WO2023213152A1 - 一种弓丝转矩可控的正畸自锁托槽及系统 - Google Patents
一种弓丝转矩可控的正畸自锁托槽及系统 Download PDFInfo
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- WO2023213152A1 WO2023213152A1 PCT/CN2023/083219 CN2023083219W WO2023213152A1 WO 2023213152 A1 WO2023213152 A1 WO 2023213152A1 CN 2023083219 W CN2023083219 W CN 2023083219W WO 2023213152 A1 WO2023213152 A1 WO 2023213152A1
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- WIPO (PCT)
- Prior art keywords
- groove
- bracket
- elastic
- archwire
- elastic tube
- Prior art date
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- 210000004283 incisor Anatomy 0.000 claims description 38
- 210000004763 bicuspid Anatomy 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 11
- 241000282465 Canis Species 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 9
- 230000005489 elastic deformation Effects 0.000 claims description 8
- 238000011282 treatment Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000002146 bilateral effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 206010061274 Malocclusion Diseases 0.000 description 4
- 208000006650 Overbite Diseases 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 208000006860 root resorption Diseases 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 210000004513 dentition Anatomy 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 210000004373 mandible Anatomy 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/14—Brackets; Fixing brackets to teeth
Definitions
- the invention relates to an orthodontic self-locking bracket and system with controllable arch wire torque.
- Orthodontic self-ligating brackets use the self-locking structure of the brackets to replace the traditional ligation operation, which reduces the friction between the bracket grooves and the archwires. It has the advantages of convenient and efficient clinical operation, soft correction force, and fast tooth movement. advantage.
- Orthodontic treatment can be roughly divided into two stages based on the thickness of the archwire used.
- the first stage is the early use of thin archwires to act on the bracket grooves of the teeth to align and level the teeth.
- the second stage is the use of thick archwires.
- the roots of the teeth are controlled to achieve the ideal torque, axial inclination and position of the teeth, taking into account both function and aesthetics.
- the current self-ligating brackets in the prior art have the following defects: when the self-ligating bracket uses a thick archwire, the thick archwire is placed in the groove of the bracket, and the size of the thick archwire must be smaller than the groove size (because the entire It is difficult for the large-sized arch wire to completely enter the groove, or the correction force is too large), which leads to the inevitable gap between the inner wall of the groove and the thick arch wire, which cannot be eliminated even with an elastic self-locking cover plate structure.
- the invention provides an orthodontic self-locking bracket and system with controllable archwire torque.
- the structure is reasonably designed and a new elastic component structure is provided in the groove of the self-locking bracket, replacing and subverting the existing technology.
- the problem of torque control between the rigid grooves of self-ligating brackets and the rigid archwire fundamentally solves the problem of excessive concentration of root stress when the archwire is used for torque control at different torsion angles, making the archwire torque couple soft.
- Expression greatly reduces the risk of tooth root resorption during the orthodontic process, avoids and eliminates damage to the teeth during the orthodontic process, makes clinical operations more convenient and efficient for doctors, and solves the problems existing in the existing technology.
- an orthodontic self-ligating bracket with controllable arch wire torque including a bracket body, and a groove is provided in the bracket body, and the groove is The upper part is provided with a self-locking cover plate and also includes an elastic member connected to one side wall of the groove.
- the elastic member and the other side wall of the groove are used to set the archwire.
- the elastic member can elastically deform under the extrusion of the arch wire, and the elastic member can elastically deform at locations close to the bottom surface of the groove and far away from the bottom surface of the groove to act elastically on different surfaces. Twisted angle arch wire.
- the elastic member is an elastic tube
- the elastic tube is connected to the side wall of the groove, and the elastic tube can be elastically deformed under the extrusion of the arch wire.
- the side wall of the groove is provided with a clamping groove, and the clamping slot is used to cooperate with the elastic tube so that the outer side wall of the elastic tube protrudes from the clamping slot, and the inner wall of the clamping slot is A deformation gap is provided between the elastic tube and the elastic tube, and the deformation gap is used to provide deformation of the elastic tube.
- Designing slots on the side walls of the grooves to accommodate the installation of elastic tubes makes the production and assembly of the entire structure simpler, easier to implement, and cost controllable. It also ensures that the position of the elastic tube will not be affected by the extrusion of the arch wire. Changes occur and are always kept inside the slot to ensure effective elasticity and control of the archwire.
- the axial direction of the elastic tube is perpendicular to the bottom surface of the groove, and at least one elastic tube is provided in a direction parallel to the bottom surface of the groove.
- the axial direction of the elastic tube is set perpendicular to the bottom direction of the groove, which can give full play to the elastic deformation characteristics of the elastic tube at any position along the axial direction, and realize torque control of the archwire at any angle.
- the elastic tube can be squeezed by the archwire and deformed, thereby producing elastic force control.
- the two elastic tubes which are distributed at both ends in a direction parallel to the bottom surface of the groove.
- the two elastic tubes provided in this plan can adapt to the functional requirements of the self-locking brackets corresponding to the incisors, so that the opening positions on both sides of the groove can elastically control the archwire, which is suitable for the rotation of the archwire at the incisor position. moment changes.
- the axial direction of the elastic tube is arranged parallel to the bottom surface of the groove, and at least one elastic tube is provided in a direction perpendicular to the bottom surface of the groove.
- This solution is an alternative to the aforementioned elastic tube that is arranged axially perpendicular to the bottom surface of the groove.
- the elastic tube is arranged with the axial direction parallel to the bottom surface of the groove. It can also exert the elastic force control effect of the elastic tube. The actual use effect is slightly is low, but it is still better than the existing technology and can achieve better elastic control capabilities.
- two of the elastic tubes are provided in a direction perpendicular to the bottom surface of the groove, and the two elastic tubes are provided at both ends in a direction perpendicular to the bottom surface of the groove.
- the two elastic tubes provided in this plan can adapt to the functional requirements of the self-locking brackets corresponding to the incisors, so that the opening positions on both sides of the groove can elastically control the archwires, which is suitable for the archwires to be placed on the incisors. Torque changes in position.
- a fixing part is integrally formed on the side wall of the groove, and the fixing part is provided with the clamping groove.
- the characteristics of the fixed part in this solution are different from the self-locking bracket structure in the existing technology. It is a brand-new structural design and is easy to produce.
- the slot is opened in the fixed part, which can achieve stable installation of the archwire and has a reasonable structure.
- the fixing part is provided integrally, and the two ends of the fixing part do not exceed the two side end surfaces of the groove in a direction parallel to the bottom surface of the groove.
- the design of the fixed part is completely matched with the elastic tube to ensure that the elastic tube can exert elastic force on the archwire. Therefore, it is necessary to ensure that the two ends of the fixed part cannot exceed the both sides of the groove.
- the fixing part can be set as an integrated structure and arranged on the entire groove side wall; or the fixing part can be set as a split structure, respectively corresponding to the elastic tubes and distributed on The groove side walls.
- the elastic tube is provided with cutting slits, and the cutting slits are used to increase the elastic deformation capacity of the elastic tube.
- the design of the cutting slit allows the elastic tube to have greater deformation ability.
- the cutting slit can provide more deformation space, making the elastic tube's elastic control range larger and its adaptability stronger. .
- the elastic tube is a circular elastic tube.
- the round tube structure is more stable and controllable, and processing, production and installation are easier.
- An orthodontic self-locking bracket system with controllable arch wire torque including the elastic tube, and a plurality of brackets, the brackets are provided with the grooves, and the grooves are provided with The elastic tube, the bracket includes a first bracket, a second bracket and a third bracket;
- Two of the elastic tubes of the first bracket are provided in a direction perpendicular to the bottom surface of the groove, and the two elastic tubes are distributed on both sides in a direction parallel to the bottom surface of the groove;
- the elastic tube of the second bracket is provided in a direction perpendicular to the bottom surface of the groove, and one elastic tube is distributed on one side of the groove in a direction parallel to the bottom surface of the groove.
- the elastic tube of the third bracket is provided in a direction perpendicular to the bottom surface of the groove, and one elastic tube is distributed in the middle of the groove in a direction parallel to the bottom surface of the groove;
- the first bracket is arranged on the incisors
- the second bracket is arranged on the canines
- the third bracket is arranged on the premolars
- the first bracket, the second bracket and the third bracket are mutually exclusive. Cooperation enables the archwire to produce different orthodontic forces corresponding to different tooth parts.
- the first bracket is installed on the incisors
- the second bracket is installed on the canines
- the third bracket is installed on the premolars.
- the elastic tubes of the first bracket, the second bracket and the third bracket are used cleverly and Differential settings enable the archwires of the bracket system to produce different correction forces at the positions corresponding to different brackets, so that there is no need to be very precise when applying torque on the incisors.
- the elastic tube of the first bracket can ensure the slow release of stress.
- the second bracket provides the arch wire with movement clearance close to the incisor side, preventing the incisor overbite from deepening due to the axis of the canine;
- the third bracket The free positions on both sides of the elastic tube can provide movement clearance for the archwire, so that the premolars are not prone to mesial tilt and loss of anchorage.
- it can also reduce the number of rocking chair archwires and third brackets. The friction between them does not require excessive orthodontic force to cause unrelated teeth to move.
- the orthodontic self-ligating bracket system in this solution is shown in the accompanying drawings to be applied to the upper teeth, those skilled in the art can know that it is also applicable to the mandibular teeth.
- the brackets placed on the mandibular incisors can be the first bracket or the existing bracket with an inelastic tube structure.
- the bracket structure can be flexibly selected according to the different orthodontic needs of the mandibular teeth.
- the second bracket is provided on the canine, and the side of the groove where the elastic tube is not provided is provided toward the incisor to allow the archwire to move.
- the arch wire is provided with movement clearance toward the incisor side, reducing the additional pulling force of the arch wire on the incisors, and also eliminating the downward ineffective pulling force of the arch wire on the incisors in time, thus preventing The incisors are elongated outward to prevent the incisors from deepening the overbite.
- the third bracket is set on the other premolar that has not been extracted.
- the elastic tube of the third bracket is The free spaces on both sides are used to reduce the friction force generated by the rocking chair-shaped archwire and the third bracket.
- the tooth extraction operation basically involves extracting the premolars and then using the gap to align the dentition and retract the front teeth, after one of the premolars is extracted, a gap is placed in the groove of the orthodontic bracket.
- Rocking chair-shaped archwire, rocking chair-shaped archwire is the name of a special archwire form added in the field of orthodontics during the gap stage of teeth.
- the curved shape of the rocking-chair archwire will pull and displace the teeth on both sides of the gap.
- the free positions on both sides of the elastic tube of the third bracket provide movement clearance for the rocking chair-shaped arch wire, effectively reducing the ineffective friction force generated between the bending position of the rocking chair-shaped arch wire and the third bracket, thereby reducing Minimize the correction force generated by the archwire of the entire system to avoid movement of irrelevant teeth.
- the fixing portion of the first bracket can be continuously and integrally provided along the side wall of the groove.
- the second bracket is provided with a unilateral notch, and the unilateral notch corresponds to the position of the side wall of the groove that is not filled by the fixing part.
- the maximum size of the single-sided notch 501 is limited: in the length direction of the groove, the size of the single-sided notch of the second bracket is ⁇ 60% of the length of the entire groove.
- the third bracket is provided with a double-sided notch, and the double-sided notch corresponds to the position of the side wall of the groove that is not filled by the fixing part.
- the double-sided notch 601 of the third bracket 6 is limited: in the length direction of the groove, the size of any one of the bilateral notches is ⁇ 30% of the length of the complete groove. .
- the minimum size of the unilateral notch 501 is limited: In the length direction, the size of the unilateral notch 501 of the second bracket 5 is >10% of the complete groove size.
- the minimum size of the bilateral notch 601 is limited: In the length direction, the size of any bilateral notch 601 is >5% of the complete groove length.
- the beneficial effect of the present invention adopting the above structure is that it completely replaces and overturns the problem of torque control between rigid grooves of self-locking brackets and rigid arch wires in the prior art, and realizes elastic control of multi-angle torque of the arch wire ( Because one side of the groove is elastic), it fundamentally solves the problem of excessive concentration of tooth root stress when the archwire is used for torque control at different torsion angles, allowing the archwire torque couple to be expressed softly, making orthodontic treatment safer and more efficient, and the teeth Easier to achieve ideal torque, shaft inclination and position.
- Figure 1 is a schematic top structural view of an embodiment of the present invention.
- Figure 2 is a schematic side structural view of another embodiment of the present invention.
- FIG. 3 is a schematic top structural view of an embodiment of FIG. 2 .
- Figure 4 is a schematic top view of the first bracket of the present invention.
- FIG. 5 is a partially enlarged structural diagram of part A in FIG. 4 .
- Figure 6 is a schematic structural diagram of the second bracket of the present invention.
- Fig. 7 is a schematic top structural view of the third bracket of the present invention.
- Figure 8 is a schematic structural diagram of the self-locking bracket system of the present invention.
- Figure 9 is a schematic diagram of a preferred structure of the elastic tube of the present invention.
- Figure 10 is a schematic structural diagram of the elastic tube in Figure 9 applied to the bracket.
- Figure 11 is a schematic structural diagram of the archwire twisted clockwise relative to the screen.
- Figure 12 is a schematic structural diagram of the archwire being twisted counterclockwise relative to the screen.
- Figure 13 is a schematic structural diagram of the self-locking cover in the open state.
- First bracket 5. Second bracket; 501. Unilateral notch; 6. Third bracket; 601. Bilateral notch; 7. Incisor; 8. Canine; 9. Premolar; 10. Molars; 11. Buccal tube.
- an orthodontic self-locking bracket with controllable arch wire torque includes a bracket body 1.
- a groove 101 is provided in the bracket body 1, and a self-locking bracket is provided at the upper part of the groove 101.
- the cover 102 also includes an elastic member 2.
- the elastic member 2 is connected to one side wall of the groove 101.
- the elastic member 2 and the other side wall of the groove 101 are used to set the arch wire 3.
- the elastic member 2 is on the arch wire 3. It can elastically deform under the action of extrusion, and the elastic member 2 can elastically deform at locations close to the bottom surface of the groove 101 and far away from the bottom surface of the groove 101 to act elastically on the archwire 3 at different torsion angles.
- the design of the elastic member 2 in this solution completely replaces and subverts the role between the rigid grooves of the self-locking brackets and the arch wire with greater torsional stiffness in the existing technology, and realizes the control of the multi-angle torque of the arch wire 3.
- Elastic control (because the groove side is elastic) fundamentally solves the problem of excessive concentration of root stress when the arch wire 3 is torque controlled at different torsion angles, allowing the soft expression of the torque couple of the arch wire 3 to truly realize the use of Teeth achieve ideal torque, axial inclination and position, and orthodontic treatment is safe and efficient. .
- the elastic member 2 is an elastic tube.
- the elastic tube is connected to the side wall of the groove 101.
- the elastic tube 201 can be elastically deformed under the extrusion of the archwire.
- the characteristics of the tubular structure are used to achieve elastic deformation after being squeezed.
- the tubular structure is more stable and reliable, has stronger elastic recovery ability, and has stronger elastic control ability of the archwire 3.
- the side wall of the groove 101 is provided with a clamping slot 103.
- the clamping slot 103 is used to cooperate with the elastic tube 201 so that the outer wall of the elastic tube 201 protrudes from the clamping slot 103.
- the inner wall of the clamping slot 103 and A deformation gap 104 is provided between the elastic tubes 201 , and the deformation gap 104 is used to provide deformation of the elastic tube 201 .
- Designing slots on the side walls of the grooves to accommodate the installation of elastic tubes makes the production and assembly of the entire structure simpler, easier to implement, and cost controllable. It also ensures that the position of the elastic tube will not be affected by the extrusion of the arch wire. Changes occur and are always kept inside the slot to ensure effective elasticity and control of the archwire.
- the axial direction of the elastic tube 201 is perpendicular to the bottom surface of the groove 101, and the elastic tube 201 is at least 100 meters parallel to the bottom surface of the groove 101. There is one.
- the axial direction of the elastic tube 201 is set perpendicular to the bottom direction of the groove 101, which can give full play to the elastic deformation characteristics of the elastic tube 201 at any position in the axial direction, and realize the torque control of the arch wire 3 at any angle. Or when twisting at a counterclockwise angle, the elastic tube 201 can be deformed by the extrusion of the archwire 3, thereby generating control of the elastic force.
- the arch wire when the arch wire is twisted, the arch wire can be squeezed in the direction of the elastic tube 201, and the axial direction of the elastic tube is arranged in the vertical direction. No matter in which direction the arch wire is twisted, the elastic tube will It can deform in response to force, respond to the extrusion of the arch wire in all directions, provide all-round elastic deformation, truly achieve controllable torque, and accurately regulate the elastic force.
- the upper part of the elastic tube 201 is blocked and restricted by the self-locking cover 102.
- the self-locking cover 102 When the self-locking cover 102 is in the maximum open position, it still ensures that it covers the elastic tube 201 to achieve the desired effect.
- the structure of blocking and limiting the elastic tube 201 from coming out is cleverly designed and rationally utilizes the self-locking cover plate.
- the elastic tube 201 is provided with cutting slits 2011 , and the cutting slits 2011 are used to increase the elastic deformation capacity of the elastic tube 201 .
- the design of the cutting slit 2011 allows the elastic tube 201 to have greater deformation ability.
- the cutting slit 2011 can provide more deformation space, making the elastic tube's elastic control range wider. Be more adaptable.
- FIGS. 1 and 4 there are two elastic tubes 201 , which are distributed at both ends in a direction parallel to the bottom surface of the groove 101 .
- the two elastic tubes 201 provided in this solution can adapt to the functional requirements of the self-locking brackets corresponding to the incisors, so that the opening positions on both sides of the groove 101 can elastically control the archwire, which is suitable for the archwire 3 to be placed on the incisors. Torque changes at 7 positions.
- the axial direction of the elastic tube 201 is arranged parallel to the bottom surface of the groove 101 , and at least one elastic tube 201 is provided in a direction perpendicular to the bottom surface of the groove 101 .
- This solution is an alternative to the elastic tube 201 that is arranged axially perpendicular to the bottom surface of the groove 101.
- the elastic tube 201 is arranged with the axial direction parallel to the bottom surface of the groove 101. It can also exert the elastic force control effect of the elastic tube 201. In fact, The usage effect is slightly lower, but it is still better than the existing technology and can achieve better elastic control capabilities.
- two elastic tubes 201 are provided in a direction perpendicular to the bottom surface of the groove 101 , and the two elastic tubes 201 are provided at both ends in a direction perpendicular to the bottom surface of the groove 101 .
- the two elastic tubes 201 provided in this solution can adapt to the functional requirements of the self-locking brackets corresponding to the incisors, so that the opening positions on both sides of the groove 101 can elastically control the archwire, which is suitable for the archwire 3 Torque changes at incisor 7 position.
- the side wall of the groove 101 is integrally formed with a fixing part 105, and the fixing part 105 is provided with a locking groove 103.
- the feature of the fixing part 105 in this solution is different from the self-locking bracket structure in the prior art. It is a completely new structural design and is easy to produce.
- the slot 103 is opened in the fixing part 105, which can achieve stable installation of the archwire 3. Reasonable structure.
- the fixing part 105 is provided in one piece, and the two ends of the fixing part 105 do not exceed the two side end surfaces of the groove 101 in a direction parallel to the bottom surface of the groove 101 .
- the design of the fixed part 105 is completely matched with the elastic tube 201 to ensure that the elastic tube 201 can exert an elastic force on the archwire 3. Therefore, it is necessary to ensure that the two ends of the fixed part 105 cannot exceed the two end surfaces of the groove 101.
- the fixing part 105 can be set as an integrated structure and set on the entire side wall of the groove 101; or the fixing part 105 can be set as a split structure, corresponding to the elastic tubes respectively.
- 201 are arranged and distributed on the side wall of the groove 101.
- the elastic tube 201 is a circular elastic tube.
- the round tube structure is more stable and controllable, and processing, production and installation are easier.
- an orthodontic self-locking bracket system with controllable arch wire torque includes an elastic tube 201 and a plurality of brackets.
- the brackets are provided with grooves 101.
- An elastic tube 201 is provided, and the bracket includes a first bracket 4, a second bracket 5 and a third bracket 6; two elastic tubes 201 of the first bracket 4 are provided in a direction perpendicular to the bottom surface of the groove 101, Two elastic tubes 201 are distributed on both sides in a direction parallel to the bottom surface of the groove 101; one elastic tube 201 of the second bracket 5 is provided in a direction perpendicular to the bottom surface of the groove 101, and one elastic tube 201 is provided in a direction parallel to the bottom surface of the groove 101.
- the bottom surface direction of the groove 101 is distributed on one side of the groove 101; the third bracket 6 has one elastic tube 201 along the direction perpendicular to the bottom surface of the groove 101, and one elastic tube 201 along the direction parallel to the bottom surface of the groove 101.
- the first bracket 4 is set on the incisor 7, the second bracket 5 is set on the canine 8, the third bracket 6 is set on the premolar 9, the first bracket 4 and the second bracket are The slot 5 and the third bracket 6 cooperate with each other to enable the archwire 3 to produce different orthodontic forces corresponding to different tooth parts.
- the first bracket 4 is installed on the incisor 7, the second bracket 5 is installed on the canine 8, and the third bracket 6 is installed on the premolar 9.
- the first bracket 4, the second bracket 5 and the third bracket are used.
- the elastic tubes 201 of the three brackets 6 are arranged ingeniously and differently, which enables the archwire 3 in the self-ligating bracket system to generate different correction forces at the positions corresponding to different brackets, so that there is no need to be unusual when applying torque to the incisors 7 Accurately, the elastic tube 201 of the first bracket 4 can ensure the slow release of stress and avoid the negative effects of excessive stress absorption in the root apex area; the second bracket 5 provides the archwire with a movement clearance close to the incisor 7 side.
- the free positions on both sides of the elastic tube 201 of the third bracket 6 can provide movement clearance for the archwire 3, so that the premolars 9 are not prone to mesialization. Inclination leads to loss of anchorage. Adding a rocking chair archwire can also reduce the friction between the rocking chair archwire and the third bracket 6. There is no need for excessive orthodontic force to cause movement of unrelated teeth.
- the molar 10 is provided with a buccal tube 11 for locking the archwire 3.
- the orthodontic self-ligating bracket system in this solution is shown in Figure 8 as being applied to the upper teeth, those skilled in the art can know that it is also applicable to the mandibular teeth.
- the brackets provided on the mandibular incisors can use the first bracket 4 or the inelastic tube 201 structure
- the existing bracket structure can be flexibly selected according to the different orthodontic needs of the mandibular teeth.
- the second bracket 5 is disposed on the canine 8, and the side of the groove 101 where the elastic tube 201 is not provided is disposed toward the incisor 7 to allow the archwire 3 to move.
- a movement clearance is provided for the side of the archwire 3 facing the incisors 7, reducing the additional pulling force of the archwire 3 on the incisors 7, and also eliminating the impact of the archwire 3 on the incisors 7 in time.
- the downward ineffective pulling force prevents the incisors 7 from being elongated outward and prevents the incisors 7 from deepening the overbite.
- the third bracket 6 is placed on the other premolar 9 that has not been extracted.
- the free positions on both sides of the elastic tube 201 are used to reduce the friction force generated by the rocking chair-shaped archwire and the third bracket 6 .
- the tooth extraction operation is basically to extract the premolars 9 and then use the gap to align the dentition and retract the front teeth, after one of the premolars 9 is extracted, it will be in the groove 101 of the bracket.
- Add a rocking chair archwire is a special name for the archwire form added in the field of orthodontics during the tooth gap stage.
- the curved shape of the rocking chair archwire will pull and displace the teeth on both sides of the gap.
- the free positions on both sides of the elastic tube 201 of the third bracket 6 provide movement clearance for the rocking chair-shaped arch wire, effectively reducing the ineffective friction generated between the bending position of the rocking chair-shaped arch wire and the third bracket 6 force, thus reducing the correction force generated by the archwire of the entire system and preventing irrelevant teeth from moving.
- the fixing portion 105 of the first bracket 4 can be continuously and integrally provided along the side wall of the groove 101 .
- the second bracket 5 is provided with a single-sided notch 501, and the single-sided notch 501 corresponds to the side wall position of the groove 101 that is not filled by the fixing part 105.
- the groove 5 causes the archwire 3 to lose its corrective force, so the maximum size of the unilateral notch 501 is limited: in the length direction of the groove 101, the size of the unilateral notch 501 of the second bracket 5 ⁇ the entire groove 60% of 101 length dimension.
- the third bracket 6 is provided with double-sided notches 601, and the double-sided notches 601 correspond to the side wall positions of the groove 101 that are not filled by the fixing part 105.
- the size of the bilateral notch 601 of the groove 6 is too large, causing the archwire to lose its corrective force. Therefore, the maximum size of the bilateral notch 601 is limited: in the length direction of the groove 101, the size of any bilateral notch 601 ⁇ 30% of the complete groove 101 length dimension.
- the minimum size of the unilateral notch 501 is limited: In the length direction of the groove 101, the size of the single-side notch 501 of the second bracket 5 is >10% of the complete groove size.
- the minimum size of the bilateral notch 601 is limited. : In the length direction of the groove 101, the size of any bilateral notch 601 is >5% of the length of the complete groove 101.
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Abstract
一种弓丝转矩可控的正畸自锁托槽及系统，包括托槽主体（1），托槽主体（1）内设有槽沟（101），槽沟（101）的上部设有自锁盖板（102），还包括弹性件（2），弹性件（2）连接于槽沟（101）的一侧壁，弹性件（2）和槽沟（101）的另一侧壁用于设置弓丝（3），弹性件（2）在弓丝（3）的挤压作用下能够发生弹性变形，以弹性作用于不同扭转角度的弓丝（3）。弹性件（2）的设计，实现了对弓丝（3）多角度转矩的弹性控制，从根本上解决了弓丝（3）在不同扭转角度进行转矩控制时出现牙根应力过于集中的问题，使得弓丝（3）转矩力偶柔和表达，正畸治疗更加安全高效，牙齿更易获得理想的转矩、轴倾度和位置。
Description
本发明涉及一种弓丝转矩可控的正畸自锁托槽及系统。
牙齿正畸自锁托槽是通过托槽的自锁结构替代传统结扎操作，减小了托槽槽沟与弓丝之间的摩擦力，具有临床操作便捷高效、矫治力柔和、牙移动快等优点。
正畸治疗可以根据所使用弓丝的粗细大致分为两个阶段，第一阶段是早期使用细弓丝作用于牙齿托槽槽沟，对牙齿进行排齐整平，第二阶段是使用粗弓丝对牙齿进行控根，使牙齿获得理想的转矩、轴倾度和位置，兼顾功能与美观。但目前现有技术中的自锁托槽存在以下缺陷：当自锁托槽使用粗弓丝时，粗弓丝置于托槽的槽沟内，粗弓丝尺寸必定小于槽沟尺寸（因为全尺寸的弓丝很难完全入槽，或矫治力过大），这就导致槽沟内壁与粗弓丝之间不可避免的存在余隙，即使有弹性的自锁自锁盖板结构也无法消除余隙，会直接影响托槽预设数据的精准表达，影响矫治疗程和效果；另外，粗弓丝在对牙齿进行控根时，需要进行扭转来获得理想的转矩，但是目前的自锁托槽和弓丝在配合使用时，因为多个自锁托槽的位置、角度都有各种差异变化，医师在对弓丝进行扭转时，很难精确控制弓丝最终的转矩大小，转矩过大容易对牙齿造成不可逆的损伤，导致矫正后牙根吸收变短甚至牙齿松动等问题；转矩过小无法实现理想的牙移动，正畸疗程增加甚至无法实现理想的正畸目标。
本发明提供了一种弓丝转矩可控的正畸自锁托槽及系统，其结构设计合理，在自锁托槽的槽沟内设置全新的弹性件结构，替代和颠覆现有技术中的自锁托槽刚性槽沟与刚性弓丝进行转矩控制的难题，从根本上解决了弓丝在不同扭转角度进行转矩控制时出现牙根应力过于集中的问题，使得弓丝转矩力偶柔和表达，大大降低了正畸过程中牙根吸收的风险，避免和消除正畸过程中对牙齿的损伤，医师临床操作使用更加便捷高效，解决了现有技术中存在的问题。
本发明为解决上述技术问题所采用的技术方案是：一种弓丝转矩可控的正畸自锁托槽，包括托槽主体，所述托槽主体内设有槽沟，所述槽沟的上部设有自锁盖板，还包括弹性件，所述弹性件连接于所述槽沟的一侧壁，所述弹性件和所述槽沟的另一侧壁用于设置弓丝，所述弹性件在所述弓丝的挤压作用下能够发生弹性变形，且所述弹性件在靠近所述槽沟底面和远离所述槽沟底面的部位均能够发生弹性变形，以弹性作用于不同扭转角度的弓丝。本方案中弹性件的设计，完全替代和颠覆现有技术中的自锁托槽刚性槽沟与刚性弓丝进行转矩控制的难题，实现了对弓丝多角度转矩的弹性控制（因槽沟一侧有弹性），从根本上解决了弓丝在不同扭转角度进行转矩控制时出现牙根应力过于集中的问题，使得弓丝转矩力偶柔和表达，大大降低了正畸过程中牙根吸收的风险，真正实现了使牙齿获得理想的转矩、轴倾度和位置，正畸治疗安全高效，避免和消除正畸过程中对牙齿的损伤，医师临床操作使用更加便捷高效。
进一步的，所述弹性件设为弹性管，所述弹性管连接于所述槽沟的侧壁，所述弹性管在所述弓丝的挤压下能够发生弹性变形。本方案中利用管状结构的特点，能够做到受到挤压后的弹性变形，管状结构更加稳定可靠，弹性恢复能力更强，对弓丝的弹性控制能力更强。
进一步的，所述槽沟的侧壁设有卡槽，所述卡槽用于和所述弹性管配合，使所述弹性管的外侧壁凸出于所述卡槽设置，所述卡槽内壁和所述弹性管之间设有变形缝隙，所述变形缝隙用于供给所述弹性管的变形。在槽沟侧壁设计卡槽来配合安装弹性管的方案，使整个结构的生产和组装更加简便，容易实现，成本可控，而且能够确保弹性管的位置不会因为受到弓丝的挤压而发生变化，始终保持在卡槽内部，确保对弓丝进行有效的弹性作用和控制。
进一步的，所述弹性管的轴向垂直于所述槽沟的底面设置，且所述弹性管沿平行于所述槽沟的底面方向至少设有一个。弹性管的轴向垂直于槽沟的底面方向设置，能够充分发挥弹性管轴向的任意位置弹性变形特点，实现对弓丝的任意角度转矩控制，当弓丝发生正时针或逆时针角度的扭转时，弹性管都能够接受到弓丝的挤压发生形变，从而产生弹性作用力的控制。
进一步的，所述弹性管设有两个，沿平行于所述槽沟的底面方向分布设置在两端。本方案中设置的两个弹性管，能够适应于切牙对应的自锁托槽功能需求，使槽沟的两侧开口位置均能够对弓丝进行弹性控制，适合弓丝在切牙位置的转矩变化。
进一步的，所述弹性管的轴向平行于所述槽沟的底面设置，且所述弹性管沿垂直于所述槽沟底面的方向至少设有一个。本方案为前述轴向垂直于槽沟底面设置的弹性管的替代方案，采用弹性管的轴向平行于所述槽沟的底面设置，同样能够发挥出弹性管的弹力控制作用，实际使用效果略低，但依旧优于现有技术，能够起到更好的弹性控制能力。
进一步的，所述弹性管沿垂直于所述槽沟底面的方向设有两个，两个所述弹性管沿垂直于所述槽沟底面的方向设置于两端。同样的，本方案中设置的两个弹性管，能够适应于切牙对应的自锁托槽功能需求，使槽沟的两侧开口位置均能够对弓丝进行弹性控制，适合弓丝在切牙位置的转矩变化。
进一步的，所述槽沟的侧壁一体成型有固定部，所述固定部设有所述卡槽。本方案中的固定部特征，区别于现有技术中的自锁托槽结构，是全新的结构设计，生产简便，卡槽开设于固定部，能够实现对弓丝的稳定安装，结构合理。
进一步的，所述固定部一体式设置，所述固定部的两端沿平行于所述槽沟底面方向不超过所述槽沟的两侧端面。本方案中固定部的设计完全配套于所述弹性管，确保弹性管能够发挥对弓丝的弹性作用力，因此要确保固定部的两端不能超过槽沟的两侧端面。同时，当弹性管出现两个甚至多个时，固定部的可以设置为一体式结构，设置在整个槽沟侧壁；或者，固定部可以设置为分体式结构，分别对应弹性管设置，分布于所述槽沟侧壁。
进一步的，所述弹性管设有切割缝，所述切割缝用于增加弹性管的弹性变形能力。切割缝的设计，使弹性管拥有更大的变形能力，当弹性管受到弓丝的挤压后，切割缝能够提供更多的变形空间，使弹性管的弹性控制范围更大，适应能力更强。
进一步的，所述弹性管设为圆形弹性管。圆管结构更加稳定可控，加工生产安装更加简便。
一种弓丝转矩可控的正畸自锁托槽系统，包括所述的弹性管，还包括有多个托槽，所述托槽设有所述槽沟，所述槽沟内设有所述弹性管，所述托槽包括第一托槽、第二托槽和第三托槽；
所述第一托槽的所述弹性管沿垂直于所述槽沟底面的方向设有两个，两个所述弹性管沿平行于所述槽沟的底面方向分布设置在两侧；
所述第二托槽的所述弹性管沿垂直于所述槽沟底面的方向设有一个，一个所述弹性管沿平行于所述槽沟的底面方向分布在所述槽沟的其中一侧；
所述第三托槽的所述弹性管沿垂直于所述槽沟底面的方向设有一个，一个所述弹性管沿平行于所述槽沟的底面方向分布在所述槽沟的中部；
所述第一托槽设置于切牙，所述第二托槽设置于尖牙，所述第三托槽设置于前磨牙，所述第一托槽、第二托槽和第三托槽相互配合，使弓丝实现在不同牙齿部位对应产生不同的矫治力。
本方案将第一托槽安装在切牙、第二托槽安装在尖牙、第三托槽安装在前磨牙，利用第一托槽、第二托槽和第三托槽的弹性管巧妙且区别设置，能够使托槽系统的弓丝在对应不同托槽的位置产生不同的矫治力，使得在切牙上施加转矩时无需非常精确，第一托槽的弹性管能够确保应力的缓慢释放避免出现牙根尖区应力过大吸收的负作用；第二托槽为弓丝提供靠近切牙一侧的活动余隙，不容易因尖牙的牙轴导致切牙覆合加深；第三托槽的弹性管的两侧空余位置能够为弓丝提供活动余隙，使前磨牙不易于产生近中倾斜导致支抗丢失，当加摇椅形弓丝后也能减少摇椅形弓丝和第三托槽之间的摩擦力，不需要出现过大矫治力导致无关牙齿发生移动。
需要强调的是，本方案中的正畸自锁托槽系统虽然在附图中表达的是应用于上颌牙齿，但本领域技术人员能够得知同样适用于下颌牙齿，当本方案的正畸自锁托槽系统应用于下颌时，考虑到下颌切牙的尺寸相对于上颌切牙较小，因此设置在下颌切牙的托槽可以采用第一托槽，也可以采用无弹性管结构的现有托槽结构，根据下颌牙齿的不同矫治需求可灵活选择。
进一步的，所述第二托槽设置于尖牙，其未设置弹性管的槽沟侧边朝向切牙设置，以供弓丝移动。通过第二托槽的结构变化，为弓丝朝向切牙一侧提供活动余隙，减小弓丝对切牙的额外拉力，也及时能够消除弓丝对切牙产生向下的无效拉力，避免切牙被向外拉长，避免切牙覆合加深。
进一步的，牙齿同侧的所述前磨牙具有两颗，其中一颗前磨牙拔除后，所述第三托槽设置于另一颗未拔除的前磨牙，所述第三托槽的弹性管的两侧空余位置用于减小摇椅形弓丝和所述第三托槽产生的摩擦力。在本实施例中，因为拔牙操作基本都是对前磨牙进行拔除后利用此间隙排齐牙列、内收前牙，因此其中一个前磨牙拔出后，在正畸托槽的槽沟内加摇椅形弓丝，摇椅形弓丝是牙齿正畸领域对牙齿关缝阶段增加的一种特殊弓丝形态的叫法，摇椅形弓丝呈弯曲状会将牙缝两侧的牙齿进行拉动位移，而第三托槽的弹性管的两侧空余位置，则为摇椅形弓丝提供活动余隙，有效减小摇椅形弓丝的弯曲位置和第三托槽之间产生的无效摩擦力，进而减小整个系统弓丝产生的矫治力，避免无关牙齿发生移动。
进一步的，所述第一托槽的固定部能够沿所述槽沟侧壁连续一体设置。
进一步的，所述第二托槽设有单侧缺口，所述单侧缺口对应所述固定部未填满的槽沟侧壁位置，为了避免第二托槽的导致弓丝失去该有的矫治力，因此对单侧缺口501的最大尺寸进行限定：在所述槽沟的长度方向，所述第二托槽的单侧缺口的尺寸≤整个槽沟长度尺寸的60%。
进一步的，所述第三托槽设有双侧缺口，所述双侧缺口对应所述固定部未填满的槽沟侧壁位置，为了避免第三托槽6的双侧缺口601尺寸过大，导致弓丝失去该有的矫治力，因此对双侧缺口601的最大尺寸进行限定：在所述槽沟的长度方向，任意一个所述双侧缺口的尺寸≤完整槽沟长度尺寸的30%。
进一步的，为了避免第二托槽5的单侧缺口501尺寸过小，导致弓丝的活动余隙不够而无法达到减小摩擦作用，对单侧缺口501的最小尺寸进行限定：在槽沟的长度方向，第二托槽5的单侧缺口501的尺寸＞完整槽沟尺寸的10%。
进一步的，为了避免第三托槽6的双侧缺口601尺寸过小，导致弓丝的活动余隙不够而无法达到减小摩擦作用，对双侧缺口601的最小尺寸进行限定：在槽沟的长度方向，任意一个双侧缺口601的尺寸＞完整槽沟长度尺寸的5%。
本发明采用上述结构的有益效果是，完全替代和颠覆现有技术中的自锁托槽刚性槽沟与刚性弓丝进行转矩控制的难题，实现了对弓丝多角度转矩的弹性控制（因槽沟一侧有弹性），从根本上解决了弓丝在不同扭转角度进行转矩控制时出现牙根应力过于集中的问题，使得弓丝转矩力偶柔和表达，正畸治疗更加安全高效，牙齿更易获得理想的转矩、轴倾度和位置。
图1为本发明的一种实施方式的俯视结构示意图。
图2为本发明的另一种实施方式的侧视结构示意图。
图3为图2的一种实施方式的俯视结构示意图。
图4为本发明第一托槽的俯视结构示意图。
图5为图4中A部的局部放大结构示意图。
图6为本发明第二托槽的俯视结构示意图。
图7为本发明第三托槽的俯视结构示意图。
图8为本发明自锁托槽系统的结构示意图。
图9为本发明弹性管的一种优选结构示意图。
图10为图9弹性管应用于托槽的结构示意图。
图11为弓丝相对屏幕顺时针扭转状态的结构示意图。
图12为弓丝相对屏幕逆时针扭转状态的结构示意图。
图13为自锁盖板打开状态的结构示意图。
图中，
1、托槽主体；101、槽沟；102、自锁盖板；103、卡槽；104、变形缝隙；105、固定部；
2、弹性件；201、弹性管；2011、切割缝；
3、弓丝；
4、第一托槽；5、第二托槽；501、单侧缺口；6、第三托槽；601、双侧缺口；7、切牙；8、尖牙；9、前磨牙；10、磨牙；11、颊面管。
为能清楚说明本方案的技术特点，下面通过具体实施方式，并结合其附图，对本发明进行详细阐述。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
如图1-13所示，一种弓丝转矩可控的正畸自锁托槽，包括托槽主体1，托槽主体1内设有槽沟101，槽沟101的上部设有自锁盖板102，还包括弹性件2，弹性件2连接于槽沟101的一侧壁，弹性件2和槽沟101的另一侧壁用于设置弓丝3，弹性件2在弓丝3的挤压作用下能够发生弹性变形，且弹性件2在靠近槽沟101底面和远离槽沟101底面的部位均能够发生弹性变形，以弹性作用于不同扭转角度的弓丝3。本方案中弹性件2的设计，完全替代和颠覆现有技术中的自锁托槽刚性槽沟与抗扭刚度较大的弓丝之间的作用，实现了对弓丝3多角度转矩的弹性控制（因槽沟一侧有弹性），从根本上解决了弓丝3在不同扭转角度进行转矩控制时出现牙根应力过于集中的问题，使得弓丝3转矩力偶柔和表达真正实现了使牙齿获得理想的转矩、轴倾度和位置，正畸治疗安全高效。。
在优选的实施例中，弹性件2设为弹性管，弹性管连接于槽沟101的侧壁，弹性管201在弓丝的挤压下能够发生弹性变形。本方案中利用管状结构的特点，能够做到受到挤压后的弹性变形，管状结构更加稳定可靠，弹性恢复能力更强，对弓丝3的弹性控制能力更强。
在优选的实施例中，槽沟101的侧壁设有卡槽103，卡槽103用于和弹性管201配合，使弹性管201的外侧壁凸出于卡槽103设置，卡槽103内壁和弹性管201之间设有变形缝隙104，变形缝隙104用于供给弹性管201的变形。在槽沟侧壁设计卡槽来配合安装弹性管的方案，使整个结构的生产和组装更加简便，容易实现，成本可控，而且能够确保弹性管的位置不会因为受到弓丝的挤压而发生变化，始终保持在卡槽内部，确保对弓丝进行有效的弹性作用和控制。
在优选的实施例中，如附图1、4、6、8所示，弹性管201的轴向垂直于槽沟101的底面设置，且弹性管201沿平行于槽沟101的底面方向至少设有一个。弹性管201的轴向垂直于槽沟101的底面方向设置，能够充分发挥弹性管201轴向的任意位置弹性变形特点，实现对弓丝3的任意角度转矩控制，当弓丝3发生正时针或逆时针角度的扭转时，弹性管201都能够接受到弓丝3的挤压发生形变，从而产生弹性作用力的控制。
如附图11和12所示，当弓丝发生扭转时，弓丝可向弹性管201方向挤压，弹性管的轴向沿竖直方向设置，无论弓丝沿什么方向发生扭转，弹性管均能够对应受力发生形变，可全方位对应覆盖弓丝的挤压，提供全方位全覆盖的弹性变形，真正实现转矩可控，进行弹性作用力的精确调控。
需要强调的是，如附图12所示，弹性管201的上方由自锁盖板102进行封堵限制，自锁盖板102处于最大打开位置时，依旧确保其覆盖弹性管201，以起到阻挡和限制弹性管201脱出，设计巧妙，合理利用自锁盖板的结构。
在优选的实施例中，如附图10所示，弹性管201设有切割缝2011，切割缝2011用于增加弹性管201的弹性变形能力。切割缝2011的设计，使弹性管201拥有更大的变形能力，当弹性管201受到弓丝的挤压后，切割缝2011能够提供更多的变形空间，使弹性管的弹性控制范围更大，适应能力更强。
在优选的实施例中，如附图1、4所示，弹性管201设有两个，沿平行于槽沟101的底面方向分布设置在两端。本方案中设置的两个弹性管201，能够适应于切牙对应的自锁托槽功能需求，使槽沟101的两侧开口位置均能够对弓丝进行弹性控制，适合弓丝3在切牙7位置的转矩变化。
在可替换的实施例中，如附图2和3所示，弹性管201的轴向平行于槽沟101的底面设置，且弹性管201沿垂直于槽沟101底面的方向至少设有一个。本方案为前述轴向垂直于槽沟101底面设置的弹性管201的替代方案，采用弹性管201的轴向平行于槽沟101的底面设置，同样能够发挥出弹性管201的弹力控制作用，实际使用效果略低，但依旧优于现有技术，能够起到更好的弹性控制能力。
在优选的实施例中，弹性管201沿垂直于槽沟101底面的方向设有两个，两个弹性管201沿垂直于槽沟101底面的方向设置于两端。同样的，本方案中设置的两个弹性管201，能够适应于切牙对应的自锁托槽功能需求，使槽沟101的两侧开口位置均能够对弓丝进行弹性控制，适合弓丝3在切牙7位置的转矩变化。
在优选的实施例中，槽沟101的侧壁一体成型有固定部105，固定部105设有卡槽103。本方案中的固定部105特征，区别于现有技术中的自锁托槽结构，是全新的结构设计，生产简便，卡槽103开设于固定部105，能够实现对弓丝3的稳定安装，结构合理。
在优选的实施例中，固定部105一体式设置，固定部105的两端沿平行于槽沟101底面方向不超过槽沟101的两侧端面。本方案中固定部105的设计完全配套于弹性管201，确保弹性管201能够发挥对弓丝3的弹性作用力，因此要确保固定部105的两端不能超过槽沟101的两侧端面。同时，当弹性管201出现两个甚至多个时，固定部105的可以设置为一体式结构，设置在整个槽沟101侧壁；或者，固定部105可以设置为分体式结构，分别对应弹性管201设置，分布于槽沟101侧壁。
在优选的实施例中，弹性管201设为圆形弹性管。圆管结构更加稳定可控，加工生产安装更加简便。
如附图8所示，一种弓丝转矩可控的正畸自锁托槽系统，包括的弹性管201，还包括有多个托槽，托槽设有槽沟101，槽沟101内设有弹性管201，托槽包括第一托槽4、第二托槽5和第三托槽6；第一托槽4的弹性管201沿垂直于槽沟101底面的方向设有两个，两个弹性管201沿平行于槽沟101的底面方向分布设置在两侧；第二托槽5的弹性管201沿垂直于槽沟101底面的方向设有一个，一个弹性管201沿平行于槽沟101的底面方向分布在槽沟101的其中一侧；第三托槽6的弹性管201沿垂直于槽沟101底面的方向设有一个，一个弹性管201沿平行于槽沟101的底面方向分布在槽沟101的中部；第一托槽4设置于切牙7，第二托槽5设置于尖牙8，第三托槽6设置于前磨牙9，第一托槽4、第二托槽5和第三托槽6相互配合，使弓丝3实现在不同牙齿部位对应产生不同的矫治力。本方案将第一托槽4安装在切牙7、第二托槽5安装在尖牙8、第三托槽6安装在前磨牙9，利用第一托槽4、第二托槽5和第三托槽6的弹性管201巧妙且区别设置，能够使自锁托槽系统中的弓丝3在对应不同托槽的位置产生不同的矫治力，使得在切牙7上施加转矩时无需非常精确，第一托槽4的弹性管201能够确保应力的缓慢释放避免出现牙根尖区应力过大吸收的负作用；第二托槽5为弓丝提供靠近切牙7一侧的活动余隙，不容易因尖牙8的牙轴导致切牙7覆合加深；第三托槽6的弹性管201的两侧空余位置能够为弓丝3提供活动余隙，使前磨牙9不易于产生近中倾斜导致支抗丢失，当加摇椅形弓丝后也能减少摇椅形弓丝和第三托槽6之间的摩擦力，不需要出现过大矫治力导致无关牙齿发生移动。在前磨牙9的后侧是磨牙10，磨牙10设置颊面管11，用来锁定弓丝3。
需要强调的是，本方案中的正畸自锁托槽系统虽然在附图8中表达的是应用于上颌牙齿，但本领域技术人员能够得知同样适用于下颌牙齿，当本方案的正畸自锁托槽系统应用于下颌时，考虑到下颌切牙的尺寸相对于上颌切牙较小，因此设置在下颌切牙的托槽可以采用第一托槽4，也可以采用无弹性管201结构的现有托槽结构，根据下颌牙齿的不同矫治需求可灵活选择。
在优选的实施例中，第二托槽5设置于尖牙8，其未设置弹性管201的槽沟101侧边朝向切牙7设置，以供弓丝3移动。通过第二托槽5的结构变化，为弓丝3朝向切牙7一侧提供活动余隙，减小弓丝3对切牙7的额外拉力，也及时能够消除弓丝3对切牙7产生向下的无效拉力，避免切牙7被向外拉长，避免切牙7覆合加深。
在优选的实施例中，牙齿同侧的前磨牙9具有两颗，其中一颗前磨牙9拔除后，第三托槽6设置于另一颗未拔除的前磨牙9，第三托槽6的弹性管201的两侧空余位置用于减小摇椅形弓丝和第三托槽6产生的摩擦力。在本实施例中，因为拔牙操作基本都是对前磨牙9进行拔除后利用此间隙排齐牙列、内收前牙，因此其中一个前磨牙9拔出后，在托槽的槽沟101内加摇椅形弓丝，摇椅形弓丝是牙齿正畸领域对牙齿关缝阶段增加的一种特殊弓丝形态的叫法，摇椅形弓丝呈弯曲状会将牙缝两侧的牙齿进行拉动位移，而第三托槽6的弹性管201的两侧空余位置，则为摇椅形弓丝提供活动余隙，有效减小摇椅形弓丝的弯曲位置和第三托槽6之间产生的无效摩擦力，进而减小整个系统弓丝产生的矫治力，避免无关牙齿发生移动。
在优选的实施例中，如附图4所示，第一托槽4的固定部105能够沿槽沟101侧壁连续一体设置。
在优选的实施例中，如附图6所示，第二托槽5设有单侧缺口501，单侧缺口501对应固定部105未填满的槽沟101侧壁位置，为了避免第二托槽5的导致弓丝3失去该有的矫治力，因此对单侧缺口501的最大尺寸进行限定：在槽沟101的长度方向，第二托槽5的单侧缺口501的尺寸≤整个槽沟101长度尺寸的60%。
优选的，图6中弹性管201设置为两个，能够对弓丝3提供更加均衡稳定的弹性控制。
在优选的实施例中，如附图7所示，第三托槽6设有双侧缺口601，双侧缺口601对应固定部105未填满的槽沟101侧壁位置，为了避免第三托槽6的双侧缺口601尺寸过大，导致弓丝失去该有的矫治力，因此对双侧缺口601的最大尺寸进行限定：在槽沟101的长度方向，任意一个双侧缺口601的尺寸≤完整槽沟101长度尺寸的30%。
优选的，图7中弹性管201设置为两个，能够对弓丝3提供更加均衡稳定的弹性控制。
在优选的实施例中，为了避免第二托槽5的单侧缺口501尺寸过小，导致弓丝的活动余隙不够而无法达到减小摩擦作用，对单侧缺口501的最小尺寸进行限定：在槽沟101的长度方向，第二托槽5的单侧缺口501的尺寸＞完整槽沟尺寸的10%。
在优选的实施例中，为了避免第三托槽6的双侧缺口601尺寸过小，导致弓丝3的活动余隙不够而无法达到减小摩擦作用，对双侧缺口601的最小尺寸进行限定：在槽沟101的长度方向，任意一个双侧缺口601的尺寸＞完整槽沟101长度尺寸的5%。
上述具体实施方式不能作为对本发明保护范围的限制，对于本技术领域的技术人员来说，对本发明实施方式所做出的任何替代改进或变换均落在本发明的保护范围内。
本发明未详述之处，均为本技术领域技术人员的公知技术。
Claims (10)
- 一种弓丝转矩可控的正畸自锁托槽，包括托槽主体，所述托槽主体内设有槽沟，所述槽沟的上部设有自锁盖板，其特征在于，还包括弹性件，所述弹性件连接于所述槽沟的一侧壁，所述弹性件和所述槽沟的另一侧壁用于设置弓丝，所述弹性件在所述弓丝的挤压作用下能够发生弹性变形，且所述弹性件在靠近所述槽沟底面和远离所述槽沟底面的部位均能够发生弹性变形，以弹性作用于不同扭转角度的弓丝。
- 根据权利要求1所述的一种弓丝转矩可控的正畸自锁托槽，其特征在于，所述弹性件设为弹性管，所述弹性管连接于所述槽沟的侧壁，所述弹性管在所述弓丝的挤压下能够发生弹性变形。
- 根据权利要求2所述的一种弓丝转矩可控的正畸自锁托槽，其特征在于，所述槽沟的侧壁设有卡槽，所述卡槽用于和所述弹性管配合，使所述弹性管的外侧壁凸出于所述卡槽设置，所述卡槽内壁和所述弹性管之间设有变形缝隙，所述变形缝隙用于供给所述弹性管的变形。
- 根据权利要求2或3所述的一种弓丝转矩可控的正畸自锁托槽，其特征在于，所述弹性管的轴向垂直于所述槽沟的底面设置，且所述弹性管沿平行于所述槽沟的底面方向至少设有一个。
- 根据权利要求4所述的一种弓丝转矩可控的正畸自锁托槽，其特征在于，所述弹性管设有两个，沿平行于所述槽沟的底面方向分布设置在两端。
- 根据权利要求2或3所述的一种弓丝转矩可控的正畸自锁托槽，其特征在于，所述弹性管的轴向平行于所述槽沟的底面设置，且所述弹性管沿垂直于所述槽沟底面的方向至少设有一个。
- 根据权利要求6所述的一种弓丝转矩可控的正畸自锁托槽，其特征在于，所述弹性管沿垂直于所述槽沟底面的方向设有两个，两个所述弹性管沿垂直于所述槽沟底面的方向设置于两端。
- 根据权利要求3所述的一种弓丝转矩可控的正畸自锁托槽，其特征在于，所述槽沟的侧壁一体成型有固定部，所述固定部设有所述卡槽。
- 根据权利要求2所述的一种弓丝转矩可控的正畸自锁托槽，其特征在于，所述弹性管设有切割缝，所述切割缝用于增加弹性管的弹性变形能力。
- 一种弓丝转矩可控的正畸自锁托槽系统，其特征在于，包括权利要求2-9任意一项所述的弹性管，还包括有多个托槽，所述托槽设有所述槽沟，所述槽沟内设有所述弹性管，所述托槽包括第一托槽、第二托槽和第三托槽；所述第一托槽的所述弹性管沿垂直于所述槽沟底面的方向设有两个，两个所述弹性管沿平行于所述槽沟的底面方向分布设置在两侧；所述第二托槽的所述弹性管沿垂直于所述槽沟底面的方向设有一个，一个所述弹性管沿平行于所述槽沟的底面方向分布在所述槽沟的其中一侧；所述第三托槽的所述弹性管沿垂直于所述槽沟底面的方向设有一个，一个所述弹性管沿平行于所述槽沟的底面方向分布在所述槽沟的中部；所述第一托槽设置于切牙，所述第二托槽设置于尖牙，所述第三托槽设置于前磨牙，所述第一托槽、第二托槽和第三托槽相互配合，使弓丝实现在不同牙齿部位对应产生不同的矫治力。
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