US20110269092A1 - Reinforced aligner hooks - Google Patents

Reinforced aligner hooks Download PDF

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Publication number
US20110269092A1
US20110269092A1 US12/772,130 US77213010A US2011269092A1 US 20110269092 A1 US20110269092 A1 US 20110269092A1 US 77213010 A US77213010 A US 77213010A US 2011269092 A1 US2011269092 A1 US 2011269092A1
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Prior art keywords
hook
appliance
elastic member
teeth
patient
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Abandoned
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US12/772,130
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Eric Kuo
Artem Borovinskih
Shiva Sambu
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Align Technology Inc
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Align Technology Inc
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Priority to US12/772,130 priority Critical patent/US20110269092A1/en
Assigned to ALIGN TECHNOLOGY, INC. reassignment ALIGN TECHNOLOGY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAMBU, SHIVA, BOROVINSKIH, ARTEM, KUO, ERIC
Publication of US20110269092A1 publication Critical patent/US20110269092A1/en
Application status is Abandoned legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/002Orthodontic computer assisted systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/08Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00Data acquisition or data processing for additive manufacturing
    • B33Y50/02Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/50Computer-aided design
    • G06F17/5009Computer-aided design using simulation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • A61C9/004Means or methods for taking digitized impressions
    • A61C9/0046Data acquisition means or methods

Abstract

Orthodontic positioning devices, and related methods and systems, are disclosed for use with one or more orthodontic elastic members. The disclosed devices are configured to couple with an orthodontic elastic member so as to react a force from the elastic member into the appliance to, for example, generate traction forces on the patient's teeth to produce a desired occlusion. A positioning device includes a patient removable tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to a patient's teeth. The appliance includes a hook configured to interface with an orthodontic elastic member. The hook can be configured to be offset from a surface of a tooth when the appliance is coupled with the patient's teeth and no elastic member is coupled with the tooth. The hook can be curved so that the hook is more retentive on the aligner. The hook can be reinforced so that the reinforcement resists deformation when the elastic is in place.

Description

    BACKGROUND
  • The present invention relates generally to the field of orthodontics, and more particularly to dental positioning appliances configured to interface with an orthodontic elastic member and react a force from the elastic member into the appliance.
  • An objective of orthodontics is to move a patient's teeth to positions where function and/or aesthetics are optimized. Traditionally, appliances such as braces are applied to a patient's teeth by a treating practitioner and the set of braces exerts continual force on the teeth and gradually urges them toward their intended positions. Over time and with a series of clinical visits and adjustments to the braces, the practitioner adjusts the appliances to move the teeth toward their final destination.
  • More recently, alternatives to conventional orthodontic treatment with traditional affixed appliances (e.g., braces) have become available. For example, systems including a series of preformed appliances/aligners have become commercially available from Align Technology, Inc., Santa Clara, Calif., under the tradename Invisalign® System. The Invisalign® System is described in numerous patents and patent applications assigned to Align Technology, Inc. including, for example in U.S. Pat. Nos. 6,450,807, and 5,975,893, as well as on the company's website, which is accessible on the World Wide Web (see, e.g., the url “www.invisalign.com”). The Invisalign® System includes designing and/or fabricating multiple, and sometimes all, of the aligners to be worn by the patient before the aligners are administered to the patient and used to reposition the teeth (e.g., at the outset of treatment). Often, designing and planning a customized treatment for a patient makes use of computer-based 3-dimensional planning/design tools, such as Treat™ software from Align Technology, Inc. The design of the aligners can rely on computer modeling of a series of planned successive tooth arrangements, and the individual aligners are designed to be worn over the teeth and elastically reposition the teeth to each of the planned tooth arrangements.
  • While recently developed orthodontic treatment technologies, such as those described above, represent a considerable advancement in the field of orthodontics, additional advancements remain of interest. For example, in some instances it may be advantageous to use an orthodontic elastic member to generate a tension force between a patient's upper and lower teeth to bring the teeth into a desired occlusion. In some traditional approaches, brackets are bonded to the teeth and an orthodontic elastic member is used to couple the brackets to generate the tension force. Generating such a tension force in conjunction with recently developed orthodontic approaches can be challenging. For example, shell aligners are generally designed to match the geometry of a patient's teeth, thereby leaving little room for bonding such brackets to a patient's teeth. As such, there is a need for shell aligners that can be used in conjunction with an orthodontic elastic member to, for example, bring a patient's teeth into a desired occlusion.
  • BRIEF SUMMARY
  • The present disclosure provides orthodontic positioning appliances for use with an orthodontic elastic member, and related systems and methods. The disclosed positioning appliances are configured to couple with an orthodontic elastic member so as to react a force from the elastic member into the appliance. Such appliances can advantageously employ the force imparted by the elastic member to apply desired repositioning forces to a patient's teeth to, for example, generate a desired occlusion and/or supplement repositioning forces generated by the appliance.
  • For a fuller understanding of the nature and advantages of the present invention, reference should be made to the ensuing detailed description and accompanying drawings. Other aspects, objects and advantages of the invention will be apparent from the drawings and detailed description that follows.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 illustrates a jaw and an incremental positioning appliance for the jaw, in accordance to an embodiment.
  • FIG. 2A illustrates upper and lower teeth received within incremental tooth positioning appliances having gingivally disposed hooks, in accordance to an embodiment.
  • FIG. 2B illustrates upper and lower teeth received within incremental tooth positioning appliances having gingivally disposed hooks, wherein the hooks are configured to angle or curve more toward a tooth's surface, in accordance with an embodiment.
  • FIG. 3A illustrates teeth received within teeth receiving cavities of an incremental tooth positioning appliance and an orthodontic elastic member coupled with the positioning appliance. The appliance includes notches or hooks cut or formed into a tooth receiving cavity of the appliance.
  • FIG. 3B is a cross-sectional view of a tooth and the positioning appliance of FIG. 3A illustrating hook displacement induced by the orthodontic elastic member.
  • FIG. 4A is a cross-sectional view of an incremental tooth positioning appliance having an offset hook, in accordance with an embodiment of the present invention.
  • FIG. 4B illustrates a tooth received within a tooth receiving cavity of the incremental tooth positioning appliance of FIG. 4A and an orthodontic elastic member coupled with the offset hook, in accordance with an embodiment of the present invention.
  • FIG. 4C illustrates a reinforced version of the offset hook of FIG. 4A, in accordance with an embodiment of the present invention.
  • FIG. 5 illustrates a tooth received within a tooth receiving cavity of an incremental tooth positioning appliance having a gingivally disposed offset hook and an orthodontic elastic member coupled with the gingivally disposed hook, in accordance with an embodiment of the present invention.
  • FIG. 6 illustrates a reinforced version of the gingivally disposed hook of FIG. 5, in accordance with an embodiment of the present invention.
  • FIG. 7 illustrates a tooth received within a tooth receiving cavity of an incremental tooth positioning appliance having a gingivally disposed offset hook and an orthodontic elastic member coupled with the gingivally disposed hook, in accordance with an embodiment of the present invention.
  • FIG. 8A illustrates teeth received within teeth receiving cavity of an incremental tooth positioning appliance having an exterior hook and an orthodontic elastic member coupled with the exterior hook, in accordance with an embodiment of the present invention.
  • FIG. 8B is a cross-sectional view of a tooth and the positioning appliance of FIG. 8A illustrating the orthodontic elastic member coupled with the exterior hook, in accordance with an embodiment of the present invention.
  • FIG. 9A illustrates teeth received within teeth receiving cavities of an incremental tooth positioning appliance having a gingivally disposed exterior hook and an orthodontic elastic member coupled with the gingivally disposed exterior hook, in accordance with an embodiment of the present invention.
  • FIG. 9B is a cross-sectional view of a tooth and the positioning appliance of FIG. 9A illustrating the orthodontic elastic member coupled with the gingivally disposed exterior hook, in accordance with an embodiment of the present invention.
  • FIG. 10 illustrates an incremental tooth positioning appliance having a reinforcing corrugation and an exterior hook coupled with an orthodontic elastic member, in accordance with an embodiment of the present invention.
  • FIG. 11 is a simplified block diagram illustrating a method for fabricating an aligner having an exterior hook using a mold, in accordance with an embodiment of the present invention.
  • FIGS. 12A and 12B illustrate the addition of a witness object to mold geometry used to generate an appliance having an offset hook, in accordance with an embodiment of the present invention.
  • FIG. 13 is a simplified block diagram illustrating a method for direct fabrication of an aligner having an exterior hook, in accordance with an embodiment of the present invention.
  • FIG. 14 diagrammatically illustrates a fabrication system in accordance with an embodiment of the present invention.
  • DETAILED DESCRIPTION
  • In the following description, various embodiments of the present invention will be described. For purposes of explanation, specific configurations and details are set forth in order to provide a thorough understanding of the embodiments. However, it will also be apparent to one skilled in the art that the present invention may be practiced without the specific details. Furthermore, well-known features may be omitted or simplified in order not to obscure the embodiment being described.
  • Orthodontic positioning appliances are provided that can be used in conjunction with one or more orthodontic elastic members, as well as related methods and systems. During orthodontic treatment, it may be necessary to apply forces to a tooth to generate movement of the tooth to, for example, bring the patient's teeth into a better occlusion. The presently disclosed appliances, methods, and systems provide means by which such forces can be applied during orthodontic treatment where appliances having teeth receiving cavities are used, such as preformed appliances/aligners available from Align Technology, Inc., Santa Clara, Calif., under the tradename Invisalign® System.
  • The disclosed orthodontic positioning appliances for use with an orthodontic elastic member include, for example, a patient removable tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to a patient's teeth. The positioning appliance can include a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn appliance, thereby applying (e.g., supplementing) forces other than or in addition to the forces applied to the patient's teeth and generated solely by the positioning appliance(s) in the absence of the coupled elastic member. The appliance and/or hook thereof can be configured to more optimally engage an elastic member when the appliance is worn by the patient. In one embodiment, for example, the hook can be configured to be laterally offset from another portion of the appliance, such as a portion of the appliance that engages the patients teeth when worn. For example, a hook can be offset (e.g., laterally offset) from a portion of the appliance that engages a buccal surface of a tooth when the appliance is coupled with the patient's teeth. In such an embodiment, the hook will be offset even when no orthodontic elastic member is coupled with the tooth.
  • In another embodiment, an appliance can be configured such that the hook is gingivally offset from a portion of the appliance. For example, certain shell-type appliances will include a gingival edge or edge of the appliance that, when worn by a patient, is disposed substantially along the gingival line or margin where gingival tissue meets the tooth crown at the base of the tooth. In certain embodiments, a hook of an appliance will be gingivally offset or offset in a gingival direction relative to the gingival edge of the appliance. Such a configuration advantageously allows incorporation of the hook into the appliance structure, but without necessarily reducing tooth receiving/engaging surfaces of an appliance cavity.
  • An appliance can include a reinforcement structure selected and/or disposed on the appliance so as to stiffen the appliance against lateral deflection induced by the force from the elastic member. For example, a portion of the appliance can include a corrugation to stiffen the appliance. In another embodiment, the appliance can include a locally stiffened area (e.g., via an added shape or contour) connected with the hook to stiffen the hook against deflection (e.g., lateral deflection) induced by the force from the elastic member.
  • Referring now to the drawings, in which like reference numerals represent like parts throughout the several views, FIG. 1 provides an appropriate starting point in a discussion of the present invention with respect to tooth repositioning appliances designed to apply repositioning forces to teeth. A tooth repositioning appliance 10 can be worn by a patient in order to achieve an incremental repositioning of individual teeth in the jaw 11. The appliance can include a shell (e.g., polymeric shell) having teeth-receiving cavities that receive and resiliently reposition the teeth. In many embodiments, a polymeric appliance can be formed from a thin sheet of suitable elastomeric polymeric material, such a 0.03 inch thermal forming dental material by Tru-Tain Plastics, Rochester, Minn. An appliance can fit over all teeth present in an upper or lower jaw, or less than all of the teeth. In some cases, only certain teeth received by an appliance will be repositioned by the appliance while other teeth can provide a base or anchor region for holding the appliance in place as it applies force against the tooth or teeth targeted for repositioning. In some cases, many or most, and even all, of the teeth will be repositioned at some point during treatment. Teeth that are moved can also serve as a base or anchor for holding the appliance as it is worn by the patient. Typically, no wires or other means will be provided for holding an appliance in place over the teeth. In some cases, however, it may be desirable or necessary to provide individual anchors on teeth with corresponding receptacles or apertures in the appliance so that the appliance can apply a selected force on the tooth. Exemplary appliances, including those utilized in the Invisalign® System, are described in numerous patents and patent applications assigned to Align Technology, Inc. including, for example in U.S. Pat. Nos. 6,450,807, and 5,975,893, as well as on the company's website, which is accessible on the World Wide Web (see, e.g., the url “www.invisalign.com”).
  • An appliance can be designed and/or provided as part of a set or plurality of appliances. In such an embodiment, each appliance may be configured so a tooth-receiving cavity has a geometry corresponding to an intermediate or final tooth arrangement intended for the appliance. The patient's teeth can be progressively repositioned from an initial tooth arrangement to a target tooth arrangement by placing a series of incremental position adjustment appliances over the patient's teeth. A target tooth arrangement can be a planned final tooth arrangement selected for the patient's teeth at the end of all planned orthodontic treatment. Alternatively, a target arrangement can be one of many intermediate arrangements for the patient's teeth during the course of orthodontic treatment, which may include where surgery is recommended, where inter-proximal reduction (IPR) is appropriate, where a progress check is scheduled, where anchor placement is best, where palatal expansion is desirable, etc. As such, it is understood that a target tooth arrangement can be any planned resulting arrangement for the patient's teeth that follows one or more incremental repositioning stages. Likewise, an initial tooth arrangement can be any initial arrangement for the patient's teeth that is followed by one or more incremental repositioning stages. The adjustment appliances can be generated all at the same stage or in sets or batches, e.g., at the beginning of a stage of the treatment, and the patient wears each appliance until the pressure of each appliance on the teeth can no longer be felt or has resulted in the maximum amount of expressed tooth movement for that given stage. A plurality of different appliances (e.g., set) can be designed and even fabricated prior to the patient wearing any appliance of the plurality. After wearing an appliance for an appropriate period of time, the patient replaces the current appliance with the next appliance in the series until no more appliances remain. The appliances are generally not affixed to the teeth and the patient may place and replace the appliances at any time during the procedure (e.g., patient-removable appliances). The final appliance or several appliances in the series may have a geometry or geometries selected to overcorrect the tooth arrangement, i.e., have a geometry which would (if fully achieved) move individual teeth beyond the tooth arrangement which has been selected as the “final.” Such over-correction may be desirable in order to offset potential relapse after the repositioning method has been terminated, i.e., to permit movement of individual teeth back toward their pre-corrected positions. Over-correction may also be beneficial to speed the rate of correction, i.e., by having an appliance with a geometry that is positioned beyond a desired intermediate or final position, the individual teeth will be shifted toward the position at a greater rate. In such cases, the use of an appliance can be terminated before the teeth reach the positions defined by the appliance.
  • During a course of orthodontic treatment, it may be necessary to apply a force to a patient's teeth to generate movement of the tooth to bring the patient's teeth into a better occlusion. In many instances, it may not be possible to generate desired levels of such a force solely through the use of a tooth positioning appliance such as the tooth positioning appliance 10 described above. The forces generated by such a tooth positioning appliance can, however, be supplemented by the use of an orthodontic elastic member.
  • In accordance with an embodiment of the present invention, an orthodontic appliance, such as those described above, can be designed/configured for use in engagement with one or more elastic members. Such an appliance, can be configured to include one or more hooks for engagement with one or more elastic members. And a set of appliances can include one or more appliances with hooks.
  • FIG. 2A illustrates tooth positioning appliances 20, 22 for receiving, respectively, upper and lower teeth of a patient. Appliances 20, 22 include hooks 24, 26, respectively. Appliance 20 includes a gingival edge 25 of the appliance that substantially follows along a gingival margin of the patient's dentition as the appliance 20 is worn. Similarly, appliance 22 includes a gingival edge 27. The hooks 24, 26 extend gingivally or in a gingival direction relative to gingival edge 25, 27, respectively, and may be pointed in a mesial, distal, or vertical direction In the illustrated embodiment, hook 24 is pointed mesially and hook 26 is pointed distally. As noted above, such a gingivally offset configuration can maximize the surface area of the aligner material engaging the tooth received in an adjacent tooth receiving cavity. Hooks 24, 26 may further be offset laterally, e.g., to better accommodate an elastic member engaging the hook, as described further herein. In use, an orthodontic elastic member can be coupled between the hooks 24, 26, thereby applying a reciprocal force to each of the appliances 20, 22. One or more hooks can be incorporated into each of the appliances 20, 22 to apply one or more forces into the appliances. Such forces can be used to supplement the teeth repositioning forces generated, e.g., by engagement between the patient's teeth/tooth surfaces and surfaces of corresponding receiving cavities of the appliances 20, 22.
  • FIG. 2B illustrates positioning appliances 20, 22. The appliances 20, 22 include hooks 24, 26, respectively, wherein the hooks 24, 26 angle or curve back more toward tooth's surfaces compared to the embodiment illustrated in FIG. 2A. Hooks as in FIG. 2B may be selected, for example, to better avoid unwanted contact or poking of the patient's soft tissue.
  • FIG. 3A illustrates teeth 28 received within teeth receiving cavities of an incremental tooth positioning appliance 30. An orthodontic elastic member 32 is coupled with the tooth positioning appliance 30 via a hook 34 formed by creating a u-shaped aperture 36 located in the side of the appliance. The aperture 36 can be formed into an existing appliance at a location selected for the transfer of the force from the elastic member into the appliance. The aperture 36 can have a slot width and a shape selected to accommodate the elastic member. A hook 38 can also be positioned along a gingival margin of the appliance 30. The hook 38 can be formed, for example, via adjacent slots 40, 42 formed in the gingival margin of the appliance 30. Hooks 34 and 38 may be formed by simply cutting or trimming out material from a shell appliance. However, hooks formed by such an approach reduce appliance material or surfaces engaging a tooth received within an adjacent cavity and require deflection of appliance material forming the hook in order to accommodate a positioned elastic member (see, e.g., FIG. 3B).
  • FIG. 3B is a cross-sectional view of a tooth 28 and the positioning appliance 30 of FIG. 2A. Because the hook 34 is formed via the u-shaped aperture, when the elastic member 32 is coupled with the hook 34, the hook is forced to deflect away from the adjacent surface of the tooth 28 to accommodate the presence of the elastic member 32 between the hook 34 and the tooth 28. Additional deflection of the hook 34 may be induced by the force imparted into the hook by the elastic member 32. Such additional deflections can be controlled to some extent by shaping the overall width of the u-shaped aperture to produce a wider hook.
  • FIG. 4A illustrates an incremental tooth positioning appliance 40 having an offset hook 42. FIG. 4B illustrates a tooth 28 received within a tooth receiving cavity of the incremental tooth positioning appliance 40 and an orthodontic elastic member 32 coupled with the offset hook 42. The offset hook 42 is offset from an adjacent surface of the tooth 28 (e.g., buccal surface, lingual surface) when the appliance 40 is coupled with the patient's teeth and no orthodontic elastic member is coupled with the hook. The offset can be configured to accommodate an elastic member with reduced deflection, in contrast to the hook 34 or 38 of FIGS. 3A and 3B. The hook 42 can be shaped to retain the elastic member in the absence of the elastic member being coupled with an opposing arch of the patient teeth. For example, the hook 42 can be shaped to trap the elastic member in contact with the surface of the tooth 28 (e.g., via a hook shaped to engage a sufficient portion of the perimeter of the elastic member), while still allowing installation of the elastic member into the trapping engagement of the hook 42 via an opening 46. The lateral offset may be configured such that the opening 46 is closer to the tooth than the maximum offset distance, in order that the offset allows the elastic to be engaged against the aligner without touching the tooth, but the hook does not protrude towards the soft tissue, thereby making the hook comfortable for the patient.
  • In one example, the tip of the hook may curve or angle away from soft tissue or back toward the tooth surface. The tip of the hook may also be curved, angled, or bent towards the gingival line such that the elastic may be placed into the aligner first before the aligner is worn, and the hook angle/curvature keeps the elastic from falling off of the aligner.
  • The appliance 40 can optionally include a reinforcement structure in the vicinity of the hook 42 to reduce deflection induced by the force from the elastic member 32. For example, as illustrated in FIG. 4C, the appliance 40 can include a locally strengthened region 48 (e.g., via increased thickness in the area of the hook). The appliance 40 can also be locally stiffened by embedding a reinforcing structure (e.g., a stronger and stiffer material such as stainless steel or plastic resin filler) into the appliance to reinforce the appliance/hook against deflection induced by the force from the elastic member.
  • As illustrated in FIG. 5, an offset hook 50 can also be disposed gingivally offset relative to a center of a clinical crown 52 of a tooth 28 as received in a cavity proximate to the hook 50, and may be gingivally offset relative to a gingival edge of the appliance or a gingival margin or line 51 identifying or approximating where gingival tissue meets the base of the tooth 28 crown. Such a gingival offset can be used to increase the surface area of the positioning appliance that engages the tooth 28, as well as to provide space for accommodating an elastic member 32 without necessarily requiring lateral deflection for elastic member engagement. As illustrated in FIG. 6, an appliance having such a gingivally offset hook 50 can include a locally reinforced area 54 (e.g., the appliance can be locally thickened in the vicinity of the offset hook) to reduce deflection of the hook 50 induced by the force from the elastic member. The appliance can also be locally stiffened by embedding a reinforcing structure (e.g., a stronger and stiffer material such as stainless steel or plastic resin) into the appliance to reinforce the appliance/hook against deflection induced by the force from the elastic member.
  • FIG. 7 illustrates an offset hook 56 that is disposed even more gingivally offset relative to the center of a clinical crown 52 of a tooth 28 received in a cavity proximate to the hook 56 than the hook 50 shown in FIGS. 5 and 6. In addition to being more gingivally offset, the hook 56 is also offset further from the adjacent surface of the tooth 28 in order to be disposed at or below a gingival line 58 for the tooth 28. The appliance having such a gingivally offset hook 56 can include a locally reinforced area 60 (e.g., the appliance can be locally thickened in the vicinity of the offset hook) to reduce deflection of the hook 56 induced by the force from the elastic member 32.
  • An appliance can be configured with an exterior offset hook that couples with an elastic member such that the elastic member does not contact a surface of the tooth. FIGS. 8A and 8B illustrate an exterior offset hook 62 positioned similar to the offset hook 42 illustrated in FIGS. 4A through 4C. FIGS. 9A and 9B illustrate an exterior offset hook 64 offset gingivally similar to the offset hook illustrated in FIGS. 5 and 6. A positioning appliance can be configured with such an exterior offset hook by incorporating additional material on the exterior of a basic positioning appliance such as the appliance 10 illustrated in FIG. 1. Exterior hooks can also be locally reinforced, for example, via locally thickened areas as illustrated in FIGS. 8B and 9B.
  • A tooth repositioning appliance can also include a reinforcement structure to stiffen the appliance against deflection induced by the force from an elastic member. For example, FIG. 10 illustrates a repositioning appliance 70 having a reinforcing corrugation 72 formed along a gingival edge of the repositioning appliance. The corrugation 72 can be formed by adding an elongated protrusion to a male mold prior to forming the appliance over the male mold. A corrugation can be used to stiffen the gingival edge of the repositioning appliance against lateral deflection induced by the force from the elastic member 32.
  • The present invention further provides methods for using one or more orthodontic positioning devices having one or more hooks configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn device. The above-described orthodontic positioning devices can be configured for use in practicing orthodontic treatment or tooth repositioning methods. For example, a first orthodontic positioning device can be provided, the device having a hook configured to interface with an orthodontic elastic member is received (e.g., by a patient, by a dental professional, etc.), e.g., as described above. The first positioning device is coupled with a first arch of the patient's teeth. An orthodontic elastic member is coupled with the hook of the first positioning device to transfer a force from the elastic member into the first positioning device. A second orthodontic positioning device having a hook configured to interface with an orthodontic elastic member is received. The second orthodontic positioning device is coupled with a second arch of the patient's teeth, and the orthodontic elastic member that is coupled with the hook of the first positioning device is coupled with the hook of the second positioning device. Methods can include use of a plurality of different (e.g., successive) positioning devices or appliances.
  • The present invention further provides systems for repositioning a patient's teeth. A system can include a plurality of orthodontic tooth positioning appliances. Consistent with discussion provided further herein, at least two of the appliances can have different teeth receiving cavities shaped to receive and resiliently reposition the patient's teeth in a first arch of the patient's teeth from a first arrangement to a successive arrangement. At least one of the appliances includes a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn appliance. The hook can be configured to be offset from a surface of a tooth when the appliance is coupled with the patient's teeth in the first arch and no orthodontic elastic member is coupled with the hook.
  • A system can include a plurality appliances, or sets of appliances, for repositioning a patient's upper and lower arch teeth. For example, one of a plurality of upper arch appliances and one of a plurality of lower arch appliances can be configured to be worn simultaneously and coupled with each other via an orthodontic elastic member coupling the hook of the upper arch appliance to the hook of the lower arch appliance. The elastic member may also be coupled within the same arch in order to connect the elastic to an elastic hook that may be directly bonded to an exposed tooth elsewhere in the arch, whereby the aligner has been cut around that tooth-affixed elastic hook. The elastic member may also be coupled from the aligner to an anchorage device attached somewhere in the mouth such as a mini-implant or temporary anchorage device (TAD) affixed to the patient's jaw structure.
  • The present invention further provides methods, such as a computer-implemented methods, for designing an orthodontic positioning device having teeth receiving cavities. Such a method can be used to design the above-described orthodontic positioning devices. A method can include providing and/or receiving a digital representation of the patient's teeth in a selected arrangement. The arrangement can be selected to define the shape of teeth receiving cavities shaped to receive and apply a resilient positioning force to a patient's teeth. An appliance can be modeled based on the received representation. The received representation can be used to define the teeth receiving cavities of the appliance. The appliance is modeled to include a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the appliance, including hook designs or configurations as indicated further herein. For example, the modeled hook can be configured such that it is offset (e.g., laterally) from a surface of a tooth when the appliance is coupled with the patient's teeth and no orthodontic elastic member is coupled with the hook. The hook may alternatively or additionally be gingivally offset, e.g., relative to a gingival edge of the model appliance or a gingival line of the patient. A reinforcement structure may further be designed or modeled so as to stiffen the appliance against lateral deflection induced by the force from the elastic member can optionally be modeled into the appliance. The reinforcement structure can include, for example, a corrugation (e.g., positioned along a gingival edge of the appliance to increase the bending stiffness of the gingival edge). The reinforcement structure can include a locally reinforced area (e.g., locally thickened) connected with the hook to stiffen the hook against deflection induced by the force from the elastic member.
  • An aligner having an exterior hook can be created using automated steps, manual steps, and/or a combination of automated and manual steps. Such steps can include, for example, the removal of material from an aligner assembly (e.g., using a physical cutter such as an end mill, a drill, and a punch; using non-contact removal techniques such as laser cutting, and electrical discharge machining (EDM); using other media such as water jets, hot water, and hot gases); the addition of material to an aligner assembly (e.g., by bonding or attaching a pre-formed feature such as a hook); and/or direct fabrication techniques (e.g., stereo lithography).
  • FIG. 11 illustrates a method 100 for indirect fabrication of an aligner having a hook by forming a sheet of material over a mold. The geometry of the mold includes representations of a patient's teeth in an arrangement suitable to generate desired teeth receiving cavities. A witness object is added to the teeth representations to generate an inner surface of an offset hook portion of the aligner. While some of the steps of method 100 are described as being computer-implemented, the alternate use of non-computer implemented approaches may also be apparent to a person of skill in the art. The method 100 can be used to generate the appliances disclosed above.
  • In step 102, the position and orientation of an elastic member relative to the aligner is defined. The defined position and orientation of the elastic member can be generated, for example, using computer-based 3-dimensional planning/design tools, such as Treat™ from Align Technology, Inc. Computer modeling of one or successive tooth arrangements for a patient's upper and lower teeth can be used to position/orient an elastic member between an upper jaw appliance hook (or a feature attached to an upper jaw tooth) and a lower jaw appliance hook (or a feature attached to a lower jaw tooth). While the elastics shown in the figures are oriented generally vertically, other orientations are possible (e.g., to couple non-occluding pairs of teeth). An elastic member can be positioned so as to generate supplemental forces to treat certain types of malocclusion (e.g., class II and III corrections, canine rotation, extrusion, etc.).
  • In step 104, a hook edge is defined relative to the mold geometry using the defined position/orientation of the elastic member. The hook edge definition can be a spline on a tooth surface in a 3-dimensional model. The hook edge can be used to position and orient a witness object created in step 106. FIGS. 12A and 12B illustrate a hook edge definition and a witness object positioned and oriented using the hook edge definition and a corresponding tooth surface. The witness object is shaped to generate a suitable offset from the tooth surface to generate a corresponding offset in the inner surface of the aligner. An area of the aligner that will interface with the elastic member to hold the elastic member can be determined. Based on the determined area, the witness object can be created that corresponds to the determined area and merged into the 3-dimensional representation of the patient's teeth. The witness object can be merged into a gingival surface included in the 3-dimensional representation of the patient's teeth, and appropriate smoothing applied. The resulting 3-dimensional representation (mold geometry) can be used to generate a positive mold over which a sheet of material is formed to create an aligner.
  • In step 108, one or more markers can optionally be created/added to the mold geometry to generate a reference feature(s) in an aligner that can be used to guide subsequent removal of material from the aligner (e.g., see step 118 below) and/or to guide subsequent addition of material to the aligner (e.g., see step 116 below). Further, a production graphic(s) (e.g., a screenshot on a computer monitor or paper) can optionally be generated from the mold geometry in step 110 to, for example, guide subsequent removal of material from the aligner and/or to guide subsequent addition of material to the aligner.
  • The mold geometry is then used to create a physical mold, which is used to form a sheet of elastomeric material to form the aligner. In step 112, a mold is created from the 3-dimensional mold geometry. The mold can be created, for example, directly using automated fabrication techniques (e.g., stereo lithography). In step 114, the aligner is fabricated by molding a sheet of material over the physical mold.
  • Once the basic aligner shell is fabricated, material can be optionally added and/or removed from the aligner to finalize the geometry of the hook. In step 116, material can be optionally added to the aligner to, for example, form part or all of the hook structure. For example, a preformed feature can be bonded or otherwise attached to the aligner to serve as the hook. In step 118, material can be optionally removed from the aligner to complete the formation of the offset hook. For example, localized portions of the aligner can be removed to accommodate the elastic member when installed on the hook.
  • FIG. 13 illustrates a method 200 for direct fabrication of an aligner having a hook, for example, via direct fabrication from a 3-dimensional representation of the aligner. Suitable direct fabrication techniques (e.g., stereo lithography) can be used. Because some of the steps of the method 200 are similar to corresponding steps of the method 100 of FIG. 11, detailed description of such steps is not repeated here. While some of the steps of method 200 are described as being computer-implemented, the alternate use of non-computer implemented approaches may also be apparent to a person of skill in the art. The method 200 can be used to generate the appliances disclosed above.
  • In step 202, the position and orientation of an elastic member relative to the aligner is defined. The discussion above regarding step 102 is applicable to step 202.
  • In step 204, an aligner shell is defined using a 3-dimensional representation of a patient's teeth. A computer program can be used to define a 3-dimensional representation of the aligner shell using representations of the patient's teeth to define the teeth receiving cavities of the aligner shell. The outer surfaces of the aligner shell can be defined, for example, using suitable offsets from the surfaces of the teeth.
  • In step 206, the definition of the aligner shell is modified to incorporate a hook feature, for example, one of the above disclosed hook features. To provide for efficient incorporation of such a hook feature, pre-defined digital objects can be positioned, oriented, and/or scaled relative to the aligner shell definition and then merged into the aligner shell definition. Additional material can be added and/or removed from the resulting aligner definition using known methods.
  • In step 208, one or more markers can optionally be created/added to the aligner definition as discussed above with respect to step 108 of the method 100. Likewise, in step 210, production graphics can be created and used as discussed above with respect to step 110 of the method 100.
  • In step 212, the resulting 3-dimensional representation of the aligner is used to directly fabricate the aligner. A suitable direct fabrication method, such as known rapid prototyping approaches (e.g., stereo lithography) can be used.
  • In step 214, material can be added to the resulting aligner as discussed above with respect to step 116 of the method 100. Likewise, in step 216, material can be removed from the resulting aligner as discussed above with respect to step 118 of the method 100.
  • An alternative reinforcement technique provides marked regions in the refractory model (the stereolithography model) whereby protrusions or recessed areas are designed to hold wires and/or plastic resin, which are inserted into the model, such that when the aligner sheet material is formed over the model, the reinforcements are “picked up” by the plastic formed over the reinforcements. The aligner is trimmed according to specification, leaving the reinforcement embedded into the hook region of the aligner.
  • FIG. 14 is a simplified block diagram of a data processing system 300 embodying the present invention. Data processing system 300 typically includes at least one processor 302 which communicates with a number of peripheral devices via bus subsystem 304. These peripheral devices typically include a storage subsystem 306 (memory subsystem 308 and file storage subsystem 314), a set of user interface input and output devices 318, and an interface to outside networks 316, including the public switched telephone network. This interface is shown schematically as “Modems and Network Interface” block 316, and is coupled to corresponding interface devices in other data processing systems via communication network interface 324. Data processing system 300 could be a terminal or a low-end personal computer or a high-end personal computer, workstation or mainframe.
  • The user interface input devices typically include a keyboard and may further include a pointing device and a scanner. The pointing device may be an indirect pointing device such as a mouse, trackball, touchpad, or graphics tablet, or a direct pointing device such as a touch screen incorporated into the display. Other types of user interface input devices, such as voice recognition systems, are also possible.
  • User interface output devices typically include a printer and a display subsystem, which includes a display controller and a display device coupled to the controller. The display device may be a cathode ray tube (CRT), a flat-panel device such as a liquid crystal display (LCD), or a projection device. The display subsystem may also provide non-visual display such as audio output.
  • Storage subsystem 306 maintains the basic programming and data constructs that provide the functionality of the present invention. The software modules discussed above are typically stored in storage subsystem 306. Storage subsystem 306 typically comprises memory subsystem 308 and file storage subsystem 314.
  • Memory subsystem 308 typically includes a number of memories including a main random access memory (RAM) 310 for storage of instructions and data during program execution and a read only memory (ROM) 312 in which fixed instructions are stored. In the case of Macintosh-compatible personal computers the ROM would include portions of the operating system; in the case of IBM-compatible personal computers, this would include the BIOS (basic input/output system).
  • File storage subsystem 314 provides persistent (non-volatile) storage for program and data files, and typically includes at least one hard disk drive and at least one disk drive (with associated removable media). There may also be other devices such as a CD-ROM drive and optical drives (all with their associated removable media). Additionally, the system may include drives of the type with removable media cartridges. The removable media cartridges may, for example be hard disk cartridges, such as those marketed by Syquest and others, and flexible disk cartridges, such as those marketed by Iomega. One or more of the drives may be located at a remote location, such as in a server on a local area network or at a site on the Internet's World Wide Web.
  • In this context, the term “bus subsystem” is used generically so as to include any mechanism for letting the various components and subsystems communicate with each other as intended. With the exception of the input devices and the display, the other components need not be at the same physical location. Thus, for example, portions of the file storage system could be connected via various local-area or wide-area network media, including telephone lines. Similarly, the input devices and display need not be at the same location as the processor, although it is anticipated that the present invention will most often be implemented in the context of PCs and workstations.
  • Bus subsystem 304 is shown schematically as a single bus, but a typical system has a number of buses such as a local bus and one or more expansion buses (e.g., ADB, SCSI, ISA, EISA, MCA, NuBus, or PCI), as well as serial and parallel ports. Network connections are usually established through a device such as a network adapter on one of these expansion buses or a modem on a serial port. The client computer may be a desktop system or a portable system.
  • Scanner 320 is responsible for scanning casts of the patient's teeth obtained either from the patient or from an orthodontist and providing the scanned digital data set information to data processing system 300 for further processing. In a distributed environment, scanner 320 may be located at a remote location and communicate scanned digital data set information to data processing system 300 via network interface 324.
  • Fabrication machine 322 can encompass a range of fabrication machines and methods used to fabricate positive molds for the above-described repositioning appliances or directly fabricate the above-described repositioning appliances based on data set information received from data processing system 300. In a distributed environment, fabrication machine 322 may be located at a remote location and receive data set information from data processing system 300 via network interface 324.
  • It is understood that the examples and embodiments described herein are for illustrative purposes and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application and the scope of the appended claims. Numerous different combinations or the illustrated or described embodiments are possible, including combinations of any aspects of the different described embodiments. Such combinations are considered to be part of the present invention.

Claims (28)

1. An orthodontic positioning device for use with an orthodontic elastic member, the device comprising:
a patient removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to a patient's teeth, the appliance comprising a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn appliance, the hook configured to be laterally offset from a surface of a tooth when the appliance is coupled with the patient's teeth and no orthodontic elastic member is coupled with the hook.
2. The device of claim 1, wherein the appliance comprises a reinforcement structure configured to stiffen the appliance against lateral deflection induced by the force from the elastic member.
3. The device of claim 2, wherein the reinforcement structure comprises a corrugation in a portion of the appliance.
4. The device of claim 2, wherein the appliance further comprises a locally reinforced area connected with the hook to stiffen the hook against lateral deflection induced by the force from the elastic member.
5. The device of claim 1, wherein the appliance further comprises a locally reinforced area connected with the hook to stiffen the hook against deflection induced by the force from the elastic member.
6. The device of claim 1, wherein the hook is gingivally offset from a gingival edge of the appliance.
7. The device of claim 1, wherein an orthodontic elastic member contacts a surface of a tooth when the appliance is coupled with the patient's teeth and the orthodontic elastic member is coupled with the hook.
8. The device of claim 1, wherein an orthodontic elastic member does not contact a surface of a tooth when the appliance is coupled with the patient's teeth and the orthodontic elastic member is coupled with the hook.
9. The device of claim 1, whereby the tip of the hook angles or curves back toward a tooth surface such that a hook tip is pointed closer to the tooth than a body portion of the hook so as to avoid poking the patient's soft tissues.
10. The device of claim 1, whereby the hook is curved, angled, or bent towards the gingival line so that the elastic can be secured onto the aligner without it falling off when the aligner has not yet been inserted.
11. A method for using one or more orthodontic positioning devices, the method comprising:
receiving a first orthodontic positioning device in accordance with claim 1;
coupling the first positioning device with a first arch of a patient's teeth; and
coupling an orthodontic elastic member with the hook of the first positioning device to transfer a force from the elastic member into the first positioning device.
12. The method of claim 11, further comprising:
receiving a second orthodontic positioning device having teeth receiving cavities shaped to receive and apply a resilient positioning force to a patient's teeth, the second device comprising a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn device, the hook configured to be offset from a surface of a tooth when the second device is coupled with the patient's teeth and no orthodontic elastic member is coupled with the hook;
coupling the second orthodontic positioning device with a second arch of the patient's teeth; and
coupling the orthodontic elastic member that is coupled with the hook of the first positioning device with the hook of the second positioning device.
13. A computer-implemented method for designing an orthodontic positioning device having teeth receiving cavities, the method comprising:
receiving a digital representation of a patient's teeth in a selected arrangement; and
modeling an appliance based on the received representation, the appliance comprising teeth receiving cavities shaped to receive and apply a resilient positioning force to the patient's teeth, the appliance comprising a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn appliance, the hook configured to be offset from a surface of a tooth when the appliance is coupled with the patient's teeth and no orthodontic elastic member is coupled with the hook.
14. The method of claim 13, wherein modeling an appliance comprises modeling a reinforcement structure configured to stiffen the appliance against lateral deflection induced by the force from the elastic member.
15. The method of claim 14, wherein modeling a reinforcement structure comprises modeling a corrugation.
16. The method of claim 14, wherein modeling a reinforcement structure comprises modeling a locally reinforced area connected with the hook to stiffen the hook against deflection induced by the force from the elastic member.
17. A system for orthodontic repositioning of a patient's teeth, the system comprising:
a plurality of orthodontic tooth positioning appliances for a patient's teeth, at least two of the appliances having different teeth receiving cavities shaped to receive and resiliently reposition the patient's teeth in a first arch of the patient's teeth from a first arrangement to a successive arrangement, at least one of the appliances comprising a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn appliance, the hook configured to be offset from a surface of a tooth when the appliance is coupled with the patient's teeth in the first arch and no orthodontic elastic member is coupled with the hook.
18. The system of claim 17, wherein the appliances comprise:
a plurality of appliances for repositioning an upper arch of the patient's teeth; and
a plurality of appliances for repositioning a lower arch of the patient's teeth,
wherein one of the upper arch appliances and one of the lower arch appliances are configured to be worn simultaneously and coupled with each other via an orthodontic elastic member coupling the hook of the upper arch appliance to the hook of the lower arch appliance.
19. The system of claim 17, wherein at least one of the appliances comprises a corrugation to stiffen the appliance against lateral deflection induced by the force from the elastic member.
20. The system of claim 17, wherein at least one of the appliances comprises a locally reinforced area connected with the hook to stiffen the hook against deflection induced by the force from the elastic member.
21. The system of claim 17, wherein the hook is disposed gingivally offset relative to a center of a tooth receiving cavity or a center of a clinical crown of a tooth as received in a cavity proximate to the hook.
22. The system of claim 17, wherein the hook gingivally offset from a gingival line of the appliance.
23. A method for manufacturing an orthodontic positioning appliance having teeth receiving cavities and an external hook for an orthodontic elastic member, the method comprising:
receiving a digital representation of a patient's teeth in a selected arrangement;
defining a position and an orientation of an orthodontic elastic member relative to the digital representation;
modifying the digital representation to add a witness object adjacent to a tooth surface of the digital representation;
transmitting or storing the modified digital representation for delivery to a fabrication system for fabricating a mold corresponding to the modified digital representation and fabricating from the mold an orthodontic appliance comprising a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn appliance.
24. The method of claim 23, wherein the hook is configured to be laterally offset from a surface of a tooth or gingivally offset from a gingival edge of the appliance when the appliance is coupled with the patient's teeth and absent an orthodontic elastic member coupled with the hook.
25. The method of claim 23, wherein fabricating the appliance comprises molding a sheet of elastomeric material over the mold.
26. The method of claim 23, further comprising adding or removing material from the molded sheet.
27. A method for manufacturing an orthodontic positioning appliance having teeth receiving cavities and an external hook for an orthodontic elastic member, the method comprising:
receiving a digital representation of a patient's teeth in a selected arrangement;
defining a position and an orientation of an orthodontic elastic member relative to the digital representation;
modifying the digital representation to add a hook representation to the digital representation;
directly fabricating an positioning appliance from the modified digital representation, the appliance comprising a hook configured to interface with an orthodontic elastic member so as to react a force from the elastic member into the patient-worn appliance.
28. The method of claim 27, wherein the device is fabricated using a rapid prototyping method.
US12/772,130 2010-04-30 2010-04-30 Reinforced aligner hooks Abandoned US20110269092A1 (en)

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EP11719883.8A EP2563265B1 (en) 2010-04-30 2011-04-08 Reinforced aligner hooks
ES11719883.8T ES2638310T3 (en) 2010-04-30 2011-04-08 Reinforced Aligner Hooks
PCT/IB2011/000815 WO2011135418A1 (en) 2010-04-30 2011-04-08 Reinforced aligner hooks
US14/951,245 US10271923B2 (en) 2010-04-30 2015-11-24 Reinforced aligner hooks
US16/285,004 US20190321134A1 (en) 2010-04-30 2019-02-25 Reinforced aligner hooks

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8641414B2 (en) 2011-10-10 2014-02-04 Align Technology, Inc. Automatic placement of precision cuts
US20140363779A1 (en) * 2013-06-07 2014-12-11 Align Technology, Inc. Adjusting a tooth position
US20150157421A1 (en) * 2013-12-11 2015-06-11 Martin G. Martz Tooth positioning appliance with curved interconnecting elements
US20160310236A1 (en) * 2014-01-31 2016-10-27 Align Technology, Inc. Direct fabrication of orthodontic appliances with elastics
WO2016198934A1 (en) * 2015-06-09 2016-12-15 Align Technology, Inc. Dental appliance binding structure
WO2017007964A1 (en) 2015-07-07 2017-01-12 Align Technology, Inc. Orthodontic appliances with variable properties and integrally formed components
IT201600125305A1 (en) * 2016-12-12 2018-06-12 Colonna Andrea orthodontic device
WO2018118769A1 (en) * 2016-12-19 2018-06-28 Align Technology, Inc. Aligners with enhanced gable bends
US10045835B2 (en) 2016-02-17 2018-08-14 Align Technology, Inc. Variable direction tooth attachments
US10123706B2 (en) 2016-07-27 2018-11-13 Align Technology, Inc. Intraoral scanner with dental diagnostics capabilities
US10130445B2 (en) 2014-09-19 2018-11-20 Align Technology, Inc. Arch expanding appliance
US10248883B2 (en) 2015-08-20 2019-04-02 Align Technology, Inc. Photograph-based assessment of dental treatments and procedures
US10271923B2 (en) 2010-04-30 2019-04-30 Align Technology, Inc. Reinforced aligner hooks
US10327872B2 (en) 2014-08-15 2019-06-25 Align Technology, Inc. Field curvature model for confocal imaging apparatus with curved focal surface
US10335250B2 (en) 2015-10-07 2019-07-02 uLab Systems, Inc. Three-dimensional printed dental appliances using lattices
US10357336B2 (en) 2015-10-07 2019-07-23 uLab Systems, Inc. Systems and methods for fabricating dental appliances or shells
US10357342B2 (en) 2016-09-21 2019-07-23 uLab Systems, Inc. Digital dental examination and documentation
US10363116B2 (en) 2015-07-07 2019-07-30 Align Technology, Inc. Direct fabrication of power arms
US10383705B2 (en) 2016-06-17 2019-08-20 Align Technology, Inc. Orthodontic appliance performance monitor
US10390913B2 (en) 2018-01-26 2019-08-27 Align Technology, Inc. Diagnostic intraoral scanning
US10421152B2 (en) 2011-09-21 2019-09-24 Align Technology, Inc. Laser cutting
US10449016B2 (en) 2014-09-19 2019-10-22 Align Technology, Inc. Arch adjustment appliance
US10456043B2 (en) 2017-12-29 2019-10-29 Align Technology, Inc. Compact confocal dental scanning apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU92296A1 (en) 2013-10-18 2015-04-20 Valeo Lab Gmbh Liquid composition for an electronic cigarette

Family Cites Families (160)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467432A (en) 1943-07-23 1949-04-19 Harold D Kesling Method of making orthodontic appliances and of positioning teeth
US3407500A (en) 1966-05-06 1968-10-29 Peter C. Kesling Tooth positioner
US3660900A (en) 1969-11-10 1972-05-09 Lawrence F Andrews Method and apparatus for improved orthodontic bracket and arch wire technique
US3600808A (en) 1970-01-22 1971-08-24 James Jackson Reeve Anterior root-torquing auxiliary wire
US3860803A (en) 1970-08-24 1975-01-14 Diecomp Inc Automatic method and apparatus for fabricating progressive dies
US3683502A (en) 1970-09-14 1972-08-15 Melvin Wallshein Orthodontic systems
US3738005A (en) 1972-03-22 1973-06-12 M Cohen Method and apparatus for applying orthodontic brackets and the like
US3916526A (en) 1973-05-10 1975-11-04 Fred Frank Schudy Method and apparatus for orthodontic treatment
US3922786A (en) 1974-01-30 1975-12-02 Joseph L Lavin Method and apparatus for forming and fitting orthodontic appliances
US3983628A (en) 1975-01-24 1976-10-05 Raul Acevedo Dental articulator, new bite registration guide, and diagnostic procedure associated with stereodont orthodontic study model
US3950851A (en) 1975-03-05 1976-04-20 Bergersen Earl Olaf Orthodontic positioner and method for improving retention of tooth alignment therewith
US4014096A (en) 1975-03-25 1977-03-29 Dellinger Eugene L Method and apparatus for orthodontic treatment
JPS5358191A (en) 1976-11-05 1978-05-25 Osamu Yoshii Method of producing dental correction treating instrument using silicon resin material
US4348178A (en) 1977-01-03 1982-09-07 Kurz Craven H Vibrational orthodontic appliance
US4195046A (en) 1978-05-04 1980-03-25 Kesling Peter C Method for molding air holes into a tooth positioning and retaining appliance
US4324547A (en) 1978-09-16 1982-04-13 Vishay Intertechnology, Inc. Dentistry technique
US4253828A (en) 1979-04-09 1981-03-03 Coles Donna C Orthodontic appliance
DE2936847A1 (en) 1979-09-12 1981-03-19 Heitlinger Paul A process for the production of dental prostheses and apparatus for performing the method
US4575805A (en) 1980-12-24 1986-03-11 Moermann Werner H Method and apparatus for the fabrication of custom-shaped implants
DE3203937C2 (en) 1982-02-05 1985-10-03 Luc Dr. 4150 Krefeld De Barrut
US4742464A (en) 1982-04-14 1988-05-03 Francois Duret Method of making a prosthesis, especially a dental prosthesis
FR2525103B1 (en) 1982-04-14 1985-09-27 Duret Francois A fingerprinting by optical means, in particular for the automatic realization of prostheses
US4500294A (en) 1983-10-03 1985-02-19 Epic International Corporation Method and device for detecting dental cavities
US4526540A (en) 1983-12-19 1985-07-02 Dellinger Eugene L Orthodontic apparatus and method for treating malocclusion
US4663720A (en) 1984-02-21 1987-05-05 Francois Duret Method of and apparatus for making a prosthesis, especially a dental prosthesis
DE3415006A1 (en) 1984-04-19 1985-11-07 Wolfgang Orthuber A method Zahntechnisches and apparatus for bending and twisting of a drahtstueckes
US4798534A (en) 1984-08-03 1989-01-17 Great Lakes Orthodontic Laboratories Inc. Method of making a dental appliance
US4575330B1 (en) 1984-08-08 1989-12-19
US4609349A (en) 1984-09-24 1986-09-02 Cain Steve B Active removable orthodontic appliance and method of straightening teeth
US4591341A (en) 1984-10-03 1986-05-27 Andrews Lawrence F Orthodontic positioner and method of manufacturing same
US4664626A (en) 1985-03-19 1987-05-12 Kesling Peter C System for automatically preventing overtipping and/or overuprighting in the begg technique
US4763791A (en) 1985-06-06 1988-08-16 Excel Dental Studios, Inc. Dental impression supply kit
GB2176402B (en) 1985-06-20 1989-04-19 Craig Med Prod Ltd Wound management appliance for use on the human skin
US4936862A (en) 1986-05-30 1990-06-26 Walker Peter S Method of designing and manufacturing a human joint prosthesis
CH672722A5 (en) 1986-06-24 1989-12-29 Marco Brandestini
US5125832A (en) 1986-06-26 1992-06-30 Tp Orthodontics, Inc. Bracket for permitting tipping and limiting uprighting
US4676747A (en) 1986-08-06 1987-06-30 Tp Orthodontics, Inc. Torquing auxiliary
US4983334A (en) 1986-08-28 1991-01-08 Loren S. Adell Method of making an orthodontic appliance
US4755139A (en) 1987-01-29 1988-07-05 Great Lakes Orthodontics, Ltd. Orthodontic anchor appliance and method for teeth positioning and method of constructing the appliance
US4850864A (en) 1987-03-30 1989-07-25 Diamond Michael K Bracket placing instrument
US4877398A (en) 1987-04-16 1989-10-31 Tp Orthodontics, Inc. Bracket for permitting tipping and limiting uprighting
US4850865A (en) 1987-04-30 1989-07-25 Napolitano John R Orthodontic method and apparatus
US4856991A (en) 1987-05-05 1989-08-15 Great Lakes Orthodontics, Ltd. Orthodontic finishing positioner and method of construction
US5186623A (en) 1987-05-05 1993-02-16 Great Lakes Orthodontics, Ltd. Orthodontic finishing positioner and method of construction
US4836778A (en) 1987-05-26 1989-06-06 Vexcel Corporation Mandibular motion monitoring system
DE3723555C2 (en) 1987-07-16 1994-08-11 Steinbichler Hans A process for the production of dentures
NL8702391A (en) 1987-10-07 1989-05-01 Elephant Edelmetaal Bv A method for by means of a CAD-CAM system producing a dental crown for a dental preparation.
US4793803A (en) 1987-10-08 1988-12-27 Martz Martin G Removable tooth positioning appliance and method
US4880380A (en) 1987-10-13 1989-11-14 Martz Martin G Orthodonture appliance which may be manually installed and removed by the patient
US5130064A (en) 1988-04-18 1992-07-14 3D Systems, Inc. Method of making a three dimensional object by stereolithography
US4941826A (en) 1988-06-09 1990-07-17 William Loran Apparatus for indirect dental machining
US5100316A (en) 1988-09-26 1992-03-31 Wildman Alexander J Orthodontic archwire shaping method
US5055039A (en) 1988-10-06 1991-10-08 Great Lakes Orthodontics, Ltd. Orthodontic positioner and methods of making and using same
US4935635A (en) 1988-12-09 1990-06-19 Harra Dale G O System for measuring objects in three dimensions
IL88842A (en) 1988-12-30 1990-07-26 Shafir Aaron Apparatus and method for digitizing the contour of a surface particularly useful for preparing a dental crown
US5011405A (en) 1989-01-24 1991-04-30 Dolphin Imaging Systems Method for determining orthodontic bracket placement
EP0455700A1 (en) 1989-01-24 1991-11-13 Dolphin Imaging Systems Inc. Method and apparatus for generating cephalometric images
US4889238A (en) 1989-04-03 1989-12-26 The Procter & Gamble Company Medicament package for increasing compliance with complex therapeutic regimens
US4975052A (en) 1989-04-18 1990-12-04 William Spencer Orthodontic appliance for reducing tooth rotation
US5257203A (en) 1989-06-09 1993-10-26 Regents Of The University Of Minnesota Method and apparatus for manipulating computer-based representations of objects of complex and unique geometry
US5128870A (en) 1989-06-09 1992-07-07 Regents Of The University Of Minnesota Automated high-precision fabrication of objects of complex and unique geometry
US5121333A (en) 1989-06-09 1992-06-09 Regents Of The University Of Minnesota Method and apparatus for manipulating computer-based representations of objects of complex and unique geometry
US5027281A (en) 1989-06-09 1991-06-25 Regents Of The University Of Minnesota Method and apparatus for scanning and recording of coordinates describing three dimensional objects of complex and unique geometry
US5184306A (en) 1989-06-09 1993-02-02 Regents Of The University Of Minnesota Automated high-precision fabrication of objects of complex and unique geometry
JPH039712U (en) 1989-06-20 1991-01-30
FR2652256A1 (en) 1989-09-26 1991-03-29 Jourda Gerard Device for establishing the sign of a removable partial dental plaque.
DE3943098C2 (en) 1989-12-27 1997-01-23 Krenkel Christian Means for determining or regulating the relative position of teeth
US5368478A (en) 1990-01-19 1994-11-29 Ormco Corporation Method for forming jigs for custom placement of orthodontic appliances on teeth
US5542842A (en) 1992-11-09 1996-08-06 Ormco Corporation Bracket placement jig assembly and method of placing orthodontic brackets on teeth therewith
US5533895A (en) 1990-01-19 1996-07-09 Ormco Corporation Orthodontic appliance and group standardized brackets therefor and methods of making, assembling and using appliance to straighten teeth
US5431562A (en) 1990-01-19 1995-07-11 Ormco Corporation Method and apparatus for designing and forming a custom orthodontic appliance and for the straightening of teeth therewith
US5454717A (en) 1990-01-19 1995-10-03 Ormco Corporation Custom orthodontic brackets and bracket forming method and apparatus
US5447432A (en) 1990-01-19 1995-09-05 Ormco Corporation Custom orthodontic archwire forming method and apparatus
US5395238A (en) 1990-01-19 1995-03-07 Ormco Corporation Method of forming orthodontic brace
US5456600A (en) 1992-11-09 1995-10-10 Ormco Corporation Coordinated orthodontic archwires and method of making same
US5474448A (en) 1990-01-19 1995-12-12 Ormco Corporation Low profile orthodontic appliance
US5139419A (en) 1990-01-19 1992-08-18 Ormco Corporation Method of forming an orthodontic brace
DE69327661T2 (en) 1992-11-09 2000-07-20 Ormco Corp Method and apparatus for the manufacture of individual devices angepasstenorthodontischen
US5440326A (en) 1990-03-21 1995-08-08 Gyration, Inc. Gyroscopic pointer
US5562448A (en) 1990-04-10 1996-10-08 Mushabac; David R. Method for facilitating dental diagnosis and treatment
JPH0428359A (en) 1990-05-24 1992-01-30 Mitsubishi Petrochem Co Ltd Manufacture of mouthpiece for teeth set correction
US5452219A (en) 1990-06-11 1995-09-19 Dentsply Research & Development Corp. Method of making a tooth mold
US5340309A (en) 1990-09-06 1994-08-23 Robertson James G Apparatus and method for recording jaw motion
SE468198B (en) 1990-12-12 1992-11-23 Nobelpharma Ab Foerfarande and apparatus foer framstaellning of individually formed as three-dimensional bodies anvaendbara tandersaettningar, prostheses, etc.
US5131844A (en) 1991-04-08 1992-07-21 Foster-Miller, Inc. Contact digitizer, particularly for dental applications
US5131843A (en) 1991-05-06 1992-07-21 Ormco Corporation Orthodontic archwire
US5145364A (en) 1991-05-15 1992-09-08 M-B Orthodontics, Inc. Removable orthodontic appliance
US5176517A (en) 1991-10-24 1993-01-05 Tru-Tain, Inc. Dental undercut application device and method of use
SE469158B (en) 1991-11-01 1993-05-24 Nobelpharma Ab Dental avkaenningsanordning intended to anvaendas in connection with control of a workshop equipment
US5328362A (en) 1992-03-11 1994-07-12 Watson Sherman L Soft resilient interocclusal dental appliance, method of forming same and composition for same
US5273429A (en) 1992-04-03 1993-12-28 Foster-Miller, Inc. Method and apparatus for modeling a dental prosthesis
US5384862A (en) 1992-05-29 1995-01-24 Cimpiter Corporation Radiographic image evaluation apparatus and method
FR2693096B1 (en) 1992-07-06 1994-09-23 Deshayes Marie Josephe A method of modeling head and facial morphology from an x-ray of the skull.
US5528735A (en) 1993-03-23 1996-06-18 Silicon Graphics Inc. Method and apparatus for displaying data within a three-dimensional information landscape
SE501333C2 (en) 1993-05-27 1995-01-16 Sandvik Ab Method for producing ceramic dental restorations
SE501411C2 (en) 1993-07-12 1995-02-06 Nobelpharma Ab Method and apparatus for three-dimensional body usable in the human body
SE501410C2 (en) 1993-07-12 1995-02-06 Nobelpharma Ab Method and device in connection with the preparation of the tooth, bridge, etc.
CN1054737C (en) 1993-07-12 2000-07-26 欧索-泰公司 Multi-racial preformed orthodontic treatment appliance
NL9301308A (en) 1993-07-26 1995-02-16 Willem Frederick Van Nifterick A method for securing a dental prosthesis to be used implants in the jawbone of a patient and thereby agent.
US5382164A (en) 1993-07-27 1995-01-17 Stern; Sylvan S. Method for making dental restorations and the dental restoration made thereby
US5435902A (en) 1993-10-01 1995-07-25 Andre, Sr.; Larry E. Method of incremental object fabrication
US5338198A (en) 1993-11-22 1994-08-16 Dacim Laboratory Inc. Dental modeling simulator
SE502427C2 (en) 1994-02-18 1995-10-16 Nobelpharma Ab Method and apparatus utilizing articulator and computer equipment
US5880961A (en) 1994-08-02 1999-03-09 Crump; Craig D. Appararus and method for creating three-dimensional modeling data from an object
US5621648A (en) 1994-08-02 1997-04-15 Crump; Craig D. Apparatus and method for creating three-dimensional modeling data from an object
SE503498C2 (en) 1994-10-04 1996-06-24 Nobelpharma Ab Method and device for the product intended to be part of the human body and avscanningsanordning for example product
US5549476A (en) 1995-03-27 1996-08-27 Stern; Sylvan S. Method for making dental restorations and the dental restoration made thereby
JP3672966B2 (en) 1995-04-14 2005-07-20 株式会社ユニスン Dental prediction model of how to create and creating device
US5645421A (en) 1995-04-28 1997-07-08 Great Lakes Orthodontics Ltd. Orthodontic appliance debonder
US5655653A (en) 1995-07-11 1997-08-12 Minnesota Mining And Manufacturing Company Pouch for orthodontic appliance
DE69626287T2 (en) 1995-07-21 2003-11-27 Cadent Ltd Method and system for three-dimensional imaging of teeth
US5742700A (en) 1995-08-10 1998-04-21 Logicon, Inc. Quantitative dental caries detection system and method
US6382975B1 (en) 1997-02-26 2002-05-07 Technique D'usinage Sinlab Inc. Manufacturing a dental implant drill guide and a dental implant superstructure
US5725376A (en) 1996-02-27 1998-03-10 Poirier; Michel Methods for manufacturing a dental implant drill guide and a dental implant superstructure
US5692894A (en) 1996-04-08 1997-12-02 Raintree Essix, Inc. Thermoformed plastic dental retainer and method of construction
US5799100A (en) 1996-06-03 1998-08-25 University Of South Florida Computer-assisted method and apparatus for analysis of x-ray images using wavelet transforms
US5823778A (en) 1996-06-14 1998-10-20 The United States Of America As Represented By The Secretary Of The Air Force Imaging method for fabricating dental devices
US5725378A (en) 1996-08-16 1998-03-10 Wang; Hong-Chi Artificial tooth assembly
JPH1075963A (en) 1996-09-06 1998-03-24 Nikon Corp Method for designing dental prosthetic appliance model and medium recording program for executing the method
AUPO280996A0 (en) 1996-10-04 1996-10-31 Dentech Investments Pty Ltd Creation and utilization of 3D teeth models
JP2824424B2 (en) 1996-11-07 1998-11-11 株式会社エフ・エーラボ Three-dimensional machining method
US6217334B1 (en) 1997-01-28 2001-04-17 Iris Development Corporation Dental scanning method and apparatus
SE509141C2 (en) 1997-04-10 1998-12-07 Nobel Biocare Ab Arrangements and systems for dental product manufacturing and disclosure
US5957686A (en) 1997-04-29 1999-09-28 Anthony; Wayne L. Incisor block
US5848115A (en) 1997-05-02 1998-12-08 General Electric Company Computed tomography metrology
US5879158A (en) 1997-05-20 1999-03-09 Doyle; Walter A. Orthodontic bracketing system and method therefor
US5866058A (en) 1997-05-29 1999-02-02 Stratasys Inc. Method for rapid prototyping of solid models
US7771195B2 (en) * 2001-10-29 2010-08-10 Align Technology, Inc. Polar attachment devices and method for a dental appliance
AU744385B2 (en) 1997-06-20 2002-02-21 Align Technology, Inc. Method and system for incrementally moving teeth
US6450807B1 (en) 1997-06-20 2002-09-17 Align Technology, Inc. System and method for positioning teeth
US6309215B1 (en) 1997-06-20 2001-10-30 Align Technology Inc. Attachment devices and method for a dental applicance
US5975893A (en) 1997-06-20 1999-11-02 Align Technology, Inc. Method and system for incrementally moving teeth
US6705863B2 (en) 1997-06-20 2004-03-16 Align Technology, Inc. Attachment devices and methods for a dental appliance
US6152731A (en) 1997-09-22 2000-11-28 3M Innovative Properties Company Methods for use in dental articulation
US5934288A (en) 1998-04-23 1999-08-10 General Electric Company Method and apparatus for displaying 3D ultrasound data using three modes of operation
AUPP450598A0 (en) * 1998-07-06 1998-07-30 Palmisano, Richard George A mandibular advancement device
US5971754A (en) 1998-07-30 1999-10-26 Sondhi; Anoop Indirect bonding method and adhesive for orthodontic treatment
US5964587A (en) 1998-09-16 1999-10-12 Sato; Mikio Bite control point and a method to form a projection on tooth surface
US6183248B1 (en) 1998-11-30 2001-02-06 Muhammad Chishti System and method for releasing tooth positioning appliances
US6123544A (en) 1998-12-18 2000-09-26 3M Innovative Properties Company Method and apparatus for precise bond placement of orthodontic appliances
US6190165B1 (en) 1999-03-23 2001-02-20 Ormco Corporation Plastic orthodontic appliance having mechanical bonding base and method of making same
US6315553B1 (en) 1999-11-30 2001-11-13 Orametrix, Inc. Method and apparatus for site treatment of an orthodontic patient
US6350120B1 (en) 1999-11-30 2002-02-26 Orametrix, Inc. Method and apparatus for designing an orthodontic apparatus to provide tooth movement
US6633789B1 (en) 2000-02-17 2003-10-14 Align Technology, Inc. Effiicient data representation of teeth model
US6463344B1 (en) 2000-02-17 2002-10-08 Align Technology, Inc. Efficient data representation of teeth model
US6572372B1 (en) * 2000-04-25 2003-06-03 Align Technology, Inc. Embedded features and methods of a dental appliance
US20020192617A1 (en) * 2000-04-25 2002-12-19 Align Technology, Inc. Embedded features and methods of a dental appliance
US6524101B1 (en) 2000-04-25 2003-02-25 Align Technology, Inc. System and methods for varying elastic modulus appliances
US6454565B2 (en) * 2000-04-25 2002-09-24 Align Technology, Inc. Systems and methods for varying elastic modulus appliances
US6402707B1 (en) 2000-06-28 2002-06-11 Denupp Corporation Bvi Method and system for real time intra-orally acquiring and registering three-dimensional measurements and images of intra-oral objects and features
US7040896B2 (en) * 2000-08-16 2006-05-09 Align Technology, Inc. Systems and methods for removing gingiva from computer tooth models
US6482298B1 (en) 2000-09-27 2002-11-19 International Business Machines Corporation Apparatus for electroplating alloy films
US7104790B2 (en) 2002-05-31 2006-09-12 Cronauer Edward A Orthodontic appliance with embedded wire for moving teeth and method
US7077646B2 (en) * 2003-08-29 2006-07-18 Jack Keith Hilliard Automated method for producing improved orthodontic aligners
US7267545B2 (en) * 2005-01-11 2007-09-11 Ormco Corporation Self-ligating orthodontic bracket
US20060188834A1 (en) * 2005-02-18 2006-08-24 Hilliard Jack K Method for creating features in orthodontic aligners
US20060275731A1 (en) 2005-04-29 2006-12-07 Orthoclear Holdings, Inc. Treatment of teeth by aligners
US7637262B2 (en) 2006-06-12 2009-12-29 Bailey Dennis R Anti-retrusion oral appliance
EP2077793B1 (en) * 2006-10-16 2017-10-04 Jack Keith Hilliard System for producing orthodontic aligners by cnc machining
US20110269092A1 (en) 2010-04-30 2011-11-03 Align Technology, Inc. Reinforced aligner hooks

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10271923B2 (en) 2010-04-30 2019-04-30 Align Technology, Inc. Reinforced aligner hooks
US10421152B2 (en) 2011-09-21 2019-09-24 Align Technology, Inc. Laser cutting
US8641414B2 (en) 2011-10-10 2014-02-04 Align Technology, Inc. Automatic placement of precision cuts
US9675427B2 (en) * 2013-06-07 2017-06-13 Align Technology, Inc. Adjusting a tooth position
US20140363779A1 (en) * 2013-06-07 2014-12-11 Align Technology, Inc. Adjusting a tooth position
US10433934B2 (en) * 2013-06-07 2019-10-08 Align Technology, Inc. Adjusting a tooth position
US20170258555A1 (en) * 2013-06-07 2017-09-14 Align Technology, Inc. Adjusting a tooth position
US9937018B2 (en) * 2013-12-11 2018-04-10 Martin G. Martz Tooth positioning appliance with curved interconnecting elements
US20150157421A1 (en) * 2013-12-11 2015-06-11 Martin G. Martz Tooth positioning appliance with curved interconnecting elements
US20160310236A1 (en) * 2014-01-31 2016-10-27 Align Technology, Inc. Direct fabrication of orthodontic appliances with elastics
US10327872B2 (en) 2014-08-15 2019-06-25 Align Technology, Inc. Field curvature model for confocal imaging apparatus with curved focal surface
US10449016B2 (en) 2014-09-19 2019-10-22 Align Technology, Inc. Arch adjustment appliance
US10130445B2 (en) 2014-09-19 2018-11-20 Align Technology, Inc. Arch expanding appliance
WO2016198934A1 (en) * 2015-06-09 2016-12-15 Align Technology, Inc. Dental appliance binding structure
US10213277B2 (en) 2015-06-09 2019-02-26 Align Technology, Inc. Dental appliance binding structure
US10363116B2 (en) 2015-07-07 2019-07-30 Align Technology, Inc. Direct fabrication of power arms
WO2017007964A1 (en) 2015-07-07 2017-01-12 Align Technology, Inc. Orthodontic appliances with variable properties and integrally formed components
US10248883B2 (en) 2015-08-20 2019-04-02 Align Technology, Inc. Photograph-based assessment of dental treatments and procedures
US10335250B2 (en) 2015-10-07 2019-07-02 uLab Systems, Inc. Three-dimensional printed dental appliances using lattices
US10357336B2 (en) 2015-10-07 2019-07-23 uLab Systems, Inc. Systems and methods for fabricating dental appliances or shells
US10045835B2 (en) 2016-02-17 2018-08-14 Align Technology, Inc. Variable direction tooth attachments
US10383705B2 (en) 2016-06-17 2019-08-20 Align Technology, Inc. Orthodontic appliance performance monitor
US10123706B2 (en) 2016-07-27 2018-11-13 Align Technology, Inc. Intraoral scanner with dental diagnostics capabilities
US10380212B2 (en) 2016-07-27 2019-08-13 Align Technology, Inc. Methods and apparatuses for forming a three-dimensional volumetric model of a subject's teeth
US10357342B2 (en) 2016-09-21 2019-07-23 uLab Systems, Inc. Digital dental examination and documentation
IT201600125305A1 (en) * 2016-12-12 2018-06-12 Colonna Andrea orthodontic device
WO2018118769A1 (en) * 2016-12-19 2018-06-28 Align Technology, Inc. Aligners with enhanced gable bends
US10456043B2 (en) 2017-12-29 2019-10-29 Align Technology, Inc. Compact confocal dental scanning apparatus
US10390913B2 (en) 2018-01-26 2019-08-27 Align Technology, Inc. Diagnostic intraoral scanning

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