CN107714209B - Planting nail positioning device and positioning method thereof - Google Patents
Planting nail positioning device and positioning method thereof Download PDFInfo
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- CN107714209B CN107714209B CN201711079513.6A CN201711079513A CN107714209B CN 107714209 B CN107714209 B CN 107714209B CN 201711079513 A CN201711079513 A CN 201711079513A CN 107714209 B CN107714209 B CN 107714209B
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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
- A61C8/0089—Implanting tools or instruments
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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
- A61C2204/00—Features not otherwise provided for
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Dental Prosthetics (AREA)
Abstract
A planting nail positioning device relates to the technical field of orthodontic treatment. The device includes planting nail implantation ware, its characterized in that: the planting nail positioning device further comprises a sleeve, a sleeve limiting rod and a positioning rod; the positioning rod consists of a horizontal arm and a vertical arm. The device simple structure, reasonable in design can greatly reduce the risk of damaging adjacent tooth root at planting in-process, realizes the implantation of accurate positioning and guide planting nail, has reduced the other operating time of chair simultaneously, convenient operation, and the practicality is strong, has great clinical use value and market prospect.
Description
Technical Field
The invention relates to the technical field of orthodontic treatment, in particular to a planting nail positioning device and a positioning method thereof.
Background
Along with the development of micro-implant nails technology, implant nails are more and more widely applied to the field of orthodontic treatment, are mainly used for enhancing posterior tooth anchorage, adduction of upper front teeth, remote movement of upper and lower dental arches, depression of front teeth, grinding teeth and the like, and have obvious clinical effects. However, in the prior art, in the process of implanting micro-implant nails, the risk of damaging the tooth root of the adjacent tooth exists, so that the tooth root of the adjacent tooth is absorbed, and even the risk of loosening and pulling out is caused. For some patients with soft tissue hypertrophy of the cheek and limited opening, the traditional implantation technology is obviously limited, and even only the treatment can be abandoned.
At present, in most of clinical cases, micro-implant nails are implanted into alveolar bones between adjacent tooth roots from the buccal side, and at this time, there is a risk that the implant nails damage the tooth roots and the implant nails enter the maxillary sinus. For this reason, scholars have been trying to develop a practical and reliable implant positioning device. In the early stage, a metal wire fixed in an arch wire or a tooth adjacent space is used to extend to an implantation area (a certain part is bent into a ring shape at the top end), and the optimal implantation site is estimated through imaging on a root tip sheet, but the method is influenced by the irradiation direction, and a positioned mark is very inaccurate and has a great defect. Three-dimensional positioning devices are sequentially arranged at the later stage, such as an implantation site and a direction are predetermined by using a plaster model, then the implantation site and the direction are transferred into a patient mouth through a self-setting plastic plywood, and if the position and the direction are proper, a guiding drill is drilled in through X-ray examination, otherwise, the positioning device is repositioned; still there is a three-dimensional direction adjustable guide tube, still develop the location on the X piece through the guide tube, if guide tube's position and direction are improper, even only minor deviation still probably can cause the planting nail to implant the position deviation, and the improper planting nail implantation position exists the injury adjacent tooth root, causes even the root absorption of adjacent tooth, and the risk that the tooth was not hard up was pulled out brings the injury for the patient. In order to ensure that the X-ray projection direction is consistent with the implantation direction of the implantation nails, a radiation positioning device is additionally arranged, but the initial selection of implantation sites and directions can still be determined by a doctor according to root tip sheets and subjective experience, and if the implantation sites and directions are unsuitable, the implantation sites and directions can still be repositioned and photographed. The above method has the following disadvantages: (1) The position of the tooth root is determined by shooting an X-ray film/CBCT (cone beam ct), so that the cost is high and the radiation is large; (2) The positioning is inaccurate, and the improper implantation position of the implantation nails is easily caused; (3) The positioning device is required to be manufactured according to the shape of the dental crown, and a technician is required to cooperate, so that the operation time beside a chair is long. (4) The method needs personalized production, has high cost and no market popularization value. In view of the above, there is no ideal micro-implant nail implantation apparatus and positioning method.
Disclosure of Invention
Aiming at the defects in the background technology, the invention aims to provide a planting nail positioning device and a positioning method thereof, which can accurately position and guide the implantation of planting nails.
The invention is realized by the following technical scheme:
the utility model provides a planting nail positioner, includes planting nail implantation ware, planting nail implantation ware mainly comprises handle, booster and dead lever, its characterized in that: the planting nail positioning device further comprises a sleeve, a sleeve limiting rod and a positioning rod; the sleeve is hollow and consists of a long sleeve and a short sleeve fixedly connected with the long sleeve; the fixed rod penetrates through the hollow long sleeve pipe cavity and is movably connected with the hollow long sleeve pipe cavity; one end of the sleeve limiting rod is fixedly connected with the handle of the planting nail implanter, and the other end of the sleeve limiting rod penetrates through the lumen of the short sleeve to be movably connected with the short sleeve; the front end of the large sleeve is provided with a positioning rod; the positioning rod consists of a horizontal arm and a vertical arm.
The planting nail positioning device is characterized in that: the handle of the planting nail implanter is provided with a screw hole and an insertion hole for assembling the sleeve limiting rod, a screw matched with the screw hole is arranged in the screw hole, and the sleeve limiting rod is fixedly connected to the handle by screwing the screw.
The planting nail positioning device is characterized in that: the sleeve limiting rod is Z-shaped and consists of a connecting rod and a folding rod fixedly connected with the connecting rod, one end of the folding rod penetrates through the short sleeve, and the front end of the folding rod is provided with a bump which is used for preventing the short sleeve from sliding out of the folding rod when sliding on the folding rod.
The planting nail positioning device is characterized in that: the positioning rod is provided with scales.
The planting nail positioning device is characterized in that: the horizontal arm and the vertical arm of the positioning rod are positioned on the same plane, the plane is vertical to the fixed rod, and the horizontal arm and the vertical arm are respectively provided with a pair and are symmetrically distributed left and right; wherein the horizontal arm is perpendicular to the fixed rod.
The planting nail positioning device is characterized in that: the section of the rear end of the connecting rod is semicircle, and the part of the connecting rod positioned in the handle inserting hole is semi-cylindrical.
The planting nail positioning device is characterized in that: the scale starting point 0 scale on the positioning rod is positioned at the joint of the positioning rod and the long sleeve.
The planting nail positioning method is characterized by comprising the following steps of:
1) Preparing the planting nail positioning device;
2) Determining implantation points of implantation nails according to the oral cavity model of the patient, determining implantation points of implantation nails according to the safe implantation area on the oral cavity model, and marking; the safe planting area is generally positioned at a position 5-7mm away from the gingival margin of two adjacent teeth;
3) Bending the positioning rod: respectively calculating the included angle and the length of the two vertical arms according to the position of the implant point of the implant nail and the position of the bracket, and bending the positioning rod to obtain an implant nail positioning device matched with the oral cavity of the patient;
4) Installing planting nails into planting nail assembly holes at the front end of the fixing rod;
5) The horizontal arm of the positioning rod is placed in the bracket slot on the patient's tooth: according to the principle that the horizontal groove of the orthodontic bracket is vertical to the long axis of the tooth, the horizontal arm of the positioning rod is placed in the groove of the horizontal bracket of the patient, and the horizontal arm and the long axis of the tooth are vertical to each other at the moment; the fixed rod is mutually perpendicular to the horizontal arm;
6) Implanting planting nails: the horizontal arm of the positioning rod can freely rotate in the bracket groove, after the horizontal arm rotates to a proper implantation angle, the booster is slowly rotated to slowly screw the implant nail into the alveolar bone, and when the head of the implant nail is still 2mm away from the gingival margin, the rotation is stopped, the implant is pulled out, and the implantation is completed.
Suitable implantation angles are: the upper jaw implant nail forms an angle of 30 degrees with the buccal alveolar bone, and the lower jaw implant nail forms an angle of 10 degrees with the buccal alveolar bone.
The planting nail positioning device is simple in design and low in cost, a positioning system is additionally arranged on the basis of an existing planting nail implanter, the positioning system mainly comprises a sleeve, a sleeve limiting rod and a positioning rod, an optimal planting point of planting nails is determined according to a safe planting area, the length and the included angle of a vertical arm are calculated according to the optimal planting point, and the planting nail positioning device suitable for the oral cavity of a patient is obtained. When the implant is operated, the horizontal arm of the positioning rod is placed in the horizontal bracket groove of a patient, the horizontal arm can freely rotate in the bracket groove, after the implant rotates to a proper implantation angle, the booster is slowly rotated to slowly screw the implant nail into the alveolar bone, when the head of the implant nail is still 2mm away from the gingival margin, the rotation is stopped, the implant is pulled out, and the implantation is completed. The invention has the following beneficial effects:
(1) The horizontal arm is placed in the groove of the horizontal bracket of the patient, so that the implant nail is ensured to be positioned on the vertical plane of the connection line of two points of the adjacent tooth base (namely the junction of the tooth neck and the gum of two adjacent teeth), and the risk of damaging the tooth root of the adjacent tooth in the implant process is greatly reduced;
(2) The positioning rod is provided with scales, so that implantation in a safe area is ensured;
(3) The horizontal arm can freely rotate in the bracket groove, so that the implantation height and angle of the planting nails can be freely controlled;
(4) The planting nail positioning device suitable for the patient is prepared in advance, the planting nails are only required to be assembled on the fixing rods during actual operation, the horizontal arms are placed in the grooves of the horizontal brackets of the patient, and the booster is pushed to complete the implantation of the planting nails, so that the operation time beside the chair is greatly shortened;
(5) Simple structure, convenient operation, strong practicability, and great clinical use value and market prospect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic side view of a bushing stop lever according to the present invention;
FIG. 3 is a schematic view of the structure of the connecting rod at the handle end of the implant nail implanter according to the present invention;
FIG. 4 is a schematic view of the structure of the positioning rod before bending in the present invention;
FIG. 5 is a schematic view of the structure of the positioning rod after bending;
FIG. 6 is a schematic illustration of labeling on a patient's oral model;
FIG. 7 is a schematic illustration of the present invention after assembly with a planting pin;
FIG. 8 is a schematic view of the structure of the invention after the positioning rod is connected with the bracket in the use state;
FIG. 9 is a schematic view of the implant nail after implantation in the patient's mouth;
in the figure: 1-a handle; 2-a booster; 3-fixing rods; 4-sleeve; 4-1-long sleeve; 4-2-short sleeve; 5-a sleeve limiting rod; 5-1-connecting rod; 5-2-folding rod; 5-3-bump; 6-positioning rods; 6-1-horizontal arm; 6-2-vertical arms; 6-3-scale; 7-fixing screws; 8-planting nails; 9-brackets.
Detailed Description
The invention is described in further detail below with reference to fig. 1-9.
Planting nail positioningThe device comprises a planting nail implanter, which can refer to the prior art,such as Ormco Co LtdThe planting nail implanter mainly comprises a handle 1, a booster 2 and a fixed rod 3, and in order to realize the positioning function, a planting nail positioning system (see figure 1) is additionally arranged on the planting nail implanter and mainly comprises a sleeve 4, a sleeve limiting rod 5 and a positioning rod 6; the sleeve 4 is hollow and consists of a long sleeve 4-1 positioned below and a short sleeve 4-2 positioned above; the long sleeve 4-1 is fixedly connected with the short sleeve 4-2; a fixed rod 3 is arranged in the central cavity of the long sleeve 4-1, namely one end of the fixed rod 3 penetrates through the lumen of the long sleeve 4-1, and when the sleeve limiting rod 5 is not fixed with the implant nail implanter, the long sleeve 4-1 can rotate around the fixed rod 3 and can also slide back and forth along the fixed rod 3; in order to assemble the positioning system on the planting nail implanter, the screw hole and the insertion hole for assembling the sleeve limit rod 5 are arranged on the handle 1 of the planting nail implanter, the screw hole is communicated with the insertion hole and is perpendicular to the insertion hole, the screw hole is internally provided with a screw 7 matched with the screw hole, and the sleeve limit rod 5 is fixedly connected to the handle 1 by screwing the screw 7. The sleeve limiting rod 5 is preferably provided with a Z-shaped structure (see fig. 2), and comprises a connecting rod 5-1 and a folding rod 5-2 fixedly connected with the connecting rod, one end of the folding rod 5-2 penetrates through the short sleeve 4-2, and in order to realize that the short sleeve 4-2 slides back and forth on the folding rod 5-2 and does not slide out of the folding rod, a protruding block 5-3 is additionally arranged at the front end of the folding rod 5-2 so as to prevent the sleeve 4 from sliding out. The rear end of the connecting rod 5-1 is inserted into the insertion hole of the handle 1, and the sleeve limit rod 5 is fixed on the handle by tightening the screw 7. In order to achieve a more firm fixation of the sleeve stopper 5, the rear end of the connecting rod 5-1 (the portion inserted into the handle 1, see fig. 3) is provided in a semi-cylindrical shape with a semicircular cross section facing downward.
In order to realize accurate positioning, a positioning rod 6 is arranged at the front end of the large sleeve 4-1, the positioning rod 6 consists of a horizontal arm 6-1 and a vertical arm 6-2, and the positioning rod 6 is preferably provided with a scale 6-3; the scale of "0" is located at the top end (i.e. the junction of the long sleeve and the locating rod). Before the positioning rod is bent, the structure is shown in fig. 4. The positioning rod bending is performed as follows: taking an oral cavity model of a patient, calculating an optimal planting point on the oral cavity model, and marking. The region is generally located at a position 5-7mm away from the gingival margin of two adjacent teeth (as shown in fig. 6, the point c where the planting nails are located, the point a where the neck of the left adjacent tooth meets the gingiva, the point b where the neck of the right adjacent tooth meets the gingiva, the bc connecting line is perpendicular to the long axis of the tooth, the planting nails are located on the middle vertical plane of the line segment bc, the planting nail planting point c is determined according to the safe planting region, the outer sides of the horizontal slots of the brackets of two adjacent teeth of a patient are respectively marked with the point m and the point n, the points cm and cn are connected, the point cm and the gingival margin are marked as the point e, the point cn and the gingival margin are marked as the point f, the lengths of the line segment cm and the cn are respectively measured, the lengths of the line segment cm and the line segment cn are equal because the point c is located on the middle vertical line of the line segment bc, the length of the line segment cm and the line segment cn is equal to the length of the vertical arm, then the angle mcb is measured, the angle is the angle of the vertical arm, the length and the angle of the vertical arm is the angle of the vertical arm, the positioning rod is bent according to the length and the angle of the vertical arm, the horizontal arm 6-2 and the horizontal arm 6-1 are respectively marked as the point m, the point and the distance between the vertical arm and the safe vertical arm and the long axis direction of the vertical arm is the distance c and the point c and the distance from the point c to the point e is equal to the normal point c-7 mm. The structure schematic diagram of the bent positioning rod is shown in fig. 5. The horizontal arm 6-1 and the vertical arm 6-2 of the positioning rod 6 are positioned on the same plane, the plane is vertical to the fixed rod 3 and the sleeve 4, and the horizontal arm and the vertical arm are respectively provided with a pair and are symmetrically distributed left and right; wherein the horizontal arm is mutually perpendicular to the fixed rod 3; the plane formed by the left and right 2 vertical arms is also vertical to the fixed rod 3.
In operation, the method comprises the following steps:
1) Preparing the planting nail positioning device;
2) Determining implantation points of implantation nails, namely taking an oral cavity model of a patient, determining implantation points of implantation nails on the oral cavity model according to a safe implantation area, and marking;
3) Bending a positioning rod, namely respectively calculating the included angle and the length of two vertical arms according to the position of the implant point of the implant nail and the position of the bracket, and bending the positioning rod (see the bending method of the positioning rod, which is not described herein), so as to obtain an implant nail positioning device matched with the oral cavity of a patient;
4) Installing planting nails into planting nail assembly holes at the front end of the fixing rod;
5) The horizontal arm of the positioning rod is placed in the bracket slot on the patient's tooth: according to the principle that the horizontal groove of the orthodontic bracket is vertical to the long axis of the tooth, the horizontal arm of the positioning rod is placed in the groove of the horizontal bracket of the patient, and the horizontal arm and the long axis of the tooth are vertical to each other at the moment; the fixed rod is mutually perpendicular to the horizontal arm;
6) Implanting planting nails: the horizontal arm of the positioning rod can freely rotate in the bracket groove, after the horizontal arm rotates to a proper implantation angle, the booster is slowly rotated to slowly screw the implant nail into the alveolar bone, and when the head of the implant nail is still 2mm away from the gingival margin, the rotation is stopped, the implant is pulled out, and the implantation is completed.
Because the horizontal arm of the positioner can rotate in the horizontal groove of the bracket, the vertical arm is driven to rotate between two adjacent teeth, the free control of the implantation angle of the implant nails is realized, the implant nails cannot deviate left and right and are positioned on the middle vertical surface of the two-point connecting line of the adjacent tooth base (namely the junction of the tooth neck and the gum of the two adjacent teeth), and the risk of losing the adjacent tooth root in the implantation process is greatly reduced. The positioning rod is provided with scales, and the distance between 5 and 7mm from the gingival margin is indicated as an implanted safe area. At the implantation angle, the maxillary implant pin is generally at an angle of 30 ° to the buccal alveolar bone, and the mandibular implant pin is at an angle of 10 ° to the buccal alveolar bone.
Claims (8)
1. The utility model provides a planting nail positioner, includes planting nail implantation ware, planting nail implantation ware mainly comprises handle (1), booster (2) and dead lever (3), its characterized in that: the planting nail positioning device further comprises a sleeve (4), a sleeve limiting rod (5) and a positioning rod (6); the sleeve (4) is hollow and consists of a long sleeve and a short sleeve fixedly connected with the long sleeve; the fixed rod (3) passes through the hollow long sleeve pipe cavity and is movably connected with the hollow long sleeve pipe cavity; one end of the sleeve limiting rod (5) is fixedly connected with the handle (1) of the planting nail implanter, and the other end of the sleeve limiting rod penetrates through the lumen of the short sleeve to be movably connected with the short sleeve; the front end of the long sleeve is provided with a positioning rod (6); the positioning rod (6) consists of a horizontal arm (6-1) and a vertical arm (6-2), and is provided with scales (6-3).
2. A planting pin positioning device as set forth in claim 1 wherein: be equipped with screw hole and the insertion hole that is used for assembling sleeve pipe gag lever post (5) on planting nail implantation ware's handle (1), be equipped with rather than complex screw (7) in the screw hole, through screwing up screw (7) with sleeve pipe gag lever post (5) fixed connection on handle (1).
3. A planting pin positioning device as set forth in claim 1 wherein: the sleeve limiting rod (5) is Z-shaped and consists of a connecting rod (5-1) and a folding rod (5-2) fixedly connected with the connecting rod, one end of the folding rod penetrates through the short sleeve, and the front end of the folding rod is provided with a lug (5-3) which is used for preventing the short sleeve from sliding out of the folding rod when sliding on the folding rod.
4. A planting pin positioning device as set forth in claim 1 wherein: the horizontal arm (6-1) and the vertical arm (6-2) of the positioning rod (6) are positioned on the same plane, the plane is vertical to the fixed rod (3), and the horizontal arm and the vertical arm are respectively provided with a pair and are symmetrically distributed left and right; wherein the horizontal arm (6-1) is vertical to the fixed rod (3).
5. A planting pin positioning device as set forth in claim 1 wherein: the scale starting point 0 scale on the positioning rod is positioned at the joint of the positioning rod and the long sleeve.
6. A planting pin positioning device as set forth in claim 3 wherein: the section of the rear end of the connecting rod (5-1) is semicircle, and the part of the connecting rod, which is positioned in the handle inserting hole, is semi-cylindrical.
7. The planting nail positioning method is characterized by comprising the following steps of:
1) Preparing a planting pin positioning device according to any one of claims 1-6;
2) Determining implantation points of implantation nails according to the oral cavity model of the patient, determining implantation points of implantation nails according to the safe implantation area on the oral cavity model, and marking;
3) Bending the positioning rod: respectively calculating the included angle and the length of the two vertical arms according to the position of the implant point of the implant nail and the position of the bracket, and bending the positioning rod to obtain an implant nail positioning device matched with the oral cavity of the patient;
4) Installing planting nails into planting nail assembly holes at the front end of the fixing rod;
5) The horizontal arm of the positioning rod is placed in the bracket slot on the patient's tooth: according to the principle that the horizontal groove of the orthodontic bracket is vertical to the long axis of the tooth, the horizontal arm of the positioning rod is placed in the groove of the horizontal bracket of the patient, and the horizontal arm and the long axis of the tooth are vertical to each other at the moment; the fixed rod is mutually perpendicular to the horizontal arm;
6) Implanting planting nails: the horizontal arm of the positioning rod can freely rotate in the bracket groove, after the horizontal arm rotates to a proper implantation angle, the booster is slowly rotated to slowly screw the implant nail into the alveolar bone, and when the head of the implant nail is still 2mm away from the gingival margin, the rotation is stopped, the implant is pulled out, and the implantation is completed.
8. The method for positioning a planting nail according to claim 7, wherein: suitable implantation angles in step 6) are: the upper jaw implant nail forms an angle of 30 degrees with the buccal alveolar bone, and the lower jaw implant nail forms an angle of 10 degrees with the buccal alveolar bone.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079513.6A CN107714209B (en) | 2017-11-06 | 2017-11-06 | Planting nail positioning device and positioning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079513.6A CN107714209B (en) | 2017-11-06 | 2017-11-06 | Planting nail positioning device and positioning method thereof |
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| CN107714209A CN107714209A (en) | 2018-02-23 |
| CN107714209B true CN107714209B (en) | 2023-10-20 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969126B (en) * | 2018-08-06 | 2020-09-08 | 郑州大学第一附属医院 | Planting nail positioning device |
| CN111544140B (en) * | 2020-05-29 | 2021-10-01 | 西安交通大学口腔医院 | Implant leading-in actual measurement fixed point device |
| CN113180871A (en) * | 2021-05-21 | 2021-07-30 | 西安交通大学口腔医院 | Membrane nail implanter |
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| CN107714209A (en) | 2018-02-23 |
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