WO2020096532A1 - Guide pour installer des verrous orthodontiques - Google Patents

Guide pour installer des verrous orthodontiques Download PDF

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Publication number
WO2020096532A1
WO2020096532A1 PCT/TR2018/050666 TR2018050666W WO2020096532A1 WO 2020096532 A1 WO2020096532 A1 WO 2020096532A1 TR 2018050666 W TR2018050666 W TR 2018050666W WO 2020096532 A1 WO2020096532 A1 WO 2020096532A1
Authority
WO
WIPO (PCT)
Prior art keywords
orthodontic
positioning
positioning support
dental
frame
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/TR2018/050666
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English (en)
Inventor
Galip GUREL
Nuno SOUSA DIAS
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 PCT/TR2018/050666 priority Critical patent/WO2020096532A1/fr
Publication of WO2020096532A1 publication Critical patent/WO2020096532A1/fr
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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A61C7/146—Positioning or placement of brackets; Tools therefor
    • 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 relates to an apparatus for positioning, placement and bonding of dental brackets to a tooth or teeth over the course of orthodontic treatment.
  • the present invention also relates to the computer assisted orthodontic methods for maintaining desired position of teeth.
  • Orthodontics is the branch of dentistry dealing with teeth irregularities and corrections thereof through realignment, such as by means of braces.
  • the primary purpose of orthodontic treatment is to alter the position and reorient an individual's teeth so as to modify or improve their formation and thus function. Teeth may also be reoriented to serve cosmetic purposes.
  • brackets As the orthodontic element or component to be anchored on a tooth's surface, but it is to be understood that this is only by way of example and the invention applies to all other types of orthodontics elements, mutatis mutandis, such as for example tubes, springs and other appliances
  • the location of the bracket on the tooth as well as its orientation is a critical factor in determining the direction of movement of the teeth during the treatment, and accurate placement may ensure that the teeth are aligned with a single bracket bonding treatment. Conversely, less accurate placement of brackets may require repeated treatments, including repeated bonding and wire bending procedures until the final alignment is achieved.
  • Brackets affixed to teeth surfaces serve to support wires and tensioning springs to exert moments of force acting to move the teeth subjected to these forces to a degree and in a direction causing the teeth to assume a desired posture in the dental arch.
  • the orthodontist decides on a general scheme of placing the brackets on the buccal (front) surface of teeth and attaches them thereto, in a predetermined precise location and orientation. It is known in the practice that, prior to this step, the orthodontist prepares a three dimensional plaster model of the patient's teeth, based on which the positioning and application details of the bracket scheme is determined as well as the desired position of each of the force-exerting orthodontic implements on patient's teeth. Said placement determines the overall outcome of said movements such as the degree and direction of force exerted which cause teeth to move to new positions and orientations. Deviations from these planned positions are detrimental to the final outcome, which obligates the precision in positioning brackets and accuracy with the positioning scheme.
  • brackets include steps of positioning the bracket element on the tooth surface and then affixing said bracket element thereto with the aid of a bonding agent such as a chemical adhesive that self-cures within 1 to 3 minutes.
  • Manual positioning as described rather briefly above, depend critically on mechanical skill and therefore is prone to human error. Firstly, positioning of brackets onto buccal surfaces of teeth are inherently difficult due to slippery and tackles surface of teeth. In addition, there is also difficulty in the disengagement of the bracket from the positioning tool, as this process causes a slight movement of the bracket on the tooth. The attempts made in the state of the art to alleviate the problems associated with properly positioning brackets on the surfaces of teeth are described in the following patents.
  • W02016210402A1 discloses a system and computer-implemented method for guiding the placement of orthodontic brackets.
  • Said system can include an indexing tool designed to conform to at least a portion of a patient's teeth.
  • the system can receive signals from a sensor at the indexing tool as well as signals from a sensor at a bracket positioning tool in order to track spatial location and/or orientation of one or more brackets relative to the surface of the patient's actual or modeled teeth.
  • US2014287376A1 discloses an apparatus and method for placing bracket guide features on a model dentition to assist in accurate bracket placement.
  • Said apparatus comprises a dentition scanner that outputs an electronic model of a dentition and a tray forming station wherein the tray forming station further includes a bracket guide feature placement engine for placing bracket guide features on the electronic model of the dentition, and a three- dimensional printer for printing a physical model of the dentition with the bracket guide features appropriately placed.
  • WO2013153325A1 discloses a device for adhering orthodontic attachments to a dental arch, which includes clips and a general splint.
  • the invention makes it possible to standardize the clips as a function of the orthodontic fasteners and to limit the bulk of said orthodontic fastener bonding device so as to facilitate its placement in the patient's mouth.
  • US2010092904A1 discloses a device for positioning at least one orthodontic element on a dentition by means of an orthodontic element holder for holding at least one orthodontic element.
  • the device comprises a positioning template for fitting on at least a part of the dentition, having at least one open area for allowing an orthodontic element to contact the dentition.
  • the positioning template is further provided with at least one guide coupled to and extending from the positioning template, which suitable for cooperating with an orthodontic element holder for guiding the orthodontic element held by the orthodontic element holder to the at least one open area.
  • US2005233276A1 discloses a targeting device and method for enabling one or more orthodontic elements to be aligned with and bonded onto at least one tooth in a predetermined manner.
  • the device is in the form of a shell that has, for each tooth with respect to which it is desired to align an orthodontic element, a cavity shaped to receive the tooth.
  • Targeting indicators are also provided, and are configured for enabling the corresponding orthodontic elements to be guided into alignment in the required predetermined manner with respect to a tooth that is received in a corresponding cavity.
  • the disclosed invention offers a cost-effective, precise and efficient solution to the problem of positioning brackets with the use of just the right amount of adhesive and repositioning brackets in case of need.
  • the device according to the disclosed invention preferably comprises a dental frame extended with buccal and labial supports for enhanced traction and fixed stance in relation to the patient's dental arch supported further with a tongue depressor.
  • Device further comprises positioning support with primary and secondary wedge characteristics for bottom and side respectively, forming an incomplete yet sufficient frame for the positioning and adhesion of brackets.
  • Another object of the disclosed invention is to provide a bracket positioning guide for enabling the removal of excess bracket adhesive with increased speed and efficiency.
  • FIGS. 1A-D demonstrate frontal views of the steps of attaching brackets onto a patient's teeth using an orthodontic apparatus in accordance with the disclosed invention.
  • Figures 2A-B demonstrate top perspective views of the steps of attaching brackets onto a patient's teeth using an orthodontic apparatus in accordance with the disclosed invention.
  • Figure 3 demonstrates a bottom perspective view of a patient's teeth and an orthodontic apparatus in accordance with the disclosed invention
  • Figures 4A-B demonstrate close up views of the steps of attaching brackets onto a patient's teeth using an orthodontic apparatus in accordance with the disclosed invention.
  • FIGS 5A-C demonstrate perspective views of an orthodontic apparatus in accordance with the disclosed invention.
  • Figure 1 demonstrates the steps of attaching brackets (22) onto a patient's teeth (11) using an orthodontic apparatus (12) of the invention.
  • Orthodontic apparatus (12) comprises a dental frame (13) and a plurality of bracket positioning frames (17). Said dental frame (13) is designed to fit over the gum and the dental arch (10) of the patient.
  • the buccal supports (14) and labial supports (15) on dental frame (13) are complementary to the external shape of the teeth (11) arranged over the dental arch (10) that is received thereby, in particular the buccal and labial surfaces of the teeth respectively, as can be seen in further detail in Figure 3.
  • Such structures namely buccal (14) and labial (15) supports extending from the dental frame (13) enhance the stability of the apparatus (12) by and large, in addition to providing a passive and indirect physical guide to the attachment of brackets (22) onto teeth (11) situated on said dental arch (10), which is demonstrated in actual or digitally modeled incarnation in Fig. 1A.
  • Position of said dental frame (13) with respect to teeth could be found in further illustration, Fig. IB, where buccal supports (14) visibly contact individual teeth (11) at reciprocating locations.
  • brackets (22) for individual teeth (11) are landed on their digitally designated locations using the joint structure of primary (19) and secondary (20) positioning support bars/surfaces.
  • brackets (22) are attached to the desired location marked by said primary and secondary (19, 20) positioning support bars, and finally as seen in Fig. ID, apparatus (12) is removed, leaving brackets (22) fixed at their digitally designated locations.
  • FIG 2A illustrates the close-up perspective view of the state of the orthodontic apparatus (12) in relation to the upper jaw and dental arch (10) of the patient, structural characteristics of primary and secondary (19, 20) positioning support bars, which are wedge-shaped with shorter sides facing outward from the teeth (11) of the patient. Longer sides of wedges comprising primary and secondary (19, 20) positioning support bars conversely face inward, touching patient's teeth (11) and thus forming the half-frame for brackets (22).
  • Figure 2B demonstrates the orthodontic apparatus (12) with the brackets (22) positioned at their designated slots formed by said half-frame brought together by the joining of primary and secondary (19, 20) positioning support bars in wedge form as mentioned earlier.
  • Figure 3 displays a patient's dental arch (10) fitted with the orthodontic apparatus (12), with a bottom perspective view showing the dental frame (13) in the forefront. Also, relatively more prominently visible are palati- lingual supports (15) landing on palate locations across respective first two molars on both sides, and tongue depressor (16) installed with the purpose of keeping the tongue of the patient under restriction during the quite precise and delicate process of bracket (22) attachment. While figure in question illustrates an embodiment in a bracketing setting of ten teeth, different embodiments may cover cases of different numbers of teeth to be bracketed in the context of orthodontic treatment.
  • Figure 4 illustrates even a greater focus on bracket (22) attachment detail on one tooth (11) on the dental arch (10) of the patient.
  • Figure 4A is further close-up view of a one tooth (11) of the patient, with one positioning frame (17) formed on the surface of said tooth (11), formed by the spatial relationship between one primary and one secondary (19, 20) positioning support bars, that extend upwards from the dental frame (13) of the orthodontic apparatus (12), not shown, with the aid of a positioning support attachment bar (18).
  • Said secondary positioning support surface (20) displays wedge characteristics i.e.
  • Said groove (23), once comes into contact with the primary positioning support bar (19) is able to stay without its own weight not knocking itself over, however, as this is not in any embodiment an intended consequence of a formation or positioning, is of trivial function and merely a byproduct of said primary positioning support bar (19) not displaying wedge geometry as its secondary positioning support (20) counterpart.
  • Figure 4B also illustrates the possible view of a bracket (22) once adhesive is applied to the surface of a tooth (11) on the dental arch (10), following which said bracket (22) is pressed thereon with appropriate force to activate the adhesive, subject to which excess amount of adhesive will exit the shrinking space from the side of said bracket (22), causing a buildup in said secondary positioning support bar (20) surface.
  • Said surface referred to as the adhesive cleaning surface (21) in the part list and figures, located on the face that looks away from the surface of the tooth (11) it is positioned upon; possesses slope character, edge of which closer to the surface of said tooth (11) is considerably shorter to allow excess adhesive to be delivered thereto.
  • brackets (22) may require different sets of material constraints as brackets (22) may contain ceramics, metals and plastics, accordingly which chemically or light-cured adhesive types are considered.
  • One aspect that doesn't change with the material used in the production of orthodontic brackets (22) or the type of adhesive used is the importance of not applying excessive amounts of glue on the surface of teeth (11) to improve efficiency and reduce waste.
  • positioning frames (17) formed by the joining of primary and secondary positioning support bars (19, 20) are established in a horizontally symmetrical manner: Taking face midline as the axis of symmetry, right side of the dental arch (10) are subject to positioning frames (17) with a secondary positioning support surface (20) on the right-hand side with wedge slope shallower towards left. Conversely, on the left side of the dental arch (10), positioning frames (17) comprise secondary positioning support surfaces (20) on the left- hand side.
  • positioning frames (17) always form a volume chunk that, as it moves away from the surface of the tooth (11) it is scaffolded on, grows away from the direction of the midline.
  • Figure 5A demonstrates front top perspective view of the orthodontic device (12) according to at least one embodiment, where dental frame (13) and virtually any other extension thereon, such as positioning frames (17), tongue depressor (16), buccal-labial (14) and palati-lingual (15) extremities are visible.
  • Figure 5B displays said orthodontic device (12) from the top left perspective view, still visible are all extremities an various aspects; while 5C shows the front bottom perspective, showing tongue depressor (16) in particular focus.
  • the disclosed invention relates to a device for installing orthodontic elements, specifically brackets (22) to teeth (11) on a patient's dental arch (10) in the course of orthodontic treatment with the aid of computer modeling and digital impression.
  • Disclosed invention comprises a dental frame (13) prompted into relation with said dental arch (10) through the use of buccal-labial (14) and palati-lingual support (15) means; said dental frame (13) further comprising positioning support attachment bars (18) mounted thereon to jointly extend primary and secondary (19, 20) positioning support bars, in themselves which form a positioning frame (17) as a zone to house brackets (22).
  • Said secondary positioning support surface (20) further comprises an outwardly sloped adhesive cleaning surface (21) for collection and removal of excess adhesive material, next to as a general system improving precision and accuracy, as well as speed and reducing waste.
  • Each positioning frame (17) comprises a primary positioning support bar (19) and a secondary positioning support surface (20) attached perpendicular to each other to provide support to the bottom and side of bracket (22), and a positioning support attachment bar (18) for attaching said primary positioning support bar (19) and a secondary positioning support surface (20) to said dental frame (13).
  • Possible other embodiments include further details concerning different sets of teeth (11) to be bracketed resulting in different design specifications, changing the number, orientation and separation of elements such as positioning support attachment bar (18), buccal-labial support (14) and palati-lingual support (15).
  • an orthodontic device (12) for installing orthodontic elements such as brackets (22) onto a dental arch (10) with the aid of a dental frame (13) positioned over said dental arch (10) based on digital modeling is proposed.
  • said dental frame (13) comprises at least one monolithic arc modeled after said dental arch (10) on which at least one positioning support placement bar (18) extends per tooth to be bracketed.
  • said at least one positioning support placement bar (18) comprises a joint for one primary positioning support bar (19) to meet.
  • said secondary positioning support surface (20) further comprises one adhesive cleaning surface (21) possessing wedge characteristics for excess glue material to accumulate.
  • said dental frame (13) further comprises at least one positioning frame (17) conceived as a plurality of said primary and secondary (19, 20) positioning support bars.
  • said at least one positioning support bar (18) joint comprises a connection with said primary and secondary (19, 20) positioning support bars at respective ends.
  • said primary positioning support bar (19) further comprises a horizontal orientation.
  • said primary positioning support bar (19) provides a linear surface for hosting brackets (22) on their own weight.
  • said linear surface formed by said primary positioning support bar (19) fits comfortably through a bracket groove (23) found in said brackets (22).
  • said dental frame (13) further comprises at least one buccal-labial support (14) extending from its body towards a tooth, providing an offset and attachment means.
  • said dental frame (13) further comprises at least one palati-lingual support (15) extending from its body towards sides of the palate, providing attachment means.
  • said dental frame (13) further comprises a tongue depressor (16) crossing the palate, providing tongue restraint during bracketing.
  • said at least one buccal- labial support (14) and at least one palati-labial support (15) constitute antagonist positioning in terms of force applied to the gum, enabling firm positioning of said dental frame (13).

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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)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne un dispositif pour installer des éléments orthodontiques, en particulier des verrous (22) sur des dents (11) sur l'arcade dentaire d'un patient (10) dans des options de traitement orthodontique par modélisation informatique et impression numérique. L'invention concerne un cadre dentaire (13) sollicité par rapport à ladite arcade dentaire (10) par l'utilisation de moyens de support buccal-labial (14) et palati-lingual (15) ; ledit cadre dentaire (13) comprenant en outre des barres de fixation de support de positionnement (18) montées sur celui-ci pour étendre conjointement des barres de support de positionnement primaire et secondaire (19, 20), qui forment en elles-mêmes un cadre de positionnement (17) en tant que zone pour loger des verrous (22). Ladite surface de support de positionnement secondaire (20) comprend en outre une surface de nettoyage adhésive (21) inclinée vers l'extérieur pour la collecte et le retrait de matériau adhésif en excès, ensuite comme un système général améliorant la précision et l'exactitude, ainsi que la vitesse et la réduction des déchets.
PCT/TR2018/050666 2018-11-07 2018-11-07 Guide pour installer des verrous orthodontiques Ceased WO2020096532A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2018/050666 WO2020096532A1 (fr) 2018-11-07 2018-11-07 Guide pour installer des verrous orthodontiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2018/050666 WO2020096532A1 (fr) 2018-11-07 2018-11-07 Guide pour installer des verrous orthodontiques

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WO2020096532A1 true WO2020096532A1 (fr) 2020-05-14

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050233276A1 (en) 2004-04-15 2005-10-20 Avi Kopelman Dental targetting device and method
US20100092904A1 (en) 2007-02-19 2010-04-15 Materialise Dental N.V. Device for positioning at least one orthodontic element
WO2013153325A1 (fr) 2012-04-10 2013-10-17 Selarl De Chirurgien Dentiste Du Docteur Moreau Specialiste Qualifie En Orthopedie Dento-Faciale Dispositif de collage d'attaches orthodontiques et procede de fabrication dudit dispositif
US20140287376A1 (en) 2013-03-13 2014-09-25 Bruce Willard Hultgren Orthodontic bracket placement using bracket guide features
CN105832433A (zh) * 2016-03-14 2016-08-10 四川大学 一种用于辅助唇侧托槽定位的导航装置及制作方法
WO2016210402A1 (fr) 2015-06-26 2016-12-29 University Of Florida Research Foundation, Inc. Application guidée de verrou orthodontique
CN107049531A (zh) * 2017-04-05 2017-08-18 深圳市倍康美医疗电子商务有限公司 一种间接粘接导向器及其成型方法
CN105496575B (zh) * 2015-12-31 2018-06-22 上海交通大学医学院附属第九人民医院 托槽定位架和托槽定位架的制造方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050233276A1 (en) 2004-04-15 2005-10-20 Avi Kopelman Dental targetting device and method
US20100092904A1 (en) 2007-02-19 2010-04-15 Materialise Dental N.V. Device for positioning at least one orthodontic element
WO2013153325A1 (fr) 2012-04-10 2013-10-17 Selarl De Chirurgien Dentiste Du Docteur Moreau Specialiste Qualifie En Orthopedie Dento-Faciale Dispositif de collage d'attaches orthodontiques et procede de fabrication dudit dispositif
US20140287376A1 (en) 2013-03-13 2014-09-25 Bruce Willard Hultgren Orthodontic bracket placement using bracket guide features
WO2016210402A1 (fr) 2015-06-26 2016-12-29 University Of Florida Research Foundation, Inc. Application guidée de verrou orthodontique
CN105496575B (zh) * 2015-12-31 2018-06-22 上海交通大学医学院附属第九人民医院 托槽定位架和托槽定位架的制造方法
CN105832433A (zh) * 2016-03-14 2016-08-10 四川大学 一种用于辅助唇侧托槽定位的导航装置及制作方法
CN107049531A (zh) * 2017-04-05 2017-08-18 深圳市倍康美医疗电子商务有限公司 一种间接粘接导向器及其成型方法

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