WO2021162170A1 - Dispositif orthodontique lingual - Google Patents

Dispositif orthodontique lingual Download PDF

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Publication number
WO2021162170A1
WO2021162170A1 PCT/KR2020/003889 KR2020003889W WO2021162170A1 WO 2021162170 A1 WO2021162170 A1 WO 2021162170A1 KR 2020003889 W KR2020003889 W KR 2020003889W WO 2021162170 A1 WO2021162170 A1 WO 2021162170A1
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WO
WIPO (PCT)
Prior art keywords
guide plate
teeth
tube
tooth
orthodontic
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Application number
PCT/KR2020/003889
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English (en)
Korean (ko)
Inventor
이노범
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이노범
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of WO2021162170A1 publication Critical patent/WO2021162170A1/fr

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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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A61C7/145—Lingual brackets
    • 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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/20—Arch wires
    • A61C7/22—Tension adjusting means
    • 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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/28—Securing arch wire to bracket
    • A61C7/287—Sliding locks
    • 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

Definitions

  • the present invention relates to a lingual orthodontic appliance, and more particularly, to a lingual orthodontic appliance in which a guide plate is installed in the mouth and orthodontic treatment is performed based on the guide plate.
  • teeth are an important factor in directing personal appearance
  • dentition is known to be an important factor in forming an external image of a person because it affects not only the teeth themselves but also the skeletal structure of the face.
  • the correction of the dentition is considered as an important treatment target in dentistry because it may cause inconvenience not only in the external image but also in the eating habits. For this reason, orthodontic treatment among dental treatments has a long history, and the method or technology has also been remarkably developed.
  • Orthodontics which has been widely operated until recently, attaches one bracket to the outer tooth surface of each tooth constituting the teeth and binds a wire to a fixed structure formed in the bracket, that is, a wire made of a strong material forming an orthodontic arc wire.
  • a labial orthodontic method in which the position or direction of each tooth is gradually corrected over a long period of time by the external physical force of the wire.
  • the exposure of the orthodontic structure on the outer tooth surface of the teeth is inevitable, which has a problem in that it may reduce the aesthetic sense.
  • the labial orthodontic method has difficulties in causing inconvenience until the correction is completed.
  • a bracket is attached to the inner side of the tooth, that is, on the lingual tooth surface in the oral cavity, and a wire is attached thereto, so that the desired orthodontic treatment can be performed by the external force of the wire.
  • the procedure is widespread.
  • a typical lingual orthodontic device ligates a bracket 1 attached to the lingual side of the tooth and various arch wires 2 thereto, as shown in FIG. move to hostile
  • This lingual orthodontic device is a good alternative for patients who avoid exposure to the device during treatment because the device itself is not exposed to the outside.
  • lingual orthodontic surgery is a relatively difficult treatment that cannot be performed unless the entire treatment process is an orthodontist.
  • the treatment results vary greatly depending on the skill of the treating doctor.
  • an example of a structure for lingual orthodontic treatment recently introduced in the United States is composed of a bracket 10, a main bar 20, and an elastic spring 30, as shown in FIG. Attempts have been made to induce lingual orthodontic treatment.
  • the bracket 10 is attached and fixed to the inner tooth surface of the tooth, respectively, and the main bar 20 is fixed along the lingual side of the tooth.
  • the elastic spring 30 is connected between the main bar 20 and the bracket 10, and as the teeth are pulled or pushed for a long time by the elastic force of the elastic spring 30 and are held in place, the teeth can be evenly corrected. have.
  • the conventional lingual orthodontic device described above is a method of moving teeth to a preset position using the expansion and contraction action of the elastic spring 30, but only the shape and length of the elastic spring 30 are three-dimensionally ideal tooth position.
  • There is a limit to setting and moving and there is also a problem in durability because the entire device must be replaced when some of the elastic springs 30 are broken.
  • giving three-dimensional tooth movement including the final tooth position by relying only on the elastic spring 30 causes fatigue of the elastic spring 30 metal during long-term use in the oral cavity, which implies uncertainty in the treatment itself. will be.
  • this device has a problem in that it is not easy to design how much physical force will be applied to each tooth, and there is a limit in achieving an ideal tooth arrangement using only the action of an elastic spring.
  • the main bar having an ideal tooth shape and attached to it without using the existing complicated design of the lingual elastic spring or bracket, the final target point of tooth movement, that is, the vertical position, horizontal position, and apical axis If a guide plate that induces all three-dimensional tooth movement, including inclination, is installed to induce tooth movement, it will be possible to move teeth more efficiently and intuitively than the tooth movement caused by only the elastic spring of the conventional lingual orthodontic device. .
  • the present invention replaces the expensive ready-made lingual bracket necessary for existing lingual correction and provides a device corresponding to the anatomical shape of each patient's individual teeth and the shape of the dental arch to improve the safety and completeness of treatment and the skill of the operator. deviation can be reduced.
  • the present invention has been devised to solve the above problems, and an object of the present invention is to cast a main bar, a guide plate, and an accessory device corresponding to the patient's teeth set in advance after 3D printing, and as a reference point for the ideal tooth position for the operator.
  • an object of the present invention is to cast a main bar, a guide plate, and an accessory device corresponding to the patient's teeth set in advance after 3D printing, and as a reference point for the ideal tooth position for the operator.
  • the present invention in order to achieve the above object, is fixed to the inner tooth surface of each tooth, the hollow tooth tube through both sides in the direction of the teeth; a plurality of guide plates corresponding to the teeth to be orthodontic, each having a central hole penetrating forward and backward, and a side tube provided on both sides of the central hole and having side holes formed in the direction of the teeth; a main bar connected between the plurality of guide plates and fixed to the molars to fix the guide plate in the mouth; and an elastic material having tension to pull a plurality of teeth toward the guide plate while going out to the central hole through one side tube of the guide plate, passing through the dental tube, and exiting through the other side tube of the guide plate:
  • the orthodontic appliance provides a lingual orthodontic device, characterized in that the orthodontic tooth is orthodontized by being in close contact with the guide plate by the tension of the elastic material.
  • the side tube of the guide plate is more protruded to the outside of the guide plate than the dental tube, it is preferable that a step is formed between the dental tube and the side tube.
  • both ends of the elastic material are fixed to the molars of the patient through a sliding system so that the tension pulling the dental tube can be maintained.
  • the sliding system fixed to the molars, both sides of the hollow body through; a slider that is installed to slide on both sides of the body from the inside of the body and has an elastic material fixed to one end thereof; and a spring fixedly installed between one end of the slider and an end of the body.
  • connectors extending toward the center of the palate are further formed at both ends of the main bar, and it is preferable that the connector is fixed to the palatal side with an orthodontic implant to distribute the fixing force acting on the molars.
  • the lingual orthodontic device according to the present invention has the following effects.
  • the present invention provides a guide plate serving as a standard for orthodontic treatment, and allows teeth to be orthodontized by gradually bringing into contact with the guide plate by the pulling force of an elastic material. As described above, the present invention has the effect of increasing the efficiency of orthodontic treatment by providing a guide plate serving as the final target point of three-dimensional tooth movement.
  • the present invention sets the most ideal tooth tilt, anterior-posterior position, vertical position, etc. suitable for the patient's individual malocclusion characteristics using a setup program after 3D scanning of the patient's oral cavity to select the most suitable dental arch for each patient. set At this time, the present invention provides the guide plate and main bar with the most ideal treatment goal for each patient through this information using a 3D printer, so that all teeth can be guided and arranged with the most ideally designed main bar and guide plate. It has the effect of providing the most suitable dental arch shape for all patients regardless of the operator's skill level.
  • the present invention can minimize frictional resistance against all tooth movement during orthodontic treatment, there is an effect that can perform orthodontic treatment quickly and accurately compared to conventional orthodontic treatment.
  • the present invention is characterized in that it does not require a ready-made bracket and a ready-made arch wire, which are essential devices for all existing orthodontic devices. Because the existing ready-made bracket simply applied only the average value without considering the anatomical characteristics of individual teeth, it is necessary to adjust individual arch wires to obtain precise treatment results considering the anatomical characteristics of the patient's teeth.
  • the ready-made arch wire is not suitable for individual patient cases by using only 3 or 4 types of arch wires that imitate the average dental shape, but the present invention considers the anatomical shape of individual patient teeth.
  • the present invention does not maintain the result after treatment in the form of a ready-made arch line, but can maintain the patient's original dental arch form even after treatment, so it can provide the most important elements of preventing recurrence after treatment and maintaining the treatment result.
  • the present invention has the effect of adding orthodontic force to move teeth by simply adding an elastic material in front of the first molar, and additionally adding an elastic spring below the first molar.
  • This additional corrective power has the effect of reducing the number of patient visits. Since the present invention can individually move teeth for all teeth, the treatment period can also be reduced compared to the existing lingual or labial orthodontic devices.
  • FIGS. 1A and 1B are photographs showing a lingual orthodontic appliance according to the prior art.
  • Figure 2a is a perspective view showing a lingual orthodontic appliance according to a preferred embodiment of the present invention.
  • Figure 2b is a front view showing a straight line unfolded lingual orthodontic device according to a preferred embodiment of the present invention.
  • FIG. 3 is an enlarged view showing part “A” of FIG. 2 .
  • FIG. 4 is a view showing a dental dentition installed with a lingual orthodontic appliance according to a preferred embodiment of the present invention.
  • FIG. 5 is an enlarged view showing part "B" of FIG. 4 .
  • FIG. 6 is an enlarged view showing part "C" of FIG. 4 .
  • FIG. 7A to 7C are views illustrating a process of orthodontic treatment performed through the lingual orthodontic device according to a preferred embodiment of the present invention.
  • 8A and 8B are diagrams of a sliding system showing an enlarged portion "C" of FIG. 4, showing the operation of the sliding system.
  • FIGS. 2A to 8B a lingual orthodontic apparatus according to a preferred embodiment of the present invention will be described with reference to the accompanying FIGS. 2A to 8B.
  • the lingual orthodontic appliance acquires a three-dimensional image with a 3D scanner, sets up a dentition suitable for the patient's oral structure using Autolign (commercially available setup program), etc. It served as a reference point for orthodontic treatment. As such, the lingual orthodontic device provides a reference point through the guide plate and then pulls the teeth to straighten the teeth until they reach the guide plate. There are features that can be achieved.
  • the lingual orthodontic device includes a dental tube 100, a main bar 200, a guide plate 300, an elastic material 400, and an elastic material that can be added during treatment. It includes a sliding system (500).
  • the tooth tube 100 attached to the lingual side of the tooth is a medium for the elastic material 400 to pull the tooth toward the guide plate, and is fixed to the inner lingual surface of the tooth.
  • the dental tube 100 forms a through hole 110 through which both sides are penetrated at the tip.
  • the fixing direction of the dental tube 100 is such that the through hole 110 portion faces the guide plate 300, and both sides of the dental tube 100 preferably form an inclined inclined surface.
  • This dental tube 100 is similar to the pyramid shape.
  • the inclined surface of the dental tube 100 corresponds to the inclined surface of the guide plate 300 to be described later to induce accurate tooth movement.
  • the material of the dental tube 100 is not particularly limited, and is fixed to the teeth through bonding.
  • the main bar 200 fixes each guide plate 300 , and the overall shape is provided in the form of an arch that reproduces the original dental arch shape possessed by the patient.
  • the guide plate 300 is provided in plurality, and the main bar 200 is connected between the guide plates 300 and then fixed to the molars to fix the guide plate 300 in the mouth.
  • the main bar 200 is preferably cast with metal after 3D printing with castable resin, but 3D printing or metal 3D printing is possible using reinforced resin according to the development of materials or 3D printing in the future. .
  • Both ends of the main bar 200 are preferably fixed to the first molars (molars) as shown in FIG.
  • a connector 210 is further formed on the main bar 200 as shown in FIG. 2 .
  • the connector 210 faces the center of the palate, and a fixing hole 211 is provided at the distal end to form a structure to which an orthodontic implant can be applied. That is, when the main bar 200 is fixed only to the molars, the force acts only on the molars for a long time during orthodontic treatment, which may cause unnecessary movement of the molars, so the connector 210 and the orthodontic implants act on the molars. By distributing the force, stability can be added to the entire device.
  • the connector 210 of the main bar 200 is integrally formed with the main bar 200 .
  • the guide plate 300 (Guide plate) is a configuration that serves as a reference for orthodontic treatment, and is provided in plurality along the main bar 200 .
  • the guide plate 300 corresponds to the number of teeth of the patient, and the position of the guide plate 300 also corresponds to each tooth. Orthodontics applies physical force to the teeth for a long time so that protruding or misaligned teeth are placed in the correct position.
  • the present invention is to guide the position of the teeth through the guide plate 300, thereby reducing the deviation of treatment according to the skill of the operator and allowing the orthodontic treatment to be performed with a high degree of perfection.
  • the position of the guide plate 300 makes the most ideal virtual tooth arrangement with a setup program such as Autolign (a trade name of a commercially available sepup program) and positions the guide plate 300 according to this arrangement.
  • a setup program such as Autolign (a trade name of a commercially available sepup program) and positions the guide plate 300 according to this arrangement.
  • Each guide plate 300 is connected to the main bar 200, and the shape of the main bar 200 made at this time represents an ideal dental arch shape after treatment.
  • Each guide plate 300 is manufactured to fit the anatomical shape of every individual patient's teeth through a 3D scanner and 3D printer.
  • the front surface of the guide plate 300 is formed to exactly correspond to the anatomical shape of the palatal or lingual side of individual teeth as shown in FIG. 3 .
  • the guide plate 300 includes a central hole 310 penetrating forward and backward in the drawing, and a side tube 320 formed on a side surface of the guide plate 300 .
  • the central hole 310 of the guide plate 300 is a hole provided in the center of the guide plate 300, and in order to accurately seat the inclined surface of the pyramidal dental tube 100 attached to the lingual side of the tooth,
  • the inner surface of the 310 also forms an inclined surface corresponding to the inclined surface of the pyramid-shaped dental tube 100 as shown in FIG. 3 .
  • This structural form is a structure that can more accurately guide the pyramid-shaped dental tube 100 fixed to the lingual side of the tooth in the process of pulling the tooth and bringing it into close contact with the guide plate 300 .
  • the side tube 320 of the guide plate 300 is configured to pass in and out of an elastic material 400 to be described later, and is formed to protrude from both sides of the guide plate 300 to one side.
  • the side tube 320 is formed to protrude more than the rear end position of the dental tube 100 . Accordingly, a step occurs between the rear end of the side tube 320 and the rear end of the dental tube 100, the through hole 110 formed in the dental tube 100 and the side hole 321 formed in the side tube 320. There is also a step difference between each other. This step serves to make the elastic material 400 more perfectly closely contact the pyramidal tooth tube 100 and the guide plate 300 .
  • the guide plate 300 is designed to perfectly correspond to the anatomical shape of the patient's teeth, as well as to include a vertical position, a horizontal position, and an axial inclination to finally reach the treatment target point of the tooth. Meanwhile, the guide plate 300 is preferably provided in different sizes, as shown in FIG.
  • the guide plate 300 is also preferably provided in different sizes, and each guide plate 300 is preferably provided in a ratio of a size corresponding to each tooth.
  • the material of the guide plate 300 is not particularly limited, and may be provided with a material having elasticity.
  • the elastic material 400 provides an orthodontic force to move the teeth, and is fixed to both side first molars while passing through both side tubes 320 and pyramidal tooth tubes 100 of all guide plates 300 alternately. As shown in FIG. 3 , the elastic material 400 is introduced through one side tube 320 of the guide plate 300 and then exits into the central hole 310 of the pyramidal tooth tube 100 fixed to the tooth. It passes through the inside and exits to the other side tube 320 of the guide plate 300 through the central hole 310 again. When the elastic material 400 is bound to have elasticity on both sides of the first molars through such a series of processes, an orthodontic force to move the teeth is generated, which gradually brings the teeth into close contact with the guide plate 300 .
  • the material of the elastic material 400 may be any material having elasticity, and the thickness of the elastic material 400 may be selected from ready-made products suitable for the patient's situation.
  • the sliding system 500 maintains the tension of the elastic material 400 and has a structure capable of adding an elastic spring to the lower side. As shown in FIGS. 4 and 8A , the sliding system 500 is fixed to the molars and the elastic material 400 is fixed to a ring provided on the front surface of the slider of the sliding system 500 . The sliding system 500 may be fixed to the first molars through bonding.
  • the sliding system 500 includes a body 510 , a slider 520 , and a spring 530 .
  • the body 510 is fixed to the molars, and consists of a hollow tube body having both sides penetrated in the direction of the teeth.
  • the body 510 is configured to be fixed to the molars, and has a hollow cylindrical shape through which both sides are penetrated in the direction of the teeth.
  • a fixing hook 511 is installed at the rear end of the body 510 .
  • the fixing hook 511 is configured to fix one end of the spring 530 .
  • the slider 520 is positioned inside the body 510 and is provided to slide to both sides inside the body 510 .
  • the length of the slider 520 is preferably longer than the length of the body 510 , and is formed to have an outer diameter smaller than the inner diameter of the body 510 .
  • a horizontal ring 521 protruding in the longitudinal direction of the front surface of the slider 520 is installed on the slider 520 .
  • the horizontal ring 521 is configured to fix the elastic material 400 .
  • a vertical ring 522 is installed in the vertical lower portion of the slider 520 .
  • the vertical ring 522 is configured to fix the spring 530 together with the fixing hook 511 .
  • the spring 530 assists the tension of the elastic material 400 , and is installed between the fixing hook 511 and the vertical ring 522 . With this configuration, the spring 530 can be expanded and contracted according to the movement of the slider 520 in a state where it is fixed with respect to the fixing hook 511 .
  • the operator After confirming the oral structure and dental condition of the patient through the 3D scanner, the operator sets the optimal treatment goal using a setup program in consideration of the anatomical shape of the patient's teeth and the shape of the dental arch. Then, according to the set ideal tooth arrangement, the main bar 200, the guide plate 300, and the sliding system 500 are cast by printing metal through a 3D printer or outputting a resin for casting.
  • the operator fixes the pyramidal dental tube 100 to the lingual side of each tooth as shown in FIG. 4 . Thereafter, the operator fixes both ends of the main bar 200 on which the guide plate 300 and the sliding system 500 are installed to the patient's first molars. At this time, the operator additionally fixes the connector 210 of the main bar 200 using an orthodontic implant as shown in FIG. 6 . At this time, the main bar 200 including the pyramid-shaped dental tube 100 and the guide plate 300 and the sliding system 500 attached to the lingual side of the tooth is attached to the tooth by indirect attachment to be fixed at the correct position. It is provided in the form of a jig so that the operator can easily attach it to the correct position.
  • the main bar 200 fixed in the oral cavity is provided with an orthodontic implant installed in the connector 210, thereby finally adding stability to the orthodontic device.
  • the operator completes the installation of the lingual orthodontic device as shown in FIG. 4 through the above series of processes.
  • the operator penetrates the elastic material 400 through the pyramidal tooth tube 100 of all teeth and the side tube 320 of the guide plate 300, and then the sliding system fixed to the first molar ( The elastic material 400 is bound to the horizontal ring 521 of the slider 520 of the 500).
  • a corrective force may be added by adding a spring 530 between the fixing hook 511 and the vertical hook 522 provided below the body 510 .
  • the initial state in which the orthodontic device is installed is a state in which the distance between the teeth and the guide plate 300 is irregular, as shown in FIG. 7A , and the elastic material 400 continuously acts to pull the teeth. Thereafter, as time passes, the teeth move as shown in FIG. 7B by the pulling force of the elastic material 400 to be in close contact with the guide plate 300 . At this time, the teeth continuously generate orthodontic force by the action of the elastic material 400 fixed to the sliding system 500 and the spring 530 added to the lower side of the sliding system 500, as shown in FIGS. 7b and 7c. As the teeth spaced apart from the guide plate 300 are gradually in close contact with the guide plate 300, the correction of the teeth proceeds. That is, the present invention induces individual tooth movement without frictional resistance in the initial stage to move the teeth quickly and efficiently.
  • the lingual orthodontic device provides a guide plate 300 that guides the orthodontic position as a reference point in the patient's mouth, thereby increasing the efficiency of orthodontic treatment and reducing frictional resistance to shorten the treatment period. It is possible to reduce the deviation of treatment results according to the effect and the skill of the operator.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne un dispositif orthodontique lingual. L'invention concerne un dispositif orthodontique lingual caractérisé en ce qu'il comprend : des tubes de dent creux, dont chacun est fixé à la surface de dent interne d'une dent et perforé des deux côtés dans la direction d'agencement de dents; une pluralité de plaques de guidage qui correspondent aux dents respectives à traiter par orthodontie, et dont chacune comprend un trou central passant de l'avant vers l'arrière, et des tubes latéraux disposés sur des côtés respectifs du trou central et ayant des trous traversants dans la direction d'agencement de dents; une barre principale reliée entre la pluralité de plaques de guidage et fixée aux molaires afin de fixer les plaques de guidage à l'intérieur de la bouche; et un matériau élastique ayant une tension, le matériau élastique sortant du trou central par le tube latéral sur un côté de la plaque de guidage, et tirant une pluralité de dents vers les plaques de guidage tout en sortant à travers le tube latéral de l'autre côté de la plaque de guidage en passant à travers le tube de dent. Un traitement orthodontique peut être effectué en pressant les dents à traiter par orthodontie contre les plaques de guidage au moyen de la tension du matériau élastique.
PCT/KR2020/003889 2020-02-11 2020-03-20 Dispositif orthodontique lingual WO2021162170A1 (fr)

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KR102087727B1 (ko) * 2020-02-11 2020-03-12 이노범 설측 치아교정 장치
KR102178090B1 (ko) 2020-06-08 2020-11-12 김창환 치아교정용 호선을 겸비한 지그 일체형 교정구

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KR101723674B1 (ko) * 2016-12-09 2017-04-05 정유미 설측 교정 시스템
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KR20150134632A (ko) * 2014-05-22 2015-12-02 조선대학교산학협력단 치열 교정용 브라켓
KR101578708B1 (ko) * 2014-05-22 2015-12-18 조선대학교산학협력단 치열 교정용 브라켓
KR101804990B1 (ko) * 2016-01-04 2017-12-06 권순용 치과 교정시술용 덴탈 브라켓 및 이를 이용한 치아교정장치

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US20020187453A1 (en) * 1998-05-15 2002-12-12 William J. Clark Force generating device useful in orthodontic appliances
US20110027743A1 (en) * 2008-04-09 2011-02-03 Cinader Jr David K Lingual Orthodontic Appliance with Removable Section
JP2014516746A (ja) * 2011-06-23 2014-07-17 クワンチョウ リトン バイオマテリアル カンパニー リミテッド アップライティング機能付き特注歯科矯正器具
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