CN111166511A - Orthodontic anchorage micro-screw and using method - Google Patents
Orthodontic anchorage micro-screw and using method Download PDFInfo
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- CN111166511A CN111166511A CN202010097913.5A CN202010097913A CN111166511A CN 111166511 A CN111166511 A CN 111166511A CN 202010097913 A CN202010097913 A CN 202010097913A CN 111166511 A CN111166511 A CN 111166511A
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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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- Oral & Maxillofacial Surgery (AREA)
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Abstract
The invention discloses an orthodontic anchorage micro-screw and a use method thereof, wherein the orthodontic anchorage micro-screw comprises the following steps: the micro screw comprises a micro screw main body, a screw rod and a screw rod, wherein the micro screw main body comprises a head part, a neck part and a thread part which are sequentially connected, and a retaining groove is formed in the end face of the head part; the accessory comprises a fixing block and a connecting structure, the connecting structure is arranged at one end of the fixing block, the other end of the fixing block can be inserted into the fixing groove, and the connecting structure is used for connecting the traction assembly. The orthodontic anchorage micro-screw has reasonable structural design, and the range of the force application mode and the force application direction of the orthodontic anchorage micro-screw is enlarged by replacing the accessories, so that the orthodontic anchorage micro-screw can be more flexibly applied in orthodontic clinic, and adverse events of micro-screw fracture in operation are reduced.
Description
Technical Field
The invention belongs to the field of human body implanted medical appliances, and particularly relates to an orthodontic anchorage micro-screw and a using method thereof.
Background
Compared with the traditional orthodontic anchorage, the micro screw can provide absolute anchorage, and in the process of adducting anterior teeth in a double-process case, because traction force is applied to the alveolar bone through the micro screw, posterior teeth can hardly move forwards, and the anterior teeth can be adducted to the maximum degree to improve the process; in the case of full dentition posterior displacement, the micro-screw can also better back-push the molar, resulting in good correction results. With the assistance of the micro-screws, an orthodontist can control tooth movement more accurately without depending on the cooperation of patients; in addition, the miniscrew has the advantages of small volume, flexible use and the like, is widely used in clinic since 90 years, and plays an important role in treating some complex and serious malocclusion.
However, to ensure stability, the position of the miniscrew is typically one third of the height of the root apex, which in clinical use may lead to undesirable posterior depression due to the high direction of force applied.
Therefore, the development of the orthodontic anchorage micro-screw capable of providing various connection modes and the use method thereof is expected, the force application mode of the orthodontic anchorage micro-screw is increased, the range of the force application direction is expanded, and the orthodontic anchorage micro-screw can be more flexibly applied in orthodontic clinic.
Disclosure of Invention
The invention aims to provide an orthodontic anchorage micro-screw and a using method thereof, so that the orthodontic anchorage micro-screw can be more flexibly applied in orthodontic clinic.
In order to achieve the above object, the present invention provides an orthodontic anchorage miniscrew comprising:
the micro screw comprises a micro screw main body, a screw rod and a screw rod, wherein the micro screw main body comprises a head part, a neck part and a thread part which are sequentially connected, and a retaining groove is formed in the end face of the head part;
the accessory comprises a retaining block and a connecting structure, the connecting structure is arranged at one end of the retaining block, the other end of the retaining block can be inserted into the retaining groove, and the connecting structure is used for connecting a traction assembly.
Optionally, a ligation hole is formed in a side surface of the head, an axial direction of the ligation hole is perpendicular to a length direction of the miniscrew body, and the ligation hole penetrates through the head.
Optionally, the positioning groove is a cylindrical groove, the side wall of the cylindrical groove is provided with a positioning groove, and the positioning groove penetrates through the cylindrical groove along the axis direction of the cylindrical groove.
Optionally, the head is a regular hexagonal prism, the neck and the threaded portion are both cylindrical, and the free end of the threaded portion is a tip.
Optionally, the orthodontic anchorage micro-screw is made of tantalum alloy or titanium alloy.
Optionally, connection structure is the boss, the boss is held and the path is held including the big footpath that is connected, the path end connect in the retention block, be equipped with the cross recess on the top surface of big footpath end, the cross recess by the top surface downwardly extending of big footpath end reaches the retention block on the terminal surface of one end.
Optionally, the connection structure includes an extension rod and a hook, one end of the extension rod is hinged to the retention block, and the hook is mounted at the other end of the extension rod.
Optionally, the connecting structure is a draw bar, one end of the draw bar is fixedly connected to the retaining block, and the other end of the draw bar is provided with a cambered surface plug.
Optionally, the connecting structure is in a cap shape and is buckled at one end of the retaining block to protect the oral mucosa.
The invention also provides a use method of the orthodontic anchorage micro-screw, which comprises the following steps:
injecting an anesthetic at the implantation site;
the thread part of the main body of the miniscrew is driven to go deep into the implantation part until the neck part of the main body of the miniscrew is completely submerged into the soft tissue;
rotating the micro screw main body to enable the axis of the ligation hole to be along the horizontal direction;
placing a proper amount of medical glue into the retention groove;
inserting the other end of the retention block into the retention groove to fix the accessory on the head of the micro-screw body;
the orthodontic traction assembly is connected to the connecting structure at one end of the retention block.
The invention has the beneficial effects that: the micro-screw main body is implanted into the alveolar bone through the thread part, the accessory is installed on the head of the micro-screw main body by means of mechanical fixing force between the fixing groove and the fixing block and chemical fixing force of medical glue, the connecting structure on the accessory is utilized to connect the traction assembly for orthodontics, when the force application mode or the force application direction needs to be changed, the accessory only needs to be detached, and the attachment meeting the requirements is replaced. The orthodontic anchorage micro-screw has reasonable structural design, and the range of force application modes and force application directions of the orthodontic anchorage micro-screw is enlarged by replacing various accessories, so that the orthodontic anchorage micro-screw can be more flexibly applied in orthodontic clinic, and adverse events of micro-screw fracture in an operation are reduced.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic structural view of a miniscrew body according to one embodiment of the present invention.
Fig. 2 shows a top view of a miniscrew body according to one embodiment of the present invention.
FIG. 3 shows a schematic block diagram of an accessory according to an embodiment of the present invention.
FIG. 4 shows a schematic block diagram of an accessory according to one embodiment of the present invention.
FIG. 5 shows a schematic block diagram of an accessory according to one embodiment of the present invention.
FIG. 6 shows a schematic block diagram of an accessory according to an embodiment of the present invention.
Description of the reference numerals
1. A head portion; 1.1, a retention groove; 1.2, ligating holes; 2. a neck portion; 3. a threaded portion; 4. a retention block; 5. and (5) a connecting structure.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides an orthodontic anchorage miniscrew which comprises:
the micro screw comprises a micro screw main body, a screw rod and a screw rod, wherein the micro screw main body comprises a head part, a neck part and a thread part which are sequentially connected, and a retaining groove is formed in the end face of the head part;
the accessory comprises a fixing block and a connecting structure, the connecting structure is arranged at one end of the fixing block, the other end of the fixing block can be inserted into the fixing groove, and the connecting structure is used for connecting the traction assembly.
Specifically, with the miniscrew main part through the screw thread portion implant alveolar bone in, install the annex on the head of miniscrew main part with the help of the mechanical solid power between retention groove and the maintenance piece and the chemical solid power of medical glue, utilize the connection structure on the annex to connect just abnormal subassembly that pulls of usefulness, when needs change application of force mode or application of force direction, only need pull down the annex, the change for the annex that accords with the demand can. The orthodontic anchorage micro-screw has reasonable structural design, and the range of force application modes and force application directions of the orthodontic anchorage micro-screw is enlarged by replacing various accessories, so that the orthodontic anchorage micro-screw can be more flexibly applied in orthodontic clinic, and adverse events of micro-screw fracture in an operation are reduced.
As an alternative scheme, the side surface of the head is provided with a ligation hole, the axial direction of the ligation hole is perpendicular to the length direction of the micro-screw main body, and the ligation hole penetrates through the head.
Specifically, the ligation hole is used for penetrating the ligation wire, and when the ligation hole is used, the axis direction of the ligation hole is kept horizontal so as to facilitate the transverse penetration of the ligation wire.
As an alternative scheme, the retaining groove is a cylindrical groove, the side wall of the cylindrical groove is provided with the retaining groove, and the retaining groove penetrates through the cylindrical groove along the axis direction of the cylindrical groove.
Specifically, the retention groove is designed to be cylindrical, so that the retention block can be conveniently installed, and the positioning groove is formed in the side wall of the cylindrical groove and can prevent the retention block from rotating in the retention groove.
Alternatively, the head is of regular hexagonal prism shape, the neck and the threaded portion are both cylindrical, and the free end of the threaded portion is pointed.
In particular, the threaded portion is used to cut bone tissue through the alveolar bone, so the free end is pointed.
As an alternative, the orthodontic anchorage micro-screw is made of tantalum alloy or titanium alloy.
Specifically, the micro screw commonly used in clinic is made of titanium alloy material, and the accident that the micro screw is broken in the operation process due to insufficient rigidity also happens occasionally, so that the micro screw can be made of tantalum metal material, the micro screw is high in rigidity and has good biological safety, the stability of the orthodontic anchorage screw is improved, the clinical application range of the orthodontic anchorage screw is enlarged, and adverse events of breakage of the micro screw in the operation are reduced.
As an alternative scheme, the connecting structure is a boss, the boss comprises a large-diameter end and a small-diameter end which are connected, the small-diameter end is connected to the retaining block, a cross-shaped groove is formed in the top surface of the large-diameter end, and the cross-shaped groove extends downwards from the top surface of the large-diameter end to the end face of one end of the retaining block.
As an alternative, the connecting structure comprises an extension rod and a hook, one end of the extension rod is hinged to the fixing block, and the hook is installed at the other end of the extension rod.
As an alternative scheme, the connecting structure is a draw bar, one end of the draw bar is fixedly connected to the retaining block, and the other end of the draw bar is provided with a cambered surface plug.
As an alternative, the connecting structure is in a hat shape and is buckled at one end of the retaining block to protect the oral mucosa.
Specifically, by designing the accessories with different connecting structures, the range of force application modes and force application directions of the micro-screws can be enlarged, so that the micro-screws can be more flexibly applied in orthodontic clinic, when the force application modes or the force application directions need to be changed, only the accessories on the heads of the main bodies of the micro-screws need to be replaced, the micro-screws do not need to be taken down, new micro-screws do not need to be implanted, and the number of orthodontic operations and the steps are reduced.
The invention also provides a using method of the orthodontic anchorage micro-screw, which comprises the following steps:
injecting an anesthetic at the implantation site;
the thread part of the main body of the miniscrew is driven to go deep into the implantation part until the neck part of the main body of the miniscrew is completely submerged into the soft tissue;
rotating the micro screw main body to enable the axis of the ligation hole to be along the horizontal direction;
placing a proper amount of medical glue into the retention groove;
inserting the other end of the retention block into the retention groove to fix the accessory on the head of the micro-screw body;
the orthodontic traction assembly is connected to the connecting structure at one end of the retention block.
Specifically, when the accessory needs to be replaced, the accessory is directly detached, another applicable accessory is selected, and the accessory is retained in the same manner.
Examples
Fig. 1 shows a schematic structural view of a miniscrew body of the present embodiment; FIG. 2 shows a top view of the body of the miniscrew of the present embodiment; FIGS. 3 to 6 are schematic configuration views showing four accessories of the present embodiment, respectively;
an orthodontic anchorage miniscrew comprising:
the micro screw main body is made of tantalum, and comprises a head part 1, a neck part 2 and a thread part 3 which are sequentially connected as shown in fig. 1 and 2, wherein a retaining groove 1.1 is formed in the end face of the head part 1, a ligation hole 1.2 is formed in the side face of the head part 1, the axial direction of the ligation hole 1.2 is vertical to the length direction of the micro screw main body, and the ligation hole 1.2 penetrates through the head part;
the four accessories comprise a retention block 4 and a connecting structure 5, the retention block 4 is matched with the retention groove 1.1 in shape, the connecting structure 5 is arranged at one end of the retention block 4, the other end of the retention block 4 is inserted into the retention groove 1.1, and the connecting structure 5 is used for connecting a traction assembly;
as shown in fig. 3, the connection structure 5 of the first accessory is a boss, the boss includes a large-diameter end and a small-diameter end, the small-diameter end is connected to the retention block, a cross-shaped groove is formed in the top surface of the large-diameter end, and the cross-shaped groove extends downwards from the top surface of the large-diameter end to the end surface of one end of the retention block;
the second accessory is shown in fig. 4, the connecting structure 5 of which comprises an extension rod and a hook, one end of the extension rod is hinged to the retaining block, and the hook is arranged at the other end of the extension rod;
as shown in fig. 5, the connection structure 5 of the third accessory is a draw bar, one end of the draw bar is fixedly connected to the retaining block, and the other end of the draw bar is provided with a cambered surface plug;
the fourth accessory is shown in fig. 6, the connecting structure 5 of which is in a hat shape and is buckled at one end of the retaining block to protect the oral mucosa;
in this embodiment, head 1 of the miniscrew main body is a regular hexagonal prism with a side length of 1.25mm, neck 2 is diameter 1.7mm, length 2 mm's smooth cylinder, screw thread portion 3 is also a cylinder, and the free end of screw thread portion is most advanced, the pitch of screw thread portion is 0.5mm, the screw thread path is 1.2mm, the screw thread major diameter is 1.6mm, the thread depth is 0.2mm, the length of screw thread portion 3 is formulated according to clinical practical requirements, retention groove 1.1 is the cylinder type groove of degree of depth 1.5mm, be equipped with trapezoidal constant head tank on the lateral wall of cylinder type groove, the constant head tank link up the cylinder type groove along the axis direction of cylinder type groove, ligature hole 1.2 diameter is 0.6 mm.
In this embodiment, the retention block 4 is shaped to fit the retention groove 1.1, and includes a cylinder and a pair of positioning protrusions disposed on the side of the cylinder, wherein the positioning protrusions are trapezoidal and penetrate the side of the cylinder along the axial direction of the cylinder.
The orthodontic anchorage micro-screw has reasonable structural design, expands the range of force application modes and force application directions of the micro-screw by installing accessories with different connecting structures, enables the micro-screw to be more flexibly applied in orthodontic clinic and reduces adverse events of micro-screw fracture in an operation.
The invention also provides a using method of the orthodontic anchorage micro-screw, which comprises the following steps:
injecting an anesthetic at the implantation site;
the thread part of the main body of the miniscrew is driven to go deep into the implantation part until the neck part of the main body of the miniscrew is completely submerged into the soft tissue;
rotating the micro screw main body to enable the axis of the ligation hole to be along the horizontal direction;
placing a proper amount of medical glue into the retention groove;
inserting the other end of the retention block into the retention groove to fix the accessory on the head of the micro-screw body;
the orthodontic traction assembly is connected to the connecting structure at one end of the retention block.
When the orthodontic anchorage micro-screw is used, the accessory applicable to the treatment stage is selected after the orthodontic anchorage micro-screw is implanted, the accessory is fixed at the head of the orthodontic anchorage micro-screw by the aid of the chemical bonding force of medical adhesive through the mechanical retention force between the retention groove and the retention block, and then force application load is carried out according to clinical requirements. When the next treatment stage is started, the applicable accessories are replaced and fixed by the same method.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. An orthodontic anchorage miniscrew comprising:
the micro screw comprises a micro screw main body, a screw rod and a screw rod, wherein the micro screw main body comprises a head part, a neck part and a thread part which are sequentially connected, and a retaining groove is formed in the end face of the head part;
the accessory comprises a retaining block and a connecting structure, the connecting structure is arranged at one end of the retaining block, the other end of the retaining block can be inserted into the retaining groove, and the connecting structure is used for connecting a traction assembly.
2. The orthodontic anchorage miniscrew of claim 1, wherein the side of the head is provided with a ligature hole, the axial direction of the ligature hole is perpendicular to the length direction of the miniscrew body, and the ligature hole penetrates through the head.
3. The orthodontic anchorage miniscrew of claim 1, wherein the retaining groove is a cylindrical groove, the side wall of the cylindrical groove is provided with a retaining groove, and the retaining groove penetrates through the cylindrical groove along the axial direction of the cylindrical groove.
4. The orthodontic anchorage miniscrew of claim 1, wherein the head is regular hexagonal prism shaped, the neck and the threaded portion are both cylindrical, and the free end of the threaded portion is a tip.
5. The orthodontic anchorage miniscrew of claim 1, wherein the orthodontic anchorage miniscrew is made of tantalum alloy or titanium alloy.
6. The orthodontic anchorage miniscrew of claim 1, wherein the connecting structure is a boss, the boss comprises a large diameter end and a small diameter end which are connected, the small diameter end is connected to the retention block, a cross-shaped groove is arranged on the top surface of the large diameter end, and the cross-shaped groove extends downwards from the top surface of the large diameter end to the end surface of the one end of the retention block.
7. The orthodontic anchorage miniscrew of claim 1, wherein the connecting structure comprises an extension rod and a hook, one end of the extension rod is hinged to the retention block, and the hook is mounted to the other end of the extension rod.
8. The orthodontic anchorage micro-screw of claim 1, wherein the connecting structure is a draw bar, one end of the draw bar is fixedly connected to the retaining block, and the other end of the draw bar is provided with a cambered surface plug.
9. The orthodontic anchorage miniscrew of claim 1, wherein the connecting structure is in the shape of a hat and is fastened to the one end of the retention block to protect the oral mucosa.
10. Method of use of an orthodontic anchorage miniscrew according to any of claims 1 to 9, characterized in that it comprises the following steps:
injecting an anesthetic at the implantation site;
the thread part of the main body of the miniscrew is driven to go deep into the implantation part until the neck part of the main body of the miniscrew is completely submerged into the soft tissue;
rotating the micro screw main body to enable the axis of the ligation hole to be along the horizontal direction;
placing a proper amount of medical glue into the retention groove;
inserting the other end of the retention block into the retention groove to fix the accessory on the head of the micro-screw body;
the orthodontic traction assembly is connected to the connecting structure at one end of the retention block.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097913.5A CN111166511A (en) | 2020-02-18 | 2020-02-18 | Orthodontic anchorage micro-screw and using method |
| PCT/CN2020/104917 WO2021088429A1 (en) | 2020-02-18 | 2020-07-27 | Micro-screw, attachment, orthodontic anchorage, and method |
| DE202020107040.1U DE202020107040U1 (en) | 2020-02-18 | 2020-07-27 | Microscrew, accessory and orthodontic anchor |
| JP2021600044U JP3235492U (en) | 2020-02-18 | 2020-07-27 | Anchorage for microscrews, accessories and orthodontics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097913.5A CN111166511A (en) | 2020-02-18 | 2020-02-18 | Orthodontic anchorage micro-screw and using method |
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| Publication Number | Publication Date |
|---|---|
| CN111166511A true CN111166511A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010097913.5A Pending CN111166511A (en) | 2020-02-18 | 2020-02-18 | Orthodontic anchorage micro-screw and using method |
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| Country | Link |
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| CN (1) | CN111166511A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112515754A (en) * | 2020-12-15 | 2021-03-19 | 有研医疗器械（北京）有限公司 | Medical instrument screw |
| WO2021088429A1 (en) * | 2020-02-18 | 2021-05-14 | 北京大学口腔医学院 | Micro-screw, attachment, orthodontic anchorage, and method |
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Application publication date: 20200519 |