CN113476158B - Orthodontic device for molar teeth - Google Patents
Orthodontic device for molar teeth Download PDFInfo
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- CN113476158B CN113476158B CN202110869604.XA CN202110869604A CN113476158B CN 113476158 B CN113476158 B CN 113476158B CN 202110869604 A CN202110869604 A CN 202110869604A CN 113476158 B CN113476158 B CN 113476158B
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- buccal
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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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- 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
- A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
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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
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/28—Securing arch wire to bracket
- A61C7/282—Buccal tubes
Abstract
The invention provides a molar orthodontic device, which comprises a vertical hook and a band ring, wherein the vertical hook is used for being bonded on a first tooth, the band ring comprises a ring body and a spring part arranged on the ring body, the ring body is used for being arranged on a second tooth adjacent to the first tooth, and the spring part is used for contacting the vertical hook to drive the band ring to be far away from the vertical hook. Through set up the belt ring on the second tooth to the second tooth is as anchorage, can avoid setting up anchorage nail in the mouth, and the just abnormal device of molar can reduce the intraoral foreign body sensation of patient, and the position of vertical hook can be adjusted according to the emergence situation of first tooth, and just abnormal device of molar both had been applicable to and corrected the first tooth that high position hinders living, also was applicable to and corrects the first tooth that low position hinders living.
Description
Technical Field
The invention relates to the field of orthodontic research of molar teeth, in particular to an orthodontic device of molar teeth.
Background
Clinically, the first molar or the second molar cannot be retained due to caries, fracture and other factors, while the adjacent third molar is usually normal in tooth crown size and good in tooth root development, but with the refinement of human food, the tooth degeneration is delayed from the jaw degeneration, and various types of third molar are commonly stopped in clinic. Research shows that the vertical occlusion rate of the third molar is 38%, the near-middle occlusion rate is 43%, the horizontal occlusion rate is 3% and the far-middle occlusion rate is 6%.
At present, scholars at home and abroad agree that it is feasible to replace the first or second molar with the sequential advancement of the healthy second molar and the third molar. Through this mode can establish complete healthy dentition again, the intraoral foreign matter that does not have after the treatment, the tooth tissue is not damaged, resumes the point nest interlock relation in grinding the tooth district simultaneously, and the patient can carry out normal chewing function.
For the erupting third molar in the right position, the eruption height is enough, and the third molar can be directly forwards moved to replace the second molar. However, for the impacted third molars, Baik et al found that after the second molars were advanced to provide more room, the third molars did not stand upright naturally, but rather became more medially inclined with a greater probability, and therefore, it was important to change the eruption direction of the impacted third molars as early as possible for the rapid vertical third molars.
Currently, there are many third molars vertically impacted by various orthodontics, such as Magkavali, who comprehensively analyzed different systems for vertically tilting teeth using implanted anchorage pins, including implanting anchorage pins in the distal part of tilted molars, attaching lingual buttons to the tilted molars, pulling the third molars to tilt distally through a rubber chain; implanting an anchorage nail at the mesial alveolar ridge crest of the oblique tooth, and pushing the third molar to tilt towards the distal direction by adhering a vertical curve; or implanting an anchorage nail in the alveolar bone on the medial buccal side of the inclined tooth and placing a push spring to push the third molar to incline towards the far middle.
The above devices have the following disadvantages that firstly, in the process of erecting the third molar, the third molar needs to incline to the far middle first and then move to the near middle, and in the process, the third molar performs reciprocating motion, so that the treatment period is prolonged; second, pushing or pulling the molars to tilt distally tends to cause occlusal high points in the distal portion of the third molars, which interfere with the occlusal movement of the jaw teeth.
In addition, the treatment methods all need to additionally implant an anchorage nail as anchorage, the setting of the anchorage nail belongs to invasive operation, certain damage is caused to a patient, and the anchorage nail can cause foreign body sensation in the mouth of the patient.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a molar orthodontic device which can reduce the foreign body sensation in the mouth of a patient.
The molar orthodontic device comprises a vertical hook and a band ring, wherein the vertical hook is used for being bonded on a first tooth, the band ring comprises a ring body and a spring part arranged on the ring body, the ring body is used for being arranged on a second tooth adjacent to the first tooth, and the spring part is used for contacting the vertical hook to drive the band ring to be far away from the vertical hook.
According to the orthodontic device of the molar tooth provided by the invention, at least the following technical effects are achieved: through set up the belt ring on the second tooth to the second tooth is as anchorage, can avoid setting up anchorage nail in the mouth, and the just abnormal device of molar can reduce the intraoral foreign body sensation of patient, and the position of vertical hook can be adjusted according to the emergence situation of first tooth, and just abnormal device of molar both had been applicable to and corrected the first tooth that high position hinders living, also was applicable to and corrects the first tooth that low position hinders living.
According to some embodiments of the invention, the vertical hook comprises a shank and a base plate, the shank being arranged on the base plate, the base plate being adapted to be glued to the first tooth.
According to some embodiments of the invention, the end of the hook handle away from the bottom plate is formed with a first hook, and the shape of the first hook is matched with that of the spring part.
According to some embodiments of the invention, the spring portion comprises a first torsion arm and a second torsion arm connected to each other, the first torsion arm connecting the loop body, the second torsion arm for contacting the vertical hook.
According to some embodiments of the invention, a second hook is formed at an end of the second torsion arm away from the first torsion arm, and the shape of the second hook is matched with that of the vertical hook.
According to some embodiments of the invention, the molar orthodontic device further comprises a first buccal tube disposed on the ring body and a second buccal tube for disposition on the first tooth.
According to some embodiments of the invention, the spring portion is disposed on a lingual side of the ring body and the first buccal tube is disposed on a buccal side of the ring body.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a vertical hook provided by the present invention;
FIG. 2 is a schematic view of a belt loop provided by the present invention;
FIG. 3 is a schematic view of a molar orthodontic device provided by the present invention installed on a tooth;
fig. 4 is a schematic view illustrating the force application of the orthodontic device of the present invention.
Reference numerals:
a vertical hook 1, a hook handle 11, a first hook 111, a bottom plate 12,
The ring 2, the ring body 21, the spring part 22, the second hook 221, the first buccal tube 23,
A second buccal tube 3, an arch wire 4,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
According to the molar orthodontic device provided by the invention, the molar orthodontic device comprises a vertical hook 1 and a band ring 2, wherein the vertical hook 1 is used for being bonded on a first tooth, the band ring 2 comprises a ring body 21 and a spring part 22 arranged on the ring body 21, the ring body 21 is used for being arranged on a second tooth adjacent to the first tooth, and the spring part 22 is used for contacting the vertical hook 1 to drive the band ring 2 to be far away from the vertical hook 1.
The traditional process of establishing healthy dentition is generally carried out according to the order with the antedisplacement of second tooth, just abnormal to first tooth, with the antedisplacement of first tooth, just abnormal to first tooth, sets up the anchorage nail in the mouth earlier, uses the anchorage nail to become normal upright state by the inclined state for the anchorage again, sets up the anchorage nail and belongs to invasive operation, has certain damage to the patient, and the anchorage nail still can make the intraoral foreign body sensation that produces of patient.
According to the molar orthodontic device provided by the present invention, the band ring 2 is provided on the second tooth, and the second tooth is used as an anchorage of the spring portion 22, so that it is possible to avoid the installation of an anchorage pin in the mouth, and the molar orthodontic device can reduce the foreign body sensation in the mouth of a patient, and the position of the vertical hook 1 can be adjusted according to the exposure state of the first tooth, and the molar orthodontic device is suitable for correcting both the first tooth with high position arrhythmic and the first tooth with low position arrhythmic. When the first tooth is used for orthodontics, the second tooth does not need to be advanced too much, and the ring body 21 can be sleeved on the advancing space. The molar orthodontic device can promote the forward movement of the second tooth while orthodontic the first tooth, thereby accelerating the speed of establishing healthy dentition.
It is understood that the molar orthodontic device may be used for orthodontics of the third molar 9, in which case the first tooth is the third molar 9 and the second tooth is the second molar 8, and the molar orthodontic device may also be used for orthodontics of the first molar or the second molar 8. The second tooth refers to the mesial one of the teeth adjacent to the first tooth.
According to some embodiments of the invention, the vertical hook 1 comprises a shank 11 and a base 12, the shank 11 being arranged on the base 12, the base 12 being intended to be glued to the first tooth. The contact area of bottom plate 12 can increase and first tooth improves the firmness of bonding, and bottom plate 12 can also set up coarse face of bonding to further improve the firmness of bonding. The shank 11 may facilitate the contact of the vertical hook 1 with the spring portion 22.
In some embodiments, the end of the handle 11 away from the bottom plate 12 is formed with a first hook 111, and the shape of the first hook 111 is adapted to the spring portion 22. The first hook 111 can hook the spring part 22, so that the spring part 22 is prevented from being separated from the vertical hook 1 in use, and the use stability of the molar orthodontic device is improved. In addition, the first hook 111 formed by bending can prevent the tip of the hook handle 11 from scratching the mucous membrane of the buccal side of the patient, and the safety of the molar orthodontic device is improved.
In some embodiments, the angle between the shank 11 and the base plate 12 is adjustable. For example, the hook handle 11 can be connected with the bottom plate 12 by welding, the angle between the hook handle 11 and the bottom plate 12 can be adjusted according to specific requirements during welding, and the hook handle 11 can be deformed appropriately. Therefore, the hook shank 11 can be smoothly brought into contact with the spring portion 22 by adjusting the angle regardless of where the base plate 12 is adhered to the first tooth.
According to some embodiments of the invention, the spring portion 22 comprises a first torsion arm and a second torsion arm connected to each other, the first torsion arm connecting the ring body 21, the second torsion arm being intended to contact the vertical hook 1. At this moment, the spring part 22 adopts a torsion spring structure, the torsion spring structure is convenient to bend, and the magnitude of the torsion force can be conveniently adjusted, so that the proper correction force is obtained, the operation time beside the chair can be reduced, and the experience feeling of a patient is improved. The spring portion 22 may be coupled to the ring body 21 by welding, integral molding, or the like.
In some embodiments, the end of the second torsion arm away from the first torsion arm is formed with a second hook 221, and the shape of the second hook 221 is matched with the vertical hook 1. The second hook 221 can hook the vertical hook 1, and the second hook 221 bends back, so that the tip of the second hook 221 can be prevented from stabbing oral mucosa, and the use stability and safety of the orthodontic device can be improved.
According to some embodiments of the invention, the molar orthodontic device further comprises a first buccal tube 23 and a second buccal tube 3, the first buccal tube 23 being disposed on the ring body 21, the second buccal tube 3 being for being disposed on the first tooth. The first buccal tube 23 is used to place the archwire 4 and the second buccal tube 3 in a first tooth, and the archwire 4 connects the first buccal tube 23 with the band 2 and the second buccal tube 3 in the first tooth to apply a vertical force to the first tooth. The arch wire 4 can avoid the first tooth to be raised and produce the interlock high point through the first buccal tube 23 on the second tooth and the thrust combined action of the thrust of the spring portion 22 of the just abnormal power of second buccal tube 3 production on the first tooth, when vertical to first tooth, improves the experience of the orthodontic device of grinding one's teeth. In some embodiments, the spring portion 22 is disposed on the lingual side of the ring body 21 and the first buccal tube 23 is disposed on the buccal side of the ring body 21.
According to the molar uprighting method provided by the present invention, the molar uprighting method uses a molar orthodontic device including:
the tooth ring comprises a vertical hook 1 and a ring 2, wherein the vertical hook 1 is used for being adhered to a first tooth, the ring 2 comprises a ring body 21 and a spring part 22 arranged on the ring body 21, the ring body 21 is used for being arranged on a second tooth adjacent to the first tooth, and the spring part 22 is used for contacting the vertical hook 1 to drive the ring 2 to be far away from the vertical hook 1;
the vertical method for grinding teeth comprises the following steps:
a vertical hook 1 is bonded on a first tooth, and a belt ring 2 is bonded on a second tooth adjacent to the first tooth;
the spring portion 22 is brought into contact with the vertical hook 1 and the molar orthodontic device erects the first tooth.
According to the vertical method of the molar provided by the invention, by using the molar orthodontic device, the band ring 2 is arranged on the second tooth, the second tooth is used as an anchorage tooth, the anchorage nail can be prevented from being arranged in the mouth, the foreign body sensation in the mouth of a patient during orthodontic treatment is reduced, the second tooth is used as the anchorage, the reaction force of the spring part 22 enables the second tooth to move towards the middle while the first tooth is pushed towards the middle, and the speed of establishing healthy dentition is improved.
According to some embodiments of the invention, the vertical method of molar further comprises: setting a rechecking interval, and adjusting the molar orthodontic device once after each rechecking interval. It can be understood that, as the orthodontic process of the first tooth advances, the acting force of the spring portion 22 on the first tooth changes, and by adjusting the acting force, the molar orthodontic device can be adjusted timely, and smooth orthodontic performance can be ensured. The adjustment may include adjusting the bonding position of the vertical hook 1, adjusting the magnitude of the urging force of the spring portion 22, adjusting the urging position of the spring portion 22, and the like.
In some embodiments, the molar orthodontic device includes a first buccal tube 23 and a second buccal tube 3, the first buccal tube 23 disposed on the ring body 21, the second buccal tube 3 for disposition on a first tooth, the molar vertical method further comprising: the second buccal tube 3 is bonded to a buccal side of the first tooth, and the first buccal tube 23 of the band 2 and the second buccal tube 3 of the first buccal side are connected using the archwire 4 to apply a vertical force to the first tooth. Vertical force generated by the buccal arch wire 4 and thrust of the spring part 22 jointly form combined force, so that the first tooth can be prevented from being lifted to generate an occlusion high point while the first tooth is orthodontic, and the experience of the molar orthodontic device is improved. Specifically, if the buccal side surface of the first tooth has been exposed at the beginning, the second buccal tube 3 may be provided directly on the first tooth, otherwise, after the buccal side surface of the first tooth has been exposed, the second buccal tube 3 may be provided on the first tooth again. And the position of the buccal tube 3 of the first tooth is timely adjusted according to the emergence condition of the buccal side of the first tooth, so that inflammation or erosion of the first periodontal gingiva or mucous membrane caused by windowing the buccal side of the first tooth and bonding the second buccal tube 3 when the buccal side of the first tooth is not exposed can be avoided.
A molar orthodontic device and a molar erecting method provided according to the present invention will be described in detail with reference to fig. 1, 2, 3, and 4 in a specific embodiment. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting.
The molar orthodontic device comprises a vertical hook 1, a band ring 2 and a second buccal tube 3.
The vertical hook 1 comprises a hook handle 11 and a bottom plate 12, the hook handle 11 is welded on the bottom plate 12, a first clamping hook 111 is formed at one end, away from the bottom plate 12, of the hook handle 11, the shape of the first clamping hook 111 is matched with that of the spring portion 22, the bottom plate 12 is provided with a rough bonding surface, and the bottom plate 12 is used for being bonded on a first tooth.
The ring body 2 includes ring body 21, spring portion 22 and first buccal tube 23, spring portion 22 welds the lingual side at ring body 21, first buccal tube 23 welds the buccal side at ring body 21, ring body 21 is used for bonding on the second tooth adjacent with first tooth, spring portion 22 is used for contacting vertical hook 1 and keeps away from vertical hook 1 with drive ring body 2, spring portion 22 includes interconnect's first torque arm and second torque arm, ring body 21 is connected to first torque arm, the second torque arm is used for contacting vertical hook 1, the one end shaping that first torque arm was kept away from to the second torque arm has second pothook 221, the shape and the vertical hook 1 looks adaptation of second pothook 221.
The present embodiment erects the third molar 9 using a molar erection method, the first tooth being the third molar 9 and the second tooth being the second molar 8, the molar erection method comprising:
a vertical hook 1 is adhered to the third molar 9, and a belt ring 2 is adhered to the second molar 8;
the second torque arm is compressed to enable the second torque arm to lean against the first clamping hook 111 of the vertical hook 1, the spring part 22 contacts the vertical hook 1, and the molar orthodontic device erects the third molar 9;
setting a rechecking interval, and adjusting the molar orthodontic device once after each rechecking interval;
and (5) removing the orthodontic device to finish the vertical stage of orthodontic treatment.
Wherein, when the vertical hook 1 is adhered, the third molar 9 which can not be seen in the mouth can be opened by a surgical operation, and after the highest point or the most protruded point of the third molar 9 is exposed, the vertical hook 1 is adhered at the position.
Wherein the adjustment includes adjusting the spring portion 22 and adjusting the bonding position of the vertical hook 1 and the position of the second buccal tube 3 on the first buccal side.
The adjustment of the spring portion 22 includes changing the urging force of the spring portion 22, specifically, the contact position between the spring portion 22 and the vertical hook 1 can be changed by adjusting the adhesion position of the vertical hook 1, the magnitude of the torsion force of the spring portion 22 can be changed by adjusting the form of the spring portion 22, and the magnitude of the urging force of the spring portion 22 against the third molar teeth 9 can be changed.
Adjusting the second buccal tube 3 includes placing the second buccal tube 3 on the third molar 9 after waiting for the third molar 9 to expose the buccal side, and using the archwire 4 to connect the first buccal tube 23 on the ring body 21 and the second buccal tube 3 on the third molar to create a vertical force against the third molar. Adjusting the second buccal tube 3 further comprises adjusting the position of the second buccal tube 3 of the third molar 9 in time according to the buccal eruption of the third molar 9.
According to the molar orthodontic device and the molar vertical method provided by the embodiment of the invention, the following advantages are achieved:
firstly, the second molar 8 is taken as an anchorage tooth, the acting force of the spring part 22 can not only vertically stand for the third molar 9, but also push the second molar 8 forwards, thereby accelerating the treatment process;
secondly, the third molar 9 can be erected from the initial correction stage without excessively advancing the second molar 8, and the ring body 21 can be sleeved on the advancing space;
after the crowns of the buccal surfaces of the third and the third molars 9 are exposed, the second buccal tube 3 can be bonded, and the third molars 9 are erected from the buccal side and the lingual side at the same time by utilizing the orthodontic force generated by the arch wire 4 and the pushing force generated by the spring part 22, so that the efficiency is increased;
fourthly, the buccal side of the third molar 9 does not need to be boned and windowed in an early stage, and the second buccal tube 3 is bonded when the third molar is gradually vertical and the buccal side is exposed (the position is not required to be accurate at the beginning, only the second buccal tube 3 needs to be bonded, and the position of the second buccal tube 3 is continuously adjusted in the vertical process), so that the technology is minimally invasive, the stimulation and the damage to the mucosa are greatly reduced, and the comfort of a patient is improved;
fifthly, standardized production of the molar orthodontic device can be realized, orthodontists only need to bond the belt ring 2 and the vertical hook 1 to enable the spring part 22 to contact the vertical hook 1, and then backward and upward thrust can be generated, so that the third molar 9 which is blocked vertically;
sixth, the combined buccal and lingual forces not only provide adequate orthodontic forces, but also avoid occlusal high points formed by distal elevations. In terms of the whole technical difficulty, the operation is simple and convenient, and orthodontists can finish the operation independently, so the method is suitable for popularization;
seventhly, anchorage nails do not need to be implanted, so that the cost of vertical grinding is reduced, and the wound of anchorage nail implantation is avoided;
eighthly, the tongue bow, the anchorage nail and the like are not required to be manufactured to grind teeth vertically, so that foreign body sensation in the mouth is reduced;
ninth, the spring part 22 adopts a torsion spring structure, does not need to bend a torsion arm with a complex shape, reduces the technical requirement, is not easy to break, and can be widely used.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (3)
1. A molar orthodontic device, comprising:
the tooth fixing device comprises a vertical hook (1), wherein the vertical hook (1) is used for being adhered to a first tooth;
the belt ring (2) comprises a ring body (21) and a spring part (22) arranged on the ring body (21), the ring body (21) is used for being arranged on a second tooth adjacent to the first tooth, and the spring part (22) is used for contacting the vertical hook (1) to drive the belt ring (2) to be far away from the vertical hook (1);
the vertical hook (1) comprises a hook handle (11) and a bottom plate (12), the hook handle (11) is arranged on the bottom plate (12), the bottom plate (12) is used for being adhered to a first tooth, a first clamping hook (111) is formed at one end, far away from the bottom plate (12), of the hook handle (11), and the shape of the first clamping hook (111) is matched with that of the spring part (22);
the orthodontic device further comprises a first buccal tube (23) and a second buccal tube (3), the first buccal tube (23) being arranged on the ring body (21), the second buccal tube (3) being intended to be arranged on a first tooth;
the spring portion (22) is arranged on the lingual side of the ring body (21), and the first buccal tube (23) is arranged on the buccal side of the ring body (21);
and bonding a second buccal tube (3) on the buccal side of the first tooth, and connecting the first buccal tube (23) with the ring (2) and the second buccal tube (3) on the first buccal side by using the arch wire (4) so as to apply vertical force to the first tooth, wherein the vertical force generated by the buccal arch wire (4) and the pushing force of the spring part (22) jointly form combined force.
2. The orthodontic appliance of claim 1, wherein: the spring portion (22) comprises a first torsion arm and a second torsion arm connected to each other, the first torsion arm being connected to the ring body (21), the second torsion arm being for contacting the vertical hook (1).
3. The orthodontic appliance of claim 2, wherein: the second torque arm is far away from the one end shaping of first torque arm has second pothook (221), the shape of second pothook (221) with vertical hook (1) looks adaptation.
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| CN202110869604.XA CN113476158B (en) | 2021-07-30 | 2021-07-30 | Orthodontic device for molar teeth |
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| CN202110869604.XA CN113476158B (en) | 2021-07-30 | 2021-07-30 | Orthodontic device for molar teeth |
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| CN102688103A (en) * | 2012-06-13 | 2012-09-26 | 佛山市第一人民医院 | Correction device for anteverted impactedmolar |
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| CN208784950U (en) * | 2017-10-31 | 2019-04-26 | 广州市德伦口腔门诊部有限公司 | A kind of horizontal impaction erect molar device |
| CN111419439A (en) * | 2020-04-21 | 2020-07-17 | 暨南大学 | Correction device and correction method for dragging vertical free end impacted molar |
| CN215458818U (en) * | 2021-06-23 | 2022-01-11 | 浙江大学医学院附属口腔医院 | Impacted tooth corrector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140242536A1 (en) * | 2013-02-26 | 2014-08-28 | T. Richard Ziehmer | Mandibular attachment for correction of malocclusion |
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2021
- 2021-07-30 CN CN202110869604.XA patent/CN113476158B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688103A (en) * | 2012-06-13 | 2012-09-26 | 佛山市第一人民医院 | Correction device for anteverted impactedmolar |
| CN106923917A (en) * | 2017-03-22 | 2017-07-07 | 南京医科大学附属口腔医院 | The upright device of grinding one's teeth in sleep that leans forward of two-way Force system |
| CN208784950U (en) * | 2017-10-31 | 2019-04-26 | 广州市德伦口腔门诊部有限公司 | A kind of horizontal impaction erect molar device |
| CN111419439A (en) * | 2020-04-21 | 2020-07-17 | 暨南大学 | Correction device and correction method for dragging vertical free end impacted molar |
| CN215458818U (en) * | 2021-06-23 | 2022-01-11 | 浙江大学医学院附属口腔医院 | Impacted tooth corrector |
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