CN205433948U - Lower jaw qian mo residual root of teeth draw gear - Google Patents
Lower jaw qian mo residual root of teeth draw gear Download PDFInfo
- Publication number
- CN205433948U CN205433948U CN201620145086.1U CN201620145086U CN205433948U CN 205433948 U CN205433948 U CN 205433948U CN 201620145086 U CN201620145086 U CN 201620145086U CN 205433948 U CN205433948 U CN 205433948U
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- CN
- China
- Prior art keywords
- buccal tube
- undesirable root
- tooth
- buccal
- niti silk
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Abstract
The utility model provides a lower jaw qian mo residual root of teeth draw gear relates to orthodontic apparatus field. The devic, grind one's teeth in sleep with the first of homonymy, the second is ground one's teeth in sleep to the anchorage tooth, including two slice bottom plates, the steel wire, the buccal surface pipe, the niti silk, push away spring and tongue side button, the relative both sides face of slice bottom plate passes through the steel wire and links to each other, the buccal surface pipe sets up on the steel wire, buccal surface pipe tube cavity inner wall is on a parallel with the lateral wall of bottom plate and the contained angle of sagittal face is 30~45, the lateral wall of perpendicular to bottom plate is 45~90 with the contained angle of coronal section, the entrance point of buccal surface pipe is towards the tooth side of closing, exit end orientation root side, niti silk one end links to each other with the tongue side button, the other end passes the back back bending of buccal surface pipe, it establishes the niti silk outside between buccal surface pipe entrance point and tongue side button to push away the spring cover, the niti silk is in tensile state, pushes away the spring and is in compression state. The utility model discloses can provide and continuously rescue power, effectively close incomplete root to pulling to the tooth, do benefit to the dowel crown restoration treatment in later stage.
Description
Technical field
This utility model relates to mouth cavity orthodontic apparatus field, is specifically related to a kind of mandibular premolar undesirable root traction apparatus.
Background technology
In clinical oral, the bad mandibular premolar undesirable root caused of large area dental caries is the most, for the case that root of the tooth is longer, can select, by undesirable root tooth extrusion, to carry out post crown restoration treatment again after it meets repairing condition (ferrule, biological width).Prior art, mandibular premolar undesirable root coordinates auxiliary bow to draw frequently with micro-plantation nail, although Orthodontic force is the most lasting, but micro-plantation nail belongs to traumatic treatment, once comes off, and needs second operation, patient to bear bigger misery；Also having employing to coordinate Niti silk the most afterburning at adjacent teeth bonding bracket, but Orthodontic force persistence is poor, traction effect is undesirable.
Summary of the invention
The purpose of this utility model is to provide a kind of mandibular premolar undesirable root traction apparatus, and side effect is less, using the teaching of the invention it is possible to provide continues Orthodontic force, is effectively treated to the post crown restoration of tooth extrusion, beneficially later stage by undesirable root.
The purpose of this utility model adopts the following technical scheme that realization.
nullMandibular premolar undesirable root traction apparatus，First molar with described premolars undesirable root homonymy、Second molar is Anchorage molar，Described traction apparatus includes two the lamellar base plates being attached to Anchorage molar buccal aspect、Steel wire、Buccal tube、Niti silk、Push away spring and be attached to the lingual button of premolars undesirable root buccal aspect，The opposite sides face of said two lamellar base plate is connected by steel wire，Described buccal tube is arranged on steel wire，It is 30～45 ° with sagittal angle that described buccal tube lumen wall is parallel to the sidewall of base plate、The angle of sidewall and coronalplane that described buccal tube lumen wall is perpendicular to base plate is 45 ~ 90 °，The entrance point of described buccal tube is towards tooth conjunction side、The port of export is towards root side，Described Niti silk one end is connected with described lingual button、The other end passes back bending after buccal tube，Described push away outside the Niti silk that spring is set between described buccal tube entrance point and lingual button；Described Niti silk is in extended state, pushes away spring and is in compressive state.
Preferably in technical scheme, described in push away the length of spring than distance 3～5mm between described buccal tube entrance point and lingual button.
Preferably in technical scheme, described Niti silk at back bending to the length between lingual button than lingual button to buccal tube entrance point distance and buccal tube lumen length sum big 1～2mm.
Preferably in technical scheme, every Anchorage molar is attached with a lamellar base plate.
Preferably in technical scheme, the bottom surface that described lamellar base plate is attached to described Anchorage molar is latticed.
Preferably in technical scheme, described mandibular premolar is lower jaw first and second premolars.
Buccal tube in this utility model, its tube chamber is used for inserting Niti silk, and lumen wall includes four sidewalls, and two lateral walls is parallel to each other, and adjacent two side is orthogonal, and two of which sidewall is parallel to buccal tube base plate, and another two side is perpendicular to buccal tube base plate.
Beneficial effect: the power system that this utility model mandibular premolar undesirable root traction apparatus applies can carry out effective Three dimensions control to undesirable root, and side effect is less, using the teaching of the invention it is possible to provide continue Orthodontic force.Niti silk tooth undesirable root is created tooth close to power, cheek to power and remote in power.It is to draw the strength required for tooth undesirable root that its dens in dente closes to power, but because the stress point of tooth undesirable root is positioned at the buccal aspect of drawn tooth, therefore this tooth can be produced one simultaneously and be preced with the tongue moment to rotation, cause tooth Linguoclination.In this utility model, to be parallel to the sidewall of base plate at an angle with sagittal plane for buccal tube lumen wall, therefore the undesirable root drawn can produce after Niti silk is in place cheek to power, the Linguoclination side effect just occurred in opposing tooth undesirable root elongation process.Niti silk is during traction undesirable root, the mobile route of undesirable root is the circular arc centered by buccal tube, therefore in elongation process oriented remote in the trend of movement, for overcoming this side effect, be cased with compressive state outside Niti silk pushes away spring (composition is Nitinol), push away the strength near that spring produces be can resist that undesirable root produces by Niti silk remote in strength.Therefore, tooth undesirable root can effectively be drawn by this utility model to tooth conjunction side, it is to avoid the Linguoclination of tooth undesirable root and remote in mobile, the beneficially post crown restoration treatment in later stage；The strength produced due to Niti silk is soft, the impact on Anchorage molar is less, it is to avoid Anchorage molar near in inclination.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present utility model, wherein 1-base plate, 2-buccal tube, 3-Niti silk, and 4-pushes away spring, 5-lingual button, 9-steel wire.
Fig. 2 is use state diagram of the present utility model, 1-base plate, 2-buccal tube, 3-Niti silk, and 4-pushes away spring, 5-lingual button, 6-second molar, 7-first molar, 8-the second premolars, 9-steel wire.
Fig. 3 is the power system that the second premolars undesirable root is produced by Niti silk, and A-tooth closes to power, and to power during B-is remote, C-cheek is to power.
Fig. 4 is the schematic diagram that the Biting force of Niti silk makes tooth undesirable root Linguoclination, and wherein A-tooth closes to power, and D-hat tongue is to the moment rotated.
Fig. 5 show push away that tooth undesirable root produces by spring near in power E.
Detailed description of the invention
In conjunction with Fig. 1-5, structure of the present utility model and principle are described.
nullUse the second premolars undesirable root on the left of following traction apparatus traction lower jaw，With the first molar 7 on the left of lower jaw、Second molar is Anchorage molar 6，This traction apparatus includes two the lamellar base plates 1 being attached to Anchorage molar buccal aspect、Steel wire 9、Buccal tube 2、Niti silk 3、Push away spring 4 and be attached to the lingual button 5 of tooth undesirable root buccal aspect，The opposite sides face of two lamellar base plates 1 is connected by steel wire，Buccal tube 2 is fixed on steel wire 9，It is 30～45 ° with the sagittal angle of patient that this buccal tube 2 lumen wall is parallel to the sidewall of buccal tube base plate、The angle of sidewall and patient's coronalplane that lumen wall is perpendicular to buccal tube base plate is 60 ~ 70 °，The entrance point of buccal tube is towards tooth conjunction side、The port of export is towards root side，Niti silk 3 one end is connected with lingual button、The other end passes back bending after buccal tube，Push away outside the Niti silk 3 that spring 4 is set between buccal tube 2 entrance point and lingual button 5；Niti silk is in extended state, pushes away spring and is in compressive state.Push away spring and be in compressive state, therefore lingual button and tooth undesirable root are created near in strength so that the Niti silk between buccal tube, lingual button is in extended state, thus tooth undesirable root is created three-dimensional force system.Niti silk of the present utility model tooth undesirable root is created tooth close to power A, cheek to power C and remote in power B(such as Fig. 3).It is to draw the strength required for tooth undesirable root that its dens in dente closes to power, but because the stress point of tooth undesirable root is positioned at the buccal aspect of drawn tooth, therefore this tooth can be produced one simultaneously and be preced with tongue moment D to rotation, cause tooth Linguoclination (Fig. 4).In this utility model, to be parallel to the sidewall of base plate at an angle with sagittal plane for buccal tube lumen wall, therefore the undesirable root drawn can produce after Niti silk is in place cheek to power, the Linguoclination side effect just occurred in opposing tooth undesirable root elongation process.Such as Fig. 5, push away spring and create strength E near, it is possible to opposing Niti silk undesirable root is produced remote in strength B.Therefore, tooth undesirable root can effectively be drawn by this utility model to tooth conjunction side, it is to avoid the Linguoclination of tooth undesirable root and remote in the post crown restoration treatment of mobile trend, beneficially later stage.
Push away the length of spring 4 than distance 3～5mm between buccal tube 2 entrance point and lingual button, push away the length of spring herein and refer to push away length when spring two ends are not applied in any external force.Niti silk at back bending to the length=lingual button between lingual button to buccal tube entrance point distance+buccal tube lumen length+1～2mm.So, push away that the strength near that spring produces can just resist that undesirable root produces by Niti silk remote in power, it is to avoid tooth undesirable root remote in inclination.Refer at the back bending of Niti silk that Niti silk penetrates from buccal tube entrance point, the port of export passes the position that backward back bending is rolled over.
Every Anchorage molar is attached with a lamellar base plate.
Lamellar base plate is metallic plate, be bonded in tooth buccal aspect for bottom surface, be side with four faces of plane perpendicular.Lamellar base plate is attached to the buccal aspect of Anchorage molar by fluid resin.It is latticed that lamellar base plate is attached to the bottom surface of Anchorage molar, is so conducive to base plate to be firmly bonded in tooth buccal aspect.
In this utility model, NiTi silk is exactly nitinol alloy wire.It is bent to be fixed on lingual button that one end of Niti silk bends circle.
Buccal tube is arranged on steel wire by the method for welding.
The manufacture method of tooth undesirable root traction apparatus:
(1) to tooth 6,7 as Anchorage molar during selection is remote with tooth undesirable root 8 homonymy.Taking the oral cavity model of patient, on model, design base plate is in the correct position of Anchorage molar buccal aspect, not affect antagonistic occlusion and not stimulate gingiva as principle, can meet enough bond areas simultaneously.The bonding base plate of fluid resin is used at every Anchorage molar buccal aspect.
The opposite sides face of (2) two base plates is weldingly connected by the medical stainless steel silk of a diameter of 0.6mm, forms one.
(3) point (in the middle of i.e.) welding buccal tube in stainless steel silk, it is 30～45 with the sagittal angle of patient that its lumen wall is parallel to the sidewall of buccal tube base plate?, the angle of the lumen wall sidewall and patient's coronalplane that are perpendicular to buccal tube base plate be 60 ~ 70 °, the entrance point of buccal tube is towards tooth conjunction side, and the port of export is towards root side.
(4) on the premise of not stimulating gingiva, the buccal aspect at undesirable root bonds near the position of gingiva lingual button as far as possible, takes Niti silk, before it part to bend circle bent to be fixed on lingual button.Choosing one section and push away spring, a length of buccal tube entrance point adds 3～5mm to lingual button length.Spring will be pushed away and be enclosed within buccal tube entrance point to outside Niti silk between lingual button, by rear part of Niti silk through back bending after buccal tube, with fixing Niti silk.For the case that undesirable root surrounding soft tissue is good, i.e. gums healthy, the good person of phatnoma bone height can select thicker Niti silk, the Niti silk (cross section is the rectangle of 0.016in*0.022in) of such as 0.016in*0.022in draws, so can realize drawing soon, decrease the hypertrophy of surrounding tissue.For phatnoma bone height less than normal person or with gingival recession person, it is possible to use the Niti circle silk of the 0.016in circle of a diameter of 0.016in (cross section be), because soft strength can promote the hypertrophy of surrounding tissue.
Before traction, on the left of lower jaw, the far middle proximal surface large area dental caries of the second premolars are bad, and dental caries damage lowermost end away from gum edge 3mm.X-ray shows: in remote, dental caries damage lowermost end is contour with alveolar ridge.After drawing three months, the distal surface of undesirable root all reaches 1mm on gum, connect drawn premolars undesirable root with 0.019*0.025in stainless steel silk Sectional arch is fixing and closes on Anchorage molar, carrying out hat after 1 month and extend operation root canal again, after continuing to stablize 2 months, carry out fiber posts, all-ceramic crown reparation.
It addition, applicant has carried out substantial amounts of test to effect of the present utility model.Select to need mandibular premolar 30 example of traction, 18 frist premolars, 12 the second premolarss.Inclusive criteria: the oral sanitary habit that (1) is good, gingiva, without redness, suffers from tooth non-loosening, and percussion is without discomfort.(2) dental caries damage and reach under gum, and the distance in dental caries damage bosom to gum edge is 2 3mm.(3) Dental X-ray film shows and suffers from tooth row root canal, and periodontal membrane space is clear, and the tip of a root has no low-density shadow.(4) tooth root length is suffered from > 14mm.
Use this utility model that the first or second premolars is drawn.Wherein on the left of lower jaw, the second premolars traction apparatus is ibid.In time drawing undesirable root and be first and second premolars on the right side of frist premolar or lower jaw on the left of lower jaw, Anchorage molar selects first molar and the second molar of premolars undesirable root homonymy to be drawn, in traction apparatus, lamellar base plate is attached respectively to Anchorage molar buccal aspect, lingual button is attached to premolars undesirable root buccal aspect, and other are with the second premolars traction apparatus on the left of lower jaw.In distraction procedure, Niti silk creates the tooth extrusion power 30 ~ 50g of persistence, and monthly further consultation is once, 24 months pull-in times.Damage when least significant end reaches 1mm on gum until dental caries and remove this utility model traction apparatus, connect extended premolars with 0.019*0.025in stainless steel silk Sectional arch is fixing and closes on Anchorage molar, after maintaining 1-2 month, gingiva is carried out hat with substantially increasing survivor and extend operation, post surgery stabilization 2 months, fiber posts, hat are repaired.Therapeutic outcome is as shown in table 1.Table 1 shows, dental caries damage lowermost end and change 3.35 ± 0.26mm to the range averaging between adjacent teeth tip of a root line, and difference has statistical significance (p < 0.01), shows that Orthodontic traction makes dental caries damage bottom most position and there occurs significantly change.Gum trench depth basically reaches normal depth 1.87 ± 0.28mm after the treatment.Crown root ratio 1.24 ± 0.30 after treatment, it is ensured that normal biomechanics requirement.Relative to first molar, not changing significantly (p > 0.05) before and after the middle-distant direction gradient suffering from sound of baby talk axle treatment, illustrate this power to tie up in distraction procedure has well control to the sagittal suffering from tooth to position.
Note: representing average in table 1, S represents standard deviation.
Find in the treatment, the angle of sidewall and patient's coronalplane that buccal tube lumen wall is perpendicular to buccal tube base plate is 45 °, 90 ° time, all can reach preferable rectifying effect.
Therefore, this utility model may be used for drawing on the left of lower jaw or right side first and second premolars.
In this utility model, the word of " tooth ", " conjunction " one tiled configuration of composition.
Claims (6)
- null1. mandibular premolar undesirable root traction apparatus，It is characterized in that: with the first molar of described premolars undesirable root homonymy、Second molar is Anchorage molar，Described traction apparatus includes two the lamellar base plates being attached to Anchorage molar buccal aspect、Steel wire、Buccal tube、Niti silk、Push away spring and be attached to the lingual button of premolars undesirable root buccal aspect，The opposite sides face of said two lamellar base plate is connected by steel wire，Described buccal tube is arranged on steel wire，It is 30～45 ° with sagittal angle that described buccal tube lumen wall is parallel to the sidewall of base plate、The angle of sidewall and coronalplane that described buccal tube lumen wall is perpendicular to base plate is 45 ~ 90 °，The entrance point of described buccal tube is towards tooth conjunction side、The port of export is towards root side，Described Niti silk one end is connected with described lingual button、The other end passes back bending after buccal tube，Described push away outside the Niti silk that spring is set between described buccal tube entrance point and lingual button；Described Niti silk is in extended state, pushes away spring and is in compressive state.
- Mandibular premolar undesirable root traction apparatus the most according to claim 1, it is characterised in that described in push away the length of spring than distance 3～5mm between described buccal tube entrance point and lingual button.
- Mandibular premolar undesirable root traction apparatus the most according to claim 2, it is characterised in that described Niti silk at back bending to the length between lingual button than lingual button to buccal tube entrance point distance and buccal tube lumen length sum big 1～2mm.
- Mandibular premolar undesirable root traction apparatus the most according to claim 3, it is characterised in that every Anchorage molar is attached with a lamellar base plate.
- Mandibular premolar undesirable root traction apparatus the most according to claim 4, it is characterised in that the bottom surface that described lamellar base plate is attached to described Anchorage molar is latticed.
- Mandibular premolar undesirable root traction apparatus the most according to claim 5, it is characterised in that described mandibular premolar is lower jaw first and second premolars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620145086.1U CN205433948U (en) | 2016-02-26 | 2016-02-26 | Lower jaw qian mo residual root of teeth draw gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620145086.1U CN205433948U (en) | 2016-02-26 | 2016-02-26 | Lower jaw qian mo residual root of teeth draw gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205433948U true CN205433948U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620145086.1U Withdrawn - After Issue CN205433948U (en) | 2016-02-26 | 2016-02-26 | Lower jaw qian mo residual root of teeth draw gear |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662611A (en) * | 2016-02-26 | 2016-06-15 | 上海市徐汇区牙病防治所 | Underjaw premolar teeth residual root traction device |
| GB2598421A (en) * | 2020-08-24 | 2022-03-02 | Stainsby Ryan | A dental device |
-
2016
- 2016-02-26 CN CN201620145086.1U patent/CN205433948U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662611A (en) * | 2016-02-26 | 2016-06-15 | 上海市徐汇区牙病防治所 | Underjaw premolar teeth residual root traction device |
| CN105662611B (en) * | 2016-02-26 | 2019-01-22 | 上海市徐汇区牙病防治所 | Mandibular premolar undesirable root traction device |
| GB2598421A (en) * | 2020-08-24 | 2022-03-02 | Stainsby Ryan | A dental device |
| GB2598421B (en) * | 2020-08-24 | 2023-10-11 | Stainsby Ryan | A dental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20190122 |
|
| AV01 | Patent right actively abandoned |