Special micro-implant nail for orthodontics through micro-arc oxidation surface treatment
By performing microarc oxidation surface treatment on the threaded nail body of EMAS micro-implanted retention nails, the existing micro-implanted nails are difficult to withstand large loads and easy to loosen and fall off, and higher stability and orthopedic strength tolerance are achieved.
Patent Information
- Application Number
- CN202420799119.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Existing micro-implanted nails are difficult to withstand loads of more than 200g, and will displace when subjected to large orthodontic forces in the early stage, making it difficult to meet the complex movement of teeth and are prone to loosening and falling off.
By performing microarc oxidation surface treatment on the threaded nail body of EMAS micro-implantation retention nails, a porous coating is formed, which increases the formation of new bones around the nails and increases the binding rate of nails.
It significantly increases the stability of micro-implanted nails, can withstand orthopedic strength of more than 200g, and improves the efficacy of front traction treatment for small patients with small bone type III miscombination.
Smart Images
Figure CN222444369U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses a micro-implant nail for oral orthodontics with a micro-arc oxidation surface treatment, relates to the technical field of oral orthodontics, and in particular to a micro-implant nail for oral orthodontics with a micro-arc oxidation surface treatment. Background Art
[0002] The incidence of skeletal Class III malocclusion in my country is as high as about 14%, and about 42% to 63% of patients with skeletal Class III malocclusion are accompanied by maxillary underdevelopment. Adolescent patients with skeletal Class III malocclusion with maxillary underdevelopment not only affect the healthy development of their craniomaxillofacial region, but also affect the beauty of the face, and have adverse effects on the patient's psychology and oral function. At present, scholars at home and abroad believe that it is very necessary for adolescent patients with skeletal Class III malocclusion to undergo maxillary anterior traction during the peak period of growth and development. Studies have shown that skeletal traction is more effective for the deformity of adolescent patients with skeletal Class III malocclusion.
[0003] The extramucosal miniplate anchorage system (EMAS) has good clinical effects as an anterior traction implant anchorage system. Although micro-implant screws can provide better anchorage effects, it is difficult to withstand a load greater than 200g. Studies have shown that after orthodontic force is applied through micro-implant screws, especially when subjected to large orthodontic forces in the early stage, a displacement of 1.0 to 1.5 mm will occur in the direction of force, making it more difficult to meet the complex tooth movement pattern, and it is easy to loosen and fall off clinically.
[0004] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of micro-arc oxidation surface treated micro-implant for orthodontics, so as to overcome the problems existing in the prior art. Summary of the invention
[0005] According to the above-mentioned prior art, the micro-implant screw proposed is difficult to withstand a load greater than 200g. When subjected to a large orthodontic force in the early stage, it will displace 1.0 to 1.5mm in the direction of force, which is even more difficult to meet the complex tooth movement mode. It is easy to loosen and fall off in clinical practice. A micro-implant screw for oral orthodontics with a micro-arc oxidation surface treatment is provided. The utility model mainly performs a micro-arc oxidation surface treatment on the threaded nail body of the EMAS micro-implant retention nail. In order to prevent the tip of the retention nail from becoming blunt, the 1 / 3 of the nail tip is not subjected to micro-arc oxidation surface treatment. After the micro-arc oxidation surface treatment, the surface of the retention nail presents a porous coating, and the coating has good bonding strength, has better wettability and higher roughness. Experiments show that the nail-bone bonding rate increases, and new bone formation around the nail is significant. EMAS can be expected to become the main implant support system dedicated to anterior traction.
[0006] The technical means adopted by the utility model are as follows:
[0007] A micro-implant nail for oral orthodontics with a micro-arc oxidation surface treatment, which comprises a nail cap, a nail neck and a threaded nail body from top to bottom;
[0008] Furthermore, a base portion is processed between the top cap portion and the nail neck portion to prevent the micro-titanium plate from sliding down and compressing the mucosa.
[0009] Furthermore, the top hat portion includes: a hat crown at the top and a hat neck at the bottom;
[0010] Furthermore, the lower portion of the neck is connected to the top of the base portion.
[0011] Further, the base portion is a columnar hexagonal structure, and each surface is provided with a flat buckle that can be used to apply orthodontic force at the same time;
[0012] Furthermore, the edge of the hexagonal structure is provided with a shallow groove for increasing the retention force of the implant tool.
[0013] Furthermore, the upper portion of the threaded nail body is a micro-arc oxidation treated portion, and the bottom nail head is an untreated portion that does not require micro-arc oxidation treatment;
[0014] Furthermore, the exterior of the treatment portion is subjected to micro-arc oxidation treatment to form a micro-arc oxidation layer.
[0015] Furthermore, the thickness of the micro-arc oxidation layer is 8-9 μm.
[0016] Furthermore, the surface of the micro-arc oxidation layer presents a "crater"-like structure with uneven surfaces, clear pores, and uniform voids.
[0017] Compared with the prior art, the utility model has the following advantages:
[0018] 1. The micro-arc oxidation surface-treated micro-implant nail for oral orthodontics provided by the utility model has a micro-arc oxidation surface treatment. After the micro-implant nail body is treated with micro-arc oxidation, the roughness and the amount of new bone around the nail are increased, which can significantly increase the stability of the micro-implant nail.
[0019] 2. The micro-implant nail for oral orthodontics with micro-arc oxidation surface treatment provided by the utility model can withstand a correction force of more than 200g, improve the efficacy of anterior traction treatment for small patients with skeletal Class III malocclusion, reduce the degree of skeletal deformity of patients and even the proportion of future surgical treatment;
[0020] 3. The micro-implant nail for oral orthodontics with micro-arc oxidation surface treatment provided by the utility model can be used as a fixing nail for EMAS, and can also be used alone as a micro-implant support.
[0021] 4. The micro-implant nail for oral orthodontics with micro-arc oxidation surface treatment provided by the utility model is simple to operate clinically and easier to promote clinically, so that more young patients can benefit from it.
[0022] In summary, the technical solution of the utility model solves the problem that the micro-implant in the prior art is difficult to withstand a load greater than 200g. When subjected to a large orthodontic force in the early stage, it will displace 1.0 to 1.5 mm in the direction of the force, making it more difficult to meet the complex tooth movement patterns and prone to loosening and falling off clinically. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0024] Figure 1 This is a schematic diagram of the structure of the utility model;
[0025] Figure 2 This is an electron microscope picture of the surface of the treatment part of the utility model.
[0026] In the figure: 1, crown 2, hat neck 3, flat buckle 4, shallow groove 5, nail neck 6, treated part 7, untreated part. DETAILED DESCRIPTION
[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0030] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0031] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0034] like Figure 1 As shown, the utility model provides a micro-implant nail for oral orthodontics with a micro-arc oxidation surface treatment, which comprises a nail cap, a nail neck 5 and a threaded nail body from top to bottom;
[0035] A base portion is processed between the top cap portion and the nail neck 5 to prevent the micro-titanium plate from sliding down and compressing the mucosa.
[0036] The top hat part includes: a crown 1 at the top and a neck 2 at the bottom; the crown is an arc-shaped crown structure with a diameter of 2.0 mm; the height of the neck 2 is 1.0 mm, and its lower part is connected to the top of the base part.
[0037] The base part is a columnar hexagonal structure with a diameter of 2.8 mm, and each surface is provided with a flat buckle 3 which can be used to apply orthodontic force;
[0038] The edge of the hexagonal structure is provided with a shallow groove 4 for increasing the retention force of the implant tool.
[0039] Between the base portion and the screw body is a screw neck portion 5 having a height of 0.8 mm and a diameter of 1.6 mm.
[0040] The length of the threaded nail body is 6 mm, the upper part is a micro-arc oxidation treated part 6, and the 2-3 threads at the bottom of the nail head are untreated parts 7 that do not require micro-arc oxidation treatment; the outside of the treated part 6 is treated with micro-arc oxidation to form a micro-arc oxidation layer.
[0041] The thickness of the micro-arc oxidation layer is 8-9μm.
[0042] The surface of the micro-arc oxidation layer is an uneven "crater" structure with clear pores and uniform gaps.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A micro-implant nail for oral orthodontics with a micro-arc oxidation surface treatment, which comprises, from top to bottom, a nail cap, a nail neck (5) and a threaded nail body; characterized in that: A base portion is processed between the nail cap portion and the nail neck portion (5) to prevent the micro-titanium plate from sliding down and compressing the mucosa; The base portion is a columnar hexagonal structure, and each surface is provided with a flat buckle (3) for applying orthodontic force; The edge of the hexagonal structure is provided with a shallow groove (4) for increasing the retention force of the implant tool; The upper portion of the threaded nail body is a micro-arc oxidation treated portion (6), and the bottom nail head is an untreated portion (7) that does not require micro-arc oxidation treatment; The exterior of the treatment portion (6) is subjected to micro-arc oxidation treatment to form a micro-arc oxidation layer.
2. The micro-arc oxidation surface treated micro-implant for orthodontics according to claim 1, characterized in that: The nail cap part comprises: a cap crown (1) at the top and a cap neck (2) at the bottom; The lower part of the cap neck (2) is connected to the top of the base part.
3. The micro-arc oxidation surface treated micro-implant for orthodontics according to claim 1, characterized in that: The thickness of the micro-arc oxidation layer is 8-9 μm.
4. The micro-arc oxidation surface treated micro-implant for orthodontics according to claim 1, characterized in that: The surface of the micro-arc oxidation layer is uneven, with clear and uniform pores.