CN112043426B - Periodontal ligament stretching osteogenesis mesial moving molar device and correction method - Google Patents
Periodontal ligament stretching osteogenesis mesial moving molar device and correction method Download PDFInfo
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- CN112043426B CN112043426B CN202010998745.7A CN202010998745A CN112043426B CN 112043426 B CN112043426 B CN 112043426B CN 202010998745 A CN202010998745 A CN 202010998745A CN 112043426 B CN112043426 B CN 112043426B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0093—Features of implants not otherwise provided for
- A61C8/0096—Implants for use in orthodontic treatment
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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
- A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders
Abstract
The invention discloses a device for stretching a bone-forming mesial moving molar by a periodontal ligament, which comprises a first band ring arranged on a molar or a premolar in the mesial of an edentulous area and a second band ring arranged on a molar needing mesial moving, wherein the first band ring and the second band ring are connected through a spiral stretching device, the spiral stretching device is arranged on the buccal side of the tooth, and the spiral stretching device comprises a first buccal slide block, a spiral rod, a nut, a second buccal slide block and a buccal slide rod; the first tongue side sliding block and the second tongue side sliding block are arranged on the tooth tongue side; the first tongue side sliding block and the second tongue side sliding block are connected through a tongue side sliding rod and an elastic device. The invention solves the problems of the prior art that the molar deflects and inclines when the molar moves near and in a long distance.
Description
Technical Field
The invention relates to the technical field of oral medical treatment, in particular to a device and a correction method for periodontal ligament stretching osteogenesis mesial moving molar.
Background
Clinically, a patient who usually loses the first or second molar of the lower jaw due to caries and trauma is shown in a schematic view of the missing first or second molar of the lower jaw in fig. 1, and the main solutions at present are implant repair and crown bridge repair. The cost of the planting treatment is high, and unnecessary risks of the planting operation are borne by the patient; crown bridge restorations require that healthy tooth tissue be abraded and that the chewing function be inferior to normal teeth. And most patients have the third molar tooth which is still left, so that the third molar tooth can replace the missing tooth to play a normal chewing function and is more beautiful.
There are four main ways of moving molars at present:
1) arch wire and rubber chain: as shown in fig. 2 and 3, the molar teeth are moved medially along the arch wire by the tensile force of the bucco-lingual rubber chain. The method is suitable for small-distance molar movement, and is easy to cause mesial inclination of molar, and has side effect on premolar.
2) Rubber chain + micro planting nail: as shown in figures 4 and 5, one end of the rubber chain is hung on the micro-implant nail, the other end of the rubber chain is added on the molar needing to move in the near-middle, and the rubber chain applies tension to the molar. This method avoids unnecessary shifting of premolars, but the correction time is long and the mesial shifted molars may exhibit root resorption.
3) Rubber chain + continuous ligation: as shown in fig. 6, a tensile force is applied to the molars by the bucco-lingual rubber chain, and once mesial tilting of the molars occurs, the ligature wire replaces the rubber chain, and the molars are stood upright and then the mesial movement of the molars using the rubber chain is continued. The continuous ligation integrally connects other teeth to provide stronger anchorage. The method has too long correcting time and is easy to absorb the tooth root. Molars are prone to tipping during mesial movement and have side effects on other anchorage teeth.
4) Slide bar + extension spring + planting nail a little: as shown in fig. 7, one end of the buccal tension spring is fixed with the planting nail, the other end of the buccal tension spring is added on the molar needing to move in the near-middle direction, continuous tension is provided, and the slide bar on the lingual side enables the molar to slide along the lingual bar. This method provides strong anchorage, but the molars undergo mesial tilting and mesial rotation during mesial movement of the molars, and the lingual slide bars are easily caught, hindering mesial movement of the molars. Moreover, the scheme has long correcting time and is easy to cause root absorption.
In summary, the current appliances and correction methods have the following main drawbacks:
1. too long correction time is easy to cause tooth root absorption;
2. most of the mesial moving molar teeth are inclined moving, so that mesial inclination and mesial rotation of a crown are easy to occur, force is not conductive along the long axis of a tooth body, and periodontal health is not facilitated;
3. difficulty in moving molars over long distances;
4. in part of methods, other anchorage teeth are used as anchorage, and unnecessary tooth movement and inclination can occur;
5. the molar alveolar bone moving medially is not high enough to be good for periodontal health.
Disclosure of Invention
The invention aims to provide a device for stretching a periodontal ligament to form a bone mesial moving molar and a correction method thereof, and aims to solve the problems of molar deflection and inclination caused by long-distance mesial moving molar in the prior art.
The technical scheme adopted by the invention is as follows: a periodontal ligament stretch osteogenesis mesial moving molar device comprises a first band ring and a second band ring, wherein the first band ring is used for being sleeved on a molar or an premolar on the mesial side of an edentulous area, the second band ring is used for being sleeved on a molar needing mesial moving, the first band ring and the second band ring are connected through a spiral stretch piece, the spiral stretch piece is fixedly arranged on the buccal side of the first band ring and the buccal side of the second band ring, the spiral stretch piece comprises a first buccal side sliding block and a second buccal side sliding block, the first buccal side sliding block and the second buccal side sliding block are connected through a spiral rod and a buccal side sliding rod, and a nut is arranged on the spiral rod; the first tongue side sliding block and the second tongue side sliding block are arranged on the tongue side of the tooth; the first tongue side sliding block and the second tongue side sliding block are connected through a tongue side sliding rod and an elastic device.
Further, the first buccal slider and the first lingual slider are fixedly connected to both sides of the first band ring, and the second buccal slider and the second lingual slider are fixedly connected to both sides of the second band ring.
Furthermore, a first draw hook is arranged on the first tongue side sliding block, a second draw hook is arranged on the second tongue side sliding block, and two ends of the elastic device are hung on the first draw hook and the second draw hook.
Furthermore, the elastic device is a tension spring or a chain-shaped rubber ring.
Furthermore, the nut is provided with a screw hole for adjusting the nut, and two sides of the nut are respectively provided with screw rods with opposite screwing directions.
Furthermore, only one end of the buccal slide bar is fixedly connected with the first buccal slide block or the second buccal slide block, and only one end of the lingual slide bar is fixedly connected with the second lingual slide block or the first lingual slide block.
Further, in the mesial of the molars requiring mesial movement, first abutment means are further provided between the premolars for providing abutment force to the screw distractor, said first buccal slider being rigidly connected to said first abutment means by a traction member.
Further, the traction piece is a stainless steel wire or a ligature wire.
Further, a second anchorage device is provided, one end of the second anchorage device is fixedly connected with the first belt ring, and the second anchorage device and the first anti-rotation platform pipe cooperate to further limit the molar from inclining and deflecting in the movement process.
Further, the second anchorage device comprises a third belt ring, a tongue bow and a fourth belt ring, the third belt ring is sleeved on the anterior molar on the distraction side, the fourth belt ring is sleeved on the anterior molar on the opposite side, the third belt ring and the fourth belt ring are connected through the tongue bow, and the tongue bow is positioned on the tongue protuberance of the lower anterior tooth.
Further, the third belt ring is wound on at least one premolar on the stretch side, the fourth belt ring is wound on at least one premolar on the opposite side, and the third belt ring is fixedly connected with the first belt ring.
Also provides a correction method for molar mesial movement, which comprises the following steps:
a. acquiring three-dimensional data of an oral dentition model;
b. making the device for grinding teeth to move in the near-middle direction;
c. performing alveolar cancellous bone resection on the middle proximal alveolar bone of the molar;
d. wearing and fixing the device for grinding teeth to move in the mesial direction;
e. adjusting the rate of periodontal ligament stretching and bone formation, performing periodontal ligament stretching and bone formation, and moving molar in the mesial direction.
Further, in the step b, a device for grinding the mesial movement of the teeth is manufactured according to the obtained alveolar bone and tooth root data and a model obtained by intraoral scanning or alginate impression taking;
in the step c, planting a first anchorage device and/or a second anchorage device as required;
and determining the bone distraction rate according to the number of molar roots required to move medially in the step e.
Compared with the prior art, the invention at least has the following technical effects:
(1) compared with implant restoration and crown bridge restoration, the method replaces the second molar with the autologous natural teeth of the patient, recovers the function of the missing teeth by utilizing the natural teeth to the maximum extent, and avoids the treatment risk of implant surgery/the removal of healthy tooth tissues;
(2) the method provides strong anchorage through the micro-implant nail, provides strong anchorage through the third ring, the fourth ring and the tongue arch, and has no side effect on adjacent teeth;
(3) the bone resistance is reduced by matching with cancellous bone resection, the correction time is greatly shortened, the tooth root absorption is not easy to occur, and the dental pulp is not damaged;
(4) by utilizing the periodontal ligament distraction osteogenesis principle, the molar is integrally moved for a long distance, so that the difficulty of proximal movement of the molar is greatly reduced;
(5) bone formation is continuously generated in the process of distraction osteogenesis, alveolar bone is well recovered, and periodontal health is facilitated;
(6) the partial correction can be carried out, only the edentulous side molar or the second premolar is involved, a full-mouth arch wire is not needed, the treatment time can be shortened, and the treatment cost is saved;
(7) the device is formed by processing and casting, the repeated diagnosis operation is less, the time is short, and the comfort level is high;
(8) the device is applied by the patient independently, the participation degree of the patient is high, and the compliance is good;
drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a missing mandibular second molar;
figure 2 is a schematic representation of the manner in which an archwire is drawn in accordance with the prior art;
figure 3 is a schematic representation of the manner in which an archwire is drawn in accordance with the prior art;
FIG. 4 is a schematic diagram of a rubber chain + micro-implant nail manner in the prior art;
FIG. 5 is a schematic illustration of a prior art approach of a screw implantation + spring ejection in the premolar region;
FIG. 6 is a schematic illustration of a prior art rubber chain + continuous ligation mode;
FIG. 7 is a schematic view of a prior art slide bar + tension spring + micro-implant nail approach;
FIG. 8 is a schematic view of the buccal side mounting of the device for moving molars of the present invention;
FIG. 9 is a schematic view of the lingual side of the device for mobile molars of the present invention;
FIG. 10 is a schematic view of the device for moving molars of the present invention along the axis of the screw;
FIG. 11 is a buccal side view of a second anchorage device of the device for moving molars according to the invention;
FIG. 12 is a lingual side view of a second anchorage device of the device for moving molars of the present invention;
FIG. 13 is a schematic representation of the occlusal side of a second anchorage device of the device for moving molars of the present invention;
fig. 14 is a flow chart of a mobile molar method of the present invention.
Description of reference numerals:
| 1 | fixing |
2 | First buccal slider | 3 | Screw rod |
| 4 | |
5 | Second |
6 | |
| 7 | |
8 | |
9 | |
| 10 | |
11 | |
12 | Second tongue |
| 13 | First tongue |
14 | Tongue |
15 | |
| 16 | |
17 | |
18 | |
| 19 | |
20 | Fourth strap ring |
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 drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
The invention discloses a periodontal ligament stretching and osteogenesis mobile mesial molar device which is a device for replacing missing molar by utilizing the periodontal ligament stretching and osteogenesis principle, matching with cancellous bone resection, and integrally moving mesial molar in a long distance by virtue of a micro implant nail between anterior molar teeth and a contralateral anchorage.
Specifically, as shown in fig. 8-10, a device for mesial movement of molar comprises a first band ring 6 and a second band ring 8, wherein the first band ring 6 is used for being sleeved on the molar or premolar on the mesial side of an edentulous area, the second band ring 8 is used for being sleeved on the molar needing mesial movement and is fixed by an adhesive in an auxiliary manner, preferably, the first band ring 6 is arranged on the molar or premolar on the mesial side of the edentulous area, and the second band ring 8 is arranged on the molar; the spiral distractor is fixedly arranged on the buccal side of the first belt ring 6 and the second belt ring 8, so that the spiral distractor is preferentially arranged on the buccal side of the tooth for providing traction force for stretching and forming bone in order to adjust the spiral distractor and enable the spiral distractor to have a larger adjusting range; the spiral distractor comprises a first buccal side slide block 2 and a second buccal side slide block 5, wherein the first buccal side slide block 2 is fixedly connected with a first belt ring 6, the second buccal side slide block 5 is fixedly connected with a second belt ring 8, the first buccal side slide block 2 and the second buccal side slide block 5 are connected through a spiral rod 3 and a buccal side slide rod 7, and a nut 4 for adjusting the spiral rod 3 is arranged on the spiral rod 3; threaded holes and unthreaded holes are respectively formed in the first buccal sliding block 2 and the second buccal sliding block 5, the threaded holes are used for connecting the screw rods 3, and the unthreaded holes are used for connecting the buccal sliding rods 7; the tooth-brushing device also comprises a second tongue-side slide block 12 and a first tongue-side slide block 13 which are arranged on the tongue side of the tooth; the second tongue side sliding block 12 is connected with the first tongue side sliding block 13 through a tongue side sliding rod 14, smooth holes for connecting the tongue side sliding rod 14 are formed in the second tongue side sliding block 12 and the first tongue side sliding block 13, an elastic device 10 is further connected between the second tongue side sliding block 12 and the first tongue side sliding block 1, and hooks for connecting the elastic device 10 are further arranged on the lower portions of the second tongue side sliding block 12 and the first tongue side sliding block 1.
The first buccal slider 2 and the first lingual slider 13 are fixedly coupled to both sides of the first band 6, and the second buccal slider 5 and the second lingual slider 12 are fixedly coupled to both sides of the second band 8. The first buccal sliding block 2, the first lingual sliding block 13, the second buccal sliding block 5, the second lingual sliding block 12, the first strap ring 6, the second strap ring 8, the screw rod 3 and the nut 4 are made of one or more of stainless steel, cobalt-chromium alloy or nickel-titanium alloy.
And a second draw hook 9 is arranged on the second tongue side slide block 12, a first draw hook 11 is arranged on the first tongue side slide block 13, two ends of the elastic device 10 are hung on the second draw hook 9 and the first draw hook 11, and the molar draw hook is a right-angle draw hook or an arc draw hook. The elastic device 10 is preferably a tension spring, and can assist in applying tension, so that the tension on the buccal side and the lingual side is basically equal, and the molar is prevented from rotating in the mesial direction and being clamped by a slide bar on the lingual side in the process of proximal movement.
As shown in fig. 8, a spiral hole 15 is formed in the nut 4, the spiral rods 3 with opposite rotation directions are respectively arranged on two sides of the nut 4, the threads of the spiral rods 3 are fine self-locking threads, so that the spiral rods 3 or the nut 4 are prevented from non-adjusting movement, the adjusting rod is inserted into the spiral hole 15, the nut 4 is rotated at a certain speed, and the spiral rods 3 drive the first buccal side sliding block 2 and the second buccal side sliding block 5 to move, so that the traction force of the spiral distractor is accurately adjusted. When the first buccal slide block 2 is rigidly connected with the implant nail, only the second buccal slide block 5 moves towards the edentulous side.
As shown in fig. 10, only one end of the buccal sliding rod 7 is fixedly connected to the first buccal sliding block 2 or the second buccal sliding block 5, and only one end of the lingual sliding rod 14 is fixedly connected to the second lingual sliding block 12 or the first lingual sliding block 13, which may be an interference connection. During the process of applying tension by the spiral distractor, the tongue side slide bar 14 enables the molars to move forwards along the set direction, so that the tilting and the mesial rotation of the molars can be avoided.
In order to reduce the weight of the device, the buccal slide bar 7 and the lingual slide bar 14 may be made of a non-metallic material and may serve as a guide. In order to further ensure that the direction of movement of the device does not tilt or deflect, the sectional shapes of the buccal slide 7 and the lingual slide 14 are circular.
As shown in fig. 8, a first anchorage device 16 is further disposed in the root area on the side away from the molar and premolar for providing an anchorage force for the spiral distractor, the first anchorage device 16 is disposed to ensure that the molar moves towards the direction of the first anchorage device 16, the first buccal slider 2 is rigidly connected to the first anchorage device 16 through the fixture 1, the first buccal slider 2 is provided with a traction hook for connecting the fixture 1, and the first anchorage device 16 may be an orthodontic first anchorage device such as a micro-implant nail, a titanium plate, etc.
The fixing part 1 is a fixed stainless steel wire or a fixed ligature wire, and the fixing part 1 is sleeved or hooked on the first anchorage device 16, so that strong anchorage can be provided, and anchorage teeth are prevented from moving to the edentulous side.
As shown in fig. 11-13, a second anchorage device 17 is further provided, and one end of the second anchorage device 17 is fixedly connected with the first belt loop 6. The second anchorage device 17 is a reinforcing anchorage device which cooperates with the first anchorage device 16 to further limit the movement of the anchorage tooth towards the edentulous area.
Further, the second anchorage device 17 comprises a third belt ring 18, a tongue arch 19 and a fourth belt ring 20, the third belt ring 18 is sleeved on the anterior molar on the distraction side, the fourth belt ring 20 is sleeved on the anterior molar on the opposite side, the third belt ring 18 and the fourth belt ring 20 are connected through the tongue arch 19, and the tongue arch 19 is located on the lingual protuberance of the lower anterior teeth. The third band 18, the tongue arch 19 and the fourth band 20 are made of one or more of stainless steel, cobalt-chromium alloy or nickel-titanium alloy.
Further, the third belt ring 18 is wound on at least one premolar on the stretch side, the fourth belt ring 20 is wound on at least one premolar on the opposite side, and the third belt ring 18 is fixedly connected with the first belt ring 6.
In use, the first strap ring 6, the second strap ring 8, the third strap ring 18 and the fourth strap ring 20 are put into the corresponding tooth site and are cemented with an adhesive. The first buccal side sliding block 2 of the premolar is fixedly connected with a first anchorage device 16 through a stainless steel wire or a ligature wire, and is fixedly connected with a second anchorage device 17 through a third belt ring 18, an adjusting key is inserted into a spiral hole 15 of a buccal side spiral distractor and is screwed at a certain speed, the length of a spiral rod 3 is shortened, pulling force can be applied to the corresponding molar, the sliding rod can slide along the buccal side sliding rod 7 and the lingual side sliding rod 14 on the buccal tongue side, and the tension spring on the tongue side can assist in applying force.
Fig. 14 also provides a method for correcting the molar movement by using the molar mesial movement device, which comprises the following steps:
a. acquiring three-dimensional data of an oral dentition model;
b. making the molar mesial movement device, specifically making the molar mesial movement device according to the obtained alveolar bone and root data and a model obtained by intraoral scanning or alginate impression taking;
c. performing alveolar cancellous bone resection on the proximal middle alveolar bone of the molar, and implanting a first anchorage device and/or a second anchorage device according to requirements;
d. wearing and fixing the device for grinding teeth to move in the mesial direction;
e. regulating the stretching and bone formation rate of the periodontal ligament, performing the stretching and bone formation of the periodontal ligament, and moving the molar in the mesial direction.
In order to determine whether the patient is suitable for the molar movement method, the molar missing state of the patient needs to be acquired before treatment, and whether the patient meets the indication of the treatment is judged, for example, the first molar or the second molar is missing, the root length of the third molar is normal, and the root bifurcation is small, the molar movement method can be used for correcting;
specifically, the method comprises the following steps:
in the step a, a model is obtained by scanning the inside of the mouth of a patient, and a panoramic picture and an oral CBCT are shot;
in the step b, the manufactured device for moving the molar needs to be worn in the mouth of the patient in a trial mode, good positioning is guaranteed, force is applied smoothly, and the device needs to be manufactured again if the size is not matched, the adjustment is not smooth and the like exist;
in step c, the range and the depth of the buccal and lingual sides of the alveolar cancellous bone resection are designed according to the inspection result of the CBCT, alveolar bone cancellous bone resection is performed on the mesial alveolar bone of the molar needing to move mesially, bone plates on the buccal side and the lingual and palatal side are reserved, suturing is performed, and planting nails are implanted into corresponding parts according to requirements. This step may be omitted if it is determined that implantation of the first impedance device 16 is not required; the bone resistance can be reduced by matching with cancellous bone resection, the whole tooth grinding in a near middle can be realized in a long distance, the tooth moving speed can be accelerated, the correction time is greatly shortened, and tooth root absorption is not easy to occur.
Meanwhile, the first anchorage device 16, the second anchorage device 17 and the implantation part are selected according to needs, specifically, the first anchorage device 16 and the second anchorage device 17 can be adopted simultaneously, or only one of the anchorage modes is adopted, the first anchorage device 16 provides strong anchorage, and the second anchorage device 17 is used as further reinforced anchorage and has no side effect on adjacent teeth. If it is determined that implantation of an anchorage device is not required, this step may be omitted.
In the step d, after the surgical wound of the patient is healed after one week, the periodontal ligament distraction osteogenesis device is worn in the mouth of the patient and is bonded by orthodontic adhesive, and a tension spring is added on the tongue side according to the requirement; the orthodontic adhesive is glass ion adhesive or blue glue adhesive;
in step e, the periodontal ligament stretch rate is determined according to the number of molar roots which the patient needs to move medially, and the device for moving the molars is adjusted according to the stretch rate. The device can be adjusted by the patient's self-imposed force, and patient's participation degree is high, and the compliance is good. Bone formation is continuously generated in the process of distraction osteogenesis, alveolar bone is well recovered, and periodontal health is facilitated.
Compared with implant restoration and crown bridge restoration, the tooth moving method of the invention replaces the missing molar with the autologous natural tooth of the patient, recovers the function of the missing tooth to the maximum extent and avoids the risk of implant surgery treatment/healthy tooth tissue removal; the method provides strong anchorage through the micro-implant nail, provides strong anchorage through the third ring, the fourth ring and the tongue arch, and has no side effect on adjacent teeth; the bone resistance is reduced by matching with cancellous bone resection, the correction time is greatly shortened, the tooth root absorption is not easy to occur, and the dental pulp is not damaged; by utilizing the periodontal ligament distraction osteogenesis principle, the molar is integrally moved for a long distance, so that the difficulty of proximal movement of the molar is greatly reduced; bone formation is continuously generated in the process of distraction osteogenesis, alveolar bone is well recovered, and periodontal health is facilitated; can locally correct, only relates to the tooth positions at two sides of the edentulous area, does not need a full-mouth arch wire, can shorten the treatment time and saves the treatment cost. The device is formed by processing and casting, the repeated diagnosis operation is less, the time is short, and the comfort level is high; the device is applied by the patient independently, and the patient participation degree is high, and the compliance is good.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A device for periodontal ligament distraction osteogenesis mesial moving molar, comprising a first band (6) and a second band (8), wherein the first band (6) is used for sleeving on a molar or an premolar on the mesial side of an edentulous area, the second band (8) is used for sleeving on a molar needing mesial moving, the first band (6) and the second band (8) are connected through a spiral distractor, characterized in that the spiral distractor is fixedly arranged on the buccal side of the first band (6) and the second band (8), the spiral distractor comprises a first buccal slider (2) and a second buccal slider (5), the first buccal slider (2) and the second buccal slider (5) are connected through a spiral rod (3) and a buccal slider (7), and a nut (4) is arranged on the spiral rod (3); the tongue-shaped belt is characterized by further comprising a first tongue-shaped side sliding block (13) arranged on the tongue surface side of the first belt ring (6), and a second tongue-shaped side sliding block (12) arranged on the tongue surface side of the second belt ring (8); the second tongue side sliding block (12) is connected with the first tongue side sliding block (13) through a tongue side sliding rod (14) and an elastic device (10);
the first buccal slide block (2) and the first lingual slide block (13) are fixedly connected to two sides of the first belt ring (6), and the second buccal slide block (5) and the second lingual slide block (12) are fixedly connected to two sides of the second belt ring (8);
the belt buckle is also provided with a second anchorage device (17), and one end of the second anchorage device (17) is fixedly connected with the first belt ring (6);
the second anchorage device (17) comprises a third belt ring (18), a tongue arch (19) and a fourth belt ring (20), the third belt ring (18) is sleeved on the front molar of the tension side, the fourth belt ring (20) is sleeved on the front molar of the opposite side, the third belt ring (18) is connected with the fourth belt ring (20) through the tongue arch (19), and the tongue arch (19) is positioned on the tongue protuberance of the lower front tooth.
2. The device for periodontal ligament distraction osteogenesis mesial mobile molar according to claim 1, wherein the first lingual slider (13) is provided with a first draw hook (11), the second lingual slider (12) is provided with a second draw hook (9), and two ends of the elastic device (10) are hung on the first draw hook (11) and the second draw hook (9).
3. Device for periodontal ligament distraction osteogenesis mesial mobile molar according to claim 2, characterized in that said elastic means (10) are tension springs or catenarian rubber bands.
4. Device for periodontal ligament distraction osteogenesis mesial mobile molars according to any of claims 1 to 3, wherein said nut (4) is provided with a screw hole (15) for adjusting the nut, and said nut (4) is provided with screw rods (3) with opposite directions of rotation on both sides.
5. The device for periodontal ligament distraction osteogenesis mesial mobile molar according to claim 2, wherein only one end of the buccal slide bar (7) is fixedly connected to the first buccal slider (2) or the second buccal slider (5), and only one end of the lingual slide bar (14) is fixedly connected to the second lingual slider (12) or the first lingual slider (13).
6. Device for periodontal ligament distraction osteogenesis mesial mobile molar according to claim 1, characterized in that it is further provided with a first anchorage means (16) providing an anchorage force to the helical distractor, said first buccal slider (2) being rigidly connected to said first anchorage means (16) by means of a fixture (1).
7. The device for periodontal ligament distraction osteogenesis mesial mobile molars according to claim 6, wherein said fixture (1) is a stainless steel wire or a ligature wire.
8. The device for periodontal ligament distraction osteogenesis mesial mobile molars according to claim 1, wherein said third band (18) is wrapped around at least one premolar on the distraction side, said fourth band (20) is wrapped around at least one opposite premolar, said third band (18) being fixedly connected to the first band (6).
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| CN202010998745.7A CN112043426B (en) | 2020-09-21 | 2020-09-21 | Periodontal ligament stretching osteogenesis mesial moving molar device and correction method |
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| CN202010998745.7A CN112043426B (en) | 2020-09-21 | 2020-09-21 | Periodontal ligament stretching osteogenesis mesial moving molar device and correction method |
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|---|---|---|---|---|
| CN106580489A (en) * | 2017-01-24 | 2017-04-26 | 四川大学 | Molar orthodontic appliance capable of conveniently applying orthodontic force |
| CN206151609U (en) * | 2016-07-08 | 2017-05-10 | 宁波口腔医院有限公司 | After push to jaw device of grinding one's teeth in sleep |
| US9980791B1 (en) * | 2017-02-08 | 2018-05-29 | Metal Industries Research & Development Centre | Orthodontic remodeling device |
| CN208435816U (en) * | 2017-12-08 | 2019-01-29 | 西安交通大学医学院第一附属医院 | A kind of correction draws augmentor automatically |
| CN210494278U (en) * | 2019-06-13 | 2020-05-12 | 胡骁颖 | Push molar backward orthodontic appliance |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202113175U (en) * | 2011-06-02 | 2012-01-18 | 杨勇 | Device for distal movement of maxillary molars |
| US10646308B2 (en) * | 2015-03-19 | 2020-05-12 | Joseph Yousefian | Dual expanding palatal distractor |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206151609U (en) * | 2016-07-08 | 2017-05-10 | 宁波口腔医院有限公司 | After push to jaw device of grinding one's teeth in sleep |
| CN106580489A (en) * | 2017-01-24 | 2017-04-26 | 四川大学 | Molar orthodontic appliance capable of conveniently applying orthodontic force |
| US9980791B1 (en) * | 2017-02-08 | 2018-05-29 | Metal Industries Research & Development Centre | Orthodontic remodeling device |
| CN208435816U (en) * | 2017-12-08 | 2019-01-29 | 西安交通大学医学院第一附属医院 | A kind of correction draws augmentor automatically |
| CN210494278U (en) * | 2019-06-13 | 2020-05-12 | 胡骁颖 | Push molar backward orthodontic appliance |
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