CN202477883U - Cast rat incisor anchorage device - Google Patents
Cast rat incisor anchorage device Download PDFInfo
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- CN202477883U CN202477883U CN2011204934144U CN201120493414U CN202477883U CN 202477883 U CN202477883 U CN 202477883U CN 2011204934144 U CN2011204934144 U CN 2011204934144U CN 201120493414 U CN201120493414 U CN 201120493414U CN 202477883 U CN202477883 U CN 202477883U
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- rat
- incisor
- cast
- anchorage device
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Abstract
The utility model discloses a cast rat incisor anchorage device which comprises a cast strip ring. The cast strip ring is fixedly and fittingly sleeved to a rat incisor, a ligature wire is connected onto the cast strip ring, a nickel-titanium tension spring is connected to the other end of the ligature wire, and another ligature wire is connected to the other end of the nickel-titanium tension spring. When the cast rat incisor anchorage device is used, a rat is subjected to general anesthesia, limbs and the head of the rat in the supine position are fixed, the tooth surface is cleaned and isolated from humidity, and the cast strip ring is adhered to the corresponding incisor by glass lonomer cement. The cast rat incisor anchorage device can be fittingly used with an individual headgear for rat molar mesioocclusion orthodontic correction, wherein the individual headgear is used for rat first molar mesioocclusion movement tests. By the aid of the cast rat incisor anchorage device, shedding rate of a correction device and tissue damage by the correction device during orthodontic tooth movement are reduced, correction force can be distributed on teeth more scientifically, directional drawing of teeth is facilitated, and accordingly smoothness of animal experiments is guaranteed.
Description
Technical field
This utility model relates to a kind of cast type rat incisor anchorage device.
Background technology
At present, along with growth in the living standard, increasing choose orthodontic treatment is corrected deformities such as denture is uneven, prolapse.And the corrigent core of denture just is controllable move of tooth in jawbone, and for this reason, a lot of scholars move with regard to tooth and done a large amount of research.It is very many to influence the factor that tooth moves, and it is also different to influence mechanism, and some implementing measure Chang Wufa directly studies on human body, so zoopery becomes just abnormal tooth and moves one of basic experiment method of research.
Zooperal result is based on the good foundation of animal experimental model, and the foundation of animal experimental model at first is the selection of laboratory animal.Learn that from pertinent literature in the past the zoopery 57% that orthodontic tooth moves adopts rat as laboratory animal, all the other animals of selecting for use comprise miniature pig, rabbit, dog and primates monkey etc.Primates is more approaching human than other animals in biological evolution, except that the denture difference in size, and the primates gap of the number of tooth, existence, and the dissection of tooth and periodontal is all very similar with the people, is ideal laboratory animal.But owing to cost an arm and a leg, be difficult for buying, be difficult to carry out large-scale experimentation.Rat is a rodent, and tooth-like is I1/1, M3/3, and 5 all complete eruptions of grinding one's teeth in sleep of week after birth usually, and grind one's teeth in sleep and be multirooted teeth.Except that the incisor root of the tooth continues growth, its periodontal tissue such as gingiva, alveolar bone, pericemental anatomical structure and mutual relation and physiognomy seemingly, and the rat growth cycle is lacked; Raise easily; Cheap, the suitable large sample of doing is observed, so rat often is chosen as the laboratory animal that orthodontic tooth moves experiment.
The ultimate principle that orthodontic moves is to apply an external force to tooth, and this external force is delivered on the tooth through a kind of orthotic device that is bonded on the tooth, finally makes tooth be moved along the direction of power.The key of this process is the good maintenance of orthotic device on tooth.It is to be anchorage with the central incisor that the just abnormal tooth of rat moves, nearly middle traction first molar.Early stage method is directly to move first molar with incisor near, and this method orthotic device is prone to come off, and the rat periodontal lesion is serious.Existing method is improved the orthotic device of incisor: general anesthesia fixedly respectively grinds the shallow ridges of parallel gum edge, about deeply 0.2mm behind the rat at the neck edge place of 2 central incisor corona labial surfaces, lingual surface and distal surfaces with tip corundum car pin at a slow speed; Embed in the ditch with 0.2mm rustless steel ligation silk then; 2 are cut is that the incisor ligation is as a whole; Fixing with enamel bonding agent at last around central incisor neck portion bonding, prevent that the ligation silk from coming off, also can strengthen anchorage simultaneously.Though this method improves than method before to some extent, because bonding agent has certain thickness, the rat sense of discomfort is bigger, often bites, and causes device to be prone to come off.And this device need grind and remove certain tissue of tooth to prepare retention groove, and is bigger to the injury of teeth of rat, even causes fractureing of incisor, and grinds when removing tissue of tooth also bigger to the stimulation of rat.In addition, the later stage is prone to cause fractureing of ligation silk when afterburning, need reinstall new device.Above factor all is prone to carrying out smoothly of influence experiment.
Summary of the invention
To above-mentioned prior art, this utility model provides that a kind of maintenance is better, difficult drop-off, can not cause the cast type rat incisor anchorage device of damage to rat incisor, has solved the caducous problem of prior art central incisor anchorage device.
This utility model is realized through following technical scheme:
A kind of cast type rat incisor anchorage device comprises and the cast type band of rat incisor matching and fixing suit that be connected with the ligation silk on the cast type band, the ligation silk other end is connected with nickel titanium coil spring, and the nickel titanium coil spring other end is connected with another root ligation silk.
Said cast type band is to be formed by the nichrome casting.
Said cast type band is provided with towing pad, and an end of the ligation silk that is connected with the cast type band is fixed through towing pad.
Said towing pad is located at the nearly gum edge of the tongue side place of cast type band.
Said ligation silk is processed by the chromium Nitinol, and its diameter is 0.2mm.
The cast type rat incisor anchorage device of this utility model prepares in the following manner:
1. the anesthesia of rat is fixed: use ketamine 2mg/kg intraperitoneal injection of anesthesia, dorsal position is rat extremity and head fixedly;
2. produce rat denture plaster model: make individual tray with self curing plastic, the finishing individual tray uses alginate impression material to produce rat denture die, and the rat dental arch model is obtained in the anhydrite perfusion;
3. make the cast type band:, hold incisor neck portion and make band shape wax pattern, and stay towing pad in the nearly gum edge of tongue side place according to the incisor shape.The embedding wax pattern is cast, is polished and polishes, and accomplishes the making of cast type band.
4. make cast type rat incisor anchorage device: two ligation silks are fixedly connected on the nickel titanium coil spring two ends respectively, and wherein an end of a ligation silk is fixed on the cast type band through towing pad, promptly gets cast type rat incisor anchorage device.
During use: general anesthesia rat, dorsal position be rat extremity and head fixedly, and teeth surfaces is also carried out at a distance from wet, with the bonding cast type band in glass-ion cement spit of fland on the incisor of correspondence.Carry out rat and move when grinding one's teeth in sleep orthodontic therapy near, can with near in move the experiment of rat first molar with individual appliance (patent No. ZL201020519477.8, Granted publication number: CN201743787U) be used.
The cast type rat incisor anchorage device of this utility model; The expulsion rate and the damage of orthotic device in the just abnormal tooth moving process have been reduced to organizing; Make the power of rescuing more science be distributed in tooth, helping the directed traction of tooth, thereby guarantee is provided smoothly for zooperal.The utlity model has following advantage:
1. incisor adopts the cast type band, more fits with the rat incisor profile, and adopts the glass-ion cement spit of fland to be adhered to neck portion, and maintenance is better, and difficult drop-off has solved the caducous problem of prior art central incisor anchorage device.
2. leave towing pad on the cast type band, it is more easy to make nickel titanium coil spring carry out afterburning operation, and device is not fragile in experimentation.
3. adopt the cast type band that anchorage device is adhered to the tooth surface, to the tooth not damaged.
4. avoided wearing the ligation silk and when afterburning to the damage of periodontal tissue, the carrying out that more helps testing and the accuracy of experimental result.
5. cast type band and tooth contact level are long-pending big and even, thereby the power of rescuing can be distributed on the tooth equably, more help the stable of anchorage tooth.
Description of drawings
Fig. 1 is the structural representation of this utility model.
Wherein, 1, cast type band; 2, towing pad; 3, ligation silk; 4, nickel titanium coil spring.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further described.
A kind of cast type rat incisor anchorage device; Comprise cast type band 1 with rat incisor matching and fixing suit; As shown in Figure 1, the nearly gum edge of the tongue side place of cast type band 1 is provided with towing pad 2, and towing pad 2 places are fixedly connected with ligation silk 3; Ligation silk 3 other ends are connected with nickel titanium coil spring 4, and nickel titanium coil spring 4 other ends are connected with another root ligation silk 3.
Said cast type band 1 is to be formed by the nichrome casting.
Said ligation silk 3 is processed by the chromium Nitinol, and its diameter is 0.2mm.
Said cast type rat incisor anchorage device prepares in the following manner:
1. the anesthesia of rat is fixed: use ketamine 2mg/kg intraperitoneal injection of anesthesia, dorsal position is rat extremity and head fixedly;
2. produce rat denture plaster model: make individual tray with self curing plastic, the finishing individual tray uses alginate impression material to produce rat denture die, and the rat dental arch model is obtained in the anhydrite perfusion;
3. make the cast type band:, hold incisor neck portion and make band shape wax pattern, and stay towing pad in the nearly gum edge of tongue side place according to the incisor shape.The embedding wax pattern is cast, is polished and polishes, and accomplishes the making of cast type band.
4. make cast type rat incisor anchorage device: two ligation silks are fixedly connected on the nickel titanium coil spring two ends respectively, and wherein an end of a ligation silk is fixed on the cast type band through towing pad, promptly gets cast type rat incisor anchorage device.
During use: general anesthesia rat, dorsal position be rat extremity and head fixedly, and teeth surfaces is also carried out at a distance from wet, with the bonding cast type band 1 in glass-ion cement spit of fland on the incisor of correspondence.Carry out rat and move when grinding one's teeth in sleep orthodontic therapy near, with near in move the experiment of rat first molar with individual appliance (patent No. ZL201020519477.8, Granted publication number: CN201743787U) be used.
Claims (4)
1. cast type rat incisor anchorage device; It is characterized in that: comprise cast type band with rat incisor matching and fixing suit; Be connected with the ligation silk on the cast type band, the ligation silk other end is connected with nickel titanium coil spring, and the nickel titanium coil spring other end is connected with another root ligation silk.
2. a kind of cast type rat incisor anchorage device according to claim 1 is characterized in that: said cast type band is to be formed by the nichrome casting.
3. a kind of cast type rat incisor anchorage device according to claim 1, it is characterized in that: said cast type band is provided with towing pad, and an end of the ligation silk that is connected with the cast type band is fixed through towing pad.
4. a kind of cast type rat incisor anchorage device according to claim 1, it is characterized in that: said ligation silk is processed by the chromium Nitinol, and its diameter is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204934144U CN202477883U (en) | 2011-12-01 | 2011-12-01 | Cast rat incisor anchorage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204934144U CN202477883U (en) | 2011-12-01 | 2011-12-01 | Cast rat incisor anchorage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202477883U true CN202477883U (en) | 2012-10-10 |
Family
ID=46952349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204934144U Expired - Fee Related CN202477883U (en) | 2011-12-01 | 2011-12-01 | Cast rat incisor anchorage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202477883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137415A (en) * | 2016-08-11 | 2016-11-23 | 佛山市第人民医院 | A kind of invisible orthotic device without bracket rescuing jawbone prolapse |
-
2011
- 2011-12-01 CN CN2011204934144U patent/CN202477883U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137415A (en) * | 2016-08-11 | 2016-11-23 | 佛山市第人民医院 | A kind of invisible orthotic device without bracket rescuing jawbone prolapse |
| CN106137415B (en) * | 2016-08-11 | 2018-12-18 | 佛山市第一人民医院 | It is a kind of to rescue the invisible orthotic device without bracket dashed forward before jawbone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |