CN106580489B - Molar appliance with convenient force application - Google Patents
Molar appliance with convenient force application Download PDFInfo
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- CN106580489B CN106580489B CN201710054756.8A CN201710054756A CN106580489B CN 106580489 B CN106580489 B CN 106580489B CN 201710054756 A CN201710054756 A CN 201710054756A CN 106580489 B CN106580489 B CN 106580489B
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- anchorage
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a molar appliance with convenient application of correcting force, which comprises a first belt ring, an anchorage and an expansion device connected in series between the first belt ring and the anchorage; the expansion device comprises a screw rod, two sections of external thread sections are arranged on the screw rod, and the thread directions of the two sections of external thread sections are opposite; each external thread section is in threaded connection with a nut, one nut is fixedly connected with the first belt ring, and the other nut is fixedly connected with the anchorage; the first strap ring is used for being fixed on a molar to be corrected, and the axis direction of the screw is parallel to the far direction of the molar. Adopt this to correct the ware patient and can exert the power of correcting to corresponding tooth by oneself, correct the power and exert easy operation more simultaneously, can effectively reduce patient's number of times of double-layered diagnosis.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a molar appliance with convenient application of orthodontic force.
Background
In the prior art, a molar appliance is mostly used for opening up tooth gaps, adjusting the inter-jaw relationship of molar teeth and the like, and the force application mode of the molar appliance to teeth which are expected to move comprises the application of force by adopting a traditional square wire, the application of force by a spring and the like. The square wire force application and the spring force application are all applied to teeth which are expected to move through the elastic restoring force of corresponding materials: in the square wire arch correction technology, torque control on teeth depends on a third sequence of bending formed on an arch wire, and a spring force application mode mostly passes through a fixed point of a control spring, for example, a mode of changing a connection point of the spring on an anchorage through a ligature wire. The third sequence of bending is used for controlling the size of the correcting force, so that the dependence on the experience of a doctor is strong, the operation is complex, the consumed time is more, and the direction of the force is not convenient to control; when the magnitude of the spring force is adjusted through the ligature wire, the defect that the fixation of the spring is troublesome is also existed.
Disclosure of Invention
Aiming at the problems of the existing molar appliance in use, the invention provides the molar appliance with convenient application of correction force.
The molar appliance with the conveniently applied correcting force solves the problems through the following technical key points: a molar appliance with convenient application of correction force comprises a first belt ring and an anchorage, and also comprises an expansion device which is connected in series between the first belt ring and the anchorage;
the expansion device comprises a screw rod, two sections of external thread sections are arranged on the screw rod, and the thread directions of the two sections of external thread sections are opposite;
each external thread section is in threaded connection with a nut, one nut is fixedly connected with the first belt ring, and the other nut is fixedly connected with the anchorage;
the first strap ring is used for being fixed on a molar to be corrected, and the axis direction of the screw is parallel to the far direction of the molar.
Specifically, the anchorage refers to a structure for resisting a reaction force generated by the correction force, so that the anchorage can adopt an extraoral resistance system, such as an extraoral fit headgear device, a J-shaped hook and the like; intraoral anchorage systems such as combined anchorage, maxillo-mandibular lip block, implant anchorage, etc. may also be used.
In this correction device, on the molar that treats correcting was located to direct cover of first belt loop, the expansion device between first belt loop and the anchorage was as the application part of correcting power, promptly: after first belt loop and anchorage are all fixed in corresponding position department, at the rotation in-process of screw rod, the screw rod pulls two nuts to do and deviates from each other or move in opposite directions along the axis of screw rod, in the nut motion in-process, exert thrust or pulling force as correcting power to first belt loop through corresponding the connecting arm, if the amplification device sets up in the nearly well side of molar, the accessible rotates the screw rod, make the nut that is located far away the side to far away the mid-direction motion, at this moment, the molar can receive a power of far away the mid-direction, finally can reach the mesh that forces the molar to far away the direction removal.
In summary, in the appliance, the corresponding molar is subjected to the correction force in the far direction or the near direction by adjusting the enlarging device, and the structure of the enlarging device is limited so that the enlarging device can be adjusted by only rotating the screw rod. As the technicians in the field, the screw rod is rotated only by applying a torque to the screw rod, so that the molar teeth can reach a certain displacement and need to be operated for multiple times, namely the device is different from the prior art, the correction force application is simpler and more convenient, and a patient can finish one correction force application operation by hands by himself, thereby achieving the purpose of effectively reducing the number of times of the patient's re-diagnosis and being beneficial to the reasonable distribution of limited medical resources; meanwhile, when the appliance is used, the appliance is different from the traditional arch wire or spring, and the expansion device generates less deformation in the radial direction, so that the direction of the appliance is more convenient to control; meanwhile, after the appliance is installed once, the subsequent operation does not need to be carried out, disassembly and adjustment.
The above definition of the screw axis direction enables the appliance to be applied to the fields of light or moderate crowding of the upper and lower dental arch, standard class I molar relationships in cases of tooth extraction or non-tooth extraction, regaining of gaps lost due to early loss of deciduous teeth, etc., as the person skilled in the art knows.
The further technical scheme is as follows:
as a concrete connection form of the expanding device, the first belt ring and the anchorage, the two nuts are respectively connected with the first belt ring and the anchorage through different connecting arms. By adopting the above mode, after the force is corrected for the molar for many times, the connecting arms at one side or two sides of the enlarging device are enabled to generate certain plastic deformation through the tool, and thus, the force correcting direction can be corrected. Simultaneously, current carry out position adjustment to the molar, at far away or nearly well direction, only need the molar move several millimeters can, like this, for the travelling comfort that does benefit to the patient and wear, the total length of screw rod does not need the overlength, if set up tens millimeters can, above adopt the linking arm as intermediate junction spare, but the position that the anchorage can set up of greatly enriched.
For adjust the expansion device for being convenient for, preferably with the expansion device setting in tooth lip side, under this condition, for making the anchorage of this appearance of straightening more firm, anchorage can set up in the oral cavity of tooth inboard wholly or partially, still be provided with the kink on connecting the anchorage and the linking arm that corresponds the nut, the kink is used for making this linking arm stride across the adjacent clearance of tooth. This implementation mode is particularly useful for can not adopt the condition of other teeth as anchorage tooth, if other teeth have not developed into permanent tooth yet, other teeth can not regard as anchorage tooth circumstances such as special circumstances, and at this moment, the accessible kink realizes corresponding redirecting of linking arm, like this, can set up anchorage in the inboard oral cavity of tooth.
In order to adjust the expansion device conveniently, preferably set up the expansion device in tooth labial side, under this condition, can adopt other teeth as one kind, as the realization mode of comparatively firm permanent cuspid as anchorage tooth to make the linking arm between expansion device and the anchorage tooth, the linking arm between first belt wheel and the expansion device all be short as far as possible, in order when applying the power of correcting to the molar, reduce the deformation of expansion device both sides linking arm, in order to reach the purpose that accurate molar received and correct the power direction, still establish ties on the linking arm of connecting anchorage and corresponding nut has the second belt wheel, the second belt wheel is used for fixing on anchorage tooth.
As an implementation that avoids adversely affecting the patient during molar correction, the anchorage includes a lingual base. The tongue side base support is a block structure arranged on the lower side of the tongue and is clamped between the sublingual side and oral cavity soft tissues, so that anchorage which is harmless to a patient and has strong supporting capacity or stability can be obtained.
In order to further enlarge the occupied area of the anchorage and further improve the supporting capacity or stability of the anchorage, a retaining arm is further fixed on the lingual base. The retention arm can be used for connecting anchorage nails and other belt rings fixed on anchorage teeth.
As an implementation scheme that can rectify the left and right sides molar in step, first belt ring is two, and two first belt ring symmetric arrangement all are provided with the expansion device in the both sides of tongue side base plate between two first belt ring and the tongue side base plate. In this scheme, be favorable to improving the stability of tongue side base support position in the oral cavity.
In order to apply torque to the screw rod to enable the screw rod to rotate around the axis of the screw rod, and achieve the purpose of adjusting the relative positions of the two nuts, the screw rod is further provided with a driving section, the driving section is provided with a plurality of holes, and the holes are uniformly distributed in an annular mode relative to the axis of the screw rod. In this scheme, through setting up a plurality of holes, simultaneously through injecing the relative position of a plurality of holes, can all have the hole that corresponds and expose in the position that the patient of being convenient for inserted force application part under can making the screw rod rotate to the optional state, this scheme has improved the convenience of this ware adjustment promptly greatly.
As the patient hardly avoids not applying bending moment on the screw rod while applying torque when adjusting the expansion device, the resistance of adjusting the screw rod is increased by the bending moment, and the application direction of the correcting force and the application size of the correcting force are not easy to control, the expansion device is taken as an implementation scheme capable of improving the rotation smoothness of the screw rod, the driving section is the middle section of the screw rod, and the two sections of external thread sections are respectively positioned on different sides of the driving section.
As an implementation scheme with a self-locking function, threads on the two external thread sections are fine threads. The scheme can ensure that the nuts generate relative motion under the condition of no will as much as possible.
The invention has the following beneficial effects:
in this correction device, make corresponding molar receive far away orientation or nearly well orientation through adjusting the expansion device equivalently and rescue the power, and to the structure of expansion device injectd and make only need rotate the screw rod can realize the regulation of expansion device. As the technicians in the field, the screw rod is rotated to apply only one torque to the screw rod, so that the molar reaches a certain displacement and needs to be operated for multiple times, namely the device is different from the prior art, the correction force application is simpler and more convenient, and a patient can finish one correction force application operation by hands, thereby achieving the purpose of effectively reducing the number of times of the patient's repeated diagnosis and being beneficial to the reasonable distribution of limited medical resources; meanwhile, when the appliance is used, the appliance is different from the traditional arch wire or spring, and the expansion device generates less deformation in the radial direction, so that the direction of the appliance is more convenient to control; meanwhile, after the appliance is installed once, the subsequent operation does not need to be carried out, disassembly and adjustment.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a molar appliance with a convenient application of orthodontic force according to the invention having a second strap loop;
FIG. 2 is a schematic structural view of a molar appliance with ease of application of an orthodontic force according to an embodiment of the invention suitable for use with an inappropriate anchorage tooth as an anchorage fixation point;
FIG. 3 is a schematic view of an embodiment of a molar appliance with convenient application of orthodontic force according to the invention, reflecting the structure of the expansion device and the connection relationship between the expansion device and the connecting arm;
FIG. 4 is a schematic view of a driven rotation segment of an embodiment of a molar appliance for facilitating the application of an orthodontic force of the present invention.
The numbering in the figure is as follows: 1. the device comprises a first belt ring, 2, an expanding device, 21, a nut, 22, a screw rod, 23, a driving section, 3, a second belt ring, 4, a lingual base, 5, a fixing arm, 6 and a connecting arm.
Detailed Description
The present invention will be described in further detail with reference to examples, but the structure of the present invention is not limited to the following examples.
Example 1:
as shown in fig. 1 to 4, a molar appliance with convenient application of an orthodontic force comprises a first belt loop 1 and an anchorage, and further comprises an expanding device connected in series between the first belt loop 1 and the anchorage;
the expansion device comprises a screw rod 22, two sections of external thread sections are arranged on the screw rod 22, and the thread directions of the two sections of external thread sections are opposite;
each external thread section is in threaded connection with a nut 21, one nut 21 is fixedly connected with the first belt ring 1, and the other nut 21 is fixedly connected with the anchorage;
the first belt ring 1 is used for being fixed on a molar to be corrected, and the axial direction of the screw rod 22 is parallel to the far direction of the molar.
Specifically, the anchorage refers to a structure for resisting a reaction force generated by the correction force, so that the anchorage can adopt an extraoral resistance system, such as an extraoral fit headgear device, a J-shaped hook and the like; intraoral anchorage systems such as combined anchorage, maxillo-mandibular lip block, implant anchorage, etc. may also be used.
In this correction device, on first belt loop 1 directly overlaps and locates the molar of treating correcting, the expansion device between first belt loop 1 and the anchorage is as the part of applying of correcting power, promptly: after the first belt ring 1 and the anchorage are fixed at the corresponding positions, in the rotating process of the screw rod 22, the screw rod 22 pulls the two nuts 21 to move away from or towards each other along the axis of the screw rod 22, in the moving process of the nuts 21, a pushing force or a pulling force serving as a correcting force is applied to the first belt ring 1 through the corresponding connecting arm 6, if the enlarging device is arranged on the mesial side of the molar, the screw rod 22 can be rotated through the rotating process, so that the nut 21 positioned on the distal side moves towards the distal direction, at the moment, the molar can bear a force towards the distal direction, and finally, the purpose of forcing the molar to move towards the distal direction can be achieved.
In summary, in the appliance, the corresponding molar is subjected to the correction force in the far direction or the near direction by adjusting the enlarging device, and the structure of the enlarging device is limited so that the screw rod 22 can be rotated to adjust the enlarging device. As the technicians in the field, the screw rod 22 is rotated only by applying a torque to the screw rod 22, so that the molar reaches a certain displacement and needs to be operated for a plurality of times, namely the device is different from the prior art, the correction force application is simpler and more convenient, and a patient can finish one-time correction force application operation by hands, thereby achieving the purpose of effectively reducing the number of times of patient return visits and being beneficial to the reasonable distribution of limited medical resources; meanwhile, when the appliance is used, the appliance is different from the traditional arch wire or spring, and the expansion device generates less deformation in the radial direction, so that the direction of the appliance is more convenient to control; meanwhile, after the appliance is installed once, the subsequent operation does not need to be carried out, disassembly and adjustment.
The above definition of the axial direction of the screw 22 will make the appliance suitable for use in the fields of light or moderate crowding of the upper and lower dental arch, standard class I molar relationships in extracted or non-extracted cases, regaining of gaps lost due to early loss of deciduous teeth, etc.
Example 2:
as shown in fig. 1 to 4, the present embodiment is further defined on the basis of embodiment 1: as a specific form of connection of the enlarging device to the first strap ring 1 and the anchorage, the two nuts 21 are connected to the first strap ring 1 and the anchorage by different connecting arms 6, respectively. By adopting the above mode, after the force is applied to the molar for many times, the connecting arm 6 at one side or two sides of the enlarging device generates certain plastic deformation through the tool, so that the force correcting direction can be corrected. Meanwhile, the position of the existing molar is adjusted, and only the molar needs to move for several millimeters in the far or near direction, so that the total length of the screw rod 22 does not need to be overlong for the comfort of wearing of a patient, if the total length is more than ten millimeters, the connecting arm 6 is adopted as an intermediate connecting piece, and the position where the anchorage can be set can be greatly enriched.
In order to adjust the expansion device conveniently, the expansion device is preferably arranged on the labial side of the teeth, in this case, in order to make the anchorage of the appliance more stable and the anchorage can be wholly or partially arranged in the oral cavity on the inner side of the teeth, a bending part is further arranged on the connecting arm 6 connecting the anchorage and the corresponding nut 21, and the bending part is used for enabling the connecting arm 6 to cross the interproximal space. This implementation mode is particularly useful for can not adopt the condition of other teeth as anchorage tooth, if other teeth have not developed into permanent tooth yet, other teeth can not regard as anchorage tooth etc. because special circumstances, and at this moment, the accessible kink realizes corresponding redirecting of connecting arm 6, like this, can set up the anchorage in the inboard oral cavity of tooth.
In order to facilitate adjustment of the enlarging device, the enlarging device is preferably arranged on the labial side of the teeth, in this case, other teeth can be adopted as a method, such as a stable permanent canine tooth as an anchorage tooth, so that the connecting arm 6 between the enlarging device and the anchorage tooth and the connecting arm 6 between the first belt ring 1 and the enlarging device are as short as possible, so that when a correction force is applied to molar teeth, deformation of the connecting arms 6 on two sides of the enlarging device is reduced, and the purpose of accurately correcting the direction of the force applied to the molar teeth is achieved, a second belt ring 3 is further connected in series to the connecting arm 6 connecting the anchorage and the corresponding nut 21, and the second belt ring 3 is used for being fixed on the anchorage tooth.
As an implementation that avoids adverse effects on the patient during molar correction, the anchorage includes a lingual base 4. The lingual base 4 is a block structure disposed on the lingual side, and is held between the lingual side and the soft oral tissue, so that an anchorage having no harm to the patient, especially avoiding the lingual side from being dented, and having a strong supporting ability or stability can be obtained.
In order to further enlarge the occupied area of the anchorage and further improve the supporting capacity or stability of the anchorage, a retaining arm 5 is further fixed on the lingual base 4. The above retention arm 5 can be used for connecting anchorage nails, other bands fixed on anchorage teeth.
As a can be in step to the implementation scheme that the left and right sides molar was rescued, first belt loop 1 is two, and two first belt loop 1 symmetrical arrangement all are provided with the expansion device in the both sides of tongue side base plate 4 between two first belt loops 1 and the tongue side base plate 4. In the scheme, the stability of the position of the tongue side base support 4 in the oral cavity is improved.
Example 3:
as shown in fig. 1 to fig. 4, the present embodiment provides a more detailed scheme based on embodiment 1: in order to apply torque to the screw 22 to enable the screw to rotate around the axis of the screw, and to achieve the purpose of adjusting the relative positions of the two nuts 21, a driving and rotating section 23 is further arranged on the screw 22, and a plurality of holes are formed in the driving and rotating section 23 and are annularly and uniformly distributed relative to the axis of the screw 22. In this scheme, through setting up a plurality of holes, simultaneously through injecing the relative position of a plurality of holes, can make screw rod 22 rotate to under the arbitrary condition, all have the hole that corresponds and expose in the position that the patient of being convenient for inserted force application part, this scheme has improved the convenience of this appearance adjustment promptly greatly.
As the patient hardly avoids applying a bending moment on the screw rod 22 while applying a torque when adjusting the expansion device, the bending moment increases the adjusting resistance of the screw rod 22, and is not beneficial to controlling the applying direction of the correction force and the applying magnitude of the correction force, the driving section 23 is a middle section of the screw rod 22, and the two sections of external thread sections are respectively positioned at different sides of the driving section 23.
Example 4:
this example is further defined on the basis of example 1: as an implementation scheme with a self-locking function, threads on the two external thread sections are fine threads. This solution ensures as much as possible a relative movement between the nuts 21 in the unintended case.
Example 5:
the embodiment provides a specific implementation scheme, and the embodiment is used for molar correction of permanent teeth or deciduous teeth which can serve as anchorage teeth, wherein as shown in fig. 2, the corrector comprises a first belt ring 1 and an anchorage, and further comprises an expansion device connected in series between the first belt ring 1 and the anchorage;
the expansion device comprises a screw rod 22, two sections of external thread sections are arranged on the screw rod 22, and the thread directions of the two sections of external thread sections are opposite;
each external thread section is in threaded connection with a nut 21, one nut 21 is fixedly connected with the first belt ring 1, and the other nut 21 is fixedly connected with an anchorage;
the first belt ring 1 is used for being fixed on a molar to be corrected, and the axial direction of the screw rod 22 is parallel to the far-middle direction of the molar;
the two nuts 21 are respectively connected with the first belt ring 1 and the anchorage through different connecting arms 6, and a bending part is further arranged on the connecting arm 6 connecting the expanding device and the anchorage.
After the first belt ring 1 is sleeved on a molar to be corrected, a section of connecting arm 6 is welded at the middle upper part of the near-middle side of the lip side of the first belt ring 1, and the connecting arm 6 extends to the near-middle side; anchorage adopts tongue side base support 4 of setting in the tongue below, fixes a linking arm 6 that is used for connecting anchorage and expansion device on it promptly before tongue side base support 4 is not installed simultaneously, and the kink that is used for connecting anchorage and expansion device is stretched out to the labial side of tooth by the slit between cuspid and the two cuspids through above-mentioned linking arm 6 for connecting anchorage and expansion device, and the molar that treats the correction of the free end orientation of this linking arm 6, then, with two nuts 21 on the expansion device respectively with different linking arms 6 welded connection. The first strap ring 1 and the corresponding connecting arm 6 can also be connected by welding in advance between the installation of the first strap ring 1.
Meanwhile, in the embodiment, some parameters for enlarging the size of the components on the device are as follows: outer diameter of upper screw thread section of screw 22: 1.4mm; in order to facilitate the wearing comfort, the shape of the nut 21 is cylindrical; length of single-segment thread section: 12mm; the connecting arm 6 adopts a round wire with the diameter of 1.2mm.
Example 6:
the embodiment provides a specific implementation scheme, and the embodiment is used for molar correction of eruption of permanent teeth or deciduous teeth which can serve as anchorage teeth, as shown in fig. 1, the corrector comprises a first belt ring 1 and an anchorage, and further comprises an expansion device connected in series between the first belt ring 1 and the anchorage;
the expansion device comprises a screw rod 22, two sections of external thread sections are arranged on the screw rod 22, and the thread directions of the two sections of external thread sections are opposite;
each external thread section is in threaded connection with a nut 21, one nut 21 is fixedly connected with the first belt ring 1, and the other nut 21 is fixedly connected with the anchorage;
the first belt ring 1 is used for being fixed on a molar to be corrected, and the axial direction of the screw rod 22 is parallel to the far-middle direction of the molar;
the two nuts 21 are respectively connected with the first belt ring 1 and the anchorage through different connecting arms 6, a second belt ring 3 is further arranged on the connecting arm 6 for connecting the expanding device and the anchorage, and the second belt ring 3 is used for being sleeved on deciduous cuspids or constant cuspids to serve as a part of the anchorage.
After the first belt ring 1 is sleeved on a molar to be corrected, a section of connecting arm 6 is welded at the middle upper part of the near-middle side of the lip side of the first belt ring 1, and the connecting arm 6 extends to the near-middle side; the anchorage further comprises a lingual base 4 arranged below the tongue, a connecting arm 6 for connecting the anchorage and the expansion device is fixed on the lingual base 4 before the lingual base 4 is not installed, and after the second belt ring 3 is installed, the connecting arm 6 for connecting the anchorage and the expansion device is welded with the inner side of the second belt ring 3; and then a connecting arm 6 for connecting the second belt ring 3 with the expansion device is arranged, the connecting arm 6 is fixed in the middle of the far middle side of the lip side of the second belt ring 3, the free end faces towards the molar to be corrected, and then two nuts 21 on the expansion device are respectively connected with the corresponding connecting arms 6 in a welding manner. The first strap ring 1 and the corresponding connecting arm 6 can also be connected by welding in advance between the installation of the first strap ring 1. That is, in this embodiment, the connecting arm 6 for connecting the expansion device and the anchorage comprises two segments, and as a person skilled in the art, the two segments of the connecting arm 6 can be integrally formed.
Meanwhile, in the embodiment, some parameters for enlarging the size of the components on the device are as follows: outer diameter of upper screw thread section of screw 22: 1.4mm; in order to facilitate the wearing comfort, the shape of the nut 21 is cylindrical; length of single-segment thread section: 12mm; the connecting arm 6 is made of round wires with the diameter of 1.2mm.
The foregoing is a further detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the specific embodiments of the present invention be limited to these descriptions. Other embodiments that can be derived by a person skilled in the art without departing from the scope of the present invention are also intended to be included within the scope of the present invention.
Claims (9)
1. A molar appliance with convenient application of correcting force comprises a first belt ring (1) and an anchorage, and is characterized by also comprising an expanding device which is connected in series between the first belt ring (1) and the anchorage;
the expansion device comprises a screw rod (22), two sections of external thread sections are arranged on the screw rod (22), and the thread directions of the two sections of external thread sections are opposite;
each external thread section is in threaded connection with a nut (21), one nut (21) is fixedly connected with the first belt ring (1), and the other nut (21) is fixedly connected with the anchorage;
the first strap ring (1) is used for being fixed on a molar to be corrected, the axial direction of the screw (22) is parallel to the far-middle direction of the molar, and the cross section of the nut (21) is 8-shaped;
the two nuts (21) are respectively connected with the first belt ring (1) and the anchorage through different connecting arms (6), and the connecting arms (6) on one side or two sides of the expanding device generate certain plastic deformation through a tool.
2. The molar appliance with the convenience in applying orthodontic force as claimed in claim 1, wherein the connecting arm (6) connecting the anchorage and the corresponding nut (21) is further provided with a bent portion for enabling the connecting arm (6) to span the interproximal space.
3. The molar appliance convenient for applying orthodontic force as claimed in claim 1, wherein the connecting arm (6) connecting the anchorage and the corresponding nut (21) is further connected in series with a second belt loop (3), the second belt loop (3) being used for fixing on the anchorage tooth.
4. The molar appliance with facilitated application of orthodontic force of claim 2 or 3,
the anchorage comprises a lingual base (4).
5. The appliance of claim 4, wherein the lingual base (4) further comprises a retention arm (5) secured thereto.
6. The molar appliance with the easy application of orthodontic force as claimed in claim 4, wherein the number of the first strap rings (1) is two, and the two first strap rings (1) are symmetrically arranged at two sides of the lingual base (4), and the enlarging device (2) is arranged between the two first strap rings (1) and the lingual base (4).
7. The molar appliance with the application of correction force convenient to claim 1, characterized in that the screw rod (22) is further provided with a driving section (23), the driving section (23) is provided with a plurality of holes, and the holes are annularly and uniformly distributed relative to the axis of the screw rod (22).
8. The appliance of claim 7, wherein the drive section (23) is a middle section of the threaded rod (22) and the two sections of externally threaded sections are located on different sides of the drive section (23).
9. The orthodontic appliance of claim 1, wherein the threads on the two externally threaded sections are fine threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054756.8A CN106580489B (en) | 2017-01-24 | 2017-01-24 | Molar appliance with convenient force application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054756.8A CN106580489B (en) | 2017-01-24 | 2017-01-24 | Molar appliance with convenient force application |
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| CN106580489A CN106580489A (en) | 2017-04-26 |
| CN106580489B true CN106580489B (en) | 2023-02-28 |
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| CN201710054756.8A Active CN106580489B (en) | 2017-01-24 | 2017-01-24 | Molar appliance with convenient force application |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108542519B (en) * | 2018-05-07 | 2023-08-18 | 四川大学 | Device based on micro-implant anchorage moves molar to far and middle |
| CN108836524A (en) * | 2018-07-20 | 2018-11-20 | 吴飞 | A kind of orthodontic devices |
| CN110169833B (en) * | 2019-05-29 | 2021-03-23 | 四川大学 | Orthodontic device convenient to adjust |
| CN112043426B (en) * | 2020-09-21 | 2021-04-30 | 四川大学 | Periodontal ligament stretching osteogenesis mesial moving molar device and correction method |
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| CN206867290U (en) * | 2017-01-24 | 2018-01-12 | 四川大学 | One kind is ground one's teeth in sleep appliance |
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2017
- 2017-01-24 CN CN201710054756.8A patent/CN106580489B/en active Active
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| FR2780632A1 (en) * | 1996-07-27 | 2000-01-07 | Michael O Williams | ORTHODONTIC APPARATUS FOR MAXIMUM ARC EXPANSION |
| CN2838560Y (en) * | 2005-10-26 | 2006-11-22 | 武汉市第八医院 | Push away labial teeth mobile appliance near |
| CN202113175U (en) * | 2011-06-02 | 2012-01-18 | 杨勇 | Device for distal movement of maxillary molars |
| CN204207866U (en) * | 2014-11-10 | 2015-03-18 | 梅志强 | A kind of multi-functional appliance of grinding one's teeth in sleep |
| CN204814232U (en) * | 2014-12-18 | 2015-12-02 | 丁海正 | It pushes to jaw level of grinding one's teeth in sleep and rescues ware to removing in far away jointly to plant anchorage nail a little |
| CN206867290U (en) * | 2017-01-24 | 2018-01-12 | 四川大学 | One kind is ground one's teeth in sleep appliance |
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| CN106580489A (en) | 2017-04-26 |
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