CN2920182Y - Tooth polymerization degree measuring device - Google Patents
Tooth polymerization degree measuring device Download PDFInfo
- Publication number
- CN2920182Y CN2920182Y CN 200620086377 CN200620086377U CN2920182Y CN 2920182 Y CN2920182 Y CN 2920182Y CN 200620086377 CN200620086377 CN 200620086377 CN 200620086377 U CN200620086377 U CN 200620086377U CN 2920182 Y CN2920182 Y CN 2920182Y
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- tooth
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- screw
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Abstract
The utility model relates to a measuring device for accurate measurement of the tooth polymerization density in clinical prosthodontics, comprising a distance measuring bolt (1), an arc dial (2), a pointer (5), and a set screw (3), etc. The distance measuring bolt (1) is arranged at one end of the arc dial (2), which is vertical to the set screw (3) arranged on the arc dial (2). One end of the pointer (5) is hinged with the bolt end of the distance measuring bolt (1), and the other end leans against the arc dial (2). When operates the utility model, the set screw (3) is positioned at the middle of the top of teeth 4, the bolt end of the distance measuring bolt (1) leans on the upper part of the shoulder of the tooth cervix, and the pointer (5) leans on tooth, thereby getting the measurements of the tooth polymerization density. The model utility is characterized in that the measuring device can get the measurements with high accuracy of the tooth polymerization density, thus enhancing prospects of the tooth preparation, reducing the possibility of repreparing and relieving pain of the patient, as well as the utility model is easy to handle and can reduce the wastage of materials.
Description
One, technical field
This utility model is the measuring device that can accurately measure the tooth body degree of polymerization in a kind of oral repairing clinic.
Two, background technology
The porcelain foundry engieering is used widely in Oral Repair, ceramic crown bridge, all-ceramic crown etc. become present main flow recovery technique with its comparatively perfect outward appearance, excellent biological compatibility, proper intensity etc., and pyramid type telescope crown, precision attachment etc. have solved the reparation of isolated agomphiasis, free deletion tooth etc.The tooth preparation that above-mentioned restorative procedure is all strict, wherein important one is that the tooth axon all will be followed strict standard to the degree of polymerization.This has just proposed very high requirement to the clinicist, though long to total length, crown length, the root of tooth body at present, numerical value such as hat is wide, hat is thick, neck breadth, neck depth, neck curvature have had measuring method, but the degree of polymerization to the tooth body does not still have a mouthful interior device of directly measuring, the experience that mainly relies on the doctor to grasp at present.Therefore, need repeatedly abutment to be rebuild, even cause and do over again, make troubles and misery to the patient, and the waste of material.
Three, summary of the invention
The purpose of this utility model is for a kind of measuring device that can accurately measure the tooth body degree of polymerization is provided in the clinical Oral Repair, it can accurately measure the degree of polymerization of teething body, thereby improves the success rate of tooth preparation, reduces rework rate, alleviate patient's misery, reduce the waste of material.
For achieving the above object, the technical scheme that this utility model is taked is: it includes range finding screw, arc-shaped scale, pointer, dog screw etc.Pointer, dog screw are two, two ends, its nut end that the range finding screw is arranged on the arc-shaped scale downside at the arc outside, its threaded end in the arc inboard; Dog screw is arranged on the middle part of arc-shaped scale and is vertical with the range finding screw; One end of pointer connects with the threaded end hinge joint of range finding screw, the other end leans against on the arc-shaped scale.
When using this utility model, this utility model is placed on the tooth that needs to measure, operation range finding screw, dog screw, make dog screw be positioned at the centre of tooth end face, and the threaded end that makes the range finding screw of two ends leans against the place, neck portion shoulder top of abutment, operate pointer again, pointer is leaned against on the tooth.At this moment, pointer obtains an angular readings on arc-shaped scale, puts in the length of arc-shaped scale, the radius of arc-shaped scale according to this angular readings and range finding screw again, just can accurately calculate the degree of polymerization of this tooth.
Therefore, the utlity model has the degree of polymerization that can accurately measure the teething body, improve the success rate of tooth preparation, reduce rework rate, alleviate patient's misery, and simple to operate, the characteristics such as waste of reduction material.
Four, description of drawings
Accompanying drawing is this utility model sketch map;
Five, the specific embodiment
As shown in Figure 1, this utility model is made up of range finding screw 1, arc-shaped scale 2, pointer 5, dog screw 3 etc.Arc-shaped scale 2 is semi-circular, range finding screw 1 is two, be separately positioned on the two ends of arc-shaped scale 2, the nut end of range finding screw 1 in the outside of arc-shaped scale 2, threaded end is in the inboard of arc-shaped scale 2, dog screw 3 is arranged on the middle part of arc-shaped scale 2 and all is vertical with the range finding screw 1 at two ends; Pointer 5 is two, and an end of two root pointers 5 respectively connects with the threaded end hinge joint of a range finding screw 1, the other end leans against on the arc-shaped scale 2.
During use, operation dog screw 3 and range finding screw 1 make dog screw 3 be positioned at the centre at tooth 4 tops, and the threaded end of range finding screw 1 leans against the place, neck portion shoulder top of tooth 4, pointer 5 is leaned against on the tooth 4, just can calculate the degree of polymerization of tooth 4.Computational methods can adopt following method:
tgα＝[r(1-cosβ)-a]/rsinβ；
In the formula: α---the degree of polymerization, r---arc-shaped scale 2 inner arc radius, β---pointer 5 angular readings, a---screw puts in the length of arc-shaped scale.
Therefore, the utlity model has the degree of polymerization that can accurately measure the teething body, improve the success rate of tooth preparation, reduce rework rate, alleviate patient's misery, and simple to operate, the characteristics such as waste of reduction material.
Claims (1)
1, a kind of tooth body degree of polymerization measuring device is characterized in that including range finding screw (1), arc-shaped scale (2), pointer (5), dog screw (3); Pointer (5), dog screw (3) are two, two ends, its nut end that range finding screw (1) is arranged on arc-shaped scale (2) downside at the arc outside, its threaded end in the arc inboard, dog screw (3) is arranged on the middle part of arc-shaped scale (2) and is vertical with range finding screw (1), on an end of pointer (5) connects with the threaded end hinge joint of range finding screw (1), the other end leans against arc-shaped scale (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086377 CN2920182Y (en) | 2006-06-23 | 2006-06-23 | Tooth polymerization degree measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086377 CN2920182Y (en) | 2006-06-23 | 2006-06-23 | Tooth polymerization degree measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2920182Y true CN2920182Y (en) | 2007-07-11 |
Family
ID=38252662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620086377 Expired - Fee Related CN2920182Y (en) | 2006-06-23 | 2006-06-23 | Tooth polymerization degree measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2920182Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913795A (en) * | 2017-04-28 | 2020-03-24 | 拉弗朗特拉大学 | Instrument for in situ measurement of convergence angle in dental preparation |
-
2006
- 2006-06-23 CN CN 200620086377 patent/CN2920182Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913795A (en) * | 2017-04-28 | 2020-03-24 | 拉弗朗特拉大学 | Instrument for in situ measurement of convergence angle in dental preparation |
| CN110913795B (en) * | 2017-04-28 | 2021-10-15 | 拉弗朗特拉大学 | Measuring instrument for in situ measurement of the convergence angle of a dental preparation or root |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |