CN114795523A - Micro-magnetic orthodontic accelerator - Google Patents
Micro-magnetic orthodontic accelerator Download PDFInfo
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- CN114795523A CN114795523A CN202210426349.6A CN202210426349A CN114795523A CN 114795523 A CN114795523 A CN 114795523A CN 202210426349 A CN202210426349 A CN 202210426349A CN 114795523 A CN114795523 A CN 114795523A
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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
- A61C7/006—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions using magnetic force
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/002—Magnetotherapy in combination with another treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/06—Magnetotherapy using magnetic fields produced by permanent magnets
Abstract
The utility model provides a just abnormal accelerator of little magnetism relates to medical instrument technical field, and this just abnormal accelerator of little magnetism utilizes the principle that can produce induction magnetic field between the magnet, carries out exogenous compensation magnetic field to the tooth, resumes the required normal magnetic field microenvironment of periodontal tissue, helps improving the metabolism reconstruction of the soft or hard tissue of local periodontal of accepting just abnormal treatment, shortens treatment cycle, reduces the incidence of complication, and the magnetic field reconstruction of physiology rank can not cause the side effect to the human body yet simultaneously. The micro-magnetic orthodontic accelerator is simple in structure, small in size, convenient to wear, convenient to store, comfortable to wear and high in patient compliance. The novel micro-magnetic orthodontic accelerator can be used only by being worn into the oral cavity, has multiple use scenes, is convenient to use, and is easy to realize clinical popularization.
Description
Technical Field
The application relates to the technical field of medical appliances, in particular to a micro-magnetic orthodontic accelerator and a method for accelerating tooth movement.
Background
The tooth orthodontics can improve the tooth disorder condition, and can also play a role in improving the face color value of people, so that more and more people select to perform tooth orthodontics. The two biggest problems faced by current clinical orthodontic treatment are the long treatment period and complications of long-term treatment process, such as bone dehiscence, bone fenestration, tooth damage, root resorption, etc., which cause certain difficulties for both orthodontists and patients.
In order to shorten the treatment period of orthodontic treatment, the movement of teeth can be accelerated during the treatment process, and the currently common schemes for accelerating the movement of teeth are mainly divided into 3 categories: surgical (cortiotomy), physical (low energy laser, low intensity pulsed ultrasound) and pharmaceutical methods (injection of hormonal modulators). The orthodontic accelerator with the outfield regulation design formed by non-interventional physical stimulation is easier to accept by patients due to the painlessness, and is the development direction of orthodontic acceleration treatment.
However, the clinical effects of the existing physical orthodontic accelerators are greatly different among different patients no matter the teeth are accelerated by low-intensity pulse ultrasonic waves or low-energy infrared laser. The reason for analyzing the above is mainly that ultrasound and near infrared are exogenous interventions which do not exist in the natural state of the body, the optimal parameters for promoting the metabolism of periodontal soft and hard tissues are not clear, and the exogenous stimulation also brings potential side effects and medical risks to the local part and the whole body.
Disclosure of Invention
The utility model aims to provide a just abnormal accelerator of little magnetism to solve current just abnormal accelerator and have the problem of side effect and medical risk.
To achieve the above objects, the present application provides a micro-magnetic orthodontic accelerator, comprising:
the magnet mounting part comprises a first magnet mounting part and a second magnet mounting part which are oppositely arranged, a first magnet and a second magnet are respectively arranged in the first magnet mounting part and the second magnet mounting part, and the first magnet and the second magnet are arranged in pairs and are at least one pair;
the connecting part is connected with the same end of the first magnet mounting part and the second magnet mounting part which are oppositely arranged so as to form an accommodating space between the magnet mounting parts and the connecting part;
when the just abnormal accelerator of little magnetism uses, makes the tooth arrange in the accommodation space, first magnet installation department with second magnet installation department is located respectively the both sides of the tooth in the accommodation space, just first magnet with the second magnet with the root of tooth corresponds the setting, can form the micro-magnetic field between mated first magnet and the second magnet and act on the tooth root.
Preferably, the intensity of the micro magnetic field is 10-30 mT;
preferably, the intensity of the micro magnetic field is 10-20 mT.
Preferably, in the pair of first and second magnets, magnetic pole directions of the first and second magnets are arranged in the same direction in a connecting direction of the first and second magnets.
Preferably, the magnet installation part further comprises a third magnet installation part and a fourth magnet installation part which are oppositely arranged from top to bottom in the first magnet installation part and the second magnet installation part, the accommodating space comprises a first accommodating space and a second accommodating space which are opposite from top to bottom, the first magnet installation part, the second magnet installation part and the connecting part form a first accommodating space, the third magnet installation part, the fourth magnet installation part and the connecting part form a second accommodating space, the first accommodating space is used for placing maxillary teeth, and the second accommodating space is used for placing mandibular teeth.
Preferably, the magnet mounting part has a height to cover an alveolar bone of the root of the tooth.
Preferably, the connecting part is further provided with a third magnet, and the third magnet forms a micro magnetic field with the first magnet and the second magnet, respectively.
Preferably, the micro-magnetic orthodontic accelerator further comprises a fixing part, wherein the fixing part is arranged between the first magnet installation part and the second magnet installation part and connected with the connecting part.
Preferably, the fixing portion is provided with an opening so that the fixing portion forms a fixing ring.
Preferably, the materials of the micro-magnetic orthodontic accelerator except the magnet are all medical biological silica gel.
The application also provides a method for accelerating tooth movement, and the micro-magnetic orthodontic accelerator is used for stimulating the teeth for 20-40 min every day for 4-6 weeks.
Compared with the prior art, the beneficial effect of this application includes:
the utility model provides a little just abnormal accelerator of magnetism utilizes the principle that can produce induction magnetic field between the magnet, carries out exogenous compensation magnetic field to the tooth, resumes the required normal magnetic field microenvironment of periodontal tissue, helps improving the metabolism reconstruction of the soft or hard tissue of local periodontal of accepting just abnormal treatment, shortens treatment cycle, reduces the incidence of complication, and the magnetic field reconstruction of physiology level can not cause the side effect to the human body yet simultaneously.
The utility model provides a just abnormal accelerator of little magnetism simple structure, the volume is less, wears the convenience, is convenient for accomodate, wears comfortablely, and patient compliance is high. The novel micro-magnetic orthodontic accelerator can be used only by being worn into the oral cavity, has multiple use scenes, is convenient to use, and is easy to realize clinical popularization.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments are briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope of the present application.
FIG. 1 is a schematic diagram of the magnetic field intensity of a rat micro-magnetic orthodontic accelerator in the horizontal direction;
FIG. 2 is a schematic diagram of the magnetic field intensity of a rat micro-magnetic orthodontic accelerator in the vertical direction;
FIG. 3 is a schematic diagram of a rat micro-magnetic orthodontic accelerator applied to a rat;
FIG. 4 is a schematic diagram of a first molar movement of a rat using a rat micromagnetic orthodontic accelerator;
FIG. 5 is a statistical graph of the first molar movement distance of a rat using a rat micromagnetic orthodontic accelerator;
FIG. 6 is a graph showing the staining results of HE sections of rat tooth roots/alveolar bones;
FIG. 7 is a statistical graph of the weight change of rats during the experiment;
FIG. 8 is a schematic structural diagram of an embodiment of a micro-magnetic orthodontic accelerator;
fig. 9 is a schematic diagram of the use of an embodiment of the micromagnetic orthodontic accelerator.
Reference numerals:
100-micro magnetic orthodontic accelerator; 110-a magnet mounting portion; 10-a first magnet mounting portion; 101-a first magnet; 20-a second magnet mounting portion; 201-a second magnet; 120-a connecting portion; 301-a third magnet; 130-a containing space; 140-a fixed part; and (4) opening holes.
Detailed Description
The terms as used herein:
"prepared from … …" is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of … …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of … …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when the range "1 ~ 5" is disclosed, the ranges described should be construed to include the ranges "1 ~ 4", "1 ~ 3", "1 ~ 2 and 4 ~ 5", "1 ~ 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
In these examples, the parts and percentages are by mass unless otherwise indicated.
"part by mass" means a basic unit of measure indicating a mass ratio of a plurality of components, and 1 part may represent any unit mass, for example, 1g or 2.689 g. If we say that the part by mass of the component A is a part by mass and the part by mass of the component B is B part by mass, the ratio of the part by mass of the component A to the part by mass of the component B is a: b. alternatively, the mass of the A component is aK and the mass of the B component is bK (K is an arbitrary number, and represents a multiple factor). It is unmistakable that, unlike the parts by mass, the sum of the parts by mass of all the components is not limited to 100 parts.
"and/or" is used to indicate that one or both of the illustrated conditions may occur, e.g., a and/or B includes (a and B) and (a or B).
The application provides a micro-magnetic orthodontic accelerator 100, please refer to fig. 8, which is used for accelerating the movement of teeth in the orthodontic process of the teeth, so as to shorten the orthodontic period, the micro-magnetic orthodontic accelerator 100 can be used for people and animals, the specific use scene is not particularly limited, and the micro-magnetic orthodontic accelerator 100 mainly comprises a magnet installation part 110 and a connection part 120.
Wherein magnet installation part 110 includes relative first magnet installation part 10 and the second magnet installation part 20 that sets up, first magnet installation part 10 with be provided with first magnet 101 and second magnet 201 in the second magnet installation part 20 respectively, just first magnet 101 with second magnet 201 sets up in pairs, and is at least a pair of.
It can be understood that the first magnet 101 is installed in the first magnet installation portion 10, the second magnet 201 is installed in the second magnet installation portion 20, and the first magnet 101 and the second magnet 201 are arranged in pairs, for example, a pair of the first magnet 101 and the second magnet 201 may be provided, that is, one first magnet 101 corresponds to one second magnet 201, and the first magnet 101 and the second magnet 201 may also be provided in any number of pairs, such as two pairs, three pairs, four pairs, five pairs, six pairs, and seven pairs, and it is only necessary to ensure that one first magnet 101 and one second magnet 201 are arranged correspondingly.
Wherein the connecting portion 120 is used to connect the same ends of the first and second magnet mounting portions 10 and 20 which are oppositely disposed to form an accommodating space 130 between the magnet mounting portion 110 and the connecting portion 120, the accommodating space 130 is used to accommodate teeth to be moved with acceleration, and the teeth to be stimulated may be upper teeth and/or lower teeth.
It is understood that the micro-magnetic orthodontic accelerator 100 shown in fig. 8 is a sectional view, and in fact, the magnet mounting portion 110 has a height in a direction perpendicular to the connecting portion 120, so that an accommodating space 130 can be formed between the magnet mounting portion 110 and the connecting portion 120.
When the micro-magnetic orthodontic accelerator 100 is used, teeth are arranged in the accommodating space 130, the first magnet installation part 10 and the second magnet installation part 20 are respectively positioned at two sides of the teeth in the accommodating space 130, the first magnet 101 and the second magnet 201 correspond to the roots of the teeth, and a micro magnetic field can be formed between the paired first magnet 101 and the second magnet 201 to act on the roots of the teeth.
The arrangement shape of the teeth is generally similar to a U-shaped opening shape, so the accommodating space 130 can be similar to the arrangement shape of the teeth, and a row of teeth can be completely accommodated in the accommodating space 130; the accommodating space 130 may also accommodate only the teeth on two sides, but not the teeth in the arc direction, so that two rows of teeth are accommodated in the accommodating space 130 at the same time, for example, the accommodating space 130 shown in fig. 8 is used for accommodating the teeth on two sides. Whatever the accommodation means, it is sufficient to place the tooth to be moved between the first magnet 101 and the second magnet 201.
Because each tissue and organ of the human body commonly have a trace amount of magnetic field, the magnetic field has important significance for maintaining the normal physiological function of the organism, particularly for repairing and regenerating tissues. In the orthodontic treatment process, the application of the orthodontic force destroys the local normal magnetic field microenvironment of the periodontal tissues, and influences the metabolism and reconstruction of the tissues.
The utility model provides an orthodontic accelerator 100 of micromagnetic field utilizes the principle that can produce induction magnetic field between the magnet, will treat the tooth that removes and arrange in between two magnets, carries out the exogenous compensation magnetic field to the tooth, resumes the required normal magnetic field microenvironment of periodontal tissue, helps improving the metabolism reconstruction of the soft or hard tissue of local periodontal of accepting orthodontic treatment, shortens treatment cycle, reduces the incidence of complication, and the magnetic field reconstruction of physiology rank can not cause the side effect to the human body yet simultaneously. Therefore, the restoration and supplement of the micro magnetic field has great application prospect in the field of orthodontic acceleration.
The application provides a little just abnormal accelerator 100 of magnetism volume is less, wears the convenience, is convenient for accomodate. The novel micro-magnetic orthodontic accelerator 100 can be used only by being worn into the oral cavity, has multiple use scenes, is convenient to use, and is easy to realize clinical popularization.
The micro-magnetic orthodontic accelerator 100 is simple in structure, has no other electrical parts, generates a required micro-magnetic field by a micro-magnet, does not need to be charged, and is convenient to maintain.
The micro-magnetic orthodontic accelerator 100 is comfortable to wear, does not limit the use scene, can be used at any time period, does not affect the work and life, and has high patient compliance.
The micro-magnetic orthodontic accelerator 100 has the advantages of obvious effect of accelerating tooth movement, strong controllability and small side effect. Since the micro-magnetic orthodontic accelerator 100 is specifically applied to the root of a tooth, other bone tissues and muscle tissues are not affected, and side effects can be reduced; the micro magnetic field is generated by the induction of the magnet, the magnetic field intensity is close to the physiological magnetic field intensity, and compared with electromagnetic pulse, the micro magnetic field is gentler, the intensity is easier to control, and the side effect on the human body is small.
Finally, the micro-magnetic orthodontic accelerator 100 is very simple in structure, low in manufacturing cost, low in process complexity, easy to produce in large scale and batch, and convenient to popularize and apply the micro-magnetic orthodontic accelerator 100, and numerous components are not needed.
Preferably, the intensity of the micro magnetic field is 10-30 mT, the magnetic field intensity is close to the physiological magnetic field intensity, and the side effect is small.
Preferably, the intensity of the micro magnetic field is 10-20 mT.
In a preferred embodiment, in the pair of the first magnet 101 and the second magnet 201, the magnetic pole directions of the first magnet 101 and the second magnet 201 are arranged in the same direction in the connecting direction of the first magnet 101 and the second magnet 201.
Wherein, the connecting direction of each pair of the first magnet 101 and the second magnet 201 is through the tooth, a micro magnetic field is formed between each pair of the first magnet 101 and the second magnet 201 and acts on the tooth root between the first magnet 101 and the second magnet 201, and in order to better form the micro magnetic field between the first magnet 101 and the second magnet 201, the magnetic pole directions of the first magnet 101 and the second magnet 201 in the direction through the tooth are the same. Because all the magnets have N poles and S poles, and the magnetic field direction between the magnets returns to the S pole from the N pole, the magnetic pole direction between each pair of the first magnet 101 and the second magnet 201 is the same, so that the micro magnetic field can be better formed between the magnets on the two sides of the tooth in the accommodating space 130 and acts on the tooth.
For example, the first magnet 101 may have an S-pole in a direction close to the tooth and an N-pole in a direction away from the tooth, and then the second magnet 201 may have an N-pole in a direction close to the tooth and an S-pole in a direction away from the tooth, so that in a connection direction of the first magnet 101 and the second magnet 201, the magnetic poles of the first magnet 101 and the second magnet 201 are in the same direction, and the micro magnetic field has a direction in which the N-pole of the second magnet 201 faces the S-pole of the first magnet 101 and acts on the tooth.
In other embodiments, the direction of the first magnet 101 approaching the tooth may also be an N pole, and the direction of the first magnet moving away from the tooth may be an S pole, so that correspondingly, the direction of the second magnet 201 approaching the tooth is an S pole, and the direction of the second magnet moving away from the tooth is an N pole.
It is understood that the magnetic pole direction between each pair of the first magnet 101 and the second magnet 201 may be the same or different, and it is only necessary to satisfy that the magnetic pole direction of the first magnet 101 and the second magnet 201 in each pair of the first magnet 101 and the second magnet 201 is the same.
In a preferred embodiment, the magnet mounting portion 110 further includes a third magnet mounting portion (not shown) and a fourth magnet mounting portion (not shown) disposed opposite to the first magnet mounting portion 10 and the second magnet mounting portion 20, the accommodating space 130 includes a first accommodating space and a second accommodating space opposite to each other, the first magnet mounting portion 10, the second magnet mounting portion 20 and the connecting portion 120 form a first accommodating space 130, the third magnet mounting portion, the fourth magnet mounting portion and the connecting portion 120 form a second accommodating space, the first accommodating space is used for placing upper teeth, and the second accommodating space is used for placing lower teeth.
It is understood that the first and second magnet installation parts 10 and 20 are symmetrically disposed with the third and fourth magnet installation parts, respectively, using the connection part 120 as a symmetry axis, thereby forming the first and second accommodation spaces which are vertically symmetrical, and thus accelerating movement of the upper and lower teeth can be simultaneously performed. The vertical direction of the micro-magnetic orthodontic accelerator 100 is the direction perpendicular to the connecting portion 120 shown in fig. 8, that is, the directions toward the inside and the outside of the plane view of fig. 8 are the vertical direction of the micro-magnetic orthodontic accelerator 100.
Magnets are also arranged in the third magnet installation part and the fourth magnet installation part so as to form a micro magnetic field between teeth, and the arrangement principle of the magnets in the third magnet installation part and the fourth magnet installation part is the same as that of the magnets in the first magnet installation part 10 and the second magnet installation part 20, and the description is omitted.
Preferably, the magnet mounting part 110 has a height to cover the alveolar bone at the root of the tooth. Since the structure affecting the movement of the teeth is mainly the alveolar bone, the micro magnetic field generated between the first magnet 101 and the second magnet 201 can be ensured to act on the alveolar bone by highly covering the alveolar bone at the root of the teeth by the magnet mounting part 110, so that the acceleration effect is better.
Preferably, referring to fig. 8, the connecting portion 120 is further provided with a third magnet 301, and the third magnet 301, the first magnet 101 and the second magnet 201 form a micro magnetic field respectively.
When the accommodation space 130 of the micro-magnetic orthodontic accelerator 100 accommodates the teeth on both sides simultaneously, the micro-magnetic field formed between the first magnet 101 and the second magnet 201 needs to act on the teeth on both sides simultaneously, so that the magnetic field strength concentrates on the position between the teeth on both sides, and the third magnet 301 is arranged through the connecting part 120, so that the third magnet 301 forms the micro-magnetic field with the first magnet 101 and the second magnet 201 respectively, so that the micro-magnetic field can be formed on the teeth on both sides respectively, and the stimulation effect is better. By providing the third magnet 301 in the connecting portion 120, the use of the magnet can be saved on the premise of stimulating the teeth on both sides at the same time, thereby further saving the cost.
More preferably, with continued reference to fig. 8, the micro-magnetic orthodontic accelerator 100 further includes a fixing portion 140, wherein the fixing portion 140 is disposed between the first magnet mounting portion 10 and the second magnet mounting portion 20 and connected to the connecting portion 120. The fixing portion 140 is used to fix the micro-magnetic orthodontic accelerator 100 in the oral cavity, and the fixing portion 140 may be, for example, a stem shape, and has a length such that the fixing portion 140 can be extended out of the oral cavity, so that the mouth can be engaged with the fixing portion 140 after the micro-magnetic orthodontic accelerator 100 is installed.
Preferably, the fixing portion 140 is provided with an opening 40 such that the fixing portion 140 forms a fixing ring. The opening 40 may be adapted to fit over a tooth near the labial end to secure the micro-magnetic orthodontic accelerator 100.
Preferably, the materials of the micro-magnetic orthodontic accelerator 100 except the magnet are all medical biological silica gel, such as jelly-like silica gel, elastic solid silica gel, and more solid silica gel is used.
The silica gel has good biocompatibility, no irritation, no toxicity, no anaphylaxis and little organism rejection to human tissues; has good physical and chemical properties, can keep the original elasticity and softness during the contact process with body fluid and tissues, is not degraded, and is a stable inert substance. Can resist high temperature and can be disinfected. The processing and forming are convenient, the carving shape is easy to process, and the use is convenient.
The application also provides a method for accelerating tooth movement, and the micro-magnetic orthodontic accelerator is used for stimulating the teeth for 20-40 min every day for 4-6 weeks.
Embodiments of the present application will be described in detail below with reference to specific examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present application and should not be construed as limiting the scope of the present application. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
EXAMPLE 1 micro-magnetic orthodontic accelerator magnetic field distribution detection
Fig. 8 shows a rat micro-magnetic orthodontic accelerator designed by the applicant for verifying the effect of the present application, the rat micro-magnetic orthodontic accelerator is placed on a horizontal plane, the three-dimensional spatial magnetic field distribution of the micro-magnetic orthodontic accelerator is measured using a high-precision industrial gauss meter three-dimensionally driven by an additional motor, and the magnetic field distribution in the horizontal direction and the magnetic field distribution in the vertical direction are respectively measured, and the results are respectively shown in fig. 1 and fig. 2.
Through magnetic field intensity test, it can be seen that the intensity of the micro magnetic field generated by the micro magnetic orthodontic accelerator is about 10mT, which accords with physiological magnitude, and no matter in horizontal direction or vertical direction, the magnetic field is mainly distributed in the two-side molar area, and the magnetic field intensity of other areas is lower, which can effectively concentrate the micro magnetic effect on the tooth and alveolar bone needing to be accelerated.
Example 2 micro-magnetic orthodontic accelerator accelerates the movement of rat teeth
1. Installation of orthodontic devices: an anesthesia rat is injected in an abdominal cavity, orthodontic tension springs are arranged on maxillary teeth on two sides of the rat, the front ends of springs are tied with incisors to serve as anchorage, the rear ends of the springs are tied with first molar teeth, the left tension spring and the right tension spring are respectively arranged on the left side and the right side to apply orthodontic force (middle gravity) of 100g to the first molar teeth on the two sides of the rat, and the force application time is maintained for 4-6 weeks.
2. The application method of the micro-magnetic orthodontic accelerator comprises the following steps: the experimental group and the control group of rats were simultaneously administered 15 inhalational anesthesia to maintain the sedation, and the rats were opened with the upper and lower incisors with the rubber band to expose the posterior teeth. The micro-magnetic orthodontic accelerator (experimental group) is horizontally placed in a rat mouth of the experimental group, an accelerator outer die (control group) without a magnet is horizontally placed in a rat mouth of the control group, a first magnet and a second magnet are aligned to first molar teeth of upper jaw at two sides, a third magnet is aligned to upper palate of the rat, a front end fixing ring of the micro-magnetic orthodontic accelerator is sleeved on upper incisor teeth of the rat to be fixed, the application schematic diagram of the micro-magnetic orthodontic accelerator is shown in fig. 3 and fig. 9, and then micro-magnetic field stimulation is applied to teeth to be moved. In the operation process, the smooth air passage of the rat needs to be ensured, and the acceleration time is controlled to be 30 min/d. Rats in the experimental group and rats in the control group were accelerated once a day for a fixed period of time for 4-6 weeks.
Example 3 micromagnetic orthodontic Accelerator Effect detection index
1. The moving distance of the upper jaw of the experimental group (micromagnetic acceleration group) rats and the control group rats was analyzed by micro-CT scanning to analyze the moving speed of the teeth, and partial results are shown in fig. 4.
Animal experiments further verify the significance of the micro-magnetic field effect of the novel micro-magnetic orthodontic accelerator, and in the animal experiments, the moving distance of the first molar is obviously increased compared with that of a control group under the action of a micro-magnetic field of an experimental group. And the tooth moving distances of the rats in all experimental groups are subjected to statistical calculation to obtain an average value, the tooth moving distances of the rats in all control groups are subjected to statistical calculation to obtain a statistical result shown in figure 5, the average first molar moving distance of the rats in the acceleration group of the micro-magnetic orthodontic accelerator is 661.0 micrometers, the average first molar moving distance of the rats in the control group is 165.1 micrometers, and the orthodontic tooth moving effect is improved by 4 times.
2. Tooth root/alveolar bone tissue sections were obtained and inflammation indices were analyzed using HE staining to assess root resorption, the results are shown in fig. 6.
The HE stained tissue sections of the tooth roots/alveolar bones of rats in the control group and the micro-magnetic acceleration group indicate that after the acceleration treatment of the micro-magnetic acceleration group rats is carried out during the tooth movement period by a micro-magnetic orthodontic accelerator, the periapical tissues and alveolar bone tissues are not obviously damaged and inflammatory infiltrates, and the tooth roots are not absorbed, so that the orthodontic accelerator is biologically safe in the application process.
The weights of the two groups of rats are monitored in the experimental period, the weights of the two groups of rats are not obviously different, and as shown in fig. 7, the micro-magnetic orthodontic accelerator is prompted to have no adverse effect on other physiological functions of the rats and is reliable in safety.
Basic research on periodontal bone reconstruction shows that, in the process of orthodontic tooth movement, due to external force, periodontal soft and hard tissues are subjected to a series of destruction and reconstruction, and the original magnetic field environment of the periodontal tissues in a normal physiological state is changed, so that the periodontal tissues can be inhibited from being metabolized and reconstructed. The micromagnetic orthodontic accelerator generates a static magnetic field through a built-in micromagnet, so that the damage state of a local micromagnet field caused by orthodontic force is corrected, a bionic simulation is carried out on a magnetic field environment suitable for tissue repair and reconstruction, and therefore, soft and hard tissues of periodontal are in an optimal environment beneficial to metabolism, the metabolism of bone tissues is accelerated, the movement of orthodontic teeth is promoted, the negative effect of orthodontic force on tooth roots and alveolar bones is weakened, and the soft and hard tissues of jaw faces are well recovered under the condition of mechanical tension stimulation.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Moreover, those of skill in the art will understand that although some embodiments herein include some features included in other embodiments, not others, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (10)
1. A micromagnetic orthodontic accelerator, comprising:
the magnet mounting part comprises a first magnet mounting part and a second magnet mounting part which are oppositely arranged, a first magnet and a second magnet are respectively arranged in the first magnet mounting part and the second magnet mounting part, and the first magnet and the second magnet are arranged in pairs and are at least one pair;
the connecting part is connected with the same end of the first magnet mounting part and the second magnet mounting part which are oppositely arranged so as to form an accommodating space between the magnet mounting parts and the connecting part;
when the just abnormal accelerator of little magnetism uses, makes the tooth arrange in the accommodation space, first magnet installation department with second magnet installation department is located respectively the both sides of the tooth in the accommodation space, just first magnet with the second magnet with the root of tooth corresponds the setting, can form the micro-magnetic field between mated first magnet and the second magnet and act on the tooth root.
2. The micro-magnetic orthodontic accelerator according to claim 1, wherein the intensity of the micro-magnetic field is 10-30 mT;
preferably, the intensity of the micro magnetic field is 10-20 mT.
3. The micro-magnetic orthodontic accelerator according to claim 1, wherein the magnetic pole directions of the first and second magnets of the pair are arranged in the same direction in the connection direction of the first and second magnets.
4. The micro-magnetic orthodontic accelerator according to claim 1, wherein the magnet mounting portion further comprises a third magnet mounting portion and a fourth magnet mounting portion which are arranged opposite to the first magnet mounting portion and the second magnet mounting portion, the accommodating space comprises a first accommodating space and a second accommodating space which are opposite to each other, the first magnet mounting portion, the second magnet mounting portion and the connecting portion form a first accommodating space, the third magnet mounting portion, the fourth magnet mounting portion and the connecting portion form a second accommodating space, the first accommodating space is used for placing maxillary teeth, and the second accommodating space is used for placing mandibular teeth.
5. The micromagnetic orthodontic accelerator of claim 1 wherein the height of the magnet mount is such as to cover the alveolar bone of the root of the tooth.
6. The micro-magnetic orthodontic accelerator of claim 1, wherein the connecting portion is further provided with a third magnet, and the third magnet forms a micro-magnetic field with the first magnet and the second magnet, respectively.
7. The micro-magnetic orthodontic accelerator of claim 6, further comprising a fixing portion disposed between the first and second magnet mounting portions and connected to the connecting portion.
8. The micro-magnetic orthodontic accelerator of claim 7, wherein the fixing portion is provided with an opening so that the fixing portion forms a fixing ring.
9. The micro-magnetic orthodontic accelerator according to any one of claims 1 to 8, wherein the materials except the magnets of the orthodontic accelerator are medical bio-silica gel.
10. A method for accelerating tooth movement, characterized in that the micro-magnetic orthodontic accelerator according to any one of claims 1 to 9 is used to stimulate the teeth for 20 to 40min per day for 4 to 6 weeks.
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