CN202313801U - Novel cast rat molar mesial movement orthodontic appliance - Google Patents
Novel cast rat molar mesial movement orthodontic appliance Download PDFInfo
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- CN202313801U CN202313801U CN2011204934375U CN201120493437U CN202313801U CN 202313801 U CN202313801 U CN 202313801U CN 2011204934375 U CN2011204934375 U CN 2011204934375U CN 201120493437 U CN201120493437 U CN 201120493437U CN 202313801 U CN202313801 U CN 202313801U
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Abstract
The utility model discloses a novel cast rat molar mesial movement orthodontic appliance. The appliance comprises a cast individual runner which is matched with and fixedly sleeved on a rat incisor, a cast individual runner which is matched with and fixedly clamped on a rat molar and a nickel-titanium tension spring, wherein the two cast individual runners are provided with traction holes; two ends of the nickel-titanium tension spring are respectively connected with one ends of two binding wires, and the other ends of the two binding wires are fixedly connected to the cast individual runners through the traction holes. When the appliance is used, a rat is subjected to general anesthesia, four limbs and head of the rat are fixed in the supine position, tooth surface is cleaned and isolated from moisture, anchorage tooth and moving tooth cast individual runners are bonded with glass ionomer cement, and the nickel-titanium tension spring is bound in the traction hole with the binding wire to move a target tooth. According to the novel cast rat molar mesial movement orthodontic appliance, the falling rate of a correction device and damage to tissues in the orthodontic tooth moving process are reduced, so that the correction force is distributed to the tooth more scientifically to facilitate directional traction of the tooth, and smooth performing of animal experiments is guaranteed.
Description
Technical field
This utility model relates to a kind of novel casting formula rat molar and moves orthodontic appliance near.
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.Existing method is that two central incisor ligation are as a whole, and fixing with enamel bonding agent winding ligation silk bonding, strengthens anchorage and reduces the purpose that the labial teeth orthotic device comes off thereby reach.The processing of moving tooth is between first and second is ground one's teeth in sleep, to wear the ligation silk, and ligation is fixed, through nickel titanium coil spring the anchorage tooth is connected with mobile tooth afterburning, closely in mobile first molar.Though this method improves than method before to some extent, because the compliance of animal is relatively poor relatively, and the rat incisor root of the tooth causes the orthotic device of incisor to come off easily in continuous growth; And need grind when the incisor of this device partly prepares and remove certain tissue of tooth to prepare retention groove, bigger to the injury of teeth of rat, even cause fractureing of incisor.And because the rat oral cavity is narrow and small, between first molar and second molar, wear rustless steel ligation silk comparatively to require great effort, and; After first molar is moved; The ligation silk is prone to slippage the slit between first and second is ground one's teeth in sleep, and the maintenance property of orthotic device is relatively poor, thereby influences carrying out smoothly of experiment.In addition, aspect periodontal, this orthotic device also is prone to cause first molar gingiva inflammation and frontal resorption.
Summary of the invention
To above-mentioned prior art; This utility model provide a kind of simple in structure, difficult drop-off, controllability strong, the little novel casting formula rat molar of injury of teeth property moved orthodontic appliance near, solved the problem that appliance in the prior art is prone to come off, tooth is prone to cause damage.
This utility model is realized through following technical scheme:
Move orthodontic appliance during a kind of novel casting formula rat molar is near; Comprise the cast type individuation band and the afterburning nickel titanium coil spring of using that clamp with the cast type individuation band of rat incisor matching and fixing suit, with the rat molar matching and fixing; Wherein, Be connected with the ligation silk respectively on two cast type individuation bands, the nickel titanium coil spring two ends are connected with the other end of two ligation silks respectively.
Said cast type individuation band is to be formed by the nichrome casting.
Be equipped with towing pad on said two cast type individuation bands, an end of the ligation silk that is connected with cast type individuation band is fixed through towing pad.
Towing pad on the cast type individuation band of said and rat incisor matching and fixing suit is located at the nearly gum edge of the tongue side place of cast type individuation band.
The towing pad of the cast type individuation band that said and rat molar matching and fixing clamps is located at the near middle side of cast type individuation band.
Said ligation silk is processed by the chromium Nitinol, and its diameter is 0.2mm.
Moving orthodontic appliance during the novel casting formula rat molar of this utility model is near 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 individuation band of anchorage tooth and mobile tooth: on model, make wax pattern: according to rat first molar shape, around the first molar cheek, near in, the palate side makes wax pattern, and in wax pattern is near, stays towing pad; According to the incisor shape, circle cut sound of baby talk cervical region is made wax pattern, and stays towing pad in the tongue side.The embedding wax pattern is cast, is polished and polishes, and accomplishes the making of cast type individuation band.
4. make novel casting formula rat molar and move orthodontic appliance near: two ligation silks are fixedly connected on the nickel titanium coil spring two ends respectively; And an end of ligation silk is fixed on the corresponding cast type individuation band through towing pad, promptly get novel casting formula rat molar and move orthodontic appliance near.
During use: the general anesthesia rat; Dorsal position is rat extremity and head fixedly; Teeth surfaces is also carried out at a distance from wet; With the bonding anchorage tooth in glass-ion cement spit of fland, move tooth (be incisor with grind one's teeth in sleep) cast type individuation band on the tooth of correspondence, after the bonding completion with the ligation silk with the nickel titanium coil spring ligation in towing pad, afterburning moving target tooth.
Mobile orthodontic appliance had reduced the expulsion rate and the damage to organizing of orthotic device in the just abnormal tooth moving process during the novel casting formula rat molar of this utility model was near; 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 cast type individuation 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. move root of the tooth according to grinding one's teeth in sleep profile, casting ring around cheek, near in, the cast type individuation band of palate side, device can be well fixing in the oral cavity, thereby reduce the expulsion rate of device.
3. leave towing pad on the cast type individuation band, it is more easy to make nickel titanium coil spring carry out afterburning operation.
4. the processing of existing method central incisor need be ground and removed a part of tooth preparation retention groove, and is bigger to the tooth injury of rat, even is prone to cause fractureing of incisor.And adopt cast type individuation band is that it is adhered to the tooth surface, to the tooth not damaged.
5. anchorage tooth and the cast type individuation band that moves tooth all are to be adhered to the tooth surface with adhesives, 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.
6. cast type individuation 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 directed traction that moves tooth that reaches of anchorage tooth.
Description of drawings
Fig. 1 is the structural representation of this utility model.
Wherein, 1, with the cast type individuation band of rat incisor matching and fixing suit; 2, towing pad; 3, ligation silk; 4, nickel titanium coil spring; 5, the cast type individuation band that clamps with the rat molar matching and fixing.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further described.
Move orthodontic appliance during a kind of novel casting formula rat molar is near; Comprise the cast type individuation band 5 that clamps with the cast type individuation band 1 of rat incisor matching and fixing suit, with the rat molar matching and fixing and afterburning with nickel titanium coil spring 4; As shown in Figure 1; Wherein, Be equipped with towing pad 2 on two cast type individuation bands: be located at the nearly gum edge of the tongue side place of cast type individuation band with the towing pad 2 on the cast type individuation band 1 of rat incisor matching and fixing suit, the towing pad 2 of the cast type individuation band 5 that clamps with the rat molar matching and fixing is located at side in cast type individuation band near; Nickel titanium coil spring 4 two ends are connected with an end of two ligation silks 3 respectively; The other end of ligation silk 3 is fixedly attached to through towing pad 2 that (two ligation silks 3 are passed at the two ends of nickel titanium coil spring 4 respectively on the cast type individuation band; Two ligation silks 3 pass the towing pad 2 on the two cast type individuation bands respectively, and nickel titanium coil spring 4 ligation are fixed on the cast type individuation band).
Said cast type individuation band is to be formed by the nichrome casting.
Said ligation silk 3 is processed by the chromium Nitinol, and its diameter is 0.2mm.
Moving orthodontic appliance during said novel casting formula rat molar is near 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 individuation band of anchorage tooth and mobile tooth: on model, make wax pattern: according to rat first molar shape, around the first molar cheek, near in, the palate side makes wax pattern, and in wax pattern is near, stays towing pad; According to the incisor shape, circle cut sound of baby talk cervical region is made wax pattern, and stays towing pad in the tongue side.The embedding wax pattern is cast, is polished and polishes, and accomplishes the making of cast type individuation band.
During use: the general anesthesia rat; Dorsal position is rat extremity and head fixedly; Teeth surfaces is also carried out at a distance from wet; With the bonding anchorage tooth in glass-ion cement spit of fland, move tooth cast type individuation band on the tooth of correspondence, after the bonding completion with the ligation silk with nickel titanium coil spring 4 ligation in towing pad 2, afterburning moving target tooth.
Claims (6)
1. a novel casting formula rat molar moves orthodontic appliance near; It is characterized in that: comprise the cast type individuation band and the nickel titanium coil spring that clamp with the cast type individuation band of rat incisor matching and fixing suit, with the rat molar matching and fixing; Wherein, Be connected with the ligation silk respectively on two cast type individuation bands, the nickel titanium coil spring two ends are connected with the other end of two ligation silks respectively.
2. move orthodontic appliance during a kind of novel casting formula rat molar according to claim 1 is near, it is characterized in that: said cast type individuation band is to be formed by the nichrome casting.
3. move orthodontic appliance during a kind of novel casting formula rat molar according to claim 1 is near; It is characterized in that: be equipped with towing pad on said two cast type individuation bands, an end of the ligation silk that is connected with cast type individuation band is fixed through towing pad.
4. move orthodontic appliance during a kind of novel casting formula rat molar according to claim 3 is near, it is characterized in that: the towing pad on the cast type individuation band of said and rat incisor matching and fixing suit is located at the nearly gum edge of the tongue side place of cast type individuation band.
5. move orthodontic appliance during a kind of novel casting formula rat molar according to claim 3 is near, it is characterized in that: the towing pad of the cast type individuation band that said and rat molar matching and fixing clamps is located at the near middle side of cast type individuation band.
6. move orthodontic appliance during a kind of novel casting formula rat molar according to claim 1 is near, 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 |
|---|---|---|---|
| CN2011204934375U CN202313801U (en) | 2011-12-01 | 2011-12-01 | Novel cast rat molar mesial movement orthodontic appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204934375U CN202313801U (en) | 2011-12-01 | 2011-12-01 | Novel cast rat molar mesial movement orthodontic appliance |
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| Publication Number | Publication Date |
|---|---|
| CN202313801U true CN202313801U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204934375U Expired - Fee Related CN202313801U (en) | 2011-12-01 | 2011-12-01 | Novel cast rat molar mesial movement orthodontic appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102488567A (en) * | 2011-12-01 | 2012-06-13 | 山东大学 | Experiment method of orthodontic near shifting molar murine animals |
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2011
- 2011-12-01 CN CN2011204934375U patent/CN202313801U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102488567A (en) * | 2011-12-01 | 2012-06-13 | 山东大学 | Experiment method of orthodontic near shifting molar murine animals |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131201 |