WO2019152401A1 - Orthodontic appliance - Google Patents

Orthodontic appliance Download PDF

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Publication number
WO2019152401A1
WO2019152401A1 PCT/US2019/015647 US2019015647W WO2019152401A1 WO 2019152401 A1 WO2019152401 A1 WO 2019152401A1 US 2019015647 W US2019015647 W US 2019015647W WO 2019152401 A1 WO2019152401 A1 WO 2019152401A1
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WO
WIPO (PCT)
Prior art keywords
appliance
framework
teeth
tooth
orthodontic
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2019/015647
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English (en)
French (fr)
Inventor
Won Moon
Ehab ABDELBAR
Paul Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP19748281.3A priority Critical patent/EP3745990B1/en
Priority to KR1020207025128A priority patent/KR102507058B1/ko
Priority to BR112020015590-0A priority patent/BR112020015590B1/pt
Priority to JP2020564026A priority patent/JP7504459B2/ja
Priority to CN201980022123.6A priority patent/CN112118801B/zh
Publication of WO2019152401A1 publication Critical patent/WO2019152401A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • A61C7/02—Tools for manipulating or working with an orthodontic appliance
    • 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
    • A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders
    • 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
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0036—Tooth replica
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2201/00—Material properties
    • 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
    • A61C7/002—Orthodontic computer assisted systems

Definitions

  • the present invention generally relates to the field of orthodontics, and in particular to the use of orthodontic tray -type appliances, their positioning within the mouth, and methods of making and using the same.
  • tray aligners which work by placing down a thin polymer-based aligner molded to the shape of the patient's teeth; the aligner will then guide the teeth through applied force to the intended result orchestrated by digital manipulation of these teeth in sequential manner.
  • Invisalign® a polymer-based aligner based on U.S. Patent No. 5,975,893 (Chishti et al.) and other related patents.
  • the advantage of such aligners is that they provide less intrusion in the mouth than traditional braces, allowing for the patient's further comfort in day-to-day tasks such as eating, brushing, and flossing.
  • a weakness of this method is that, by itself, it cannot effectively account for the necessary differential force that must be applied to different teeth for certain tooth movements.
  • Conventional orthodontic methods generally require a designated anchor point to use as a basis from where force is exerted, thus allowing for direct control over the direction and amount of force applied on the teeth.
  • generated force is entirely dependent on reciprocal anchorage, meaning that a group of teeth is pulled, pushed, torqued and rotated against adjacent groups of teeth. As such, some unwanted movement from adjacent teeth (anchor teeth) may be inevitable and should be accounted for during treatment. Additionally, the effectiveness of force application is dependent on the quality of anchor teeth, which may not be adequate for certain tooth movements.
  • an orthodontic framework capable of being placed within the dental arch nearby a tooth or teeth of a patient in combination with an appliance via an attachment for moving the tooth or teeth
  • the framework is less pliable than the appliance such that the framework serves as the anchor of the appliance
  • the appliance is effective to move a tooth or teeth from an initial position to an intermediate position or final position of the tooth or teeth according to a prescription by a treating doctor, and wherein the attachment is via a material forming the appliance in a manner that the framework is capable of exerting a non-reciprocal force upon the appliance and the appliance is capable of exerting a non-reciprocal force upon teeth using the framework as backbone or anchor.
  • the framework is ACTIVE meaning it can exert forces on specific teeth to cause their movement.
  • the framework is capable of being placed on the lingual or labial positions of various distance from the teeth and gum of the patient.
  • the appliance is a polymer-based appliance or an appliance of another type guiding tooth movement through force, wherein the framework serves as a backbone to facilitate an orthodontic treatment prescribed by a treating document to cause the tooth to arrive at the desired result prescribed by the treating doctor.
  • the attachment is through mechanical interlocking, adhesion or chemical bonding.
  • the attachment is a permanent attachment, semi-permanent attachment or removable attachment to cause the tooth to move at a tooth position adjustment prescribed by a treating doctor.
  • the framework is formed from a material of sufficient mechanical strength which is less pliable than the polymer material forming the appliance so as to act as a base for the appliance formed from the more pliable polymer.
  • the appliance is an elastic appliance.
  • an orthodontic tray device comprising an orthodontic framework and an appliance comprising a polymer material, wherein the orthodontic framework is capable of being placed within the dental arch nearby a tooth or teeth of a patient in combination with an appliance via an attachment for moving the tooth or teeth,
  • the framework is less pliable than the appliance such that the framework serves as the anchor of the appliance
  • the appliance is effective to move a tooth or teeth from an initial position to an intermediate position or final position of the tooth or teeth according to a prescription by a treating doctor, and wherein the attachment is via a material forming the appliance in a manner that the framework is capable of exerting a non-reciprocal force upon the appliance and the appliance is capable of exerting a non-reciprocal force upon teeth using the framework as backbone or anchor.
  • the framework is capable of being placed on the lingual or labial positions of various distance from the teeth and gum of the patient.
  • the appliance is a polymer-based appliance or an appliance of another type guiding tooth movement through force, wherein the framework serves as a backbone to facilitate an orthodontic treatment prescribed by a treating document to cause the tooth to arrive at the desired result prescribed by the treating doctor.
  • the attachment is a permanent attachment, semi-permanent attachment or removable attachment to cause the tooth to move at a tooth position adjustment prescribed by a treating doctor.
  • the orthodontic framework is formed from a material of sufficient mechanical strength which is less pliable than the polymer material forming the appliance so as to act as a base for the appliance formed from the more pliable polymer.
  • the appliance is an elastic appliance.
  • the framework comprises two moieties for placing on gum of the patient, one moiety for being placed on the gum inside the dental arch, and the other moiety for being placed on the gum outside the dental arch, both moieties of the framework capable of locking between the teeth or behind the teeth or behind the teeth or behind the teeth.
  • the two moieties join each other at the ends the two moieties, forming a loop, and/or a middle point or middle points, where such joining at a middle point or middle points is(are) between adjacent teeth such that it(they) would not interfere with use of the teeth.
  • the orthodontic framework is capable of being placed within the dental arch nearby a tooth or teeth of a patient in combination with an appliance via an attachment for moving the tooth or teeth
  • the framework is less pliable than the appliance such that the framework serves as the anchor of the appliance, wherein the appliance is effective to move a tooth or teeth from an initial position to an intermediate position or final position of the tooth or teeth according to a prescription by a treating doctor, and
  • the framework is capable of being placed on the lingual or labial positions of various distance from the teeth and gum of the patient.
  • the method further comprising providing the appliance for moving the tooth or teeth.
  • the appliance is a polymer-based appliance or an appliance of another type guiding tooth movement through force, wherein the framework serves as a backbone to facilitate an orthodontic treatment prescribed by a treating document to cause the tooth to arrive at the desired result prescribed by the treating doctor.
  • the attachment is through mechanical interlocking, adhesion or chemical bonding.
  • the attachment is a permanent attachment, semi -permanent attachment or removable attachment to cause the tooth to move at a tooth position adjustment prescribed by a treating doctor.
  • the orthodontic framework is formed from a material of sufficient mechanical strength which is less pliable than the polymer material forming the appliance so as to act as a base for the appliance formed from the more pliable polymer.
  • the appliance is an elastic appliance.
  • the framework is in combination with an appliance via an attachment for moving the tooth or teeth, wherein the framework is less pliable than the appliance such that the framework serves as the anchor of the appliance,
  • the appliance is effective to move a tooth or teeth from an initial position to an intermediate position or final position of the tooth or teeth according to a prescription by a treating doctor, and
  • attachment is via a material forming the appliance in a manner that the framework is capable of exerting a non-reciprocal force upon the appliance and the appliance is capable of exerting a non-reciprocal force upon teeth using the framework as backbone or anchor.
  • the framework is capable of being placed on the lingual or labial positions of various distance from the teeth and gum of the patient.
  • the attachment is through mechanical interlocking, adhesion or chemical bonding.
  • the attachment is a permanent attachment, semi -permanent attachment or removable attachment to cause the tooth to move at a tooth position adjustment prescribed by a treating doctor.
  • the orthodontic framework is formed from a material of sufficient mechanical strength which is less pliable than the polymer material forming the appliance so as to act as a base for the appliance formed from the more pliable polymer.
  • the appliance is an elastic appliance. DESCRIPTION OF THE DRAWINGS
  • Figure I is an image of an embodiment of invention framework locked in between the teeth and on the gum, left ( outside the dental arch): a moiety of invention framework locked on the side of gum outside the dental arch; right (inside the dental arch): another moiety of invention framework locked on the side of gum inside the dental arch, the two moieties joining each other at the ends the two moieties.
  • Figure 2 shows an image of an embodiment of invention framework prior to being placed on the gum and locking between the teeth; left ( outside the dental arch): a moiety of invention framework locked on the side of gum outside the dental arch; right (inside the dental arch): another moiety of invention framework locked on the side of gum inside the dental arch, the two moieties joining each other at the ends the two moieties.
  • Figure 3 is an image of an embodiment of invention framework to be placed on the gum inside the dental arch, the moiety capable of locking between the teeth or behind the teeth or behind the teeth or behind the teeth.
  • Figure 4 is an image of an embodiment of invention framework being placed on the gum inside the dental arch and locked between the teeth.
  • Figure 5 is an image of an embodiment of invention framework to be placed on the gum outside the dental arch, the moiety capable of locking between the teeth or behind the teeth or behind the teeth or behind the teeth.
  • Figure 7 is an image of an embodiment of invention framework where an invention framework is used to expand or constrict the dental arch.
  • Figures 8A-8B illustrate an embodiment of the invention frame.
  • a "tray-type aligner” is defined as a clear tray that covers the teeth and guides one or more of the teeth to move from its/their original position(s) to the final position(s) over a period of time as prescribed by a treating doctor, who is also referred to as an "orthodontic doctor” or an “orthodontist”.
  • anchorage refers to the resistance used to overcome the reaction of an applied force. According to Newton's third law of motion, to every action there is an equal and opposite reaction.
  • the term "reciprocal force” refers to a force applied by an orthodontic anchorage in which the resistance of one or more teeth and their adnexa is used to move one or more opposing teeth and their adnexa; and in this context, such an anchorage is referred to as a “reciprocal anchorage” such as the anchorage used in conventional InvisalignTM aligners.
  • non-reciprocal force refers to a force applied by an orthodontic anchorage of an anchoring point that is independent of a tooth or teeth so as to avoid reciprocity of tooth movement caused by a conventional plastic aligner such as InvisalignTM.
  • a conventional plastic aligner such as InvisalignTM.
  • Such a “non-reciprocal force” can also be referred to as an “independent, non-reciprocal force.”
  • the term "original position" of tooth or teeth refers to the position of the tooth or teeth of the target of treatment prior to the treatment using the appliance of invention; and the term “final position” refers to position of such tooth or teeth at the conclusion time point of an orthodontic treatment course prescribed by a treating doctor; and the term “intermediate position” refers to any position between the original position and the final position of the tooth or teeth of the target of treatment prescribed by a treating doctor.
  • the term "elastic appliance” refers to an orthodontic appliance capable of being stretched to a substantially higher degree than traditional polymer based clear aligners, such as the Invisalign® aligners. Examples of such elastic appliance are described in the co-pending patent application U.S. Provisional Patent Application Serial No. 62/624,281, entitled “Elastic Orthodontic Appliance", filed on January 31, 2018, the teaching of which is incorporated herein in its entirety by reference.
  • a tooth model refers to a conventional or digital tooth model.
  • framework is used interchangeably with the term “backbone”.
  • rigid frameworks can be incorporated into the aligners as a backbone (non-reciprocal anchorage), which in turn will eliminate the above problems associated with the reciprocal anchorage.
  • Such a framework would be placed in strategic locations where the aligner can be attached to, allowing the aligner to apply necessary force on the teeth in the desired direction, at the desired moment, and with the desired amount of force without negatively impacting adjacent teeth, simply by using the framework as a backbone.
  • an orthodontic framework capable of being placed within the dental arch nearby a tooth or teeth of a patient in combination with an appliance via an attachment for moving the tooth or teeth, wherein the attachment is via a material forming the appliance in a manner that the framework is capable of exerting a non-reciprocal force upon the appliance and the appliance is capable of exerting a non-reciprocal force upon teeth using the framework as backbone or anchor,
  • the framework is less pliable than the appliance such that the framework serves as the anchor of the appliance
  • the appliance is effective to move a tooth or teeth from an initial position to an intermediate position or final position of the tooth or teeth according to a prescription by a treating doctor.
  • the framework is capable of being placed on the lingual or labial positions of various distance from the teeth and gum of the patient.
  • the appliance is a polymer-based appliance or an appliance of another type guiding tooth movement through force, wherein the framework serves as a backbone to facilitate an orthodontic treatment prescribed by a treating document to cause the tooth to arrive at the desired result prescribed by the treating doctor.
  • the attachment is through mechanical interlocking, adhesion or chemical bonding.
  • the framework is formed from a material of sufficient mechanical strength which is less pliable than the polymer material forming the appliance so as to act as a base for the appliance formed from the more pliable polymer.
  • the framework itself is of a design capable of being activated to move teeth.
  • the appliance is an elastic appliance.
  • the framework comprises two moieties for placing on gum of the patient, one moiety for being placed on the gum inside the dental arch, and the other moiety for being placed on the gum outside the dental arch, both moieties of the framework capable of locking between the teeth or behind the teeth or behind the teeth or behind the teeth ( Figures 1-2).
  • the two moieties join each other at the ends the two moieties, forming a loop, and/or a middle point or middle points, where such joining at a middle point or middle points is(are) between adjacent teeth such that it(they) would not interfere with use of the teeth ( Figures 1-2).
  • the framework comprises a single moiety for placing on gum of the patient, either inside the dental arch or outside the dental arch, the moiety capable of locking between the teeth or behind the teeth or behind the teeth or behind the teeth ( Figures 3-6).
  • the invention framework serves as independent anchorage, in contrast to reciprocal anchorage used in traditional setups and allows the aligner to apply complex force vectors to a specific tooth, something that is often difficult to achieve with traditional approach.
  • This intricate force applied to teeth on an individual basis is possible by using the framework as a backbone.
  • the framework of invention serving as independent anchorage minimizes the undesirable reciprocal forces among the teeth, which allows for more effective, efficient, and precise tooth movements, and thus, the framework of invention is advantageous over conventional orthodontic devices having no independent anchorage.
  • framework's location as provided here is an example, and the framework itself can be placed in any location such as long as it is attached to the aligner in some way.
  • Figure 1 is an image of an embodiment of invention framework locked in between the teeth and on the gum, left ( outside the dental arch): a moiety of invention framework locked on the side of gum outside the dental arch; right (inside the dental arch): another moiety of invention framework locked on the side of gum inside the dental arch, the two moieties joining each other at the ends the two moieties.
  • Figure 2 shows an image of an embodiment of invention framework prior to being placed on the gum and locking between the teeth; left ( outside the dental arch): a moiety of invention framework locked on the side of gum outside the dental arch; right (inside the dental arch): another moiety of invention framework locked on the side of gum inside the dental arch, the two moieties joining each other at the ends the two moieties.
  • Figure 3 is an image of an embodiment of invention framework to be placed on the gum inside the dental arch, the moiety capable of locking between the teeth or behind the teeth or behind the teeth or behind the teeth.
  • Figure 4 is an image of an embodiment of invention framework being placed on the gum inside the dental arch and locked between the teeth.
  • Figure 5 is an image of an embodiment of invention framework to be placed on the gum outside the dental arch, the moiety capable of locking between the teeth or behind the teeth or behind the teeth or behind the teeth.
  • Figure 6 is an image of an embodiment of invention framework being placed on the gum outside the dental arch and locked between the teeth.
  • Figure 7 is an image of an embodiment of invention framework where an invention framework is used to expand or constrict the dental arch.
  • the framework can be made to have an activated width that is smaller or larger than that of the dental arch.
  • a larger activated width of the invention framework can be applied to the patient or user according to the various embodiments described herein to expand the dental arch of the patient or user.
  • a smaller activated width of the invention framework can be applied to the patient or user according to the various embodiments described herein to constrict the dental arch of the patient or user.
  • the new backbone does not obstruct the ability of the appliance to do its job, and it must also be able to allow for patient comfort. Therefore, the backbone must be placed in some area that will not get in the way of the path of the teeth when biting down, nor may it allow for interference in the forces applied to the teeth.
  • tray aligners and other alternative methods of orthodontics are possible to make tray aligners and other alternative methods of orthodontics and fine-tune them as desired to create effective and expedient results, as well as customize treatment necessities more deeply in order to fit the financial needs of the patient.
  • this can lead to the development of further research revolving around tray-type appliances, allowing for the exploration of more alternative methods of orthodontics, more options for the patient, and more ways to deliver precise results.
  • the appliance itself can be used alongside with a polymer-based appliance like Invisalign® appliances, e.g., those described in general in U.S. Patent Nos. 6,450,807, and 5,975,893, or any other appliance made to guide tooth movement through force, serving as a backbone for the ultimate desired result. It can also be made of any material in itself, provided that it is less pliable than the rest of the appliance by default as it stands as an anchor point.
  • Invisalign® appliances e.g., those described in general in U.S. Patent Nos. 6,450,807, and 5,975,893, or any other appliance made to guide tooth movement through force, serving as a backbone for the ultimate desired result.
  • It can also be made of any material in itself, provided that it is less pliable than the rest of the appliance by default as it stands as an anchor point.
  • attachment refers to attachment of the invention framework to an orthodontic appliance for moving a tooth or teeth, which is achieved in a way that allows the framework of invention to be able to exert sufficient force to the orthodontic appliance so as to allow the framework of invention to serve as anchorage of the appliance.
  • anchorage of the orthodontic appliance, the invention framework and the attachment each must be less flexible than the orthodontic appliance.
  • the term "permanent attachment” refers to attaching a framework of invention to an orthodontic appliance to form a bonding between the invention framework and the appliance, where the bonding is such that it shall remain intact without using a force that will cause structural damage to the framework of invention and/or the appliance.
  • a permanent attachment can be broken by, for example breaking the attachment using a force, for example, cutting (e.g., by scissors, by a knife, or by laser), using a solvent to dissolve the attachment, or sometimes using heat to melt or bum off the attachment.
  • the term "semi -permanent attachment” refers to attaching a framework of invention to an orthodontic appliance to form a bonding between the invention framework and the appliance, where the bonding is such that -
  • removable attachment refers to attaching a framework of invention to an orthodontic appliance by physical means without forming a bonding between the invention framework and the appliance. Such removable attachment shall remain intact using a force at a level of the net value of the force of the invention framework exerting upon the appliance, the aligning force from the appliance exerted upon the attachment, and the force generated from normal use of teeth, e.g., biting with or without food.
  • the attachment can be made through methods including, but not limited to mechanical interlocking, adhesion, or chemical bonding; these methods can be permanent, semi-permanent, or removable, allowing the orthodontist to choose which works best for them based on their production needs or necessity to make large adjustments during treatment.
  • the attachment can also be made of any material, provided it is sturdy enough to act as a base for the more pliable polymer to act on.
  • an orthodontic tray device comprising an orthodontic framework and an appliance comprising a polymer material, wherein the orthodontic framework is capable of being placed within the dental arch nearby a tooth or teeth of a patient for attachment to an appliance for moving the tooth or teeth,
  • attachment is via a material forming the appliance in a manner that the framework is capable of exerting a non-reciprocal force upon the appliance and the appliance is capable of exerting a non-reciprocal force upon teeth using the framework as backbone or anchor,
  • the framework is less pliable than the appliance such that the framework serves as the anchor of the appliance
  • the appliance is effective to move a tooth or teeth from an initial position to an intermediate position or final position of the tooth or teeth according to a prescription by a treating doctor.
  • the framework is capable of being placed on the lingual or labial positions of various distance from the teeth and gum of the patient.
  • the appliance is a polymer-based appliance or an appliance of another type guiding tooth movement through force, wherein the framework serves as a backbone to facilitate an orthodontic treatment prescribed by a treating document to cause the tooth to arrive at the desired result prescribed by the treating doctor.
  • the attachment is through mechanical interlocking, adhesion or chemical bonding.
  • the attachment is a permanent attachment, semi-permanent attachment or removable attachment to cause the tooth to move at a tooth position adjustment prescribed by a treating doctor.
  • the orthodontic framework is formed from a material of sufficient mechanical strength which is less pliable than the polymer material forming the appliance so as to act as a base for the appliance formed from the more pliable polymer.
  • the framework itself is of a design capable of being activated to move teeth.
  • the appliance is an elastic appliance.
  • the orthodontic framework is capable of being placed within the dental arch nearby a tooth or teeth of a patient for attachment to an appliance for moving the tooth or teeth
  • attachment is via a material forming the appliance in a manner that the framework is capable of exerting a non-reciprocal force upon the appliance and the appliance is capable of exerting a non-reciprocal force upon teeth using the framework as backbone or anchor,
  • the framework is less pliable than the appliance such that the framework serves as the anchor of the appliance, and wherein the appliance is effective to move a tooth or teeth from an initial position to an intermediate position or final position of the tooth or teeth according to a prescription by a treating doctor.
  • the framework is capable of being placed on the lingual or labial positions of various distance from the teeth and gum of the patient.
  • the appliance is a polymer-based appliance or an appliance of another type guiding tooth movement through force, wherein the framework serves as a backbone to facilitate an orthodontic treatment prescribed by a treating document to cause the tooth to arrive at the desired result prescribed by the treating doctor.
  • the attachment is through mechanical interlocking, adhesion or chemical bonding.
  • the attachment is a permanent attachment, semi -permanent attachment or removable attachment to cause the tooth to move at a tooth position adjustment prescribed by a treating doctor.
  • the orthodontic framework is formed from a material of sufficient mechanical strength which is less pliable than the polymer material forming the appliance so as to act as a base for the appliance formed from the more pliable polymer.
  • the framework itself is of a design capable of being activated to move teeth.
  • the appliance is an elastic appliance.
  • Methods of computer aided fabrication of orthodontic appliances are well documented in the art. Examples of such methods are described in U.S. Patent Nos.
  • a method of orthodontic treatment comprising:
  • attachment is via a material forming the appliance in a manner that the framework is capable of exerting a non-reciprocal force upon the appliance and the appliance is capable of exerting a non-reciprocal force upon teeth using the framework as backbone or anchor,
  • the framework is less pliable than the appliance such that the framework serves as the anchor of the appliance and
  • the appliance is effective to move a tooth or teeth from an initial position to an intermediate position or final position of the tooth or teeth according to a prescription by a treating doctor.
  • the framework is capable of being placed on the lingual or labial positions of various distance from the teeth and gum of the patient.
  • the appliance is a polymer-based appliance or an appliance of another type guiding tooth movement through force, wherein the framework serves as a backbone to facilitate an orthodontic treatment prescribed by a treating document to cause the tooth to arrive at the desired result prescribed by the treating doctor.
  • the attachment is through mechanical interlocking, adhesion or chemical bonding.
  • the attachment is a permanent attachment, semi -permanent attachment or removable attachment to cause the tooth to move at a tooth position adjustment prescribed by a treating doctor.
  • the orthodontic framework is formed from a material of sufficient mechanical strength which is less pliable than the polymer material forming the appliance so as to act as a base for the appliance formed from the more pliable polymer.
  • the framework itself is of a design capable of being activated to move teeth.
  • the appliance is an elastic appliance.
  • FIGS. 1-7 show various embodiment appliances of invention, which can be readily formed by the methods described herein.
  • Figures 8A-8B illustrate an embodiment of the invention frame.
  • frame 1 is placed on a lower dental arch, with is connected to an orthodontic Appliance 2 via an attachment 3, the dash line denoting attachment 3 being indicative that the way of attachment and place of attachment on the framework and the corresponding place on the appliance are open.
  • Figure 8B shows appliance 2 is placed onto the dental arch and framework 1 and appliance is attached to appliance 2 (attachment 3 not shown).

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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)
PCT/US2019/015647 2018-01-31 2019-01-29 Orthodontic appliance Ceased WO2019152401A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19748281.3A EP3745990B1 (en) 2018-01-31 2019-01-29 Orthodontic appliance
KR1020207025128A KR102507058B1 (ko) 2018-01-31 2019-01-29 치열 교정 장치
BR112020015590-0A BR112020015590B1 (pt) 2018-01-31 2019-01-29 Aparelho ortodôntico
JP2020564026A JP7504459B2 (ja) 2018-01-31 2019-01-29 歯列矯正器具
CN201980022123.6A CN112118801B (zh) 2018-01-31 2019-01-29 正畸矫治器

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201862624319P 2018-01-31 2018-01-31
US62/624,319 2018-01-31
US15/914,935 2018-03-07
US15/914,935 US10485635B2 (en) 2018-01-31 2018-03-07 Orthodontic appliance

Publications (1)

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WO2019152401A1 true WO2019152401A1 (en) 2019-08-08

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US (1) US10485635B2 (https=)
EP (1) EP3745990B1 (https=)
JP (1) JP7504459B2 (https=)
KR (1) KR102507058B1 (https=)
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EP3745990B1 (en) 2024-07-24
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CN112118801A (zh) 2020-12-22
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KR102507058B1 (ko) 2023-03-07
US20190231482A1 (en) 2019-08-01

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