tooth imbedded mold, be provided with root of the tooth embedding alcove 1, the pair of sidewalls inner surface of described root of the tooth embedding alcove 1 is zigzag, and all the other inner surfacies are plane; Described inner surface is that the sidewall of a root of the tooth embedding alcove 1 of plane is detachable piece 3;
In described cross-section cutting die, be provided with and aforementioned root of the tooth embedding alcove 1 shape, the identical cross-section cutting alcove 4 of size, the tooth root place of the indented sidewall in described cross-section cutting alcove 4 is equipped with groove 5; The degree of depth of described groove 5 equals the degree of depth of cross-section cutting alcove 4.
Apply time of the present invention, can be according to practical situation, select applicable cutting tool.When Mold Making, recess width must be coincide with cutting edge sword is thick.
Root of the tooth sample through embedding is transferred to cross-section cutting die from root of the tooth imbedded mold, after fixing, can use cutting tool to do cross-section cutting process with bench vice.After cutting, the thickness of every cross-section root of the tooth is 2.0mm.
Illustrate content of the present invention with embodiment below, the invention is not restricted to this embodiment, can press the different suitably adjustment of practical situation to content disclosed in this specification, implemented.In the present embodiment, use the present invention to carry out the morphology research that different root canal appliances prepare in vitro posterior teeth root canal.
Root of the tooth imbedded mold and cross-section cutting die described in the present embodiment all have by Precision Machining and cast, and root of the tooth imbedded mold is of a size of 30mm × 30mm × 30mm.Root of the tooth embedding alcove 1 for there being the square root of the tooth embedding alcove 1 of parallel, the another two opposite side zigzag symmetries of two opposite side on it, the length of side is 15mm, for placing root of the tooth sample, sample shape after holding investment and limiting embedding.Jagged edge is conducive to the location of cross-section rear root of the tooth sample and maintains form, length.Alcove one side is a detachable part 3, and it is shaped as cuboid, is specifically of a size of 30mm × 7.5mm × 15mm, shares one side with alcove.After cuboid detachable part 3 is pulled down, can expose through the root of the tooth sample root canal orifice of embedding, cutting to complete root canal preparation experiment, also facilitate the taking-up of root of the tooth sample after embedding.
Cross-section cutting die size is 30mm × 30mm × 30mm, has same shape, size on one and root of the tooth imbedded mold, the cross-section cutting recessed 4 at same saw tooth shape edge on cross-section cutting die.At the recessed 4 jagged edges places, both sides of cross-section cutting, there is several groove 5 that interval is even, the degree of depth is consistent, groove 5 is the track of the cross-section root of the tooth of cutting tool, its width is thick with the sword of cutting tool.
Root of the tooth embedding and intersection segmentation method are:
Preparation: collect the Isolated Tooth of sufficiently complete, need cleaning-sterilizing, be immersed in hydrogenperoxide steam generator, cold preservation is for subsequent use.On head at a slow speed, connect carborundum disc all Isolated Tooths are cut to root processing, choose in upper and lower backteeth near buccal root as the candidate samples of root of the tooth sample.Candidate samples is inserted to 10# file, and plasticine is fixed, and dentistry digital imaging system (Dentsply, Italy) multi-angle is clapped X-ray film, and embedded software is measured root canal curvature degree.Sample is by the random average packet of different root canal preparation apparatuses.
Before embedding, all root of the tooth samples are immersed to dyeing 10s in methylene blue injection (Jiangsu JumpCan Medicines Co., Ltd., Taixing), so that cross-section rear operator distinguishes the appearance profile of root of the tooth section and root pipe section.Inner surface at metal imbedded mold is evenly smeared separating medium, and root of the tooth embedded block is convenient in demoulding.Dentistry self-curing resin embedding for root of the tooth.Before embedding, after the hardening of resin demoulding, embedded block is transferred to cross-section cutting die.
The root of the tooth of embedding is placed in mould, fixing with bench vice (brave power board, China) after, use Mini SAW(tri-wooden chemistry Industrial Co., Ltd, Japan) do cross-section cutting process.After cutting, the thickness of every cross-section root of the tooth is 2.0mm.
Root of the tooth embedded block is by after cross-section, and we can roughly observe the shape of cross section of root of the tooth root pipe.All samples can be placed under optical microscope (Olympus BX41, Japan) and observe, better to record its fine structure and form.Under 40 times of visuals field, can clearly observe the details form of root canal cross-section.Digital camera (Nikon 4500, Japan) microspur (2cm) is taken and is recorded complete root canal cross-section.
After morphology has been recorded before preparation, the root of the tooth after cross-section cutting is put into supporting root canal preparation mould by former orderliness, to keep its anatomic form and cross-section front concordance, guarantee completing smoothly of preparation.
Use different root canal preparation apparatuses by Standard Operating Procedure, respectively each group of root of the tooth carried out to root canal preparation.Sample after having prepared can be observed with optical microscope again, uses digital camera microshot to record form.According to the microrecording of root canal cross-section form before and after root canal preparation, can be to the analysis of making an appraisal of the preparation effect of different apparatuses.Whether have the bad forms such as step formation, the skew of root pipe, root pipe bend, the tip of a root pull open, side is worn except observing accurately, also can be by morphologic comparison before and after preparation, analyze different apparatuses preparation root Guan Shigen and manage the Morphological Features of each section.
After observation finishes, the root of the tooth sample of one one after cross-section cutting is placed in root of the tooth embedding alcove 1, forms an entirety.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Part that the present invention does not relate to all same as the prior art or employing prior art is realized.
Claims (5)
1. root of the tooth embedding and a cross-section cutting die, is characterized in that, comprises root of the tooth imbedded mold and cross-section cutting die;
In described root of the tooth imbedded mold, be provided with root of the tooth embedding alcove (1), the pair of sidewalls inner surface of described root of the tooth embedding alcove (1) is zigzag, and all the other inner surfacies are plane; Described inner surface is that the sidewall of a root of the tooth embedding alcove (1) of plane is detachable piece (3);
In described cross-section cutting die, be provided with and aforementioned root of the tooth embedding alcove (1) shape, the identical cross-section cutting alcove of size (4), the tooth root place of the indented sidewall in described cross-section cutting alcove (4) is equipped with groove (5); The degree of depth of described groove (5) equals the degree of depth of cross-section cutting alcove (4).
2. root of the tooth embedding as claimed in claim 1 and cross-section cutting die, is characterized in that, the degree of depth of described root of the tooth embedding alcove (1) equals the half of the height of root of the tooth imbedded mold.
3. root of the tooth embedding as claimed in claim 1 and cross-section cutting die, is characterized in that, described root of the tooth embedding alcove (1) is square.
4. root of the tooth embedding as claimed in claim 1 and cross-section cutting die, is characterized in that, the width of described groove (5) is 0.3 ± 0.02mm.
5. utilization, if claim 1 is to the root of the tooth as described in claim 4 any one and an intersection segmentation method, is characterized in that: comprise the following steps:
1) choose root of the tooth sample, to the processing of dyeing of root of the tooth sample;
2) root of the tooth embedding alcove (1) inner surface in root of the tooth imbedded mold is smeared to separating medium;
3) the root of the tooth sample described in step 1 is put into the root of the tooth embedding alcove (1) described in step 2, in the space between root of the tooth sample and root of the tooth embedding alcove (1), injected dentistry self-curing resin, carry out the embedding of root of the tooth sample;
4) treat in step 3, after dentistry self-curing resin solidifies, the detachable piece (3) in dismounting root of the tooth imbedded mold, takes out the root of the tooth sample after embedding;
5) the root of the tooth sample in step 4 is put into the cross-section cutting alcove (4) of cross-section cutting die;
6) adopt cutting tool to cut root of the tooth sample along the groove (5) on cross-section cutting die;
7) take out the root of the tooth sample of one one after step 6 is cut, analyze, and record its fine structure and form;
8) the root of the tooth sample of one one in step 7 is placed in root of the tooth embedding alcove (1), forms an entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072666.8A CN103845127A (en) | 2014-02-28 | 2014-02-28 | Tooth root embedding and cross section cutting die and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072666.8A CN103845127A (en) | 2014-02-28 | 2014-02-28 | Tooth root embedding and cross section cutting die and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103845127A true CN103845127A (en) | 2014-06-11 |
Family
ID=50853546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410072666.8A Pending CN103845127A (en) | 2014-02-28 | 2014-02-28 | Tooth root embedding and cross section cutting die and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103845127A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5139419A (en) * | 1990-01-19 | 1992-08-18 | Ormco Corporation | Method of forming an orthodontic brace |
| CN201837537U (en) * | 2010-06-02 | 2011-05-18 | 南京市口腔医院 | Table type tooth sample slicer |
| CN203815638U (en) * | 2014-02-28 | 2014-09-10 | 南京市口腔医院 | Tooth root embedding and transection cutting die |
-
2014
- 2014-02-28 CN CN201410072666.8A patent/CN103845127A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5139419A (en) * | 1990-01-19 | 1992-08-18 | Ormco Corporation | Method of forming an orthodontic brace |
| CN201837537U (en) * | 2010-06-02 | 2011-05-18 | 南京市口腔医院 | Table type tooth sample slicer |
| CN203815638U (en) * | 2014-02-28 | 2014-09-10 | 南京市口腔医院 | Tooth root embedding and transection cutting die |
Non-Patent Citations (1)
| Title |
|---|
| 钱锋: "根管预备前后根管形态学变化的研究", 《中国学位论文全文数据库》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2599983T3 (en) | System and method for manufacturing dentures in layers | |
| CN105078598B (en) | The digitized preparation method of edentulous jaw personalization impression tray | |
| Abdalla et al. | Non-carious cervical lesions imaged by focus variation microscopy | |
| KR101553498B1 (en) | Dental Bridges and superstructures, and methods for manufacturing thereof | |
| CN203815638U (en) | Tooth root embedding and transection cutting die | |
| CN102475581A (en) | Method for detecting undercut of abutment for fixing denture | |
| CN109998705A (en) | A kind of oral cavity porcelain veneer is precisely bonded guide plate and preparation method thereof | |
| CN103845127A (en) | Tooth root embedding and cross section cutting die and method | |
| KR101652673B1 (en) | Temporary tooth manufacturing template and template in the temporary teeth are manufactured by a procedure | |
| US6887078B2 (en) | Model and method for taking a three-dimensional impression of a dental arch region | |
| CN201453384U (en) | Oral parallel grinding guide instrument | |
| Kang et al. | Using a guide template with a handpiece sleeve to locate the abutment screw position of a cement-retained implant restoration | |
| Kosti et al. | A comparative study of crack development in stainless-steel hedstrom files used with step-back or crown-down techniques | |
| CN210100521U (en) | Medical embedding mould convenient to drawing die | |
| CN201798814U (en) | Special impression tray for oral cavity implanting tooth | |
| CN220588399U (en) | Auxiliary tray for repairing tooth defect | |
| CN204260855U (en) | A kind of digitized die rack making system | |
| Al-Khafagy et al. | The effect of using modified flask on the porosity of processed heat-cure acrylic resin | |
| Ahmed et al. | Canal Configuration In Mesiobuccal Root of Permanent Maxillary First Molar Teeth Among Bangladeshi Population-An In Vivo Study | |
| Hafezeqoran et al. | Marginal adaptation of metal ceramic crowns cast from four different base metal alloys before and after porcelain application | |
| RU129806U1 (en) | PRINTING SPOON FOR REMOVING ANATOMICAL PRESSURE FROM ANIMAL JAWS | |
| Yang et al. | Efficacy of microscopy and dye for determining the presence of root canals in root end resections-an in vitro study | |
| DRAFTA et al. | Theoretical and practical aspects regarding the role of the working model in the workflow of porcelain fused to metal fixed restorations-Preliminary study. | |
| CN203953842U (en) | A kind of plastics refer to pincers | |
| Dulaimi | Remaining dentine thickness in mandibular premolars instrumented with two methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140611 |